/wp-content/plugins/bbpress/includes/topics/functions.php

<?php



/**

 * bbPress Topic Functions

 *

 * @package bbPress

 * @subpackage Functions

 */



// Exit if accessed directly

if ( !defined( 'ABSPATH' ) ) exit;



/** Insert ********************************************************************/



/**

 * A wrapper for wp_insert_post() that also includes the necessary meta values

 * for the topic to function properly.

 *

 * @since bbPress (r3349)

 *

 * @uses bbp_parse_args()

 * @uses bbp_get_topic_post_type()

 * @uses wp_insert_post()

 * @uses update_post_meta()

 *

 * @param array $topic_data Forum post data

 * @param arrap $topic_meta Forum meta data

 */

function bbp_insert_topic( $topic_data = array(), $topic_meta = array() ) {



	// Parse arguments against default values

	$topic_data = bbp_parse_args( $topic_data, array(

		'post_parent'    => 0, // forum ID

		'post_status'    => bbp_get_public_status_id(),

		'post_type'      => bbp_get_topic_post_type(),

		'post_author'    => bbp_get_current_user_id(),

		'post_password'  => '',

		'post_content'   => '',

		'post_title'     => '',

		'comment_status' => 'closed',

		'menu_order'     => 0,

	), 'insert_topic' );



	// Insert topic

	$topic_id   = wp_insert_post( $topic_data );



	// Bail if no topic was added

	if ( empty( $topic_id ) )

		return false;



	// Parse arguments against default values

	$topic_meta = bbp_parse_args( $topic_meta, array(

		'author_ip'          => bbp_current_author_ip(),

		'forum_id'           => 0,

		'topic_id'           => $topic_id,

		'voice_count'        => 1,

		'reply_count'        => 0,

		'reply_count_hidden' => 0,

		'last_reply_id'      => 0,

		'last_active_id'     => $topic_id,

		'last_active_time'   => get_post_field( 'post_date', $topic_id, 'db' ),

	), 'insert_topic_meta' );



	// Insert topic meta

	foreach ( $topic_meta as $meta_key => $meta_value ) {

		update_post_meta( $topic_id, '_bbp_' . $meta_key, $meta_value );

	}



	// Update the forum

	$forum_id = bbp_get_topic_forum_id( $topic_id );

	if ( !empty( $forum_id ) ) {

		bbp_update_forum( array( 'forum_id' => $forum_id ) );

	}



	// Return new topic ID

	return $topic_id;

}



/** Post Form Handlers ********************************************************/



/**

 * Handles the front end topic submission

 *

 * @param string $action The requested action to compare this function to

 * @uses bbp_add_error() To add an error message

 * @uses bbp_verify_nonce_request() To verify the nonce and check the referer

 * @uses bbp_is_anonymous() To check if an anonymous post is being made

 * @uses current_user_can() To check if the current user can publish topic

 * @uses bbp_get_current_user_id() To get the current user id

 * @uses bbp_filter_anonymous_post_data() To filter anonymous data

 * @uses bbp_set_current_anonymous_user_data() To set the anonymous user cookies

 * @uses is_wp_error() To check if the value retrieved is a {@link WP_Error}

 * @uses esc_attr() For sanitization

 * @uses bbp_is_forum_category() To check if the forum is a category

 * @uses bbp_is_forum_closed() To check if the forum is closed

 * @uses bbp_is_forum_private() To check if the forum is private

 * @uses bbp_check_for_flood() To check for flooding

 * @uses bbp_check_for_duplicate() To check for duplicates

 * @uses bbp_get_topic_post_type() To get the topic post type

 * @uses remove_filter() To remove kses filters if needed

 * @uses apply_filters() Calls 'bbp_new_topic_pre_title' with the content

 * @uses apply_filters() Calls 'bbp_new_topic_pre_content' with the content

 * @uses bbPress::errors::get_error_codes() To get the {@link WP_Error} errors

 * @uses wp_insert_post() To insert the topic

 * @uses do_action() Calls 'bbp_new_topic' with the topic id, forum id,

 *                    anonymous data and reply author

 * @uses bbp_stick_topic() To stick or super stick the topic

 * @uses bbp_unstick_topic() To unstick the topic

 * @uses bbp_get_topic_permalink() To get the topic permalink

 * @uses wp_safe_redirect() To redirect to the topic link

 * @uses bbPress::errors::get_error_messages() To get the {@link WP_Error} error

 *                                              messages

 */

function bbp_new_topic_handler( $action = '' ) {



	// Bail if action is not bbp-new-topic

	if ( 'bbp-new-topic' !== $action )

		return;



	// Nonce check

	if ( ! bbp_verify_nonce_request( 'bbp-new-topic' ) ) {

		bbp_add_error( 'bbp_new_topic_nonce', __( '<strong>ERROR</strong>: Are you sure you wanted to do that?', 'bbpress' ) );

		return;

	}



	// Define local variable(s)

	$view_all = false;

	$forum_id = $topic_author = $anonymous_data = 0;

	$topic_title = $topic_content = '';

	$terms = array( bbp_get_topic_tag_tax_id() => array() );



	/** Topic Author **********************************************************/



	// User is anonymous

	if ( bbp_is_anonymous() ) {



		// Filter anonymous data

		$anonymous_data = bbp_filter_anonymous_post_data();



		// Anonymous data checks out, so set cookies, etc...

		if ( !empty( $anonymous_data ) && is_array( $anonymous_data ) ) {

			bbp_set_current_anonymous_user_data( $anonymous_data );

		}



	// User is logged in

	} else {



		// User cannot create topics

		if ( !current_user_can( 'publish_topics' ) ) {

			bbp_add_error( 'bbp_topic_permissions', __( '<strong>ERROR</strong>: You do not have permission to create new topics.', 'bbpress' ) );

			return;

		}



		// Topic author is current user

		$topic_author = bbp_get_current_user_id();

	}



	// Remove kses filters from title and content for capable users and if the nonce is verified

	if ( current_user_can( 'unfiltered_html' ) && !empty( $_POST['_bbp_unfiltered_html_topic'] ) && wp_create_nonce( 'bbp-unfiltered-html-topic_new' ) === $_POST['_bbp_unfiltered_html_topic'] ) {

		remove_filter( 'bbp_new_topic_pre_title',   'wp_filter_kses'      );

		remove_filter( 'bbp_new_topic_pre_content', 'bbp_encode_bad',  10 );

		remove_filter( 'bbp_new_topic_pre_content', 'bbp_filter_kses', 30 );

	}



	/** Topic Title ***********************************************************/



	if ( !empty( $_POST['bbp_topic_title'] ) )

		$topic_title = esc_attr( strip_tags( $_POST['bbp_topic_title'] ) );



	// Filter and sanitize

	$topic_title = apply_filters( 'bbp_new_topic_pre_title', $topic_title );



	// No topic title

	if ( empty( $topic_title ) )

		bbp_add_error( 'bbp_topic_title', __( '<strong>ERROR</strong>: Your topic needs a title.', 'bbpress' ) );



	/** Topic Content *********************************************************/



	if ( !empty( $_POST['bbp_topic_content'] ) )

		$topic_content = $_POST['bbp_topic_content'];



	// Filter and sanitize

	$topic_content = apply_filters( 'bbp_new_topic_pre_content', $topic_content );



	// No topic content

	if ( empty( $topic_content ) )

		bbp_add_error( 'bbp_topic_content', __( '<strong>ERROR</strong>: Your topic cannot be empty.', 'bbpress' ) );



	/** Topic Forum ***********************************************************/



	// Error check the POST'ed topic id

	if ( isset( $_POST['bbp_forum_id'] ) ) {



		// Empty Forum id was passed

		if ( empty( $_POST['bbp_forum_id'] ) ) {

			bbp_add_error( 'bbp_topic_forum_id', __( '<strong>ERROR</strong>: Forum ID is missing.', 'bbpress' ) );



		// Forum id is not a number

		} elseif ( ! is_numeric( $_POST['bbp_forum_id'] ) ) {

			bbp_add_error( 'bbp_topic_forum_id', __( '<strong>ERROR</strong>: Forum ID must be a number.', 'bbpress' ) );



		// Forum id might be valid

		} else {



			// Get the forum id

			$posted_forum_id = intval( $_POST['bbp_forum_id'] );



			// Forum id is empty

			if ( 0 === $posted_forum_id ) {

				bbp_add_error( 'bbp_topic_forum_id', __( '<strong>ERROR</strong>: Forum ID is missing.', 'bbpress' ) );



			// Forum id is a negative number

			} elseif ( 0 > $posted_forum_id ) {

				bbp_add_error( 'bbp_topic_forum_id', __( '<strong>ERROR</strong>: Forum ID cannot be a negative number.', 'bbpress' ) );



			// Forum does not exist

			} elseif ( ! bbp_get_forum( $posted_forum_id ) ) {

				bbp_add_error( 'bbp_topic_forum_id', __( '<strong>ERROR</strong>: Forum does not exist.', 'bbpress' ) );



			// Use the POST'ed forum id

			} else {

				$forum_id = $posted_forum_id;

			}

		}

	}



	// Forum exists

	if ( !empty( $forum_id ) ) {



		// Forum is a category

		if ( bbp_is_forum_category( $forum_id ) ) {

			bbp_add_error( 'bbp_new_topic_forum_category', __( '<strong>ERROR</strong>: This forum is a category. No topics can be created in this forum.', 'bbpress' ) );



		// Forum is not a category

		} else {



			// Forum is closed and user cannot access

			if ( bbp_is_forum_closed( $forum_id ) && !current_user_can( 'edit_forum', $forum_id ) ) {

				bbp_add_error( 'bbp_new_topic_forum_closed', __( '<strong>ERROR</strong>: This forum has been closed to new topics.', 'bbpress' ) );

			}



			// Forum is private and user cannot access

			if ( bbp_is_forum_private( $forum_id ) ) {

				if ( !current_user_can( 'read_private_forums' ) ) {

					bbp_add_error( 'bbp_new_topic_forum_private', __( '<strong>ERROR</strong>: This forum is private and you do not have the capability to read or create new topics in it.', 'bbpress' ) );

				}



			// Forum is hidden and user cannot access

			} elseif ( bbp_is_forum_hidden( $forum_id ) ) {

				if ( !current_user_can( 'read_hidden_forums' ) ) {

					bbp_add_error( 'bbp_new_topic_forum_hidden', __( '<strong>ERROR</strong>: This forum is hidden and you do not have the capability to read or create new topics in it.', 'bbpress' ) );

				}

			}

		}

	}



	/** Topic Flooding ********************************************************/



	if ( !bbp_check_for_flood( $anonymous_data, $topic_author ) )

		bbp_add_error( 'bbp_topic_flood', __( '<strong>ERROR</strong>: Slow down; you move too fast.', 'bbpress' ) );



	/** Topic Duplicate *******************************************************/



	if ( !bbp_check_for_duplicate( array( 'post_type' => bbp_get_topic_post_type(), 'post_author' => $topic_author, 'post_content' => $topic_content, 'anonymous_data' => $anonymous_data ) ) )

		bbp_add_error( 'bbp_topic_duplicate', __( '<strong>ERROR</strong>: Duplicate topic detected; it looks as though you&#8217;ve already said that!', 'bbpress' ) );



	/** Topic Blacklist *******************************************************/



	if ( !bbp_check_for_blacklist( $anonymous_data, $topic_author, $topic_title, $topic_content ) )

		bbp_add_error( 'bbp_topic_blacklist', __( '<strong>ERROR</strong>: Your topic cannot be created at this time.', 'bbpress' ) );



	/** Topic Status **********************************************************/



	// Maybe put into moderation

	if ( !bbp_check_for_moderation( $anonymous_data, $topic_author, $topic_title, $topic_content ) ) {

		$topic_status = bbp_get_pending_status_id();



	// Check a whitelist of possible topic status ID's

	} elseif ( !empty( $_POST['bbp_topic_status'] ) && in_array( $_POST['bbp_topic_status'], array_keys( bbp_get_topic_statuses() ) ) ) {

		$topic_status = $_POST['bbp_topic_status'];



	// Default to published if nothing else

	} else {

		$topic_status = bbp_get_public_status_id();

	}



	/** Topic Tags ************************************************************/



	if ( bbp_allow_topic_tags() && !empty( $_POST['bbp_topic_tags'] ) ) {



		// Escape tag input

		$terms = esc_attr( strip_tags( $_POST['bbp_topic_tags'] ) );



		// Explode by comma

		if ( strstr( $terms, ',' ) ) {

			$terms = explode( ',', $terms );

		}



		// Add topic tag ID as main key

		$terms = array( bbp_get_topic_tag_tax_id() => $terms );

	}



	/** Additional Actions (Before Save) **************************************/



	do_action( 'bbp_new_topic_pre_extras', $forum_id );



	// Bail if errors

	if ( bbp_has_errors() )

		return;



	/** No Errors *************************************************************/



	// Add the content of the form to $topic_data as an array.

	// Just in time manipulation of topic data before being created

	$topic_data = apply_filters( 'bbp_new_topic_pre_insert', array(

		'post_author'    => $topic_author,

		'post_title'     => $topic_title,

		'post_content'   => $topic_content,

		'post_status'    => $topic_status,

		'post_parent'    => $forum_id,

		'post_type'      => bbp_get_topic_post_type(),

		'tax_input'      => $terms,

		'comment_status' => 'closed'

	) );



	// Insert topic

	$topic_id = wp_insert_post( $topic_data );



	/** No Errors *************************************************************/



	if ( !empty( $topic_id ) && !is_wp_error( $topic_id ) ) {



		/** Trash Check *******************************************************/



		// If the forum is trash, or the topic_status is switched to

		// trash, trash it properly

		if ( ( get_post_field( 'post_status', $forum_id ) === bbp_get_trash_status_id() ) || ( $topic_data['post_status'] === bbp_get_trash_status_id() ) ) {



			// Trash the reply

			wp_trash_post( $topic_id );



			// Force view=all

			$view_all = true;

		}



		/** Spam Check ********************************************************/



		// If reply or topic are spam, officially spam this reply

		if ( $topic_data['post_status'] === bbp_get_spam_status_id() ) {

			add_post_meta( $topic_id, '_bbp_spam_meta_status', bbp_get_public_status_id() );



			// Force view=all

			$view_all = true;

		}



		/** Update counts, etc... *********************************************/



		do_action( 'bbp_new_topic', $topic_id, $forum_id, $anonymous_data, $topic_author );



		/** Stickies **********************************************************/



		// Sticky check after 'bbp_new_topic' action so forum ID meta is set

		if ( !empty( $_POST['bbp_stick_topic'] ) && in_array( $_POST['bbp_stick_topic'], array( 'stick', 'super', 'unstick' ) ) ) {



			// What's the caps?

			if ( current_user_can( 'moderate' ) ) {



				// What's the haps?

				switch ( $_POST['bbp_stick_topic'] ) {



					// Sticky in this forum

					case 'stick'   :

						bbp_stick_topic( $topic_id );

						break;



					// Super sticky in all forums

					case 'super'   :

						bbp_stick_topic( $topic_id, true );

						break;



					// We can avoid this as it is a new topic

					case 'unstick' :

					default        :

						break;

				}

			}

		}



		/** Additional Actions (After Save) ***********************************/



		do_action( 'bbp_new_topic_post_extras', $topic_id );



		/** Redirect **********************************************************/



		// Redirect to

		$redirect_to = bbp_get_redirect_to();



		// Get the topic URL

		$redirect_url = bbp_get_topic_permalink( $topic_id, $redirect_to );



		// Add view all?

		if ( bbp_get_view_all() || !empty( $view_all ) ) {



			// User can moderate, so redirect to topic with view all set

			if ( current_user_can( 'moderate' ) ) {

				$redirect_url = bbp_add_view_all( $redirect_url );



			// User cannot moderate, so redirect to forum

			} else {

				$redirect_url = bbp_get_forum_permalink( $forum_id );

			}

		}



		// Allow to be filtered

		$redirect_url = apply_filters( 'bbp_new_topic_redirect_to', $redirect_url, $redirect_to, $topic_id );



		/** Successful Save ***************************************************/



		// Redirect back to new topic

		wp_safe_redirect( $redirect_url );



		// For good measure

		exit();



	// Errors

	} else {

		$append_error = ( is_wp_error( $topic_id ) && $topic_id->get_error_message() ) ? $topic_id->get_error_message() . ' ' : '';

		bbp_add_error( 'bbp_topic_error', __( '<strong>ERROR</strong>: The following problem(s) have been found with your topic:' . $append_error, 'bbpress' ) );

	}

}



/**

 * Handles the front end edit topic submission

 *

 * @param string $action The requested action to compare this function to

 * @uses bbp_add_error() To add an error message

 * @uses bbp_get_topic() To get the topic

 * @uses bbp_verify_nonce_request() To verify the nonce and check the request

 * @uses bbp_is_topic_anonymous() To check if topic is by an anonymous user

 * @uses current_user_can() To check if the current user can edit the topic

 * @uses bbp_filter_anonymous_post_data() To filter anonymous data

 * @uses is_wp_error() To check if the value retrieved is a {@link WP_Error}

 * @uses esc_attr() For sanitization

 * @uses bbp_is_forum_category() To check if the forum is a category

 * @uses bbp_is_forum_closed() To check if the forum is closed

 * @uses bbp_is_forum_private() To check if the forum is private

 * @uses remove_filter() To remove kses filters if needed

 * @uses apply_filters() Calls 'bbp_edit_topic_pre_title' with the title and

 *                        topic id

 * @uses apply_filters() Calls 'bbp_edit_topic_pre_content' with the content

 *                        and topic id

 * @uses bbPress::errors::get_error_codes() To get the {@link WP_Error} errors

 * @uses wp_save_post_revision() To save a topic revision

 * @uses bbp_update_topic_revision_log() To update the topic revision log

 * @uses bbp_stick_topic() To stick or super stick the topic

 * @uses bbp_unstick_topic() To unstick the topic

 * @uses wp_update_post() To update the topic

 * @uses do_action() Calls 'bbp_edit_topic' with the topic id, forum id,

 *                    anonymous data and reply author

 * @uses bbp_move_topic_handler() To handle movement of a topic from one forum

 *                                 to another

 * @uses bbp_get_topic_permalink() To get the topic permalink

 * @uses wp_safe_redirect() To redirect to the topic link

 * @uses bbPress::errors::get_error_messages() To get the {@link WP_Error} error

 *                                              messages

 */

function bbp_edit_topic_handler( $action = '' ) {



	// Bail if action is not bbp-edit-topic

	if ( 'bbp-edit-topic' !== $action )

		return;



	// Define local variable(s)

	$revisions_removed = false;

	$topic = $topic_id = $topic_author = $forum_id = $anonymous_data = 0;

	$topic_title = $topic_content = $topic_edit_reason = '';



	/** Topic *****************************************************************/



	// Topic id was not passed

	if ( empty( $_POST['bbp_topic_id'] ) ) {

		bbp_add_error( 'bbp_edit_topic_id', __( '<strong>ERROR</strong>: Topic ID not found.', 'bbpress' ) );

		return;



	// Topic id was passed

	} elseif ( is_numeric( $_POST['bbp_topic_id'] ) ) {

		$topic_id = (int) $_POST['bbp_topic_id'];

		$topic    = bbp_get_topic( $topic_id );

	}



	// Topic does not exist

	if ( empty( $topic ) ) {

		bbp_add_error( 'bbp_edit_topic_not_found', __( '<strong>ERROR</strong>: The topic you want to edit was not found.', 'bbpress' ) );

		return;



	// Topic exists

	} else {



		// Check users ability to create new topic

		if ( ! bbp_is_topic_anonymous( $topic_id ) ) {



			// User cannot edit this topic

			if ( !current_user_can( 'edit_topic', $topic_id ) ) {

				bbp_add_error( 'bbp_edit_topic_permissions', __( '<strong>ERROR</strong>: You do not have permission to edit that topic.', 'bbpress' ) );

			}



			// Set topic author

			$topic_author = bbp_get_topic_author_id( $topic_id );



		// It is an anonymous post

		} else {



			// Filter anonymous data

			$anonymous_data = bbp_filter_anonymous_post_data( array(), true );

		}

	}



	// Nonce check

	if ( ! bbp_verify_nonce_request( 'bbp-edit-topic_' . $topic_id ) ) {

		bbp_add_error( 'bbp_edit_topic_nonce', __( '<strong>ERROR</strong>: Are you sure you wanted to do that?', 'bbpress' ) );

		return;

	}



	// Remove kses filters from title and content for capable users and if the nonce is verified

	if ( current_user_can( 'unfiltered_html' ) && !empty( $_POST['_bbp_unfiltered_html_topic'] ) && ( wp_create_nonce( 'bbp-unfiltered-html-topic_' . $topic_id ) === $_POST['_bbp_unfiltered_html_topic'] ) ) {

		remove_filter( 'bbp_edit_topic_pre_title',   'wp_filter_kses'      );

		remove_filter( 'bbp_edit_topic_pre_content', 'bbp_encode_bad',  10 );

		remove_filter( 'bbp_edit_topic_pre_content', 'bbp_filter_kses', 30 );

	}



	/** Topic Forum ***********************************************************/



	// Forum id was not passed

	if ( empty( $_POST['bbp_forum_id'] ) ) {

		bbp_add_error( 'bbp_topic_forum_id', __( '<strong>ERROR</strong>: Forum ID is missing.', 'bbpress' ) );



	// Forum id was passed

	} elseif ( is_numeric( $_POST['bbp_forum_id'] ) ) {

		$forum_id = (int) $_POST['bbp_forum_id'];

	}



	// Current forum this topic is in

	$current_forum_id = bbp_get_topic_forum_id( $topic_id );



	// Forum exists

	if ( !empty( $forum_id ) && ( $forum_id !== $current_forum_id ) ) {



		// Forum is a category

		if ( bbp_is_forum_category( $forum_id ) ) {

			bbp_add_error( 'bbp_edit_topic_forum_category', __( '<strong>ERROR</strong>: This forum is a category. No topics can be created in it.', 'bbpress' ) );



		// Forum is not a category

		} else {



			// Forum is closed and user cannot access

			if ( bbp_is_forum_closed( $forum_id ) && !current_user_can( 'edit_forum', $forum_id ) ) {

				bbp_add_error( 'bbp_edit_topic_forum_closed', __( '<strong>ERROR</strong>: This forum has been closed to new topics.', 'bbpress' ) );

			}



			// Forum is private and user cannot access

			if ( bbp_is_forum_private( $forum_id ) ) {

				if ( !current_user_can( 'read_private_forums' ) ) {

					bbp_add_error( 'bbp_edit_topic_forum_private', __( '<strong>ERROR</strong>: This forum is private and you do not have the capability to read or create new topics in it.', 'bbpress' ) );

				}



			// Forum is hidden and user cannot access

			} elseif ( bbp_is_forum_hidden( $forum_id ) ) {

				if ( !current_user_can( 'read_hidden_forums' ) ) {

					bbp_add_error( 'bbp_edit_topic_forum_hidden', __( '<strong>ERROR</strong>: This forum is hidden and you do not have the capability to read or create new topics in it.', 'bbpress' ) );

				}

			}

		}

	}



	/** Topic Title ***********************************************************/



	if ( !empty( $_POST['bbp_topic_title'] ) )

		$topic_title = esc_attr( strip_tags( $_POST['bbp_topic_title'] ) );



	// Filter and sanitize

	$topic_title = apply_filters( 'bbp_edit_topic_pre_title', $topic_title, $topic_id );



	// No topic title

	if ( empty( $topic_title ) )

		bbp_add_error( 'bbp_edit_topic_title', __( '<strong>ERROR</strong>: Your topic needs a title.', 'bbpress' ) );



	/** Topic Content *********************************************************/



	if ( !empty( $_POST['bbp_topic_content'] ) )

		$topic_content = $_POST['bbp_topic_content'];



	// Filter and sanitize

	$topic_content = apply_filters( 'bbp_edit_topic_pre_content', $topic_content, $topic_id );



	// No topic content

	if ( empty( $topic_content ) )

		bbp_add_error( 'bbp_edit_topic_content', __( '<strong>ERROR</strong>: Your topic cannot be empty.', 'bbpress' ) );



	/** Topic Blacklist *******************************************************/



	if ( !bbp_check_for_blacklist( $anonymous_data, $topic_author, $topic_title, $topic_content ) )

		bbp_add_error( 'bbp_topic_blacklist', __( '<strong>ERROR</strong>: Your topic cannot be edited at this time.', 'bbpress' ) );



	/** Topic Status **********************************************************/



	// Maybe put into moderation

	if ( !bbp_check_for_moderation( $anonymous_data, $topic_author, $topic_title, $topic_content ) ) {



		// Set post status to pending if public or closed

		if ( in_array( $topic->post_status, array( bbp_get_public_status_id(), bbp_get_closed_status_id() ) ) ) {

			$topic_status = bbp_get_pending_status_id();

		}



	// Check a whitelist of possible topic status ID's

	} elseif ( !empty( $_POST['bbp_topic_status'] ) && in_array( $_POST['bbp_topic_status'], array_keys( bbp_get_topic_statuses() ) ) ) {

		$topic_status = $_POST['bbp_topic_status'];



	// Use existing post_status

	} else {

		$topic_status = $topic->post_status;

	}



	/** Topic Tags ************************************************************/



	// Either replace terms

	if ( bbp_allow_topic_tags() && current_user_can( 'assign_topic_tags' ) && ! empty( $_POST['bbp_topic_tags'] ) ) {



		// Escape tag input

		$terms = esc_attr( strip_tags( $_POST['bbp_topic_tags'] ) );



		// Explode by comma

		if ( strstr( $terms, ',' ) )

			$terms = explode( ',', $terms );



		// Add topic tag ID as main key

		$terms = array( bbp_get_topic_tag_tax_id() => $terms );



	// ...or remove them.

	} elseif ( isset( $_POST['bbp_topic_tags'] ) ) {

		$terms = array( bbp_get_topic_tag_tax_id() => array() );



	// Existing terms

	} else {

		$terms = array( bbp_get_topic_tag_tax_id() => explode( ',', bbp_get_topic_tag_names( $topic_id, ',' ) ) );

	}



	/** Additional Actions (Before Save) **************************************/



	do_action( 'bbp_edit_topic_pre_extras', $topic_id );



	// Bail if errors

	if ( bbp_has_errors() )

		return;



	/** No Errors *************************************************************/



	// Add the content of the form to $topic_data as an array

	// Just in time manipulation of topic data before being edited

	$topic_data = apply_filters( 'bbp_edit_topic_pre_insert', array(

		'ID'           => $topic_id,

		'post_title'   => $topic_title,

		'post_content' => $topic_content,

		'post_status'  => $topic_status,

		'post_parent'  => $forum_id,

		'post_author'  => $topic_author,

		'post_type'    => bbp_get_topic_post_type(),

		'tax_input'    => $terms,

	) );



	// Toggle revisions to avoid duplicates

	if ( post_type_supports( bbp_get_topic_post_type(), 'revisions' ) ) {

		$revisions_removed = true;

		remove_post_type_support( bbp_get_topic_post_type(), 'revisions' );

	}



	// Insert topic

	$topic_id = wp_update_post( $topic_data );



	// Toggle revisions back on

	if ( true === $revisions_removed ) {

		$revisions_removed = false;

		add_post_type_support( bbp_get_topic_post_type(), 'revisions' );

	}



	/** No Errors *************************************************************/



	if ( !empty( $topic_id ) && !is_wp_error( $topic_id ) ) {



		// Update counts, etc...

		do_action( 'bbp_edit_topic', $topic_id, $forum_id, $anonymous_data, $topic_author , true /* Is edit */ );



		/** Revisions *********************************************************/



		// Revision Reason

		if ( !empty( $_POST['bbp_topic_edit_reason'] ) ) {

			$topic_edit_reason = esc_attr( strip_tags( $_POST['bbp_topic_edit_reason'] ) );

		}



		// Update revision log

		if ( !empty( $_POST['bbp_log_topic_edit'] ) && ( "1" === $_POST['bbp_log_topic_edit'] ) )  {

			$revision_id = wp_save_post_revision( $topic_id );

			if ( ! empty( $revision_id ) ) {

				bbp_update_topic_revision_log( array(

					'topic_id'    => $topic_id,

					'revision_id' => $revision_id,

					'author_id'   => bbp_get_current_user_id(),

					'reason'      => $topic_edit_reason

				) );

			}

		}



		/** Move Topic ********************************************************/



		// If the new forum id is not equal to the old forum id, run the

		// bbp_move_topic action and pass the topic's forum id as the

		// first arg and topic id as the second to update counts.

		if ( $forum_id !== $topic->post_parent ) {

			bbp_move_topic_handler( $topic_id, $topic->post_parent, $forum_id );

		}



		/** Stickies **********************************************************/



		if ( !empty( $_POST['bbp_stick_topic'] ) && in_array( $_POST['bbp_stick_topic'], array_keys( bbp_get_topic_types() ) ) ) {



			// What's the caps?

			if ( current_user_can( 'moderate' ) ) {



				// What's the haps?

				switch ( $_POST['bbp_stick_topic'] ) {



					// Sticky in forum

					case 'stick'   :

						bbp_stick_topic( $topic_id );

						break;



					// Sticky in all forums

					case 'super'   :

						bbp_stick_topic( $topic_id, true );

						break;



					// Normal

					case 'unstick' :

					default        :

						bbp_unstick_topic( $topic_id );

						break;

				}

			}

		}



		/** Additional Actions (After Save) ***********************************/



		do_action( 'bbp_edit_topic_post_extras', $topic_id );



		/** Redirect **********************************************************/



		// Redirect to

		$redirect_to = bbp_get_redirect_to();



		// View all?

		$view_all = bbp_get_view_all();



		// Get the topic URL

		$topic_url = bbp_get_topic_permalink( $topic_id, $redirect_to );



		// Add view all?

		if ( !empty( $view_all ) )

			$topic_url = bbp_add_view_all( $topic_url );



		// Allow to be filtered

		$topic_url = apply_filters( 'bbp_edit_topic_redirect_to', $topic_url, $view_all, $redirect_to );



		/** Successful Edit ***************************************************/



		// Redirect back to new topic

		wp_safe_redirect( $topic_url );



		// For good measure

		exit();



	/** Errors ****************************************************************/



	} else {

		$append_error = ( is_wp_error( $topic_id ) && $topic_id->get_error_message() ) ? $topic_id->get_error_message() . ' ' : '';

		bbp_add_error( 'bbp_topic_error', __( '<strong>ERROR</strong>: The following problem(s) have been found with your topic:' . $append_error . 'Please try again.', 'bbpress' ) );

	}

}



/**

 * Handle all the extra meta stuff from posting a new topic

 *

 * @param int $topic_id Optional. Topic id

 * @param int $forum_id Optional. Forum id

 * @param bool|array $anonymous_data Optional logged-out user data.

 * @param int $author_id Author id

 * @param bool $is_edit Optional. Is the post being edited? Defaults to false.

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_forum_id() To get the forum id

 * @uses bbp_get_current_user_id() To get the current user id

 * @yses bbp_get_topic_forum_id() To get the topic forum id

 * @uses update_post_meta() To update the topic metas

 * @uses set_transient() To update the flood check transient for the ip

 * @uses bbp_update_user_last_posted() To update the users last posted time

 * @uses bbp_is_subscriptions_active() To check if the subscriptions feature is

 *                                      activated or not

 * @uses bbp_is_user_subscribed() To check if the user is subscribed

 * @uses bbp_remove_user_subscription() To remove the user's subscription

 * @uses bbp_add_user_subscription() To add the user's subscription

 * @uses bbp_update_topic_forum_id() To update the topic's forum id

 * @uses bbp_update_topic_topic_id() To update the topic's topic id

 * @uses bbp_update_topic_last_reply_id() To update the last reply id topic meta

 * @uses bbp_update_topic_last_active_id() To update the topic last active id

 * @uses bbp_update_topic_last_active_time() To update the last active topic meta

 * @uses bbp_update_topic_reply_count() To update the topic reply count

 * @uses bbp_update_topic_reply_count_hidden() To udpate the topic hidden reply count

 * @uses bbp_update_topic_voice_count() To update the topic voice count

 * @uses bbp_update_topic_walker() To udpate the topic's ancestors

 */

function bbp_update_topic( $topic_id = 0, $forum_id = 0, $anonymous_data = false, $author_id = 0, $is_edit = false ) {



	// Validate the ID's passed from 'bbp_new_topic' action

	$topic_id = bbp_get_topic_id( $topic_id );

	$forum_id = bbp_get_forum_id( $forum_id );



	// Bail if there is no topic

	if ( empty( $topic_id ) )

		return;



	// Check author_id

	if ( empty( $author_id ) )

		$author_id = bbp_get_current_user_id();



	// Check forum_id

	if ( empty( $forum_id ) )

		$forum_id = bbp_get_topic_forum_id( $topic_id );



	// If anonymous post, store name, email, website and ip in post_meta.

	// It expects anonymous_data to be sanitized.

	// Check bbp_filter_anonymous_post_data() for sanitization.

	if ( !empty( $anonymous_data ) && is_array( $anonymous_data ) ) {



		// Parse arguments against default values

		$r = bbp_parse_args( $anonymous_data, array(

			'bbp_anonymous_name'    => '',

			'bbp_anonymous_email'   => '',

			'bbp_anonymous_website' => '',

		), 'update_topic' );



		// Update all anonymous metas

		foreach ( $r as $anon_key => $anon_value ) {

			update_post_meta( $topic_id, '_' . $anon_key, (string) $anon_value, false );

		}



		// Set transient for throttle check (only on new, not edit)

		if ( empty( $is_edit ) ) {

			set_transient( '_bbp_' . bbp_current_author_ip() . '_last_posted', time() );

		}



	} else {

		if ( empty( $is_edit ) && !current_user_can( 'throttle' ) ) {

			bbp_update_user_last_posted( $author_id );

		}

	}



	// Handle Subscription Checkbox

	if ( bbp_is_subscriptions_active() && !empty( $author_id ) ) {

		$subscribed = bbp_is_user_subscribed( $author_id, $topic_id );

		$subscheck  = ( !empty( $_POST['bbp_topic_subscription'] ) && ( 'bbp_subscribe' === $_POST['bbp_topic_subscription'] ) ) ? true : false;



		// Subscribed and unsubscribing

		if ( true === $subscribed && false === $subscheck ) {

			bbp_remove_user_subscription( $author_id, $topic_id );



		// Subscribing

		} elseif ( false === $subscribed && true === $subscheck ) {

			bbp_add_user_subscription( $author_id, $topic_id );

		}

	}



	// Forum topic meta

	bbp_update_topic_forum_id( $topic_id, $forum_id );

	bbp_update_topic_topic_id( $topic_id, $topic_id );



	// Update associated topic values if this is a new topic

	if ( empty( $is_edit ) ) {



		// Update poster IP if not editing

		update_post_meta( $topic_id, '_bbp_author_ip', bbp_current_author_ip(), false );



		// Last active time

		$last_active = current_time( 'mysql' );



		// Reply topic meta

		bbp_update_topic_last_reply_id      ( $topic_id, 0            );

		bbp_update_topic_last_active_id     ( $topic_id, $topic_id    );

		bbp_update_topic_last_active_time   ( $topic_id, $last_active );

		bbp_update_topic_reply_count        ( $topic_id, 0            );

		bbp_update_topic_reply_count_hidden ( $topic_id, 0            );

		bbp_update_topic_voice_count        ( $topic_id               );



		// Walk up ancestors and do the dirty work

		bbp_update_topic_walker( $topic_id, $last_active, $forum_id, 0, false );

	}

}



/**

 * Walks up the post_parent tree from the current topic_id, and updates the

 * counts of forums above it. This calls a few internal functions that all run

 * manual queries against the database to get their results. As such, this

 * function can be costly to run but is necessary to keep everything accurate.

 *

 * @since bbPress (r2800)

 * @param int $topic_id Topic id

 * @param string $last_active_time Optional. Last active time

 * @param int $forum_id Optional. Forum id

 * @param int $reply_id Optional. Reply id

 * @param bool $refresh Reset all the previous parameters? Defaults to true.

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_topic_forum_id() To get the topic forum id

 * @uses get_post_ancestors() To get the topic's ancestors

 * @uses bbp_is_forum() To check if the ancestor is a forum

 * @uses bbp_update_forum() To update the forum

 */

function bbp_update_topic_walker( $topic_id, $last_active_time = '', $forum_id = 0, $reply_id = 0, $refresh = true ) {



	// Validate topic_id

	$topic_id  = bbp_get_topic_id( $topic_id );



	// Define local variable(s)

	$active_id = 0;



	// Topic was passed

	if ( !empty( $topic_id ) ) {



		// Get the forum ID if none was passed

		if ( empty( $forum_id )  ) {

			$forum_id = bbp_get_topic_forum_id( $topic_id );

		}



		// Set the active_id based on topic_id/reply_id

		$active_id = empty( $reply_id ) ? $topic_id : $reply_id;

	}



	// Get topic ancestors

	$ancestors = array_values( array_unique( array_merge( array( $forum_id ), (array) get_post_ancestors( $topic_id ) ) ) );



	// Topic status

	$topic_status = get_post_status( $topic_id );



	// If we want a full refresh, unset any of the possibly passed variables

	if ( true === $refresh ) {

		$forum_id = $topic_id = $reply_id = $active_id = $last_active_time = 0;

		$topic_status = bbp_get_public_status_id();

	}



	// Loop through ancestors

	if ( !empty( $ancestors ) ) {

		foreach ( $ancestors as $ancestor ) {



			// If ancestor is a forum, update counts

			if ( bbp_is_forum( $ancestor ) ) {



				// Update the forum

				bbp_update_forum( array(

					'forum_id'           => $ancestor,

					'last_topic_id'      => $topic_id,

					'last_reply_id'      => $reply_id,

					'last_active_id'     => $active_id,

					'last_active_time'   => 0,

					'last_active_status' => $topic_status

				) );

			}

		}

	}

}



/**

 * Handle the moving of a topic from one forum to another. This includes walking

 * up the old and new branches and updating the counts.

 *

 * @param int $topic_id Topic id

 * @param int $old_forum_id Old forum id

 * @param int $new_forum_id New forum id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_forum_id() To get the forum id

 * @uses bbp_get_stickies() To get the old forums sticky topics

 * @uses delete_post_meta() To delete the forum sticky meta

 * @uses update_post_meta() To update the old forum sticky meta

 * @uses bbp_stick_topic() To stick the topic in the new forum

 * @uses bbp_get_reply_post_type() To get the reply post type

 * @uses bbp_get_all_child_ids() To get the public child ids

 * @uses bbp_update_reply_forum_id() To update the reply forum id

 * @uses bbp_update_topic_forum_id() To update the topic forum id

 * @uses get_post_ancestors() To get the topic's ancestors

 * @uses bbp_is_forum() To check if the ancestor is a forum

 * @uses bbp_update_forum() To update the forum

 */

function bbp_move_topic_handler( $topic_id, $old_forum_id, $new_forum_id ) {



	// Validate parameters

	$topic_id     = bbp_get_topic_id( $topic_id     );

	$old_forum_id = bbp_get_forum_id( $old_forum_id );

	$new_forum_id = bbp_get_forum_id( $new_forum_id );



	// Update topic forum's ID

	bbp_update_topic_forum_id( $topic_id, $new_forum_id );



	/** Stickies **************************************************************/



	// Get forum stickies

	$old_stickies = bbp_get_stickies( $old_forum_id );



	// Only proceed if stickies are found

	if ( !empty( $old_stickies ) ) {



		// Define local variables

		$updated_stickies = array();



		// Loop through stickies of forum and add misses to the updated array

		foreach ( (array) $old_stickies as $sticky_topic_id ) {

			if ( $topic_id !== $sticky_topic_id ) {

				$updated_stickies[] = $sticky_topic_id;

			}

		}



		// If stickies are different, update or delete them

		if ( $updated_stickies !== $old_stickies ) {



			// No more stickies so delete the meta

			if ( empty( $updated_stickies ) ) {

				delete_post_meta( $old_forum_id, '_bbp_sticky_topics' );



			// Still stickies so update the meta

			} else {

				update_post_meta( $old_forum_id, '_bbp_sticky_topics', $updated_stickies );

			}



			// Topic was sticky, so restick in new forum

			bbp_stick_topic( $topic_id );

		}

	}



	/** Topic Replies *********************************************************/



	// Get the topics replies

	$replies = bbp_get_all_child_ids( $topic_id, bbp_get_reply_post_type() );



	// Update the forum_id of all replies in the topic

	foreach ( $replies as $reply_id ) {

		bbp_update_reply_forum_id( $reply_id, $new_forum_id );

	}



	/** Old forum_id **********************************************************/



	// Get topic ancestors

	$old_forum_ancestors = array_values( array_unique( array_merge( array( $old_forum_id ), (array) get_post_ancestors( $old_forum_id ) ) ) );



	// Loop through ancestors and update them

	if ( !empty( $old_forum_ancestors ) ) {

		foreach ( $old_forum_ancestors as $ancestor ) {

			if ( bbp_is_forum( $ancestor ) ) {

				bbp_update_forum( array(

					'forum_id' => $ancestor,

				) );

			}

		}

	}



	/** New forum_id **********************************************************/



	// Make sure we're not walking twice

	if ( !in_array( $new_forum_id, $old_forum_ancestors ) ) {



		// Get topic ancestors

		$new_forum_ancestors = array_values( array_unique( array_merge( array( $new_forum_id ), (array) get_post_ancestors( $new_forum_id ) ) ) );



		// Make sure we're not walking twice

		$new_forum_ancestors = array_diff( $new_forum_ancestors, $old_forum_ancestors );



		// Loop through ancestors and update them

		if ( !empty( $new_forum_ancestors ) ) {

			foreach ( $new_forum_ancestors as $ancestor ) {

				if ( bbp_is_forum( $ancestor ) ) {

					bbp_update_forum( array(

						'forum_id' => $ancestor,

					) );

				}

			}

		}

	}

}



/**

 * Merge topic handler

 *

 * Handles the front end merge topic submission

 *

 * @since bbPress (r2756)

 *

 * @param string $action The requested action to compare this function to

 * @uses bbp_add_error() To add an error message

 * @uses bbp_get_topic() To get the topics

 * @uses bbp_verify_nonce_request() To verify the nonce and check the request

 * @uses current_user_can() To check if the current user can edit the topics

 * @uses is_wp_error() To check if the value retrieved is a {@link WP_Error}

 * @uses do_action() Calls 'bbp_merge_topic' with the destination and source

 *                    topic ids

 * @uses bbp_get_topic_subscribers() To get the source topic subscribers

 * @uses bbp_add_user_subscription() To add the user subscription

 * @uses bbp_remove_user_subscription() To remove the user subscription

 * @uses bbp_get_topic_favoriters() To get the source topic favoriters

 * @uses bbp_add_user_favorite() To add the user favorite

 * @uses bbp_remove_user_favorite() To remove the user favorite

 * @uses wp_get_post_terms() To get the source topic tags

 * @uses wp_set_post_terms() To set the topic tags

 * @uses wp_delete_object_term_relationships() To delete the topic tags

 * @uses bbp_open_topic() To open the topic

 * @uses bbp_unstick_topic() To unstick the topic

 * @uses bbp_get_reply_post_type() To get the reply post type

 * @uses get_posts() To get the replies

 * @uses wp_update_post() To update the topic

 * @uses bbp_update_reply_topic_id() To update the reply topic id

 * @uses bbp_get_topic_forum_id() To get the topic forum id

 * @uses bbp_update_reply_forum_id() To update the reply forum id

 * @uses do_action() Calls 'bbp_merged_topic_reply' with the reply id and

 *                    destination topic id

 * @uses do_action() Calls 'bbp_merged_topic' with the destination and source

 *                    topic ids and source topic's forum id

 * @uses bbp_get_topic_permalink() To get the topic permalink

 * @uses wp_safe_redirect() To redirect to the topic link

 */

function bbp_merge_topic_handler( $action = '' ) {



	// Bail if action is not bbp-merge-topic

	if ( 'bbp-merge-topic' !== $action )

		return;



	// Define local variable(s)

	$source_topic_id = $destination_topic_id = 0;

	$source_topic = $destination_topic = 0;

	$subscribers = $favoriters = $replies = array();



	/** Source Topic **********************************************************/



	// Topic id

	if ( empty( $_POST['bbp_topic_id'] ) ) {

		bbp_add_error( 'bbp_merge_topic_source_id', __( '<strong>ERROR</strong>: Topic ID not found.', 'bbpress' ) );

	} else {

		$source_topic_id = (int) $_POST['bbp_topic_id'];

	}



	// Nonce check

	if ( ! bbp_verify_nonce_request( 'bbp-merge-topic_' . $source_topic_id ) ) {

		bbp_add_error( 'bbp_merge_topic_nonce', __( '<strong>ERROR</strong>: Are you sure you wanted to do that?', 'bbpress' ) );

		return;



	// Source topic not found

	} elseif ( !$source_topic = bbp_get_topic( $source_topic_id ) ) {

		bbp_add_error( 'bbp_merge_topic_source_not_found', __( '<strong>ERROR</strong>: The topic you want to merge was not found.', 'bbpress' ) );

		return;

	}



	// Cannot edit source topic

	if ( !current_user_can( 'edit_topic', $source_topic->ID ) ) {

		bbp_add_error( 'bbp_merge_topic_source_permission', __( '<strong>ERROR</strong>: You do not have the permissions to edit the source topic.', 'bbpress' ) );

		return;

	}



	/** Destination Topic *****************************************************/



	// Topic id

	if ( empty( $_POST['bbp_destination_topic'] ) )

		bbp_add_error( 'bbp_merge_topic_destination_id', __( '<strong>ERROR</strong>: Destination topic ID not found.', 'bbpress' ) );

	else

		$destination_topic_id = (int) $_POST['bbp_destination_topic'];



	// Destination topic not found

	if ( !$destination_topic = bbp_get_topic( $destination_topic_id ) )

		bbp_add_error( 'bbp_merge_topic_destination_not_found', __( '<strong>ERROR</strong>: The topic you want to merge to was not found.', 'bbpress' ) );



	// Cannot edit destination topic

	if ( !current_user_can( 'edit_topic', $destination_topic->ID ) )

		bbp_add_error( 'bbp_merge_topic_destination_permission', __( '<strong>ERROR</strong>: You do not have the permissions to edit the destination topic.', 'bbpress' ) );



	// Bail if errors

	if ( bbp_has_errors() )

		return;



	/** No Errors *************************************************************/



	// Update counts, etc...

	do_action( 'bbp_merge_topic', $destination_topic->ID, $source_topic->ID );



	/** Date Check ************************************************************/



	// Check if the destination topic is older than the source topic

	if ( strtotime( $source_topic->post_date ) < strtotime( $destination_topic->post_date ) ) {



		// Set destination topic post_date to 1 second before source topic

		$destination_post_date = date( 'Y-m-d H:i:s', strtotime( $source_topic->post_date ) - 1 );



		// Update destination topic

		wp_update_post( array(

			'ID'            => $destination_topic_id,

			'post_date'     => $destination_post_date,

			'post_date_gmt' => get_gmt_from_date( $destination_post_date )

		) );

	}



	/** Subscriptions *********************************************************/



	// Get subscribers from source topic

	$subscribers = bbp_get_topic_subscribers( $source_topic->ID );



	// Remove the topic from everybody's subscriptions

	if ( !empty( $subscribers ) ) {



		// Loop through each user

		foreach ( (array) $subscribers as $subscriber ) {



			// Shift the subscriber if told to

			if ( !empty( $_POST['bbp_topic_subscribers'] ) && ( "1" === $_POST['bbp_topic_subscribers'] ) && bbp_is_subscriptions_active() )

				bbp_add_user_subscription( $subscriber, $destination_topic->ID );



			// Remove old subscription

			bbp_remove_user_subscription( $subscriber, $source_topic->ID );

		}

	}



	/** Favorites *************************************************************/



	// Get favoriters from source topic

	$favoriters = bbp_get_topic_favoriters( $source_topic->ID );



	// Remove the topic from everybody's favorites

	if ( !empty( $favoriters ) ) {



		// Loop through each user

		foreach ( (array) $favoriters as $favoriter ) {



			// Shift the favoriter if told to

			if ( !empty( $_POST['bbp_topic_favoriters'] ) && "1" === $_POST['bbp_topic_favoriters'] )

				bbp_add_user_favorite( $favoriter, $destination_topic->ID );



			// Remove old favorite

			bbp_remove_user_favorite( $favoriter, $source_topic->ID );

		}

	}



	/** Tags ******************************************************************/



	// Get the source topic tags

	$source_topic_tags = wp_get_post_terms( $source_topic->ID, bbp_get_topic_tag_tax_id(), array( 'fields' => 'names' ) );



	// Tags to possibly merge

	if ( !empty( $source_topic_tags ) && !is_wp_error( $source_topic_tags ) ) {



		// Shift the tags if told to

		if ( !empty( $_POST['bbp_topic_tags'] ) && ( "1" === $_POST['bbp_topic_tags'] ) )

			wp_set_post_terms( $destination_topic->ID, $source_topic_tags, bbp_get_topic_tag_tax_id(), true );



		// Delete the tags from the source topic

		wp_delete_object_term_relationships( $source_topic->ID, bbp_get_topic_tag_tax_id() );

	}



	/** Source Topic **********************************************************/



	// Status

	bbp_open_topic( $source_topic->ID );



	// Sticky

	bbp_unstick_topic( $source_topic->ID );



	// Get the replies of the source topic

	$replies = (array) get_posts( array(

		'post_parent'    => $source_topic->ID,

		'post_type'      => bbp_get_reply_post_type(),

		'posts_per_page' => -1,

		'order'          => 'ASC'

	) );



	// Prepend the source topic to its replies array for processing

	array_unshift( $replies, $source_topic );



	if ( !empty( $replies ) ) {



		/** Merge Replies *****************************************************/



		// Change the post_parent of each reply to the destination topic id

		foreach ( $replies as $reply ) {



			// Update the reply

			wp_update_post( array(

				'ID'          => $reply->ID,

				'post_title'  => sprintf( __( 'Reply To: %s', 'bbpress' ), $destination_topic->post_title ),

				'post_name'   => false,

				'post_type'   => bbp_get_reply_post_type(),

				'post_parent' => $destination_topic->ID,

				'guid'        => ''

			) );



			// Adjust reply meta values

			bbp_update_reply_topic_id( $reply->ID, $destination_topic->ID                           );

			bbp_update_reply_forum_id( $reply->ID, bbp_get_topic_forum_id( $destination_topic->ID ) );



			// Adjust reply to values

			$reply_to = bbp_get_reply_to( $reply->ID );

			if ( empty( $reply_to ) ) {

				bbp_update_reply_to( $reply->ID, $source_topic->ID );

			}



			// Do additional actions per merged reply

			do_action( 'bbp_merged_topic_reply', $reply->ID, $destination_topic->ID );

		}

	}



	/** Successful Merge ******************************************************/



	// Update topic's last meta data

	bbp_update_topic_last_reply_id   ( $destination_topic->ID );

	bbp_update_topic_last_active_id  ( $destination_topic->ID );

	bbp_update_topic_last_active_time( $destination_topic->ID );



	// Send the post parent of the source topic as it has been shifted

	// (possibly to a new forum) so we need to update the counts of the

	// old forum as well as the new one

	do_action( 'bbp_merged_topic', $destination_topic->ID, $source_topic->ID, $source_topic->post_parent );



	// Redirect back to new topic

	wp_safe_redirect( bbp_get_topic_permalink( $destination_topic->ID ) );



	// For good measure

	exit();

}



/**

 * Fix counts on topic merge

 *

 * When a topic is merged, update the counts of source and destination topic

 * and their forums.

 *

 * @since bbPress (r2756)

 *

 * @param int $destination_topic_id Destination topic id

 * @param int $source_topic_id Source topic id

 * @param int $source_topic_forum Source topic's forum id

 * @uses bbp_update_forum_topic_count() To update the forum topic counts

 * @uses bbp_update_forum_reply_count() To update the forum reply counts

 * @uses bbp_update_topic_reply_count() To update the topic reply counts

 * @uses bbp_update_topic_voice_count() To update the topic voice counts

 * @uses bbp_update_topic_reply_count_hidden() To update the topic hidden reply

 *                                              count

 * @uses do_action() Calls 'bbp_merge_topic_count' with the destination topic

 *                    id, source topic id & source topic forum id

 */

function bbp_merge_topic_count( $destination_topic_id, $source_topic_id, $source_topic_forum_id ) {



	/** Source Topic **********************************************************/



	// Forum Topic Counts

	bbp_update_forum_topic_count( $source_topic_forum_id );



	// Forum Reply Counts

	bbp_update_forum_reply_count( $source_topic_forum_id );



	/** Destination Topic *****************************************************/



	// Topic Reply Counts

	bbp_update_topic_reply_count( $destination_topic_id );



	// Topic Hidden Reply Counts

	bbp_update_topic_reply_count_hidden( $destination_topic_id );



	// Topic Voice Counts

	bbp_update_topic_voice_count( $destination_topic_id );



	do_action( 'bbp_merge_topic_count', $destination_topic_id, $source_topic_id, $source_topic_forum_id );

}



/**

 * Split topic handler

 *

 * Handles the front end split topic submission

 *

 * @since bbPress (r2756)

 *

 * @param string $action The requested action to compare this function to

 * @uses bbp_add_error() To add an error message

 * @uses bbp_get_reply() To get the reply

 * @uses bbp_get_topic() To get the topics

 * @uses bbp_verify_nonce_request() To verify the nonce and check the request

 * @uses current_user_can() To check if the current user can edit the topics

 * @uses bbp_get_topic_post_type() To get the topic post type

 * @uses is_wp_error() To check if the value retrieved is a {@link WP_Error}

 * @uses do_action() Calls 'bbp_pre_split_topic' with the from reply id, source

 *                    and destination topic ids

 * @uses bbp_get_topic_subscribers() To get the source topic subscribers

 * @uses bbp_add_user_subscription() To add the user subscription

 * @uses bbp_get_topic_favoriters() To get the source topic favoriters

 * @uses bbp_add_user_favorite() To add the user favorite

 * @uses wp_get_post_terms() To get the source topic tags

 * @uses wp_set_post_terms() To set the topic tags

 * @uses bbp_get_reply_post_type() To get the reply post type

 * @uses wpdb::prepare() To prepare our sql query

 * @uses wpdb::get_results() To execute the sql query and get results

 * @uses wp_update_post() To update the replies

 * @uses bbp_update_reply_topic_id() To update the reply topic id

 * @uses bbp_get_topic_forum_id() To get the topic forum id

 * @uses bbp_update_reply_forum_id() To update the reply forum id

 * @uses do_action() Calls 'bbp_split_topic_reply' with the reply id and

 *                    destination topic id

 * @uses bbp_update_topic_last_reply_id() To update the topic last reply id

 * @uses bbp_update_topic_last_active_time() To update the topic last active meta

 * @uses do_action() Calls 'bbp_post_split_topic' with the destination and

 *                    source topic ids and source topic's forum id

 * @uses bbp_get_topic_permalink() To get the topic permalink

 * @uses wp_safe_redirect() To redirect to the topic link

 */

function bbp_split_topic_handler( $action = '' ) {



	// Bail if action is not 'bbp-split-topic'

	if ( 'bbp-split-topic' !== $action )

		return;



	global $wpdb;



	// Prevent debug notices

	$from_reply_id = $destination_topic_id = 0;

	$destination_topic_title = '';

	$destination_topic = $from_reply = $source_topic = '';

	$split_option = false;



	/** Split Reply ***********************************************************/



	if ( empty( $_POST['bbp_reply_id'] ) )

		bbp_add_error( 'bbp_split_topic_reply_id', __( '<strong>ERROR</strong>: Reply ID to split the topic from not found!', 'bbpress' ) );

	else

		$from_reply_id = (int) $_POST['bbp_reply_id'];



	$from_reply = bbp_get_reply( $from_reply_id );



	// Reply exists

	if ( empty( $from_reply ) )

		bbp_add_error( 'bbp_split_topic_r_not_found', __( '<strong>ERROR</strong>: The reply you want to split from was not found.', 'bbpress' ) );



	/** Topic to Split ********************************************************/



	// Get the topic being split

	$source_topic = bbp_get_topic( $from_reply->post_parent );



	// No topic

	if ( empty( $source_topic ) )

		bbp_add_error( 'bbp_split_topic_source_not_found', __( '<strong>ERROR</strong>: The topic you want to split was not found.', 'bbpress' ) );



	// Nonce check failed

	if ( ! bbp_verify_nonce_request( 'bbp-split-topic_' . $source_topic->ID ) ) {

		bbp_add_error( 'bbp_split_topic_nonce', __( '<strong>ERROR</strong>: Are you sure you wanted to do that?', 'bbpress' ) );

		return;

	}



	// Use cannot edit topic

	if ( !current_user_can( 'edit_topic', $source_topic->ID ) )

		bbp_add_error( 'bbp_split_topic_source_permission', __( '<strong>ERROR</strong>: You do not have the permissions to edit the source topic.', 'bbpress' ) );



	// How to Split

	if ( !empty( $_POST['bbp_topic_split_option'] ) )

		$split_option = (string) trim( $_POST['bbp_topic_split_option'] );



	// Invalid split option

	if ( empty( $split_option ) || !in_array( $split_option, array( 'existing', 'reply' ) ) ) {

		bbp_add_error( 'bbp_split_topic_option', __( '<strong>ERROR</strong>: You need to choose a valid split option.', 'bbpress' ) );



	// Valid Split Option

	} else {



		// What kind of split

		switch ( $split_option ) {



			// Into an existing topic

			case 'existing' :



				// Get destination topic id

				if ( empty( $_POST['bbp_destination_topic'] ) )

					bbp_add_error( 'bbp_split_topic_destination_id', __( '<strong>ERROR</strong>: Destination topic ID not found!', 'bbpress' ) );

				else

					$destination_topic_id = (int) $_POST['bbp_destination_topic'];



				// Get the destination topic

				$destination_topic = bbp_get_topic( $destination_topic_id );



				// No destination topic

				if ( empty( $destination_topic ) )

					bbp_add_error( 'bbp_split_topic_destination_not_found', __( '<strong>ERROR</strong>: The topic you want to split to was not found!', 'bbpress' ) );



				// User cannot edit the destination topic

				if ( !current_user_can( 'edit_topic', $destination_topic->ID ) )

					bbp_add_error( 'bbp_split_topic_destination_permission', __( '<strong>ERROR</strong>: You do not have the permissions to edit the destination topic!', 'bbpress' ) );



				break;



			// Split at reply into a new topic

			case 'reply' :

			default :



				// User needs to be able to publish topics

				if ( current_user_can( 'publish_topics' ) ) {



					// Use the new title that was passed

					if ( !empty( $_POST['bbp_topic_split_destination_title'] ) ) {

						$destination_topic_title = esc_attr( strip_tags( $_POST['bbp_topic_split_destination_title'] ) );



					// Use the source topic title

					} else {

						$destination_topic_title = $source_topic->post_title;

					}



					// Update the topic

					$destination_topic_id = wp_update_post( array(

						'ID'          => $from_reply->ID,

						'post_title'  => $destination_topic_title,

						'post_name'   => false,

						'post_type'   => bbp_get_topic_post_type(),

						'post_parent' => $source_topic->post_parent,

						'menu_order'  => 0,

						'guid'        => ''

					) );

					$destination_topic = bbp_get_topic( $destination_topic_id );



					// Make sure the new topic knows its a topic

					bbp_update_topic_topic_id( $from_reply->ID );



					// Shouldn't happen

					if ( false === $destination_topic_id || is_wp_error( $destination_topic_id ) || empty( $destination_topic ) ) {

						bbp_add_error( 'bbp_split_topic_destination_reply', __( '<strong>ERROR</strong>: There was a problem converting the reply into the topic. Please try again.', 'bbpress' ) );

					}



				// User cannot publish posts

				} else {

					bbp_add_error( 'bbp_split_topic_destination_permission', __( '<strong>ERROR</strong>: You do not have the permissions to create new topics. The reply could not be converted into a topic.', 'bbpress' ) );

				}



				break;

		}

	}



	// Bail if there are errors

	if ( bbp_has_errors() )

		return;



	/** No Errors - Do the Spit ***********************************************/



	// Update counts, etc...

	do_action( 'bbp_pre_split_topic', $from_reply->ID, $source_topic->ID, $destination_topic->ID );



	/** Date Check ************************************************************/



	// Check if the destination topic is older than the from reply

	if ( strtotime( $from_reply->post_date ) < strtotime( $destination_topic->post_date ) ) {



		// Set destination topic post_date to 1 second before from reply

		$destination_post_date = date( 'Y-m-d H:i:s', strtotime( $from_reply->post_date ) - 1 );



		// Update destination topic

		wp_update_post( array(

			'ID'            => $destination_topic_id,

			'post_date'     => $destination_post_date,

			'post_date_gmt' => get_gmt_from_date( $destination_post_date )

		) );

	}



	/** Subscriptions *********************************************************/



	// Copy the subscribers

	if ( !empty( $_POST['bbp_topic_subscribers'] ) && "1" === $_POST['bbp_topic_subscribers'] && bbp_is_subscriptions_active() ) {



		// Get the subscribers

		$subscribers = bbp_get_topic_subscribers( $source_topic->ID );



		if ( !empty( $subscribers ) ) {



			// Add subscribers to new topic

			foreach ( (array) $subscribers as $subscriber ) {

				bbp_add_user_subscription( $subscriber, $destination_topic->ID );

			}

		}

	}



	/** Favorites *************************************************************/



	// Copy the favoriters if told to

	if ( !empty( $_POST['bbp_topic_favoriters'] ) && ( "1" === $_POST['bbp_topic_favoriters'] ) ) {



		// Get the favoriters

		$favoriters = bbp_get_topic_favoriters( $source_topic->ID );



		if ( !empty( $favoriters ) ) {



			// Add the favoriters to new topic

			foreach ( (array) $favoriters as $favoriter ) {

				bbp_add_user_favorite( $favoriter, $destination_topic->ID );

			}

		}

	}



	/** Tags ******************************************************************/



	// Copy the tags if told to

	if ( !empty( $_POST['bbp_topic_tags'] ) && ( "1" === $_POST['bbp_topic_tags'] ) ) {



		// Get the source topic tags

		$source_topic_tags = wp_get_post_terms( $source_topic->ID, bbp_get_topic_tag_tax_id(), array( 'fields' => 'names' ) );



		if ( !empty( $source_topic_tags ) ) {

			wp_set_post_terms( $destination_topic->ID, $source_topic_tags, bbp_get_topic_tag_tax_id(), true );

		}

	}



	/** Split Replies *********************************************************/



	// get_posts() is not used because it doesn't allow us to use '>='

	// comparision without a filter.

	$replies = (array) $wpdb->get_results( $wpdb->prepare( "SELECT * FROM {$wpdb->posts} WHERE {$wpdb->posts}.post_date >= %s AND {$wpdb->posts}.post_parent = %d AND {$wpdb->posts}.post_type = %s ORDER BY {$wpdb->posts}.post_date ASC", $from_reply->post_date, $source_topic->ID, bbp_get_reply_post_type() ) );



	// Make sure there are replies to loop through

	if ( !empty( $replies ) && !is_wp_error( $replies ) ) {



		// Calculate starting point for reply positions

		switch ( $split_option ) {



			// Get topic reply count for existing topic

			case 'existing' :

				$reply_position = bbp_get_topic_reply_count( $destination_topic->ID );

				break;



			// Account for new lead topic

			case 'reply'    :

				$reply_position = 1;

				break;

		}



		// Save reply ids

		$reply_ids = array();



		// Change the post_parent of each reply to the destination topic id

		foreach ( $replies as $reply ) {



			// Bump the reply position each iteration through the loop

			$reply_position++;



			// Update the reply

			wp_update_post( array(

				'ID'          => $reply->ID,

				'post_title'  => sprintf( __( 'Reply To: %s', 'bbpress' ), $destination_topic->post_title ),

				'post_name'   => false, // will be automatically generated

				'post_parent' => $destination_topic->ID,

				'menu_order'  => $reply_position,

				'guid'        => ''

			) );



			// Gather reply ids

			$reply_ids[] = $reply->ID;



			// Adjust reply meta values

			bbp_update_reply_topic_id( $reply->ID, $destination_topic->ID                           );

			bbp_update_reply_forum_id( $reply->ID, bbp_get_topic_forum_id( $destination_topic->ID ) );



			// Adjust reply to values

			$reply_to = bbp_get_reply_to( $reply->ID );



			// Not a reply to a reply that moved over

			if ( !in_array( $reply_to, $reply_ids ) ) {

				bbp_update_reply_to( $reply->ID, 0 );

			}



			// New topic from reply can't be a reply to

			if ( ( $from_reply->ID === $destination_topic->ID ) && ( $from_reply->ID === $reply_to ) ) {

				bbp_update_reply_to( $reply->ID, 0 );

			}



			// Do additional actions per split reply

			do_action( 'bbp_split_topic_reply', $reply->ID, $destination_topic->ID );

		}



		// Remove reply to from new topic

		if ( $from_reply->ID === $destination_topic->ID ) {

			delete_post_meta( $from_reply->ID, '_bbp_reply_to' );

		}



		// Set the last reply ID and freshness

		$last_reply_id = $reply->ID;

		$freshness     = $reply->post_date;



	// Set the last reply ID and freshness to the from_reply

	} else {

		$last_reply_id = $from_reply->ID;

		$freshness     = $from_reply->post_date;

	}



	// It is a new topic and we need to set some default metas to make

	// the topic display in bbp_has_topics() list

	if ( 'reply' === $split_option ) {

		bbp_update_topic_last_reply_id   ( $destination_topic->ID, $last_reply_id );

		bbp_update_topic_last_active_id  ( $destination_topic->ID, $last_reply_id );

		bbp_update_topic_last_active_time( $destination_topic->ID, $freshness     );

	}



	// Update source topic ID last active

	bbp_update_topic_last_reply_id   ( $source_topic->ID );

	bbp_update_topic_last_active_id  ( $source_topic->ID );

	bbp_update_topic_last_active_time( $source_topic->ID );



	/** Successful Split ******************************************************/



	// Update counts, etc...

	do_action( 'bbp_post_split_topic', $from_reply->ID, $source_topic->ID, $destination_topic->ID );



	// Redirect back to the topic

	wp_safe_redirect( bbp_get_topic_permalink( $destination_topic->ID ) );



	// For good measure

	exit();

}



/**

 * Fix counts on topic split

 *

 * When a topic is split, update the counts of source and destination topic

 * and their forums.

 *

 * @since bbPress (r2756)

 *

 * @param int $from_reply_id From reply id

 * @param int $source_topic_id Source topic id

 * @param int $destination_topic_id Destination topic id

 * @uses bbp_update_forum_topic_count() To update the forum topic counts

 * @uses bbp_update_forum_reply_count() To update the forum reply counts

 * @uses bbp_update_topic_reply_count() To update the topic reply counts

 * @uses bbp_update_topic_voice_count() To update the topic voice counts

 * @uses bbp_update_topic_reply_count_hidden() To update the topic hidden reply

 *                                              count

 * @uses do_action() Calls 'bbp_split_topic_count' with the from reply id,

 *                    source topic id & destination topic id

 */

function bbp_split_topic_count( $from_reply_id, $source_topic_id, $destination_topic_id ) {



	// Forum Topic Counts

	bbp_update_forum_topic_count( bbp_get_topic_forum_id( $destination_topic_id ) );



	// Forum Reply Counts

	bbp_update_forum_reply_count( bbp_get_topic_forum_id( $destination_topic_id ) );



	// Topic Reply Counts

	bbp_update_topic_reply_count( $source_topic_id      );

	bbp_update_topic_reply_count( $destination_topic_id );



	// Topic Hidden Reply Counts

	bbp_update_topic_reply_count_hidden( $source_topic_id      );

	bbp_update_topic_reply_count_hidden( $destination_topic_id );



	// Topic Voice Counts

	bbp_update_topic_voice_count( $source_topic_id      );

	bbp_update_topic_voice_count( $destination_topic_id );



	do_action( 'bbp_split_topic_count', $from_reply_id, $source_topic_id, $destination_topic_id );

}



/**

 * Handles the front end tag management (renaming, merging, destroying)

 *

 * @since bbPress (r2768)

 *

 * @param string $action The requested action to compare this function to

 * @uses bbp_verify_nonce_request() To verify the nonce and check the request

 * @uses current_user_can() To check if the current user can edit/delete tags

 * @uses bbp_add_error() To add an error message

 * @uses wp_update_term() To update the topic tag

 * @uses get_term_link() To get the topic tag url

 * @uses term_exists() To check if the topic tag already exists

 * @uses wp_insert_term() To insert a topic tag

 * @uses wp_delete_term() To delete the topic tag

 * @uses home_url() To get the blog's home page url

 * @uses do_action() Calls actions based on the actions with associated args

 * @uses is_wp_error() To check if the value retrieved is a {@link WP_Error}

 * @uses wp_safe_redirect() To redirect to the url

 */

function bbp_edit_topic_tag_handler( $action = '' ) {



	// Bail if required POST actions aren't passed

	if ( empty( $_POST['tag-id'] ) )

		return;



	// Setup possible get actions

	$possible_actions = array(

		'bbp-update-topic-tag',

		'bbp-merge-topic-tag',

		'bbp-delete-topic-tag'

	);



	// Bail if actions aren't meant for this function

	if ( !in_array( $action, $possible_actions ) )

		return;



	// Setup vars

	$tag_id = (int) $_POST['tag-id'];

	$tag    = get_term( $tag_id, bbp_get_topic_tag_tax_id() );



	// Tag does not exist

	if ( is_wp_error( $tag ) && $tag->get_error_message() ) {

		bbp_add_error( 'bbp_manage_topic_invalid_tag', sprintf( __( '<strong>ERROR</strong>: The following problem(s) have been found while getting the tag: %s', 'bbpress' ), $tag->get_error_message() ) );

		return;

	}



	// What action are we trying to perform?

	switch ( $action ) {



		// Update tag

		case 'bbp-update-topic-tag' :



			// Nonce check

			if ( ! bbp_verify_nonce_request( 'update-tag_' . $tag_id ) ) {

				bbp_add_error( 'bbp_manage_topic_tag_update_nonce', __( '<strong>ERROR</strong>: Are you sure you wanted to do that?', 'bbpress' ) );

				return;

			}



			// Can user edit topic tags?

			if ( !current_user_can( 'edit_topic_tags' ) ) {

				bbp_add_error( 'bbp_manage_topic_tag_update_permissions', __( '<strong>ERROR</strong>: You do not have the permissions to edit the topic tags.', 'bbpress' ) );

				return;

			}



			// No tag name was provided

			if ( empty( $_POST['tag-name'] ) || !$name = $_POST['tag-name'] ) {

				bbp_add_error( 'bbp_manage_topic_tag_update_name', __( '<strong>ERROR</strong>: You need to enter a tag name.', 'bbpress' ) );

				return;

			}



			// Attempt to update the tag

			$slug = !empty( $_POST['tag-slug'] ) ? $_POST['tag-slug'] : '';

			$tag  = wp_update_term( $tag_id, bbp_get_topic_tag_tax_id(), array( 'name' => $name, 'slug' => $slug ) );



			// Cannot update tag

			if ( is_wp_error( $tag ) && $tag->get_error_message() ) {

				bbp_add_error( 'bbp_manage_topic_tag_update_error', sprintf( __( '<strong>ERROR</strong>: The following problem(s) have been found while updating the tag: %s', 'bbpress' ), $tag->get_error_message() ) );

				return;

			}



			// Redirect

			$redirect = get_term_link( $tag_id, bbp_get_topic_tag_tax_id() );



			// Update counts, etc...

			do_action( 'bbp_update_topic_tag', $tag_id, $tag, $name, $slug );



			break;



		// Merge two tags

		case 'bbp-merge-topic-tag'  :



			// Nonce check

			if ( ! bbp_verify_nonce_request( 'merge-tag_' . $tag_id ) ) {

				bbp_add_error( 'bbp_manage_topic_tag_merge_nonce', __( '<strong>ERROR</strong>: Are you sure you wanted to do that?', 'bbpress' ) );

				return;

			}



			// Can user edit topic tags?

			if ( !current_user_can( 'edit_topic_tags' ) ) {

				bbp_add_error( 'bbp_manage_topic_tag_merge_permissions', __( '<strong>ERROR</strong>: You do not have the permissions to edit the topic tags.', 'bbpress' ) );

				return;

			}



			// No tag name was provided

			if ( empty( $_POST['tag-existing-name'] ) || !$name = $_POST['tag-existing-name'] ) {

				bbp_add_error( 'bbp_manage_topic_tag_merge_name', __( '<strong>ERROR</strong>: You need to enter a tag name.', 'bbpress' ) );

				return;

			}



			// If term does not exist, create it

			if ( !$tag = term_exists( $name, bbp_get_topic_tag_tax_id() ) )

				$tag = wp_insert_term( $name, bbp_get_topic_tag_tax_id() );



			// Problem inserting the new term

			if ( is_wp_error( $tag ) && $tag->get_error_message() ) {

				bbp_add_error( 'bbp_manage_topic_tag_merge_error', sprintf( __( '<strong>ERROR</strong>: The following problem(s) have been found while merging the tags: %s', 'bbpress' ), $tag->get_error_message() ) );

				return;

			}



			// Merging in to...

			$to_tag = $tag['term_id'];



			// Attempting to merge a tag into itself

			if ( $tag_id === $to_tag ) {

				bbp_add_error( 'bbp_manage_topic_tag_merge_same', __( '<strong>ERROR</strong>: The tags which are being merged can not be the same.', 'bbpress' ) );

				return;

			}



			// Delete the old term

			$tag = wp_delete_term( $tag_id, bbp_get_topic_tag_tax_id(), array( 'default' => $to_tag, 'force_default' => true ) );



			// Error merging the terms

			if ( is_wp_error( $tag ) && $tag->get_error_message() ) {

				bbp_add_error( 'bbp_manage_topic_tag_merge_error', sprintf( __( '<strong>ERROR</strong>: The following problem(s) have been found while merging the tags: %s', 'bbpress' ), $tag->get_error_message() ) );

				return;

			}



			// Redirect

			$redirect = get_term_link( (int) $to_tag, bbp_get_topic_tag_tax_id() );



			// Update counts, etc...

			do_action( 'bbp_merge_topic_tag', $tag_id, $to_tag, $tag );



			break;



		// Delete tag

		case 'bbp-delete-topic-tag' :



			// Nonce check

			if ( ! bbp_verify_nonce_request( 'delete-tag_' . $tag_id ) ) {

				bbp_add_error( 'bbp_manage_topic_tag_delete_nonce', __( '<strong>ERROR</strong>: Are you sure you wanted to do that?', 'bbpress' ) );

				return;

			}



			// Can user delete topic tags?

			if ( !current_user_can( 'delete_topic_tags' ) ) {

				bbp_add_error( 'bbp_manage_topic_tag_delete_permissions', __( '<strong>ERROR</strong>: You do not have the permissions to delete the topic tags.', 'bbpress' ) );

				return;

			}



			// Attempt to delete term

			$tag = wp_delete_term( $tag_id, bbp_get_topic_tag_tax_id() );



			// Error deleting term

			if ( is_wp_error( $tag ) && $tag->get_error_message() ) {

				bbp_add_error( 'bbp_manage_topic_tag_delete_error', sprintf( __( '<strong>ERROR</strong>: The following problem(s) have been found while deleting the tag: %s', 'bbpress' ), $tag->get_error_message() ) );

				return;

			}



			// We don't have any other place to go other than home! Or we may die because of the 404 disease

			$redirect = home_url();



			// Update counts, etc...

			do_action( 'bbp_delete_topic_tag', $tag_id, $tag );



			break;

	}



	/** Successful Moderation *************************************************/



	// Redirect back

	$redirect = ( !empty( $redirect ) && !is_wp_error( $redirect ) ) ? $redirect : home_url();

	wp_safe_redirect( $redirect );



	// For good measure

	exit();

}



/** Helpers *******************************************************************/



/**

 * Return an associative array of available topic statuses

 *

 * @since bbPress (r5059)

 *

 * @return array

 */

function bbp_get_topic_statuses() {

	return apply_filters( 'bbp_get_topic_statuses', array(

		bbp_get_public_status_id()  => _x( 'Open',    'Open the topic',        'bbpress' ),

		bbp_get_closed_status_id()  => _x( 'Closed',  'Close the topic',       'bbpress' ),

		bbp_get_spam_status_id()    => _x( 'Spam',    'Spam the topic',        'bbpress' ),

		bbp_get_trash_status_id()   => _x( 'Trash',   'Trash the topic',       'bbpress' ),

		bbp_get_pending_status_id() => _x( 'Pending', 'Mark topic as pending', 'bbpress' ),

	) );

}



/**

 * Return an associative array of topic sticky types

 *

 * @since bbPress (r5059)

 *

 * @return array

 */

function bbp_get_topic_types() {

	return apply_filters( 'bbp_get_topic_types', array(

		'unstick' => _x( 'Normal',       'Unstick a topic',         'bbpress' ),

		'stick'   => _x( 'Sticky',       'Make topic sticky',       'bbpress' ),

		'super'   => _x( 'Super Sticky', 'Make topic super sticky', 'bbpress' )

	) );

}



/** Stickies ******************************************************************/



/**

 * Return sticky topics of a forum

 *

 * @since bbPress (r2592)

 *

 * @param int $forum_id Optional. If not passed, super stickies are returned.

 * @uses bbp_get_super_stickies() To get the super stickies

 * @uses get_post_meta() To get the forum stickies

 * @uses apply_filters() Calls 'bbp_get_stickies' with the stickies and forum id

 * @return array IDs of sticky topics of a forum or super stickies

 */

function bbp_get_stickies( $forum_id = 0 ) {

	$stickies = empty( $forum_id ) ? bbp_get_super_stickies() : get_post_meta( $forum_id, '_bbp_sticky_topics', true );

	$stickies = ( empty( $stickies ) || !is_array( $stickies ) ) ? array() : $stickies;



	return apply_filters( 'bbp_get_stickies', $stickies, (int) $forum_id );

}



/**

 * Return topics stuck to front page of the forums

 *

 * @since bbPress (r2592)

 *

 * @uses get_option() To get super sticky topics

 * @uses apply_filters() Calls 'bbp_get_super_stickies' with the stickies

 * @return array IDs of super sticky topics

 */

function bbp_get_super_stickies() {

	$stickies = get_option( '_bbp_super_sticky_topics', array() );

	$stickies = ( empty( $stickies ) || !is_array( $stickies ) ) ? array() : $stickies;



	return apply_filters( 'bbp_get_super_stickies', $stickies );

}



/** Topics Actions ************************************************************/



/**

 * Handles the front end opening/closing, spamming/unspamming,

 * sticking/unsticking and trashing/untrashing/deleting of topics

 *

 * @since bbPress (r2727)

 *

 * @param string $action The requested action to compare this function to

 * @uses bbp_get_topic() To get the topic

 * @uses current_user_can() To check if the user is capable of editing or

 *                           deleting the topic

 * @uses bbp_get_topic_post_type() To get the topic post type

 * @uses check_ajax_referer() To verify the nonce and check the referer

 * @uses bbp_is_topic_open() To check if the topic is open

 * @uses bbp_close_topic() To close the topic

 * @uses bbp_open_topic() To open the topic

 * @uses bbp_is_topic_sticky() To check if the topic is a sticky

 * @uses bbp_unstick_topic() To unstick the topic

 * @uses bbp_stick_topic() To stick the topic

 * @uses bbp_is_topic_spam() To check if the topic is marked as spam

 * @uses bbp_spam_topic() To make the topic as spam

 * @uses bbp_unspam_topic() To unmark the topic as spam

 * @uses wp_trash_post() To trash the topic

 * @uses wp_untrash_post() To untrash the topic

 * @uses wp_delete_post() To delete the topic

 * @uses do_action() Calls 'bbp_toggle_topic_handler' with success, post data

 *                    and action

 * @uses bbp_get_forum_permalink() To get the forum link

 * @uses bbp_get_topic_permalink() To get the topic link

 * @uses add_query_arg() To add args to the url

 * @uses wp_safe_redirect() To redirect to the topic

 * @uses bbPress::errors:add() To log the error messages

 */

function bbp_toggle_topic_handler( $action = '' ) {



	// Bail if required GET actions aren't passed

	if ( empty( $_GET['topic_id'] ) )

		return;



	// Setup possible get actions

	$possible_actions = array(

		'bbp_toggle_topic_close',

		'bbp_toggle_topic_stick',

		'bbp_toggle_topic_spam',

		'bbp_toggle_topic_trash'

	);



	// Bail if actions aren't meant for this function

	if ( !in_array( $action, $possible_actions ) )

		return;



	$failure   = '';                         // Empty failure string

	$view_all  = false;                      // Assume not viewing all

	$topic_id  = (int) $_GET['topic_id'];    // What's the topic id?

	$success   = false;                      // Flag

	$post_data = array( 'ID' => $topic_id ); // Prelim array

	$redirect  = '';                         // Empty redirect URL



	// Make sure topic exists

	$topic = bbp_get_topic( $topic_id );

	if ( empty( $topic ) )

		return;



	// What is the user doing here?

	if ( !current_user_can( 'edit_topic', $topic->ID ) || ( 'bbp_toggle_topic_trash' === $action && !current_user_can( 'delete_topic', $topic->ID ) ) ) {

		bbp_add_error( 'bbp_toggle_topic_permission', __( '<strong>ERROR:</strong> You do not have the permission to do that.', 'bbpress' ) );

		return;

	}



	// What action are we trying to perform?

	switch ( $action ) {



		// Toggle open/close

		case 'bbp_toggle_topic_close' :

			check_ajax_referer( 'close-topic_' . $topic_id );



			$is_open = bbp_is_topic_open( $topic_id );

			$success = true === $is_open ? bbp_close_topic( $topic_id ) : bbp_open_topic( $topic_id );

			$failure = true === $is_open ? __( '<strong>ERROR</strong>: There was a problem closing the topic.', 'bbpress' ) : __( '<strong>ERROR</strong>: There was a problem opening the topic.', 'bbpress' );



			break;



		// Toggle sticky/super-sticky/unstick

		case 'bbp_toggle_topic_stick' :

			check_ajax_referer( 'stick-topic_' . $topic_id );



			$is_sticky = bbp_is_topic_sticky( $topic_id );

			$is_super  = false === $is_sticky && !empty( $_GET['super'] ) && ( "1" === $_GET['super'] ) ? true : false;

			$success   = true  === $is_sticky ? bbp_unstick_topic( $topic_id ) : bbp_stick_topic( $topic_id, $is_super );

			$failure   = true  === $is_sticky ? __( '<strong>ERROR</strong>: There was a problem unsticking the topic.', 'bbpress' ) : __( '<strong>ERROR</strong>: There was a problem sticking the topic.', 'bbpress' );



			break;



		// Toggle spam

		case 'bbp_toggle_topic_spam' :

			check_ajax_referer( 'spam-topic_' . $topic_id );



			$is_spam  = bbp_is_topic_spam( $topic_id );

			$success  = true === $is_spam ? bbp_unspam_topic( $topic_id ) : bbp_spam_topic( $topic_id );

			$failure  = true === $is_spam ? __( '<strong>ERROR</strong>: There was a problem unmarking the topic as spam.', 'bbpress' ) : __( '<strong>ERROR</strong>: There was a problem marking the topic as spam.', 'bbpress' );

			$view_all = !$is_spam;



			break;



		// Toggle trash

		case 'bbp_toggle_topic_trash' :



			$sub_action = !empty( $_GET['sub_action'] ) && in_array( $_GET['sub_action'], array( 'trash', 'untrash', 'delete' ) ) ? $_GET['sub_action'] : false;



			if ( empty( $sub_action ) )

				break;



			switch ( $sub_action ) {

				case 'trash':

					check_ajax_referer( 'trash-' . bbp_get_topic_post_type() . '_' . $topic_id );



					$view_all = true;

					$success  = wp_trash_post( $topic_id );

					$failure  = __( '<strong>ERROR</strong>: There was a problem trashing the topic.', 'bbpress' );



					break;



				case 'untrash':

					check_ajax_referer( 'untrash-' . bbp_get_topic_post_type() . '_' . $topic_id );



					$success = wp_untrash_post( $topic_id );

					$failure = __( '<strong>ERROR</strong>: There was a problem untrashing the topic.', 'bbpress' );



					break;



				case 'delete':

					check_ajax_referer( 'delete-' . bbp_get_topic_post_type() . '_' . $topic_id );



					$success = wp_delete_post( $topic_id );

					$failure = __( '<strong>ERROR</strong>: There was a problem deleting the topic.', 'bbpress' );



					break;

			}



			break;

	}



	// Do additional topic toggle actions

	do_action( 'bbp_toggle_topic_handler', $success, $post_data, $action );



	// No errors

	if ( false !== $success && !is_wp_error( $success ) ) {



		// Redirect back to the topic's forum

		if ( isset( $sub_action ) && ( 'delete' === $sub_action ) ) {

			$redirect = bbp_get_forum_permalink( $success->post_parent );



		// Redirect back to the topic

		} else {



			// Get the redirect detination

			$permalink = bbp_get_topic_permalink( $topic_id );

			$redirect  = bbp_add_view_all( $permalink, $view_all );

		}



		wp_safe_redirect( $redirect );



		// For good measure

		exit();



	// Handle errors

	} else {

		bbp_add_error( 'bbp_toggle_topic', $failure );

	}

}



/** Favorites & Subscriptions *************************************************/



/**

 * Remove a deleted topic from all users' favorites

 *

 * @since bbPress (r2652)

 *

 * @param int $topic_id Get the topic id to remove

 * @uses bbp_get_topic_id To get the topic id

 * @uses bbp_get_topic_favoriters() To get the topic's favoriters

 * @uses bbp_remove_user_favorite() To remove the topic from user's favorites

 */

function bbp_remove_topic_from_all_favorites( $topic_id = 0 ) {

	$topic_id = bbp_get_topic_id( $topic_id );



	// Bail if no topic

	if ( empty( $topic_id ) )

		return;



	// Get users

	$users = (array) bbp_get_topic_favoriters( $topic_id );



	// Users exist

	if ( !empty( $users ) ) {



		// Loop through users

		foreach ( $users as $user ) {



			// Remove each user

			bbp_remove_user_favorite( $user, $topic_id );

		}

	}

}



/**

 * Remove a deleted topic from all users' subscriptions

 *

 * @since bbPress (r2652)

 *

 * @param int $topic_id Get the topic id to remove

 * @uses bbp_is_subscriptions_active() To check if the subscriptions are active

 * @uses bbp_get_topic_id To get the topic id

 * @uses bbp_get_topic_subscribers() To get the topic subscribers

 * @uses bbp_remove_user_subscription() To remove the user subscription

 */

function bbp_remove_topic_from_all_subscriptions( $topic_id = 0 ) {



	// Subscriptions are not active

	if ( !bbp_is_subscriptions_active() )

		return;



	$topic_id = bbp_get_topic_id( $topic_id );



	// Bail if no topic

	if ( empty( $topic_id ) )

		return;



	// Get users

	$users = (array) bbp_get_topic_subscribers( $topic_id );



	// Users exist

	if ( !empty( $users ) ) {



		// Loop through users

		foreach ( $users as $user ) {



			// Remove each user

			bbp_remove_user_subscription( $user, $topic_id );

		}

	}

}



/** Count Bumpers *************************************************************/



/**

 * Bump the total reply count of a topic

 *

 * @since bbPress (r3825)

 *

 * @param int $topic_id Optional. Forum id.

 * @param int $difference Optional. Default 1

 * @param bool $update_ancestors Optional. Default true

 * @uses bbp_get_topic_id() To get the topic id

 * @uses update_post_meta() To update the topic's reply count meta

 * @uses apply_filters() Calls 'bbp_bump_topic_reply_count' with the reply

 *                        count, topic id, and difference

 * @return int Forum reply count

 */

function bbp_bump_topic_reply_count( $topic_id = 0, $difference = 1 ) {



	// Get counts

	$topic_id    = bbp_get_topic_id( $topic_id );

	$reply_count = bbp_get_topic_reply_count( $topic_id, true );

	$new_count   = (int) $reply_count + (int) $difference;



	// Update this topic id's reply count

	update_post_meta( $topic_id, '_bbp_reply_count', (int) $new_count );



	return (int) apply_filters( 'bbp_bump_topic_reply_count', (int) $new_count, $topic_id, (int) $difference );

}



/**

 * Bump the total hidden reply count of a topic

 *

 * @since bbPress (r3825)

 *

 * @param int $topic_id Optional. Forum id.

 * @param int $difference Optional. Default 1

 * @uses bbp_get_topic_id() To get the topic id

 * @uses update_post_meta() To update the topic's reply count meta

 * @uses apply_filters() Calls 'bbp_bump_topic_reply_count_hidden' with the

 *                        reply count, topic id, and difference

 * @return int Forum hidden reply count

 */

function bbp_bump_topic_reply_count_hidden( $topic_id = 0, $difference = 1 ) {



	// Get counts

	$topic_id    = bbp_get_topic_id( $topic_id );

	$reply_count = bbp_get_topic_reply_count_hidden( $topic_id, true );

	$new_count   = (int) $reply_count + (int) $difference;



	// Update this topic id's hidder reply count

	update_post_meta( $topic_id, '_bbp_reply_count_hidden', (int) $new_count );



	return (int) apply_filters( 'bbp_bump_topic_reply_count_hidden', (int) $new_count, $topic_id, (int) $difference );

}



/** Topic Updaters ************************************************************/



/**

 * Update the topic's forum id

 *

 * @since bbPress (r2855)

 *

 * @param int $topic_id Optional. Topic id to update

 * @param int $forum_id Optional. Forum id

 * @uses bbp_is_reply() TO check if the passed topic id is a reply

 * @uses bbp_get_reply_topic_id() To get the reply topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses get_post_field() To get the post parent of the topic id

 * @uses bbp_get_forum_id() To get the forum id

 * @uses update_post_meta() To update the topic forum id meta

 * @uses apply_filters() Calls 'bbp_update_topic_forum_id' with the forum id

 *                        and topic id

 * @return int Forum id

 */

function bbp_update_topic_forum_id( $topic_id = 0, $forum_id = 0 ) {



	// If it's a reply, then get the parent (topic id)

	if ( bbp_is_reply( $topic_id ) ) {

		$topic_id = bbp_get_reply_topic_id( $topic_id );

	} else {

		$topic_id = bbp_get_topic_id( $topic_id );

	}



	if ( empty( $forum_id ) ) {

		$forum_id = get_post_field( 'post_parent', $topic_id );

	}



	update_post_meta( $topic_id, '_bbp_forum_id', (int) $forum_id );



	return apply_filters( 'bbp_update_topic_forum_id', (int) $forum_id, $topic_id );

}



/**

 * Update the topic's topic id

 *

 * @since bbPress (r2954)

 *

 * @param int $topic_id Optional. Topic id to update

 * @uses bbp_get_topic_id() To get the topic id

 * @uses update_post_meta() To update the topic's topic id meta

 * @uses apply_filters() Calls 'bbp_update_topic_topic_id' with the topic id

 * @return int Topic id

 */

function bbp_update_topic_topic_id( $topic_id = 0 ) {

	$topic_id = bbp_get_topic_id( $topic_id );



	update_post_meta( $topic_id, '_bbp_topic_id', (int) $topic_id );



	return apply_filters( 'bbp_update_topic_topic_id', (int) $topic_id );

}



/**

 * Adjust the total reply count of a topic

 *

 * @since bbPress (r2467)

 *

 * @param int $topic_id Optional. Topic id to update

 * @param int $reply_count Optional. Set the reply count manually.

 * @uses bbp_is_reply() To check if the passed topic id is a reply

 * @uses bbp_get_reply_topic_id() To get the reply topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_reply_post_type() To get the reply post type

 * @uses bbp_get_public_child_count() To get the reply count

 * @uses update_post_meta() To update the topic reply count meta

 * @uses apply_filters() Calls 'bbp_update_topic_reply_count' with the reply

 *                        count and topic id

 * @return int Topic reply count

 */

function bbp_update_topic_reply_count( $topic_id = 0, $reply_count = 0 ) {



	// If it's a reply, then get the parent (topic id)

	if ( bbp_is_reply( $topic_id ) ) {

		$topic_id = bbp_get_reply_topic_id( $topic_id );

	} else {

		$topic_id = bbp_get_topic_id( $topic_id );

	}



	// Get replies of topic if not passed

	if ( empty( $reply_count ) ) {

		$reply_count = bbp_get_public_child_count( $topic_id, bbp_get_reply_post_type() );

	}



	update_post_meta( $topic_id, '_bbp_reply_count', (int) $reply_count );



	return apply_filters( 'bbp_update_topic_reply_count', (int) $reply_count, $topic_id );

}



/**

 * Adjust the total hidden reply count of a topic (hidden includes trashed and spammed replies)

 *

 * @since bbPress (r2740)

 *

 * @param int $topic_id Optional. Topic id to update

 * @param int $reply_count Optional. Set the reply count manually

 * @uses bbp_is_reply() To check if the passed topic id is a reply

 * @uses bbp_get_reply_topic_id() To get the reply topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_reply_post_type() To get the reply post type

 * @uses wpdb::prepare() To prepare our sql query

 * @uses wpdb::get_var() To execute our query and get the var back

 * @uses update_post_meta() To update the topic hidden reply count meta

 * @uses apply_filters() Calls 'bbp_update_topic_reply_count_hidden' with the

 *                        hidden reply count and topic id

 * @return int Topic hidden reply count

 */

function bbp_update_topic_reply_count_hidden( $topic_id = 0, $reply_count = 0 ) {

	global $wpdb;



	// If it's a reply, then get the parent (topic id)

	if ( bbp_is_reply( $topic_id ) ) {

		$topic_id = bbp_get_reply_topic_id( $topic_id );

	} else {

		$topic_id = bbp_get_topic_id( $topic_id );

	}



	// Get replies of topic

	if ( empty( $reply_count ) ) {

		$post_status = "'" . implode( "','", array( bbp_get_trash_status_id(), bbp_get_spam_status_id() ) ) . "'";

		$reply_count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(ID) FROM {$wpdb->posts} WHERE post_parent = %d AND post_status IN ( {$post_status} ) AND post_type = '%s';", $topic_id, bbp_get_reply_post_type() ) );

	}



	update_post_meta( $topic_id, '_bbp_reply_count_hidden', (int) $reply_count );



	return apply_filters( 'bbp_update_topic_reply_count_hidden', (int) $reply_count, $topic_id );

}



/**

 * Update the topic with the last active post ID

 *

 * @since bbPress (r2888)

 *

 * @param int $topic_id Optional. Topic id to update

 * @param int $active_id Optional. active id

 * @uses bbp_is_reply() To check if the passed topic id is a reply

 * @uses bbp_get_reply_topic_id() To get the reply topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_reply_post_type() To get the reply post type

 * @uses bbp_get_public_child_last_id() To get the last public reply id

 * @uses bbp_get_active_id() To get the active id

 * @uses update_post_meta() To update the topic last active id meta

 * @uses apply_filters() Calls 'bbp_update_topic_last_active_id' with the active

 *                        id and topic id

 * @return int Active id

 */

function bbp_update_topic_last_active_id( $topic_id = 0, $active_id = 0 ) {



	// If it's a reply, then get the parent (topic id)

	if ( bbp_is_reply( $topic_id ) ) {

		$topic_id = bbp_get_reply_topic_id( $topic_id );

	} else {

		$topic_id = bbp_get_topic_id( $topic_id );

	}



	if ( empty( $active_id ) ) {

		$active_id = bbp_get_public_child_last_id( $topic_id, bbp_get_reply_post_type() );

	}



	// Adjust last_id's based on last_reply post_type

	if ( empty( $active_id ) || !bbp_is_reply( $active_id ) ) {

		$active_id = $topic_id;

	}



	// Update only if published

	if ( bbp_get_public_status_id() === get_post_status( $active_id ) ) {

		update_post_meta( $topic_id, '_bbp_last_active_id', (int) $active_id );

	}



	return apply_filters( 'bbp_update_topic_last_active_id', (int) $active_id, $topic_id );

}



/**

 * Update the topics last active date/time (aka freshness)

 *

 * @since bbPress (r2680)

 *

 * @param int $topic_id Optional. Topic id

 * @param string $new_time Optional. New time in mysql format

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_reply_topic_id() To get the reply topic id

 * @uses current_time() To get the current time

 * @uses update_post_meta() To update the topic last active meta

 * @return bool True on success, false on failure

 */

function bbp_update_topic_last_active_time( $topic_id = 0, $new_time = '' ) {



	// If it's a reply, then get the parent (topic id)

	if ( bbp_is_reply( $topic_id ) ) {

		$topic_id = bbp_get_reply_topic_id( $topic_id );

	} else {

		$topic_id = bbp_get_topic_id( $topic_id );

	}



	// Check time and use current if empty

	if ( empty( $new_time ) ) {

		$new_time = get_post_field( 'post_date', bbp_get_public_child_last_id( $topic_id, bbp_get_reply_post_type() ) );

	}



	// Update only if published

	if ( !empty( $new_time ) ) {

		update_post_meta( $topic_id, '_bbp_last_active_time', $new_time );

	}



	return apply_filters( 'bbp_update_topic_last_active_time', $new_time, $topic_id );

}



/**

 * Update the topic with the most recent reply ID

 *

 * @since bbPress (r2625)

 *

 * @param int $topic_id Optional. Topic id to update

 * @param int $reply_id Optional. Reply id

 * @uses bbp_is_reply() To check if the passed topic id is a reply

 * @uses bbp_get_reply_id() To get the reply id

 * @uses bbp_get_reply_topic_id() To get the reply topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_reply_post_type() To get the reply post type

 * @uses bbp_get_public_child_last_id() To get the last public reply id

 * @uses update_post_meta() To update the topic last reply id meta

 * @uses apply_filters() Calls 'bbp_update_topic_last_reply_id' with the reply

 *                        id and topic id

 * @return int Reply id

 */

function bbp_update_topic_last_reply_id( $topic_id = 0, $reply_id = 0 ) {



	// If it's a reply, then get the parent (topic id)

	if ( empty( $reply_id ) && bbp_is_reply( $topic_id ) ) {

		$reply_id = bbp_get_reply_id( $topic_id );

		$topic_id = bbp_get_reply_topic_id( $reply_id );

	} else {

		$reply_id = bbp_get_reply_id( $reply_id );

		$topic_id = bbp_get_topic_id( $topic_id );

	}



	if ( empty( $reply_id ) ) {

		$reply_id = bbp_get_public_child_last_id( $topic_id, bbp_get_reply_post_type() );

	}



	// Adjust last_id's based on last_reply post_type

	if ( empty( $reply_id ) || !bbp_is_reply( $reply_id ) ) {

		$reply_id = 0;

	}



	// Update if reply is published

	if ( bbp_is_reply_published( $reply_id ) ) {

		update_post_meta( $topic_id, '_bbp_last_reply_id', (int) $reply_id );

	}



	return apply_filters( 'bbp_update_topic_last_reply_id', (int) $reply_id, $topic_id );

}



/**

 * Adjust the total voice count of a topic

 *

 * @since bbPress (r2567)

 *

 * @param int $topic_id Optional. Topic id to update

 * @uses bbp_is_reply() To check if the passed topic id is a reply

 * @uses bbp_get_reply_topic_id() To get the reply topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_reply_topic_id() To get the reply topic id

 * @uses bbp_get_reply_post_type() To get the reply post type

 * @uses bbp_get_topic_post_type() To get the topic post type

 * @uses wpdb::prepare() To prepare our sql query

 * @uses wpdb::get_col() To execute our query and get the column back

 * @uses update_post_meta() To update the topic voice count meta

 * @uses apply_filters() Calls 'bbp_update_topic_voice_count' with the voice

 *                        count and topic id

 * @return int Voice count

 */

function bbp_update_topic_voice_count( $topic_id = 0 ) {

	global $wpdb;



	// If it's a reply, then get the parent (topic id)

	if ( bbp_is_reply( $topic_id ) ) {

		$topic_id = bbp_get_reply_topic_id( $topic_id );

	} elseif ( bbp_is_topic( $topic_id ) ) {

		$topic_id = bbp_get_topic_id( $topic_id );

	} else {

		return;

	}



	// Query the DB to get voices in this topic

	$voices = $wpdb->get_col( $wpdb->prepare( "SELECT COUNT( DISTINCT post_author ) FROM {$wpdb->posts} WHERE ( post_parent = %d AND post_status = '%s' AND post_type = '%s' ) OR ( ID = %d AND post_type = '%s' );", $topic_id, bbp_get_public_status_id(), bbp_get_reply_post_type(), $topic_id, bbp_get_topic_post_type() ) );



	// If there's an error, make sure we have at least have 1 voice

	$voices = ( empty( $voices ) || is_wp_error( $voices ) ) ? 1 : $voices[0];



	// Update the voice count for this topic id

	update_post_meta( $topic_id, '_bbp_voice_count', (int) $voices );



	return apply_filters( 'bbp_update_topic_voice_count', (int) $voices, $topic_id );

}



/**

 * Adjust the total anonymous reply count of a topic

 *

 * @since bbPress (r2567)

 *

 * @param int $topic_id Optional. Topic id to update

 * @uses bbp_is_reply() To check if the passed topic id is a reply

 * @uses bbp_get_reply_topic_id() To get the reply topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_reply_topic_id() To get the reply topic id

 * @uses bbp_get_reply_post_type() To get the reply post type

 * @uses bbp_get_topic_post_type() To get the topic post type

 * @uses wpdb::prepare() To prepare our sql query

 * @uses wpdb::get_col() To execute our query and get the column back

 * @uses update_post_meta() To update the topic anonymous reply count meta

 * @uses apply_filters() Calls 'bbp_update_topic_anonymous_reply_count' with the

 *                        anonymous reply count and topic id

 * @return int Anonymous reply count

 */

function bbp_update_topic_anonymous_reply_count( $topic_id = 0 ) {

	global $wpdb;



	// If it's a reply, then get the parent (topic id)

	if ( bbp_is_reply( $topic_id ) ) {

		$topic_id = bbp_get_reply_topic_id( $topic_id );

	} elseif ( bbp_is_topic( $topic_id ) ) {

		$topic_id = bbp_get_topic_id( $topic_id );

	} else {

		return;

	}



	$anonymous_replies = (int) $wpdb->get_var( $wpdb->prepare( "SELECT COUNT( ID ) FROM {$wpdb->posts} WHERE ( post_parent = %d AND post_status = '%s' AND post_type = '%s' AND post_author = 0 ) OR ( ID = %d AND post_type = '%s' AND post_author = 0 );", $topic_id, bbp_get_public_status_id(), bbp_get_reply_post_type(), $topic_id, bbp_get_topic_post_type() ) );



	update_post_meta( $topic_id, '_bbp_anonymous_reply_count', (int) $anonymous_replies );



	return apply_filters( 'bbp_update_topic_anonymous_reply_count', (int) $anonymous_replies, $topic_id );

}



/**

 * Update the revision log of the topic

 *

 * @since bbPress (r2782)

 *

 * @param mixed $args Supports these args:

 *  - topic_id: Topic id

 *  - author_id: Author id

 *  - reason: Reason for editing

 *  - revision_id: Revision id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_format_revision_reason() To format the reason

 * @uses bbp_get_topic_raw_revision_log() To get the raw topic revision log

 * @uses update_post_meta() To update the topic revision log meta

 * @return mixed False on failure, true on success

 */

function bbp_update_topic_revision_log( $args = '' ) {



	// Parse arguments against default values

	$r = bbp_parse_args( $args, array(

		'reason'      => '',

		'topic_id'    => 0,

		'author_id'   => 0,

		'revision_id' => 0

	), 'update_topic_revision_log' );



	// Populate the variables

	$r['reason']      = bbp_format_revision_reason( $r['reason'] );

	$r['topic_id']    = bbp_get_topic_id( $r['topic_id'] );

	$r['author_id']   = bbp_get_user_id ( $r['author_id'], false, true );

	$r['revision_id'] = (int) $r['revision_id'];



	// Get the logs and append the new one to those

	$revision_log                      = bbp_get_topic_raw_revision_log( $r['topic_id'] );

	$revision_log[ $r['revision_id'] ] = array( 'author' => $r['author_id'], 'reason' => $r['reason'] );



	// Finally, update

	return update_post_meta( $r['topic_id'], '_bbp_revision_log', $revision_log );

}



/** Topic Actions *************************************************************/



/**

 * Closes a topic

 *

 * @since bbPress (r2740)

 *

 * @param int $topic_id Topic id

 * @uses bbp_get_topic() To get the topic

 * @uses do_action() Calls 'bbp_close_topic' with the topic id

 * @uses add_post_meta() To add the previous status to a meta

 * @uses wp_update_post() To update the topic with the new status

 * @uses do_action() Calls 'bbp_opened_topic' with the topic id

 * @return mixed False or {@link WP_Error} on failure, topic id on success

 */

function bbp_close_topic( $topic_id = 0 ) {



	// Get topic

	$topic = bbp_get_topic( $topic_id );

	if ( empty( $topic ) )

		return $topic;



	// Bail if already closed

	if ( bbp_get_closed_status_id() === $topic->post_status )

		return false;



	// Execute pre close code

	do_action( 'bbp_close_topic', $topic_id );



	// Add pre close status

	add_post_meta( $topic_id, '_bbp_status', $topic->post_status );



	// Set closed status

	$topic->post_status = bbp_get_closed_status_id();



	// No revisions

	remove_action( 'pre_post_update', 'wp_save_post_revision' );



	// Update topic

	$topic_id = wp_update_post( $topic );



	// Execute post close code

	do_action( 'bbp_closed_topic', $topic_id );



	// Return topic_id

	return $topic_id;

}



/**

 * Opens a topic

 *

 * @since bbPress (r2740)

 *

 * @param int $topic_id Topic id

 * @uses bbp_get_topic() To get the topic

 * @uses do_action() Calls 'bbp_open_topic' with the topic id

 * @uses get_post_meta() To get the previous status

 * @uses delete_post_meta() To delete the previous status meta

 * @uses wp_update_post() To update the topic with the new status

 * @uses do_action() Calls 'bbp_opened_topic' with the topic id

 * @return mixed False or {@link WP_Error} on failure, topic id on success

 */

function bbp_open_topic( $topic_id = 0 ) {



	// Get topic

	$topic = bbp_get_topic( $topic_id );

	if ( empty( $topic ) )

		return $topic;



	// Bail if already open

	if ( bbp_get_closed_status_id() !== $topic->post_status )

		return false;



	// Execute pre open code

	do_action( 'bbp_open_topic', $topic_id );



	// Get previous status

	$topic_status       = get_post_meta( $topic_id, '_bbp_status', true );



	// Set previous status

	$topic->post_status = $topic_status;



	// Remove old status meta

	delete_post_meta( $topic_id, '_bbp_status' );



	// No revisions

	remove_action( 'pre_post_update', 'wp_save_post_revision' );



	// Update topic

	$topic_id = wp_update_post( $topic );



	// Execute post open code

	do_action( 'bbp_opened_topic', $topic_id );



	// Return topic_id

	return $topic_id;

}



/**

 * Marks a topic as spam

 *

 * @since bbPress (r2740)

 *

 * @param int $topic_id Topic id

 * @uses bbp_get_topic() To get the topic

 * @uses do_action() Calls 'bbp_spam_topic' with the topic id

 * @uses add_post_meta() To add the previous status to a meta

 * @uses wp_update_post() To update the topic with the new status

 * @uses do_action() Calls 'bbp_spammed_topic' with the topic id

 * @return mixed False or {@link WP_Error} on failure, topic id on success

 */

function bbp_spam_topic( $topic_id = 0 ) {



	// Get the topic

	$topic = bbp_get_topic( $topic_id );

	if ( empty( $topic ) )

		return $topic;



	// Bail if topic is spam

	if ( bbp_get_spam_status_id() === $topic->post_status )

		return false;



	// Execute pre spam code

	do_action( 'bbp_spam_topic', $topic_id );



	/** Trash Replies *********************************************************/



	// Topic is being spammed, so its replies are trashed

	$replies = new WP_Query( array(

		'suppress_filters' => true,

		'post_type'        => bbp_get_reply_post_type(),

		'post_status'      => bbp_get_public_status_id(),

		'post_parent'      => $topic_id,

		'posts_per_page'   => -1,

		'nopaging'         => true,

		'fields'           => 'id=>parent'

	) );



	if ( !empty( $replies->posts ) ) {



		// Prevent debug notices

		$pre_spammed_replies = array();



		// Loop through replies, trash them, and add them to array

		foreach ( $replies->posts as $reply ) {

			wp_trash_post( $reply->ID );

			$pre_spammed_replies[] = $reply->ID;

		}



		// Set a post_meta entry of the replies that were trashed by this action.

		// This is so we can possibly untrash them, without untrashing replies

		// that were purposefully trashed before.

		update_post_meta( $topic_id, '_bbp_pre_spammed_replies', $pre_spammed_replies );



		// Reset the $post global

		wp_reset_postdata();

	}



	// Cleanup

	unset( $replies );



	/** Topic Tags ************************************************************/



	// Add the original post status as post meta for future restoration

	add_post_meta( $topic_id, '_bbp_spam_meta_status', $topic->post_status );



	// Get topic tags

	$terms = get_the_terms( $topic_id, bbp_get_topic_tag_tax_id() );



	// Define local variable(s)

	$term_names = array();



	// Topic has tags

	if ( !empty( $terms ) ) {



		// Loop through and collect term names

		foreach ( $terms as $term ) {

			$term_names[] = $term->name;

		}



		// Topic terms have slugs

		if ( !empty( $term_names ) ) {



			// Add the original post status as post meta for future restoration

			add_post_meta( $topic_id, '_bbp_spam_topic_tags', $term_names );



			// Empty the topic of its tags

			$topic->tax_input = array( bbp_get_topic_tag_tax_id() => '' );

		}

	}



	// Set post status to spam

	$topic->post_status = bbp_get_spam_status_id();



	// No revisions

	remove_action( 'pre_post_update', 'wp_save_post_revision' );



	// Update the topic

	$topic_id = wp_update_post( $topic );



	// Execute post spam code

	do_action( 'bbp_spammed_topic', $topic_id );



	// Return topic_id

	return $topic_id;

}



/**

 * Unspams a topic

 *

 * @since bbPress (r2740)

 *

 * @param int $topic_id Topic id

 * @uses bbp_get_topic() To get the topic

 * @uses do_action() Calls 'bbp_unspam_topic' with the topic id

 * @uses get_post_meta() To get the previous status

 * @uses delete_post_meta() To delete the previous status meta

 * @uses wp_update_post() To update the topic with the new status

 * @uses do_action() Calls 'bbp_unspammed_topic' with the topic id

 * @return mixed False or {@link WP_Error} on failure, topic id on success

 */

function bbp_unspam_topic( $topic_id = 0 ) {



	// Get the topic

	$topic = bbp_get_topic( $topic_id );

	if ( empty( $topic ) )

		return $topic;



	// Bail if already not spam

	if ( bbp_get_spam_status_id() !== $topic->post_status )

		return false;



	// Execute pre unspam code

	do_action( 'bbp_unspam_topic', $topic_id );



	/** Untrash Replies *******************************************************/



	// Get the replies that were not previously trashed

	$pre_spammed_replies = get_post_meta( $topic_id, '_bbp_pre_spammed_replies', true );



	// There are replies to untrash

	if ( !empty( $pre_spammed_replies ) ) {



		// Maybe reverse the trashed replies array

		if ( is_array( $pre_spammed_replies ) )

			$pre_spammed_replies = array_reverse( $pre_spammed_replies );



		// Loop through replies

		foreach ( (array) $pre_spammed_replies as $reply ) {

			wp_untrash_post( $reply );

		}

	}



	/** Topic Tags ************************************************************/



	// Get pre-spam topic tags

	$terms = get_post_meta( $topic_id, '_bbp_spam_topic_tags', true );



	// Topic had tags before it was spammed

	if ( !empty( $terms ) ) {



		// Set the tax_input of the topic

		$topic->tax_input = array( bbp_get_topic_tag_tax_id() => $terms );



		// Delete pre-spam topic tag meta

		delete_post_meta( $topic_id, '_bbp_spam_topic_tags' );

	}



	/** Topic Status **********************************************************/



	// Get pre spam status

	$topic_status = get_post_meta( $topic_id, '_bbp_spam_meta_status', true );



	// If no previous status, default to publish

	if ( empty( $topic_status ) ) {

		$topic_status = bbp_get_public_status_id();

	}



	// Set post status to pre spam

	$topic->post_status = $topic_status;



	// Delete pre spam meta

	delete_post_meta( $topic_id, '_bbp_spam_meta_status' );



	// No revisions

	remove_action( 'pre_post_update', 'wp_save_post_revision' );



	// Update the topic

	$topic_id = wp_update_post( $topic );



	// Execute post unspam code

	do_action( 'bbp_unspammed_topic', $topic_id );



	// Return topic_id

	return $topic_id;

}



/**

 * Sticks a topic to a forum or front

 *

 * @since bbPress (r2754)

 *

 * @param int $topic_id Optional. Topic id

 * @param int $super Should we make the topic a super sticky?

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_unstick_topic() To unstick the topic

 * @uses bbp_get_topic_forum_id() To get the topic forum id

 * @uses bbp_get_stickies() To get the stickies

 * @uses do_action() 'bbp_stick_topic' with topic id and bool super

 * @uses update_option() To update the super stickies option

 * @uses update_post_meta() To update the forum stickies meta

 * @uses do_action() Calls 'bbp_sticked_topic' with the topic id, bool super

 *                    and success

 * @return bool True on success, false on failure

 */

function bbp_stick_topic( $topic_id = 0, $super = false ) {

	$topic_id = bbp_get_topic_id( $topic_id );



	// Bail if a topic is not a topic (prevents revisions as stickies)

	if ( ! bbp_is_topic( $topic_id ) )

		return false;



	// We may have a super sticky to which we want to convert into a normal

	// sticky and vice versa; unstick the topic first to avoid any possible error.

	bbp_unstick_topic( $topic_id );



	$forum_id = empty( $super ) ? bbp_get_topic_forum_id( $topic_id ) : 0;

	$stickies = bbp_get_stickies( $forum_id );



	do_action( 'bbp_stick_topic', $topic_id, $super );



	if ( !is_array( $stickies ) ) {

		$stickies   = array( $topic_id );

	} else {

		$stickies[] = $topic_id;

	}



	// Pull out duplicates and empties

	$stickies = array_unique( array_filter( $stickies ) );



	// Unset incorrectly stuck revisions

	foreach ( (array) $stickies as $key => $id ) {

		if ( ! bbp_is_topic( $id ) ) {

			unset( $stickies[$key] );

		}

	}



	// Reset keys

	$stickies = array_values( $stickies );

	$success  = !empty( $super ) ? update_option( '_bbp_super_sticky_topics', $stickies ) : update_post_meta( $forum_id, '_bbp_sticky_topics', $stickies );



	do_action( 'bbp_sticked_topic', $topic_id, $super, $success );



	return (bool) $success;

}



/**

 * Unsticks a topic both from front and it's forum

 *

 * @since bbPress (r2754)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_is_topic_super_sticky() To check if the topic is a super sticky

 * @uses bbp_get_topic_forum_id() To get the topic forum id

 * @uses bbp_get_stickies() To get the forum stickies

 * @uses do_action() Calls 'bbp_unstick_topic' with the topic id

 * @uses delete_option() To delete the super stickies option

 * @uses update_option() To update the super stickies option

 * @uses delete_post_meta() To delete the forum stickies meta

 * @uses update_post_meta() To update the forum stickies meta

 * @uses do_action() Calls 'bbp_unsticked_topic' with the topic id and success

 * @return bool Always true.

 */

function bbp_unstick_topic( $topic_id = 0 ) {

	$topic_id = bbp_get_topic_id( $topic_id );

	$super    = bbp_is_topic_super_sticky( $topic_id );

	$forum_id = empty( $super ) ? bbp_get_topic_forum_id( $topic_id ) : 0;

	$stickies = bbp_get_stickies( $forum_id );

	$offset   = array_search( $topic_id, $stickies );



	do_action( 'bbp_unstick_topic', $topic_id );



	if ( empty( $stickies ) ) {

		$success = true;

	} elseif ( !in_array( $topic_id, $stickies ) ) {

		$success = true;

	} elseif ( false === $offset ) {

		$success = true;

	} else {

		array_splice( $stickies, $offset, 1 );

		if ( empty( $stickies ) ) {

			$success = !empty( $super ) ? delete_option( '_bbp_super_sticky_topics'            ) : delete_post_meta( $forum_id, '_bbp_sticky_topics'            );

		} else {

			$success = !empty( $super ) ? update_option( '_bbp_super_sticky_topics', $stickies ) : update_post_meta( $forum_id, '_bbp_sticky_topics', $stickies );

		}

	}



	do_action( 'bbp_unsticked_topic', $topic_id, $success );



	return (bool) $success;

}



/** Before Delete/Trash/Untrash ***********************************************/



/**

 * Called before deleting a topic.

 *

 * This function is supplemental to the actual topic deletion which is

 * handled by WordPress core API functions. It is used to clean up after

 * a topic that is being deleted.

 *

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_is_topic() To check if the passed id is a topic

 * @uses do_action() Calls 'bbp_delete_topic' with the topic id

 * @uses bbp_has_replies() To check if the topic has replies

 * @uses bbp_replies() To loop through the replies

 * @uses bbp_the_reply() To set a reply as the current reply in the loop

 * @uses bbp_get_reply_id() To get the reply id

 * @uses wp_delete_post() To delete the reply

 */

function bbp_delete_topic( $topic_id = 0 ) {



	// Validate topic ID

	$topic_id = bbp_get_topic_id( $topic_id );



	if ( empty( $topic_id ) || !bbp_is_topic( $topic_id ) )

		return false;



	do_action( 'bbp_delete_topic', $topic_id );



	// Topic is being permanently deleted, so its replies gotta go too

	// Note that we get all post statuses here

	$replies = new WP_Query( array(

		'suppress_filters' => true,

		'post_type'        => bbp_get_reply_post_type(),

		'post_status'      => array_keys( get_post_stati() ),

		'post_parent'      => $topic_id,

		'posts_per_page'   => -1,

		'nopaging'         => true,

		'fields'           => 'id=>parent'

	) );



	// Loop through and delete child replies

	if ( ! empty( $replies->posts ) ) {

		foreach ( $replies->posts as $reply ) {

			wp_delete_post( $reply->ID, true );

		}



		// Reset the $post global

		wp_reset_postdata();

	}



	// Cleanup

	unset( $replies );

}



/**

 * Called before trashing a topic

 *

 * This function is supplemental to the actual topic being trashed which is

 * handled by WordPress core API functions. It is used to clean up after

 * a topic that is being trashed.

 *

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_is_topic() To check if the passed id is a topic

 * @uses do_action() Calls 'bbp_trash_topic' with the topic id

 * @uses wp_trash_post() To trash the reply

 * @uses update_post_meta() To save a list of just trashed replies for future use

 */

function bbp_trash_topic( $topic_id = 0 ) {



	// Validate topic ID

	$topic_id = bbp_get_topic_id( $topic_id );



	if ( empty( $topic_id ) || !bbp_is_topic( $topic_id ) )

		return false;



	do_action( 'bbp_trash_topic', $topic_id );



	// Topic is being trashed, so its replies are trashed too

	$replies = new WP_Query( array(

		'suppress_filters' => true,

		'post_type'        => bbp_get_reply_post_type(),

		'post_status'      => bbp_get_public_status_id(),

		'post_parent'      => $topic_id,

		'posts_per_page'   => -1,

		'nopaging'         => true,

		'fields'           => 'id=>parent'

	) );



	if ( !empty( $replies->posts ) ) {



		// Prevent debug notices

		$pre_trashed_replies = array();



		// Loop through replies, trash them, and add them to array

		foreach ( $replies->posts as $reply ) {

			wp_trash_post( $reply->ID );

			$pre_trashed_replies[] = $reply->ID;

		}



		// Set a post_meta entry of the replies that were trashed by this action.

		// This is so we can possibly untrash them, without untrashing replies

		// that were purposefully trashed before.

		update_post_meta( $topic_id, '_bbp_pre_trashed_replies', $pre_trashed_replies );



		// Reset the $post global

		wp_reset_postdata();

	}



	// Cleanup

	unset( $replies );

}



/**

 * Called before untrashing a topic

 *

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_is_topic() To check if the passed id is a topic

 * @uses do_action() Calls 'bbp_untrash_topic' with the topic id

 * @uses get_post_meta() To get the list of replies which were trashed with the

 *                        topic

 * @uses wp_untrash_post() To untrash the reply

 */

function bbp_untrash_topic( $topic_id = 0 ) {

	$topic_id = bbp_get_topic_id( $topic_id );



	if ( empty( $topic_id ) || !bbp_is_topic( $topic_id ) )

		return false;



	do_action( 'bbp_untrash_topic', $topic_id );



	// Get the replies that were not previously trashed

	$pre_trashed_replies = get_post_meta( $topic_id, '_bbp_pre_trashed_replies', true );



	// There are replies to untrash

	if ( !empty( $pre_trashed_replies ) ) {



		// Maybe reverse the trashed replies array

		if ( is_array( $pre_trashed_replies ) )

			$pre_trashed_replies = array_reverse( $pre_trashed_replies );



		// Loop through replies

		foreach ( (array) $pre_trashed_replies as $reply ) {

			wp_untrash_post( $reply );

		}

	}

}



/** After Delete/Trash/Untrash ************************************************/



/**

 * Called after deleting a topic

 *

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_is_topic() To check if the passed id is a topic

 * @uses do_action() Calls 'bbp_deleted_topic' with the topic id

 */

function bbp_deleted_topic( $topic_id = 0 ) {

	$topic_id = bbp_get_topic_id( $topic_id );



	if ( empty( $topic_id ) || !bbp_is_topic( $topic_id ) )

		return false;



	do_action( 'bbp_deleted_topic', $topic_id );

}



/**

 * Called after trashing a topic

 *

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_is_topic() To check if the passed id is a topic

 * @uses do_action() Calls 'bbp_trashed_topic' with the topic id

 */

function bbp_trashed_topic( $topic_id = 0 ) {

	$topic_id = bbp_get_topic_id( $topic_id );



	if ( empty( $topic_id ) || !bbp_is_topic( $topic_id ) )

		return false;



	do_action( 'bbp_trashed_topic', $topic_id );

}



/**

 * Called after untrashing a topic

 *

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_is_topic() To check if the passed id is a topic

 * @uses do_action() Calls 'bbp_untrashed_topic' with the topic id

 */

function bbp_untrashed_topic( $topic_id = 0 ) {

	$topic_id = bbp_get_topic_id( $topic_id );



	if ( empty( $topic_id ) || !bbp_is_topic( $topic_id ) )

		return false;



	do_action( 'bbp_untrashed_topic', $topic_id );

}



/** Settings ******************************************************************/



/**

 * Return the topics per page setting

 *

 * @since bbPress (r3540)

 *

 * @param int $default Default replies per page (15)

 * @uses get_option() To get the setting

 * @uses apply_filters() To allow the return value to be manipulated

 * @return int

 */

function bbp_get_topics_per_page( $default = 15 ) {



	// Get database option and cast as integer

	$retval = get_option( '_bbp_topics_per_page', $default );



	// If return val is empty, set it to default

	if ( empty( $retval ) )

		$retval = $default;



	// Filter and return

	return (int) apply_filters( 'bbp_get_topics_per_page', $retval, $default );

}



/**

 * Return the topics per RSS page setting

 *

 * @since bbPress (r3540)

 *

 * @param int $default Default replies per page (25)

 * @uses get_option() To get the setting

 * @uses apply_filters() To allow the return value to be manipulated

 * @return int

 */

function bbp_get_topics_per_rss_page( $default = 25 ) {



	// Get database option and cast as integer

	$retval = get_option( '_bbp_topics_per_rss_page', $default );



	// If return val is empty, set it to default

	if ( empty( $retval ) )

		$retval = $default;



	// Filter and return

	return (int) apply_filters( 'bbp_get_topics_per_rss_page', $retval, $default );

}



/** Topic Tags ****************************************************************/



/**

 * Get topic tags for a specific topic ID

 *

 * @since bbPress (r4165)

 *

 * @param int $topic_id

 * @param string $sep

 * @return string

 */

function bbp_get_topic_tag_names( $topic_id = 0, $sep = ', ' ) {

	$topic_id   = bbp_get_topic_id( $topic_id );

	$topic_tags = array_filter( (array) get_the_terms( $topic_id, bbp_get_topic_tag_tax_id() ) );

	$terms      = array();

	foreach ( $topic_tags as $term ) {

		$terms[] = $term->name;

	}

	$terms = !empty( $terms ) ? implode( $sep, $terms ) : '';



	return apply_filters( 'bbp_get_topic_tags', $terms, $topic_id );

}



/** Autoembed *****************************************************************/



/**

 * Check if autoembeds are enabled and hook them in if so

 *

 * @since bbPress (r3752)

 * @global WP_Embed $wp_embed

 */

function bbp_topic_content_autoembed() {

	global $wp_embed;



	if ( bbp_use_autoembed() && is_a( $wp_embed, 'WP_Embed' ) ) {

		add_filter( 'bbp_get_topic_content', array( $wp_embed, 'autoembed' ), 2 );

	}

}



/** Feeds *********************************************************************/



/**

 * Output an RSS2 feed of topics, based on the query passed.

 *

 * @since bbPress (r3171)

 *

 * @uses bbp_version()

 * @uses bbp_is_single_topic()

 * @uses bbp_user_can_view_forum()

 * @uses bbp_get_topic_forum_id()

 * @uses bbp_show_load_topic()

 * @uses bbp_topic_permalink()

 * @uses bbp_topic_title()

 * @uses bbp_get_topic_reply_count()

 * @uses bbp_topic_content()

 * @uses bbp_has_topics()

 * @uses bbp_topics()

 * @uses bbp_the_topic()

 * @uses get_wp_title_rss()

 * @uses get_option()

 * @uses bloginfo_rss

 * @uses self_link()

 * @uses the_author()

 * @uses get_post_time()

 * @uses rss_enclosure()

 * @uses do_action()

 * @uses apply_filters()

 *

 * @param array $topics_query

 */

function bbp_display_topics_feed_rss2( $topics_query = array() ) {



	// User cannot access this forum

	if ( bbp_is_single_forum() && !bbp_user_can_view_forum( array( 'forum_id' => bbp_get_forum_id() ) ) )

		return;



	// Display the feed

	header( 'Content-Type: ' . feed_content_type( 'rss-http' ) . '; charset=' . get_option( 'blog_charset' ), true );

	header( 'Status: 200 OK' );

	echo '<?xml version="1.0" encoding="' . get_option( 'blog_charset' ) . '"?' . '>'; ?>



	<rss version="2.0"

		xmlns:content="http://purl.org/rss/1.0/modules/content/"

		xmlns:wfw="http://wellformedweb.org/CommentAPI/"

		xmlns:dc="http://purl.org/dc/elements/1.1/"

		xmlns:atom="http://www.w3.org/2005/Atom"



		<?php do_action( 'bbp_feed' ); ?>

	>



	<channel>



		<title><?php bloginfo_rss( 'name' ); ?> &#187; <?php _e( 'All Topics', 'bbpress' ); ?></title>

		<atom:link href="<?php self_link(); ?>" rel="self" type="application/rss+xml" />

		<link><?php self_link(); ?></link>

		<description><?php //?></description>

		<pubDate><?php echo mysql2date( 'D, d M Y H:i:s O', current_time( 'mysql' ), false ); ?></pubDate>

		<generator>http://bbpress.org/?v=<?php bbp_version(); ?></generator>

		<language><?php bloginfo_rss( 'language' ); ?></language>



		<?php do_action( 'bbp_feed_head' ); ?>



		<?php if ( bbp_has_topics( $topics_query ) ) : ?>



			<?php while ( bbp_topics() ) : bbp_the_topic(); ?>



				<item>

					<guid><?php bbp_topic_permalink(); ?></guid>

					<title><![CDATA[<?php bbp_topic_title(); ?>]]></title>

					<link><?php bbp_topic_permalink(); ?></link>

					<pubDate><?php echo mysql2date('D, d M Y H:i:s +0000', get_post_meta( bbp_get_topic_id(), '_bbp_last_active_time', true ) ); ?></pubDate>

					<dc:creator><?php the_author() ?></dc:creator>



					<?php if ( !post_password_required() ) : ?>



					<description>

						<![CDATA[

						<p><?php printf( esc_html__( 'Replies: %s', 'bbpress' ), bbp_get_topic_reply_count() ); ?></p>

						<?php bbp_topic_content(); ?>

						]]>

					</description>



					<?php rss_enclosure(); ?>



					<?php endif; ?>



					<?php do_action( 'bbp_feed_item' ); ?>



				</item>



				<?php endwhile; ?>

			<?php endif; ?>



		<?php do_action( 'bbp_feed_footer' ); ?>



	</channel>

	</rss>



<?php

	exit();

}



/** Permissions ***************************************************************/



/**

 * Redirect if unathorized user is attempting to edit a topic

 *

 * @since bbPress (r3605)

 *

 * @uses bbp_is_topic_edit()

 * @uses current_user_can()

 * @uses bbp_get_topic_id()

 * @uses wp_safe_redirect()

 * @uses bbp_get_topic_permalink()

 */

function bbp_check_topic_edit() {



	// Bail if not editing a topic

	if ( !bbp_is_topic_edit() )

		return;



	// User cannot edit topic, so redirect back to topic

	if ( !current_user_can( 'edit_topic', bbp_get_topic_id() ) ) {

		wp_safe_redirect( bbp_get_topic_permalink() );

		exit();

	}

}



/**

 * Redirect if unathorized user is attempting to edit a topic tag

 *

 * @since bbPress (r3605)

 *

 * @uses bbp_is_topic_tag_edit()

 * @uses current_user_can()

 * @uses bbp_get_topic_tag_id()

 * @uses wp_safe_redirect()

 * @uses bbp_get_topic_tag_link()

 */

function bbp_check_topic_tag_edit() {



	// Bail if not editing a topic tag

	if ( !bbp_is_topic_tag_edit() )

		return;



	// Bail if current user cannot edit topic tags

	if ( !current_user_can( 'edit_topic_tags', bbp_get_topic_tag_id() ) ) {

		wp_safe_redirect( bbp_get_topic_tag_link() );

		exit();

	}

}