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

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<?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 …

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