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

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<?php



/**

 * bbPress Topic Template Tags

 *

 * @package bbPress

 * @subpackage TemplateTags

 */



// Exit if accessed directly

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



/** Post Type *****************************************************************/



/**

 * Output the unique id of the custom post type for topics

 *

 * @since bbPress (r2857)

 *

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

 */

function bbp_topic_post_type() {

	echo bbp_get_topic_post_type();

}

	/**

	 * Return the unique id of the custom post type for topics

	 *

	 * @since bbPress (r2857)

	 *

	 * @uses apply_filters() Calls 'bbp_get_topic_post_type' with the topic

	 *                        post type id

	 * @return string The unique topic post type id

	 */

	function bbp_get_topic_post_type() {

		return apply_filters( 'bbp_get_topic_post_type', bbpress()->topic_post_type );

	}



/**

 * Return array of labels used by the topic post type

 *

 * @since bbPress (r5129)

 *

 * @return array

 */

function bbp_get_topic_post_type_labels() {

	return apply_filters( 'bbp_get_topic_post_type_labels', array(

		'name'               => __( 'Topics',                   'bbpress' ),

		'menu_name'          => __( 'Topics',                   'bbpress' ),

		'singular_name'      => __( 'Topic',                    'bbpress' ),

		'all_items'          => __( 'All Topics',               'bbpress' ),

		'add_new'            => __( 'New Topic',                'bbpress' ),

		'add_new_item'       => __( 'Create New Topic',         'bbpress' ),

		'edit'               => __( 'Edit',                     'bbpress' ),

		'edit_item'          => __( 'Edit Topic',               'bbpress' ),

		'new_item'           => __( 'New Topic',                'bbpress' ),

		'view'               => __( 'View Topic',               'bbpress' ),

		'view_item'          => __( 'View Topic',               'bbpress' ),

		'search_items'       => __( 'Search Topics',            'bbpress' ),

		'not_found'          => __( 'No topics found',          'bbpress' ),

		'not_found_in_trash' => __( 'No topics found in Trash', 'bbpress' ),

		'parent_item_colon'  => __( 'Forum:',                   'bbpress' )

	) );

}



/**

 * Return array of topic post type rewrite settings

 *

 * @since bbPress (r5129)

 *

 * @return array

 */

function bbp_get_topic_post_type_rewrite() {

	return apply_filters( 'bbp_get_topic_post_type_rewrite', array(

		'slug'       => bbp_get_topic_slug(),

		'with_front' => false

	) );

}



/**

 * Return array of features the topic post type supports

 *

 * @since bbPress (r5129)

 *

 * @return array

 */

function bbp_get_topic_post_type_supports() {

	return apply_filters( 'bbp_get_topic_post_type_supports', array(

		'title',

		'editor',

		'revisions'

	) );

}



/**

 * The plugin version of bbPress comes with two topic display options:

 * - Traditional: Topics are included in the reply loop (default)

 * - New Style: Topics appear as "lead" posts, ahead of replies

 *

 * @since bbPress (r2954)

 * @param $show_lead Optional. Default false

 * @return bool Yes if the topic appears as a lead, otherwise false

 */

function bbp_show_lead_topic( $show_lead = false ) {



	// Never separate the lead topic in feeds

	if ( is_feed() )

		return false;



	return (bool) apply_filters( 'bbp_show_lead_topic', (bool) $show_lead );

}



/** Topic Loop ****************************************************************/



/**

 * The main topic loop. WordPress makes this easy for us

 *

 * @since bbPress (r2485)

 *

 * @param mixed $args All the arguments supported by {@link WP_Query}

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

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

 * @uses WP_Query To make query and get the topics

 * @uses is_page() To check if it's a page

 * @uses bbp_is_single_forum() To check if it's a forum

 * @uses bbp_get_forum_id() To get the forum id

 * @uses bbp_get_paged() To get the current page value

 * @uses bbp_get_super_stickies() To get the super stickies

 * @uses bbp_get_stickies() To get the forum stickies

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

 * @uses WP_Rewrite::using_permalinks() To check if the blog is using permalinks

 * @uses get_permalink() To get the permalink

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

 * @uses apply_filters() Calls 'bbp_topics_pagination' with the pagination args

 * @uses paginate_links() To paginate the links

 * @uses apply_filters() Calls 'bbp_has_topics' with

 *                        bbPres::topic_query::have_posts()

 *                        and bbPres::topic_query

 * @return object Multidimensional array of topic information

 */

function bbp_has_topics( $args = '' ) {

	global $wp_rewrite;



	/** Defaults **************************************************************/



	// Other defaults

	$default_topic_search  = !empty( $_REQUEST['ts'] ) ? $_REQUEST['ts'] : false;

	$default_show_stickies = (bool) ( bbp_is_single_forum() || bbp_is_topic_archive() ) && ( false === $default_topic_search );

	$default_post_parent   = bbp_is_single_forum() ? bbp_get_forum_id() : 'any';



	// Default argument array

	$default = array(

		'post_type'      => bbp_get_topic_post_type(), // Narrow query down to bbPress topics

		'post_parent'    => $default_post_parent,      // Forum ID

		'meta_key'       => '_bbp_last_active_time',   // Make sure topic has some last activity time

		'orderby'        => 'meta_value',              // 'meta_value', 'author', 'date', 'title', 'modified', 'parent', rand',

		'order'          => 'DESC',                    // 'ASC', 'DESC'

		'posts_per_page' => bbp_get_topics_per_page(), // Topics per page

		'paged'          => bbp_get_paged(),           // Page Number

		's'              => $default_topic_search,     // Topic Search

		'show_stickies'  => $default_show_stickies,    // Ignore sticky topics?

		'max_num_pages'  => false,                     // Maximum number of pages to show

	);



	// What are the default allowed statuses (based on user caps)

	if ( bbp_get_view_all() ) {



		// Default view=all statuses

		$post_statuses = array(

			bbp_get_public_status_id(),

			bbp_get_closed_status_id(),

			bbp_get_spam_status_id(),

			bbp_get_trash_status_id()

		);



		// Add support for private status

		if ( current_user_can( 'read_private_topics' ) ) {

			$post_statuses[] = bbp_get_private_status_id();

		}



		// Join post statuses together

		$default['post_status'] = implode( ',', $post_statuses );



	// Lean on the 'perm' query var value of 'readable' to provide statuses

	} else {

		$default['perm'] = 'readable';

	}



	// Maybe query for topic tags

	if ( bbp_is_topic_tag() ) {

		$default['term']     = bbp_get_topic_tag_slug();

		$default['taxonomy'] = bbp_get_topic_tag_tax_id();

	}



	/** Setup *****************************************************************/



	// Parse arguments against default values

	$r = bbp_parse_args( $args, $default, 'has_topics' );



	// Get bbPress

	$bbp = bbpress();



	// Call the query

	$bbp->topic_query = new WP_Query( $r );



	// Set post_parent back to 0 if originally set to 'any'

	if ( 'any' === $r['post_parent'] )

		$r['post_parent'] = 0;



	// Limited the number of pages shown

	if ( !empty( $r['max_num_pages'] ) )

		$bbp->topic_query->max_num_pages = $r['max_num_pages'];



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



	// Put sticky posts at the top of the posts array

	if ( !empty( $r['show_stickies'] ) && $r['paged'] <= 1 ) {



		// Get super stickies and stickies in this forum

		$stickies = bbp_get_super_stickies();



		// Get stickies for current forum

		if ( !empty( $r['post_parent'] ) ) {

			$stickies = array_merge( $stickies, bbp_get_stickies( $r['post_parent'] ) );

		}



		// Remove any duplicate stickies

		$stickies = array_unique( $stickies );



		// We have stickies

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



			// Start the offset at -1 so first sticky is at correct 0 offset

			$sticky_offset = -1;



			// Loop over topics and relocate stickies to the front.

			foreach ( $stickies as $sticky_index => $sticky_ID ) {



				// Get the post offset from the posts array

				$post_offsets = wp_filter_object_list( $bbp->topic_query->posts, array( 'ID' => $sticky_ID ), 'OR', 'ID' );



				// Continue if no post offsets

				if ( empty( $post_offsets ) ) {

					continue;

				}



				// Loop over posts in current query and splice them into position

				foreach ( array_keys( $post_offsets ) as $post_offset ) {

					$sticky_offset++;



					$sticky = $bbp->topic_query->posts[$post_offset];



					// Remove sticky from current position

					array_splice( $bbp->topic_query->posts, $post_offset, 1 );



					// Move to front, after other stickies

					array_splice( $bbp->topic_query->posts, $sticky_offset, 0, array( $sticky ) );



					// Cleanup

					unset( $stickies[$sticky_index] );

					unset( $sticky );

				}



				// Cleanup

				unset( $post_offsets );

			}



			// Cleanup

			unset( $sticky_offset );



			// If any posts have been excluded specifically, Ignore those that are sticky.

			if ( !empty( $stickies ) && !empty( $r['post__not_in'] ) ) {

				$stickies = array_diff( $stickies, $r['post__not_in'] );

			}



			// Fetch sticky posts that weren't in the query results

			if ( !empty( $stickies ) ) {



				// Query to use in get_posts to get sticky posts

				$sticky_query = array(

					'post_type'   => bbp_get_topic_post_type(),

					'post_parent' => 'any',

					'meta_key'    => '_bbp_last_active_time',

					'orderby'     => 'meta_value',

					'order'       => 'DESC',

					'include'     => $stickies

				);



				// Cleanup

				unset( $stickies );



				// Conditionally exclude private/hidden forum ID's

				$exclude_forum_ids = bbp_exclude_forum_ids( 'array' );

				if ( ! empty( $exclude_forum_ids ) ) {

					$sticky_query['post_parent__not_in'] = $exclude_forum_ids;

				}



				// What are the default allowed statuses (based on user caps)

				if ( bbp_get_view_all() ) {

					$sticky_query['post_status'] = $r['post_status'];



				// Lean on the 'perm' query var value of 'readable' to provide statuses

				} else {

					$sticky_query['post_status'] = $r['perm'];

				}



				// Get all stickies

				$sticky_posts = get_posts( $sticky_query );

				if ( !empty( $sticky_posts ) ) {



					// Get a count of the visible stickies

					$sticky_count = count( $sticky_posts );



					// Merge the stickies topics with the query topics .

					$bbp->topic_query->posts       = array_merge( $sticky_posts, $bbp->topic_query->posts );



					// Adjust loop and counts for new sticky positions

					$bbp->topic_query->found_posts = (int) $bbp->topic_query->found_posts + (int) $sticky_count;

					$bbp->topic_query->post_count  = (int) $bbp->topic_query->post_count  + (int) $sticky_count;



					// Cleanup

					unset( $sticky_posts );

				}

			}

		}

	}



	// If no limit to posts per page, set it to the current post_count

	if ( -1 === $r['posts_per_page'] )

		$r['posts_per_page'] = $bbp->topic_query->post_count;



	// Add pagination values to query object

	$bbp->topic_query->posts_per_page = $r['posts_per_page'];

	$bbp->topic_query->paged          = $r['paged'];



	// Only add pagination if query returned results

	if ( ( (int) $bbp->topic_query->post_count || (int) $bbp->topic_query->found_posts ) && (int) $bbp->topic_query->posts_per_page ) {



		// Limit the number of topics shown based on maximum allowed pages

		if ( ( !empty( $r['max_num_pages'] ) ) && $bbp->topic_query->found_posts > $bbp->topic_query->max_num_pages * $bbp->topic_query->post_count )

			$bbp->topic_query->found_posts = $bbp->topic_query->max_num_pages * $bbp->topic_query->post_count;



		// If pretty permalinks are enabled, make our pagination pretty

		if ( $wp_rewrite->using_permalinks() ) {



			// User's topics

			if ( bbp_is_single_user_topics() ) {

				$base = bbp_get_user_topics_created_url( bbp_get_displayed_user_id() );



			// User's favorites

			} elseif ( bbp_is_favorites() ) {

				$base = bbp_get_favorites_permalink( bbp_get_displayed_user_id() );



			// User's subscriptions

			} elseif ( bbp_is_subscriptions() ) {

				$base = bbp_get_subscriptions_permalink( bbp_get_displayed_user_id() );



			// Root profile page

			} elseif ( bbp_is_single_user() ) {

				$base = bbp_get_user_profile_url( bbp_get_displayed_user_id() );



			// View

			} elseif ( bbp_is_single_view() ) {

				$base = bbp_get_view_url();



			// Topic tag

			} elseif ( bbp_is_topic_tag() ) {

				$base = bbp_get_topic_tag_link();



			// Page or single post

			} elseif ( is_page() || is_single() ) {

				$base = get_permalink();



			// Forum archive

			} elseif ( bbp_is_forum_archive() ) {

				$base = bbp_get_forums_url();



			// Topic archive

			} elseif ( bbp_is_topic_archive() ) {

				$base = bbp_get_topics_url();



			// Default

			} else {

				$base = get_permalink( (int) $r['post_parent'] );

			}



			// Use pagination base

			$base = trailingslashit( $base ) . user_trailingslashit( $wp_rewrite->pagination_base . '/%#%/' );



		// Unpretty pagination

		} else {

			$base = add_query_arg( 'paged', '%#%' );

		}



		// Pagination settings with filter

		$bbp_topic_pagination = apply_filters( 'bbp_topic_pagination', array (

			'base'      => $base,

			'format'    => '',

			'total'     => $r['posts_per_page'] === $bbp->topic_query->found_posts ? 1 : ceil( (int) $bbp->topic_query->found_posts / (int) $r['posts_per_page'] ),

			'current'   => (int) $bbp->topic_query->paged,

			'prev_text' => is_rtl() ? '&rarr;' : '&larr;',

			'next_text' => is_rtl() ? '&larr;' : '&rarr;',

			'mid_size'  => 1

		) );



		// Add pagination to query object

		$bbp->topic_query->pagination_links = paginate_links( $bbp_topic_pagination );



		// Remove first page from pagination

		$bbp->topic_query->pagination_links = str_replace( $wp_rewrite->pagination_base . "/1/'", "'", $bbp->topic_query->pagination_links );

	}



	// Return object

	return apply_filters( 'bbp_has_topics', $bbp->topic_query->have_posts(), $bbp->topic_query );

}



/**

 * Whether there are more topics available in the loop

 *

 * @since bbPress (r2485)

 *

 * @uses WP_Query bbPress::topic_query::have_posts()

 * @return object Topic information

 */

function bbp_topics() {



	// Put into variable to check against next

	$have_posts = bbpress()->topic_query->have_posts();



	// Reset the post data when finished

	if ( empty( $have_posts ) )

		wp_reset_postdata();



	return $have_posts;

}



/**

 * Loads up the current topic in the loop

 *

 * @since bbPress (r2485)

 *

 * @uses WP_Query bbPress::topic_query::the_post()

 * @return object Topic information

 */

function bbp_the_topic() {

	return bbpress()->topic_query->the_post();

}



/**

 * Output the topic id

 *

 * @since bbPress (r2485)

 *

 * @uses bbp_get_topic_id() To get the topic id

 */

function bbp_topic_id( $topic_id = 0) {

	echo bbp_get_topic_id( $topic_id );

}

	/**

	 * Return the topic id

	 *

	 * @since bbPress (r2485)

	 *

	 * @param $topic_id Optional. Used to check emptiness

	 * @uses bbPress::topic_query::post::ID To get the topic id

	 * @uses bbp_is_topic() To check if the search result is a topic

	 * @uses bbp_is_single_topic() To check if it's a topic page

	 * @uses bbp_is_topic_edit() To check if it's a topic edit page

	 * @uses bbp_is_single_reply() To check if it it's a reply page

	 * @uses bbp_is_reply_edit() To check if it's a reply edit page

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

	 * @uses get_post_field() To get the post's post type

	 * @uses WP_Query::post::ID To get the topic id

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

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

	 *                        supplied topic id

	 * @return int The topic id

	 */

	function bbp_get_topic_id( $topic_id = 0 ) {

		global $wp_query;



		$bbp = bbpress();



		// Easy empty checking

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

			$bbp_topic_id = $topic_id;



		// Currently inside a topic loop

		} elseif ( !empty( $bbp->topic_query->in_the_loop ) && isset( $bbp->topic_query->post->ID ) ) {

			$bbp_topic_id = $bbp->topic_query->post->ID;



		// Currently inside a search loop

		} elseif ( !empty( $bbp->search_query->in_the_loop ) && isset( $bbp->search_query->post->ID ) && bbp_is_topic( $bbp->search_query->post->ID ) ) {

			$bbp_topic_id = $bbp->search_query->post->ID;



		// Currently viewing/editing a topic, likely alone

		} elseif ( ( bbp_is_single_topic() || bbp_is_topic_edit() ) && !empty( $bbp->current_topic_id ) ) {

			$bbp_topic_id = $bbp->current_topic_id;



		// Currently viewing/editing a topic, likely in a loop

		} elseif ( ( bbp_is_single_topic() || bbp_is_topic_edit() ) && isset( $wp_query->post->ID ) ) {

			$bbp_topic_id = $wp_query->post->ID;



		// Currently viewing/editing a reply

		} elseif ( bbp_is_single_reply() || bbp_is_reply_edit() ) {

			$bbp_topic_id = bbp_get_reply_topic_id();



		// Fallback

		} else {

			$bbp_topic_id = 0;

		}



		return (int) apply_filters( 'bbp_get_topic_id', (int) $bbp_topic_id, $topic_id );

	}



/**

 * Gets a topic

 *

 * @since bbPress (r2787)

 *

 * @param int|object $topic Topic id or topic object

 * @param string $output Optional. OBJECT, ARRAY_A, or ARRAY_N. Default = OBJECT

 * @param string $filter Optional Sanitation filter. See {@link sanitize_post()}

 * @uses get_post() To get the topic

 * @uses apply_filters() Calls 'bbp_get_topic' with the topic, output type and

 *                        sanitation filter

 * @return mixed Null if error or topic (in specified form) if success

 */

function bbp_get_topic( $topic, $output = OBJECT, $filter = 'raw' ) {



	// Use topic ID

	if ( empty( $topic ) || is_numeric( $topic ) )

		$topic = bbp_get_topic_id( $topic );



	// Attempt to load the topic

	$topic = get_post( $topic, OBJECT, $filter );

	if ( empty( $topic ) )

		return $topic;



	// Bail if post_type is not a topic

	if ( $topic->post_type !== bbp_get_topic_post_type() )

		return null;



	// Tweak the data type to return

	if ( $output === OBJECT ) {

		return $topic;



	} elseif ( $output === ARRAY_A ) {

		$_topic = get_object_vars( $topic );

		return $_topic;



	} elseif ( $output === ARRAY_N ) {

		$_topic = array_values( get_object_vars( $topic ) );

		return $_topic;



	}



	return apply_filters( 'bbp_get_topic', $topic, $output, $filter );

}



/**

 * Output the link to the topic in the topic loop

 *

 * @since bbPress (r2485)

 *

 * @param int $topic_id Optional. Topic id

 * @param $string $redirect_to Optional. Pass a redirect value for use with

 *                              shortcodes and other fun things.

 * @uses bbp_get_topic_permalink() To get the topic permalink

 */

function bbp_topic_permalink( $topic_id = 0, $redirect_to = '' ) {

	echo esc_url( bbp_get_topic_permalink( $topic_id, $redirect_to ) );

}

	/**

	 * Return the link to the topic

	 *

	 * @since bbPress (r2485)

	 *

	 * @param int $topic_id Optional. Topic id

	 * @param $string $redirect_to Optional. Pass a redirect value for use with

	 *                              shortcodes and other fun things.

	 * @uses bbp_get_topic_id() To get the topic id

	 * @uses get_permalink() To get the topic permalink

	 * @uses esc_url_raw() To clean the redirect_to url

	 * @uses apply_filters() Calls 'bbp_get_topic_permalink' with the link

	 *                        and topic id

	 * @return string Permanent link to topic

	 */

	function bbp_get_topic_permalink( $topic_id = 0, $redirect_to = '' ) {

		$topic_id = bbp_get_topic_id( $topic_id );



		// Use the redirect address

		if ( !empty( $redirect_to ) ) {

			$topic_permalink = esc_url_raw( $redirect_to );



		// Use the topic permalink

		} else {

			$topic_permalink = get_permalink( $topic_id );

		}



		return apply_filters( 'bbp_get_topic_permalink', $topic_permalink, $topic_id );

	}



/**

 * Output the title of the topic

 *

 * @since bbPress (r2485)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_title() To get the topic title

 */

function bbp_topic_title( $topic_id = 0 ) {

	echo bbp_get_topic_title( $topic_id );

}

	/**

	 * Return the title of the topic

	 *

	 * @since bbPress (r2485)

	 *

	 * @param int $topic_id Optional. Topic id

	 * @uses bbp_get_topic_id() To get the topic id

	 * @uses get_the_title() To get the title

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

	 *                        topic id

	 * @return string Title of topic

	 */

	function bbp_get_topic_title( $topic_id = 0 ) {

		$topic_id = bbp_get_topic_id( $topic_id );

		$title    = get_the_title( $topic_id );



		return apply_filters( 'bbp_get_topic_title', $title, $topic_id );

	}



/**

 * Output the topic archive title

 *

 * @since bbPress (r3249)

 *

 * @param string $title Default text to use as title

 */

function bbp_topic_archive_title( $title = '' ) {

	echo bbp_get_topic_archive_title( $title );

}

	/**

	 * Return the topic archive title

	 *

	 * @since bbPress (r3249)

	 *

	 * @param string $title Default text to use as title

	 *

	 * @uses bbp_get_page_by_path() Check if page exists at root path

	 * @uses get_the_title() Use the page title at the root path

	 * @uses get_post_type_object() Load the post type object

	 * @uses bbp_get_topic_post_type() Get the topic post type ID

	 * @uses get_post_type_labels() Get labels for topic post type

	 * @uses apply_filters() Allow output to be manipulated

	 *

	 * @return string The topic archive title

	 */

	function bbp_get_topic_archive_title( $title = '' ) {



		// If no title was passed

		if ( empty( $title ) ) {



			// Set root text to page title

			$page = bbp_get_page_by_path( bbp_get_topic_archive_slug() );

			if ( !empty( $page ) ) {

				$title = get_the_title( $page->ID );



			// Default to topic post type name label

			} else {

				$tto    = get_post_type_object( bbp_get_topic_post_type() );

				$title  = $tto->labels->name;

			}

		}



		return apply_filters( 'bbp_get_topic_archive_title', $title );

	}



/**

 * Output the content of the topic

 *

 * @since bbPress (r2780)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_content() To get the topic content

 */

function bbp_topic_content( $topic_id = 0 ) {

	echo bbp_get_topic_content( $topic_id );

}

	/**

	 * Return the content of the topic

	 *

	 * @since bbPress (r2780)

	 *

	 * @param int $topic_id Optional. Topic id

	 * @uses bbp_get_topic_id() To get the topic id

	 * @uses post_password_required() To check if the topic requires pass

	 * @uses get_the_password_form() To get the password form

	 * @uses get_post_field() To get the content post field

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

	 *                        and topic id

	 * @return string Content of the topic

	 */

	function bbp_get_topic_content( $topic_id = 0 ) {

		$topic_id = bbp_get_topic_id( $topic_id );



		// Check if password is required

		if ( post_password_required( $topic_id ) )

			return get_the_password_form();



		$content = get_post_field( 'post_content', $topic_id );



		return apply_filters( 'bbp_get_topic_content', $content, $topic_id );

	}



/**

 * Output the excerpt of the topic

 *

 * @since bbPress (r2780)

 *

 * @param int $topic_id Optional. Topic id

 * @param int $length Optional. Length of the excerpt. Defaults to 100 letters

 * @uses bbp_get_topic_excerpt() To get the topic excerpt

 */

function bbp_topic_excerpt( $topic_id = 0, $length = 100 ) {

	echo bbp_get_topic_excerpt( $topic_id, $length );

}

	/**

	 * Return the excerpt of the topic

	 *

	 * @since bbPress (r2780)

	 *

	 * @param int $topic_id Optional. topic id

	 * @param int $length Optional. Length of the excerpt. Defaults to 100

	 *                     letters

	 * @uses bbp_get_topic_id() To get the topic id

	 * @uses get_post_field() To get the excerpt

	 * @uses bbp_get_topic_content() To get the topic content

	 * @uses apply_filters() Calls 'bbp_get_topic_excerpt' with the excerpt,

	 *                        topic id and length

	 * @return string topic Excerpt

	 */

	function bbp_get_topic_excerpt( $topic_id = 0, $length = 100 ) {

		$topic_id = bbp_get_topic_id( $topic_id );

		$length   = (int) $length;

		$excerpt  = get_post_field( 'post_excerpt', $topic_id );



		if ( empty( $excerpt ) ) {

			$excerpt = bbp_get_topic_content( $topic_id );

		}



		$excerpt = trim( strip_tags( $excerpt ) );



		// Multibyte support

		if ( function_exists( 'mb_strlen' ) ) {

			$excerpt_length = mb_strlen( $excerpt );

		} else {

			$excerpt_length = strlen( $excerpt );

		}



		if ( !empty( $length ) && ( $excerpt_length > $length ) ) {

			$excerpt  = substr( $excerpt, 0, $length - 1 );

			$excerpt .= '&hellip;';

		}



		return apply_filters( 'bbp_get_topic_excerpt', $excerpt, $topic_id, $length );

	}



/**

 * Output the post date and time of a topic

 *

 * @since bbPress (r4155)

 *

 * @param int $topic_id Optional. Topic id.

 * @param bool $humanize Optional. Humanize output using time_since

 * @param bool $gmt Optional. Use GMT

 * @uses bbp_get_topic_post_date() to get the output

 */

function bbp_topic_post_date( $topic_id = 0, $humanize = false, $gmt = false ) {

	echo bbp_get_topic_post_date( $topic_id, $humanize, $gmt );

}

	/**

	 * Return the post date and time of a topic

	 *

	 * @since bbPress (r4155)

	 *

	 * @param int $topic_id Optional. Topic id.

	 * @param bool $humanize Optional. Humanize output using time_since

	 * @param bool $gmt Optional. Use GMT

	 * @uses bbp_get_topic_id() To get the topic id

	 * @uses get_post_time() to get the topic post time

	 * @uses bbp_get_time_since() to maybe humanize the topic post time

	 * @return string

	 */

	function bbp_get_topic_post_date( $topic_id = 0, $humanize = false, $gmt = false ) {

		$topic_id = bbp_get_topic_id( $topic_id );



		// 4 days, 4 hours ago

		if ( !empty( $humanize ) ) {

			$gmt_s  = !empty( $gmt ) ? 'U' : 'G';

			$date   = get_post_time( $gmt_s, $gmt, $topic_id );

			$time   = false; // For filter below

			$result = bbp_get_time_since( $date );



		// August 4, 2012 at 2:37 pm

		} else {

			$date   = get_post_time( get_option( 'date_format' ), $gmt, $topic_id, true );

			$time   = get_post_time( get_option( 'time_format' ), $gmt, $topic_id, true );

			$result = sprintf( _x( '%1$s at %2$s', 'date at time', 'bbpress' ), $date, $time );

		}



		return apply_filters( 'bbp_get_topic_post_date', $result, $topic_id, $humanize, $gmt, $date, $time );

	}



/**

 * Output pagination links of a topic within the topic loop

 *

 * @since bbPress (r2966)

 *

 * @param mixed $args See {@link bbp_get_topic_pagination()}

 * @uses bbp_get_topic_pagination() To get the topic pagination links

 */

function bbp_topic_pagination( $args = '' ) {

	echo bbp_get_topic_pagination( $args );

}

	/**

	 * Returns pagination links of a topic within the topic loop

	 *

	 * @since bbPress (r2966)

	 *

	 * @param mixed $args This function supports these arguments:

	 *  - topic_id: Topic id

	 *  - before: Before the links

	 *  - after: After the links

	 * @uses bbp_get_topic_id() To get the topic id

	 * @uses WP_Rewrite::using_permalinks() To check if the blog is using

	 *                                       permalinks

	 * @uses user_trailingslashit() To add a trailing slash

	 * @uses trailingslashit() To add a trailing slash

	 * @uses get_permalink() To get the permalink of the topic

	 * @uses add_query_arg() To add query args

	 * @uses bbp_get_topic_reply_count() To get topic reply count

	 * @uses bbp_show_topic_lead() Are we showing the topic as a lead?

	 * @uses get_option() To get replies per page option

	 * @uses paginate_links() To paginate the links

	 * @uses apply_filters() Calls 'bbp_get_topic_pagination' with the links

	 *                        and arguments

	 * @return string Pagination links

	 */

	function bbp_get_topic_pagination( $args = '' ) {

		global $wp_rewrite;



		// Bail if threading replies

		if ( bbp_thread_replies() ) {

			return;

		}



		// Parse arguments against default values

		$r = bbp_parse_args( $args, array(

			'topic_id' => bbp_get_topic_id(),

			'before'   => '<span class="bbp-topic-pagination">',

			'after'    => '</span>',

		), 'get_topic_pagination' );



		// If pretty permalinks are enabled, make our pagination pretty

		if ( $wp_rewrite->using_permalinks() ) {

			$base = trailingslashit( get_permalink( $r['topic_id'] ) ) . user_trailingslashit( $wp_rewrite->pagination_base . '/%#%/' );

		} else {

			$base = add_query_arg( 'paged', '%#%', get_permalink( $r['topic_id'] ) );

		}



		// Get total and add 1 if topic is included in the reply loop

		$total = bbp_get_topic_reply_count( $r['topic_id'], true );



		// Bump if topic is in loop

		if ( !bbp_show_lead_topic() )

			$total++;



		// Pagination settings

		$pagination = array(

			'base'      => $base,

			'format'    => '',

			'total'     => ceil( (int) $total / (int) bbp_get_replies_per_page() ),

			'current'   => 0,

			'prev_next' => false,

			'mid_size'  => 2,

			'end_size'  => 3,

			'add_args'  => ( bbp_get_view_all() ) ? array( 'view' => 'all' ) : false

		);



		// Add pagination to query object

		$pagination_links = paginate_links( $pagination );

		if ( !empty( $pagination_links ) ) {



			// Remove first page from pagination

			if ( $wp_rewrite->using_permalinks() ) {

				$pagination_links = str_replace( $wp_rewrite->pagination_base . '/1/', '', $pagination_links );

			} else {

				$pagination_links = str_replace( '&#038;paged=1', '', $pagination_links );

			}



			// Add before and after to pagination links

			$pagination_links = $r['before'] . $pagination_links . $r['after'];

		}



		return apply_filters( 'bbp_get_topic_pagination', $pagination_links, $args );

	}



/**

 * Append revisions to the topic content

 *

 * @since bbPress (r2782)

 *

 * @param string $content Optional. Content to which we need to append the revisions to

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_revision_log() To get the topic revision log

 * @uses apply_filters() Calls 'bbp_topic_append_revisions' with the processed

 *                        content, original content and topic id

 * @return string Content with the revisions appended

 */

function bbp_topic_content_append_revisions( $content = '', $topic_id = 0 ) {



	// Bail if in admin or feed

	if ( is_admin() || is_feed() )

		return;



	// Validate the ID

	$topic_id = bbp_get_topic_id( $topic_id );



	return apply_filters( 'bbp_topic_append_revisions', $content . bbp_get_topic_revision_log( $topic_id ), $content, $topic_id );

}



/**

 * Output the revision log of the topic

 *

 * @since bbPress (r2782)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_revision_log() To get the topic revision log

 */

function bbp_topic_revision_log( $topic_id = 0 ) {

	echo bbp_get_topic_revision_log( $topic_id );

}

	/**

	 * Return the formatted revision log of the topic

	 *

	 * @since bbPress (r2782)

	 *

	 * @param int $topic_id Optional. Topic id

	 * @uses bbp_get_topic_id() To get the topic id

	 * @uses bbp_get_topic_revisions() To get the topic revisions

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

	 * @uses bbp_get_topic_author_display_name() To get the topic author

	 * @uses bbp_get_author_link() To get the topic author link

	 * @uses bbp_convert_date() To convert the date

	 * @uses bbp_get_time_since() To get the time in since format

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

	 *                        log and topic id

	 * @return string Revision log of the topic

	 */

	function bbp_get_topic_revision_log( $topic_id = 0 ) {

		// Create necessary variables

		$topic_id     = bbp_get_topic_id( $topic_id );

		$revision_log = bbp_get_topic_raw_revision_log( $topic_id );



		if ( empty( $topic_id ) || empty( $revision_log ) || !is_array( $revision_log ) )

			return false;



		$revisions = bbp_get_topic_revisions( $topic_id );

		if ( empty( $revisions ) )

			return false;



		$r = "\n\n" . '<ul id="bbp-topic-revision-log-' . esc_attr( $topic_id ) . '" class="bbp-topic-revision-log">' . "\n\n";



		// Loop through revisions

		foreach ( (array) $revisions as $revision ) {



			if ( empty( $revision_log[$revision->ID] ) ) {

				$author_id = $revision->post_author;

				$reason    = '';

			} else {

				$author_id = $revision_log[$revision->ID]['author'];

				$reason    = $revision_log[$revision->ID]['reason'];

			}



			$author = bbp_get_author_link( array( 'size' => 14, 'link_text' => bbp_get_topic_author_display_name( $revision->ID ), 'post_id' => $revision->ID ) );

			$since  = bbp_get_time_since( bbp_convert_date( $revision->post_modified ) );



			$r .= "\t" . '<li id="bbp-topic-revision-log-' . esc_attr( $topic_id ) . '-item-' . esc_attr( $revision->ID ) . '" class="bbp-topic-revision-log-item">' . "\n";

			if ( !empty( $reason ) ) {

				$r .= "\t\t" . sprintf( __( 'This topic was modified %1$s by %2$s. Reason: %3$s', 'bbpress' ), esc_html( $since ), $author, esc_html( $reason ) ) . "\n";

			} else {

				$r .= "\t\t" . sprintf( __( 'This topic was modified %1$s by %2$s.', 'bbpress' ), esc_html( $since ), $author ) . "\n";

			}

			$r .= "\t" . '</li>' . "\n";



		}



		$r .= "\n" . '</ul>' . "\n\n";



		return apply_filters( 'bbp_get_topic_revision_log', $r, $topic_id );

	}

		/**

		 * Return the raw revision log of the topic

		 *

		 * @since bbPress (r2782)

		 *

		 * @param int $topic_id Optional. Topic id

		 * @uses bbp_get_topic_id() To get the topic id

		 * @uses get_post_meta() To get the revision log meta

		 * @uses apply_filters() Calls 'bbp_get_topic_raw_revision_log'

		 *                        with the log and topic id

		 * @return string Raw revision log of the topic

		 */

		function bbp_get_topic_raw_revision_log( $topic_id = 0 ) {

			$topic_id = bbp_get_topic_id( $topic_id );



			$revision_log = get_post_meta( $topic_id, '_bbp_revision_log', true );

			$revision_log = empty( $revision_log ) ? array() : $revision_log;



			return apply_filters( 'bbp_get_topic_raw_revision_log', $revision_log, $topic_id );

		}



/**

 * Return the revisions of the topic

 *

 * @since bbPress (r2782)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses wp_get_post_revisions() To get the topic revisions

 * @uses apply_filters() Calls 'bbp_get_topic_revisions'

 *                        with the revisions and topic id

 * @return string Topic revisions

 */

function bbp_get_topic_revisions( $topic_id = 0 ) {

	$topic_id  = bbp_get_topic_id( $topic_id );

	$revisions = wp_get_post_revisions( $topic_id, array( 'order' => 'ASC' ) );



	return apply_filters( 'bbp_get_topic_revisions', $revisions, $topic_id );

}



/**

 * Return the revision count of the topic

 *

 * @since bbPress (r2782)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_revisions() To get the topic revisions

 * @uses apply_filters() Calls 'bbp_get_topic_revision_count'

 *                        with the revision count and topic id

 * @return string Topic revision count

 */

function bbp_get_topic_revision_count( $topic_id = 0, $integer = false ) {

	$count  = (int) count( bbp_get_topic_revisions( $topic_id ) );

	$filter = ( true === $integer ) ? 'bbp_get_topic_revision_count_int' : 'bbp_get_topic_revision_count';



	return apply_filters( $filter, $count, $topic_id );

}



/**

 * Output the status of the topic

 *

 * @since bbPress (r2667)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_status() To get the topic status

 */

function bbp_topic_status( $topic_id = 0 ) {

	echo bbp_get_topic_status( $topic_id );

}

	/**

	 * Return the status of the topic

	 *

	 * @since bbPress (r2667)

	 *

	 * @param int $topic_id Optional. Topic id

	 * @uses bbp_get_topic_id() To get the topic id

	 * @uses get_post_status() To get the topic status

	 * @uses apply_filters() Calls 'bbp_get_topic_status' with the status

	 *                        and topic id

	 * @return string Status of topic

	 */

	function bbp_get_topic_status( $topic_id = 0 ) {

		$topic_id = bbp_get_topic_id( $topic_id );



		return apply_filters( 'bbp_get_topic_status', get_post_status( $topic_id ), $topic_id );

	}



/**

 * Is the topic open to new replies?

 *

 * @since bbPress (r2727)

 *

 * @uses bbp_get_topic_status()

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_is_topic_closed() To check if the topic is closed

 * @return bool True if open, false if closed.

 */

function bbp_is_topic_open( $topic_id = 0 ) {

	return !bbp_is_topic_closed( $topic_id );

}



	/**

	 * Is the topic closed to new replies?

	 *

	 * @since bbPress (r2746)

	 *

	 * @param int $topic_id Optional. Topic id

	 * @uses bbp_get_topic_status() To get the topic status

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

	 *

	 * @return bool True if closed, false if not.

	 */

	function bbp_is_topic_closed( $topic_id = 0 ) {

		$closed = bbp_get_topic_status( $topic_id ) === bbp_get_closed_status_id();

		return (bool) apply_filters( 'bbp_is_topic_closed', (bool) $closed, $topic_id );

	}



/**

 * Is the topic a sticky or super sticky?

 *

 * @since bbPress (r2754)

 *

 * @param int $topic_id Optional. Topic id

 * @param int $check_super Optional. If set to true and if the topic is not a

 *                           normal sticky, it is checked if it is a super

 *                           sticky or not. 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 bbp_get_stickies() To get the stickies

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

 * @return bool True if sticky or super sticky, false if not.

 */

function bbp_is_topic_sticky( $topic_id = 0, $check_super = true ) {

	$topic_id = bbp_get_topic_id( $topic_id );

	$forum_id = bbp_get_topic_forum_id( $topic_id );

	$stickies = bbp_get_stickies( $forum_id );



	if ( in_array( $topic_id, $stickies ) || ( !empty( $check_super ) && bbp_is_topic_super_sticky( $topic_id ) ) )

		return true;



	return false;

}



/**

 * Is the topic a super sticky?

 *

 * @since bbPress (r2754)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_super_stickies() To get the super stickies

 * @return bool True if super sticky, false if not.

 */

function bbp_is_topic_super_sticky( $topic_id = 0 ) {

	$topic_id = bbp_get_topic_id( $topic_id );

	$stickies = bbp_get_super_stickies( $topic_id );



	return in_array( $topic_id, $stickies );

}



/**

 * Is the topic not spam or deleted?

 *

 * @since bbPress (r3496)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_topic_status() To get the topic status

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

 * @return bool True if published, false if not.

 */

function bbp_is_topic_published( $topic_id = 0 ) {

	$topic_status = bbp_get_topic_status( bbp_get_topic_id( $topic_id ) ) === bbp_get_public_status_id();

	return (bool) apply_filters( 'bbp_is_topic_published', (bool) $topic_status, $topic_id );

}



/**

 * Is the topic marked as spam?

 *

 * @since bbPress (r2727)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_topic_status() To get the topic status

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

 * @return bool True if spam, false if not.

 */

function bbp_is_topic_spam( $topic_id = 0 ) {

	$topic_status = bbp_get_topic_status( bbp_get_topic_id( $topic_id ) ) === bbp_get_spam_status_id();

	return (bool) apply_filters( 'bbp_is_topic_spam', (bool) $topic_status, $topic_id );

}



/**

 * Is the topic trashed?

 *

 * @since bbPress (r2888)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_topic_status() To get the topic status

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

 * @return bool True if trashed, false if not.

 */

function bbp_is_topic_trash( $topic_id = 0 ) {

	$topic_status = bbp_get_topic_status( bbp_get_topic_id( $topic_id ) ) === bbp_get_trash_status_id();

	return (bool) apply_filters( 'bbp_is_topic_trash', (bool) $topic_status, $topic_id );

}



/**

 * Is the posted by an anonymous user?

 *

 * @since bbPress (r2753)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_id() To get the topic id

 * @uses bbp_get_topic_author_id() To get the topic author id

 * @uses get_post_meta() To get the anonymous user name and email meta

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

 * @return bool True if the post is by an anonymous user, false if not.

 */

function bbp_is_topic_anonymous( $topic_id = 0 ) {

	$topic_id = bbp_get_topic_id( $topic_id );

	$retval   = false;



	if ( !bbp_get_topic_author_id( $topic_id ) )

		$retval = true;



	elseif ( get_post_meta( $topic_id, '_bbp_anonymous_name',  true ) )

		$retval = true;



	elseif ( get_post_meta( $topic_id, '_bbp_anonymous_email', true ) )

		$retval = true;



	// The topic is by an anonymous user

	return (bool) apply_filters( 'bbp_is_topic_anonymous', $retval, $topic_id );

}



/**

 * Deprecated. Use bbp_topic_author_display_name() instead.

 *

 * Output the author of the topic.

 *

 * @since bbPress (r2590)

 * @deprecated bbPress (r5119)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_author() To get the topic author

 */

function bbp_topic_author( $topic_id = 0 ) {

	echo bbp_get_topic_author( $topic_id );

}

	/**

	 * Deprecated. Use bbp_get_topic_author_display_name() instead.

	 *

	 * Return the author of the topic

	 *

	 * @since bbPress (r2590)

	 * @deprecated bbPress (r5119)

	 *

	 * @param int $topic_id Optional. Topic id

	 * @uses bbp_get_topic_id() To get the topic id

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

	 *                                 anonymous user

	 * @uses bbp_get_topic_author_id() To get the topic author id

	 * @uses get_the_author_meta() To get the display name of the author

	 * @uses get_post_meta() To get the name of the anonymous poster

	 * @uses apply_filters() Calls 'bbp_get_topic_author' with the author

	 *                        and topic id

	 * @return string Author of topic

	 */

	function bbp_get_topic_author( $topic_id = 0 ) {

		$topic_id = bbp_get_topic_id( $topic_id );



		if ( !bbp_is_topic_anonymous( $topic_id ) ) {

			$author = get_the_author_meta( 'display_name', bbp_get_topic_author_id( $topic_id ) );

		} else {

			$author = get_post_meta( $topic_id, '_bbp_anonymous_name', true );

		}



		return apply_filters( 'bbp_get_topic_author', $author, $topic_id );

	}



/**

 * Output the author ID of the topic

 *

 * @since bbPress (r2590)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_author_id() To get the topic author id

 */

function bbp_topic_author_id( $topic_id = 0 ) {

	echo bbp_get_topic_author_id( $topic_id );

}

	/**

	 * Return the author ID of the topic

	 *

	 * @since bbPress (r2590)

	 *

	 * @param int $topic_id Optional. Topic id

	 * @uses bbp_get_topic_id() To get the topic id

	 * @uses get_post_field() To get the topic author id

	 * @uses apply_filters() Calls 'bbp_get_topic_author_id' with the author

	 *                        id and topic id

	 * @return string Author of topic

	 */

	function bbp_get_topic_author_id( $topic_id = 0 ) {

		$topic_id  = bbp_get_topic_id( $topic_id );

		$author_id = get_post_field( 'post_author', $topic_id );



		return (int) apply_filters( 'bbp_get_topic_author_id', (int) $author_id, $topic_id );

	}



/**

 * Output the author display_name of the topic

 *

 * @since bbPress (r2590)

 *

 * @param int $topic_id Optional. Topic id

 * @uses bbp_get_topic_author_display_name() To get the topic author's display

 *                                            name

 */

function bbp_topic_author_display_name( $topic_id = 0 ) {

	echo bbp_get_topic_author_display_name( $topic_id );

}

	/**

	 * Return the author display_name of the topic

	 *

	 * @since bbPress (r2485)

	 *

	 * @param int $topic_id Optional. Topic id

	 * @uses bbp_get_topic_id() To get the topic id

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

	 *                                 anonymous user

	 * @uses bbp_get_topic_author_id() To get the topic author id

	 * @uses get_the_author_meta() To get the author meta

	 * @uses get_post_meta() To get the anonymous user name

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

	 *                        display name and topic id

	 * @return string Topic's author's display name

	 */

	function bbp_get_topic_author_display_name( $topic_id = 0 ) {

		$topic_id = bbp_get_topic_id( $topic_id );



		// Check for anonymous user

		if ( !bbp_is_topic_anonymous( $topic_id ) ) {



			// Get the author ID

			$author_id = bbp_get_topic_author_id( $topic_id );



			// Try to get a display name

			$author_name = get_the_author_meta( 'display_name', $author_id );



			// Fall back to user login

			if ( empty( $author_name ) ) {

				$author_name = get_the_author_meta( 'user_login', $author_id );

			}



		// User does not have an account

		} else {

			$author_name = get_post_meta( $topic_id, '_bbp_anonymous_name', true );

		}



		// If nothing could be found anywhere, use Anonymous

		if ( empty( $author_name ) )

			$author_name = __( 'Anonymous', 'bbpress' );



		// Encode possible UTF8 display names

		if ( seems_utf8( $author_name ) === false )

			$author_name = utf8_encode( $author_name );



		return apply_filters( 'bbp_get_topic_author_display_name', $author_name, $topic_id );

	}



/**

 * Output the author avatar of the topic

 *

 * @since bbPress (r2590)

 *

 * @param int $topic_id Optional. Topic id

 * @param int $size Optional. Avatar size. Defaults to 40

 * @uses bbp_get_topic_author_avatar() To get the topic author avatar

 */

function bbp_topic_author_avatar( $topic_id = 0, $size = 40 ) {

	echo bbp_get_topic_author_avatar( $topic_id, $size );

}

	/**

	 * Return the author avatar of the topic

	 *

	 * @since bbPress (r2590)

	 *

	 * @param int $topic_id Optional. Topic id

	 * @param int $size Optional. Avatar size. Defaults to 40

	 * @uses bbp_get_topic_id() To get the topic id

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

	 *                                 anonymous user

	 * @uses bbp_get_topic_author_id() To get the topic author id

	 * @uses get_post_meta() To get the anonymous user's email

	 * @uses get_avatar() To get the avatar

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

	 *                        avatar, topic id and size

	 * @return string Avatar of the author of the topic

	 */

	function bbp_get_topic_author_avatar( $topic_id = 0, $size = 40 ) {

		$author_avatar = '';



		$topic_id = bbp_get_topic_id( $topic_id );

		if ( !empty( $topic_id ) ) {

			if ( !bbp_is_topic_anonymous( $topic_id ) ) {

				$author_avatar = get_avatar( bbp_get_topic_author_id( $topic_id ), $size );

			} else {

				$author_avatar = get_avatar( get_post_meta( $topic_id, '_bbp_anonymous_email', true ), $size );

			}

		}



		return apply_filters( 'bbp_get_topic_author_avatar', $author_avatar, $topic_id, $size );

	}



/**

 * Output the author link of the topic

 *

 * @since bbPress (r2717)

 *

 * @param mixed|int $args If it is an integer, it is used as topic_id. Optional.

 * @uses bbp_get_topic_author_link() To get the topic author link

 */

function bbp_topic_author_link( $args = '' ) {

	echo bbp_get_topic_author_link( $args );

}

	/**

	 * Return the author link of the topic

	 *

	 * @since bbPress (r2717)

	 *

	 * @param mixed|int $args If it is an integer, it is used as topic id.

	 *                         Optional.

	 * @uses bbp_get_topic_id() To get the topic id

	 * @uses bbp_get_topic_author_display_name() To get the topic author

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

	 *                                 anonymous user

	 * @uses bbp_get_topic_author_url() To get the topic author url

	 * @uses bbp_get_topic_author_avatar() To get the topic author avatar

	 * @uses bbp_get_topic_author_display_name() To get the topic author display

	 *                                      name

	 * @uses bbp_get_user_display_role() To get the topic author display role

	 * @uses bbp_get_topic_author_id() To get the topic author id

	 * @uses apply_filters() Calls 'bbp_get_topic_author_link' with the link

	 *                        and args

	 * @return string Author link of topic

	 */

	function bbp_get_topic_author_link( $args = '' ) {



		// Parse arguments against default values

		$r = bbp_parse_args( $args, array(

			'post_id'    => 0,

			'link_title' => '',

			'type'       => 'both',

			'size'       => 80,

			'sep'        => '&nbsp;',

			'show_role'  => false

		), 'get_topic_author_link' );



		// Used as topic_id

		if ( is_numeric( $args ) ) …

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