X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/256a3b381f63716209b3527d0a14442ae570c283..dc1231b7312fbdca99e9e887cc2bb35a28f85cdc:/wp-includes/category-template.php?ds=inline diff --git a/wp-includes/category-template.php b/wp-includes/category-template.php index 6ffd9d35..6bac6c11 100644 --- a/wp-includes/category-template.php +++ b/wp-includes/category-template.php @@ -56,7 +56,7 @@ function get_category_parents( $id, $link = false, $separator = '/', $nicename = } if ( $link ) - $chain .= 'name ) ) . '">'.$name.'' . $separator; + $chain .= ''.$name.'' . $separator; else $chain .= $name.$separator; return $chain; @@ -65,11 +65,15 @@ function get_category_parents( $id, $link = false, $separator = '/', $nicename = /** * Retrieve post categories. * + * This tag may be used outside The Loop by passing a post id as the parameter. + * + * Note: This function only returns results from the default "category" taxonomy. + * For custom taxonomies use get_the_terms(). + * * @since 0.71 - * @uses $post * * @param int $id Optional, default to current post ID. The post ID. - * @return array + * @return array Array of objects, one for each category assigned to the post. */ function get_the_category( $id = false ) { $categories = get_the_terms( $id, 'category' ); @@ -82,7 +86,13 @@ function get_the_category( $id = false ) { _make_cat_compat( $categories[$key] ); } - // Filter name is plural because we return alot of categories (possibly more than #13237) not just one + /** + * Filter the array of categories to return for a post. + * + * @since 3.1.0 + * + * @param array $categories An array of categories to return for the post. + */ return apply_filters( 'get_the_categories', $categories ); } @@ -136,9 +146,11 @@ function _usort_terms_by_ID( $a, $b ) { function get_the_category_by_ID( $cat_ID ) { $cat_ID = (int) $cat_ID; $category = get_term( $cat_ID, 'category' ); + if ( is_wp_error( $category ) ) return $category; - return $category->name; + + return ( $category ) ? $category->name : ''; } /** @@ -146,6 +158,8 @@ function get_the_category_by_ID( $cat_ID ) { * * @since 1.5.1 * + * @global WP_Rewrite $wp_rewrite + * * @param string $separator Optional, default is empty string. Separator for between the categories. * @param string $parents Optional. How to display the parents. * @param int $post_id Optional. Post ID to retrieve categories. @@ -153,12 +167,16 @@ function get_the_category_by_ID( $cat_ID ) { */ function get_the_category_list( $separator = '', $parents='', $post_id = false ) { global $wp_rewrite; - if ( ! is_object_in_taxonomy( get_post_type( $post_id ), 'category' ) ) + if ( ! is_object_in_taxonomy( get_post_type( $post_id ), 'category' ) ) { + /** This filter is documented in wp-includes/category-template.php */ return apply_filters( 'the_category', '', $separator, $parents ); + } $categories = get_the_category( $post_id ); - if ( empty( $categories ) ) + if ( empty( $categories ) ) { + /** This filter is documented in wp-includes/category-template.php */ return apply_filters( 'the_category', __( 'Uncategorized' ), $separator, $parents ); + } $rel = ( is_object( $wp_rewrite ) && $wp_rewrite->using_permalinks() ) ? 'rel="category tag"' : 'rel="category"'; @@ -171,17 +189,17 @@ function get_the_category_list( $separator = '', $parents='', $post_id = false ) case 'multiple': if ( $category->parent ) $thelist .= get_category_parents( $category->parent, true, $separator ); - $thelist .= 'name ) ) . '" ' . $rel . '>' . $category->name.''; + $thelist .= '' . $category->name.''; break; case 'single': - $thelist .= 'name ) ) . '" ' . $rel . '>'; + $thelist .= ''; if ( $category->parent ) $thelist .= get_category_parents( $category->parent, false, $separator ); $thelist .= $category->name.''; break; case '': default: - $thelist .= 'name ) ) . '" ' . $rel . '>' . $category->name.''; + $thelist .= '' . $category->name.''; } } $thelist .= ''; @@ -194,21 +212,32 @@ function get_the_category_list( $separator = '', $parents='', $post_id = false ) case 'multiple': if ( $category->parent ) $thelist .= get_category_parents( $category->parent, true, $separator ); - $thelist .= 'name ) ) . '" ' . $rel . '>' . $category->name.''; + $thelist .= '' . $category->name.''; break; case 'single': - $thelist .= 'name ) ) . '" ' . $rel . '>'; + $thelist .= ''; if ( $category->parent ) $thelist .= get_category_parents( $category->parent, false, $separator ); $thelist .= "$category->name"; break; case '': default: - $thelist .= 'name ) ) . '" ' . $rel . '>' . $category->name.''; + $thelist .= '' . $category->name.''; } ++$i; } } + + /** + * Filter the category or list of categories. + * + * @since 1.2.0 + * + * @param array $thelist List of categories for the current post. + * @param string $separator Separator used between the categories. + * @param string $parents How to display the category parents. Accepts 'multiple', + * 'single', or empty. + */ return apply_filters( 'the_category', $thelist, $separator, $parents ); } @@ -225,7 +254,6 @@ function get_the_category_list( $separator = '', $parents='', $post_id = false ) * As of 2.7, the function can be used anywhere if it is provided a post ID or post object. * * @since 1.2.0 - * @uses has_category() * * @param int|string|array $category Category ID, name or slug, or array of said. * @param int|object $post Optional. Post to check instead of the current post. (since 2.7.0) @@ -266,35 +294,51 @@ function category_description( $category = 0 ) { /** * Display or retrieve the HTML dropdown list of categories. * - * The list of arguments is below: - * 'show_option_all' (string) - Text to display for showing all categories. - * 'show_option_none' (string) - Text to display for showing no categories. - * 'orderby' (string) default is 'ID' - What column to use for ordering the - * categories. - * 'order' (string) default is 'ASC' - What direction to order categories. - * 'show_count' (bool|int) default is 0 - Whether to show how many posts are - * in the category. - * 'hide_empty' (bool|int) default is 1 - Whether to hide categories that - * don't have any posts attached to them. - * 'child_of' (int) default is 0 - See {@link get_categories()}. - * 'exclude' (string) - See {@link get_categories()}. - * 'echo' (bool|int) default is 1 - Whether to display or retrieve content. - * 'depth' (int) - The max depth. - * 'tab_index' (int) - Tab index for select element. - * 'name' (string) - The name attribute value for select element. - * 'id' (string) - The ID attribute value for select element. Defaults to name if omitted. - * 'class' (string) - The class attribute value for select element. - * 'selected' (int) - Which category ID is selected. - * 'taxonomy' (string) - The name of the taxonomy to retrieve. Defaults to category. - * * The 'hierarchical' argument, which is disabled by default, will override the * depth argument, unless it is true. When the argument is false, it will * display all of the categories. When it is enabled it will use the value in * the 'depth' argument. * * @since 2.1.0 - * - * @param string|array $args Optional. Override default arguments. + * @since 4.2.0 Introduced the `value_field` argument. + * + * @param string|array $args { + * Optional. Array or string of arguments to generate a categories drop-down element. + * + * @type string $show_option_all Text to display for showing all categories. Default empty. + * @type string $show_option_none Text to display for showing no categories. Default empty. + * @type string $option_none_value Value to use when no category is selected. Default empty. + * @type string $orderby Which column to use for ordering categories. See get_terms() for a list + * of accepted values. Default 'id' (term_id). + * @type string $order Whether to order terms in ascending or descending order. Accepts 'ASC' + * or 'DESC'. Default 'ASC'. + * @type bool $pad_counts See get_terms() for an argument description. Default false. + * @type bool|int $show_count Whether to include post counts. Accepts 0, 1, or their bool equivalents. + * Default 0. + * @type bool|int $hide_empty Whether to hide categories that don't have any posts. Accepts 0, 1, or + * their bool equivalents. Default 1. + * @type int $child_of Term ID to retrieve child terms of. See get_terms(). Default 0. + * @type array|string $exclude Array or comma/space-separated string of term ids to exclude. + * If `$include` is non-empty, `$exclude` is ignored. Default empty array. + * @type bool|int $echo Whether to echo or return the generated markup. Accepts 0, 1, or their + * bool equivalents. Default 1. + * @type bool|int $hierarchical Whether to traverse the taxonomy hierarchy. Accepts 0, 1, or their bool + * equivalents. Default 0. + * @type int $depth Maximum depth. Default 0. + * @type int $tab_index Tab index for the select element. Default 0 (no tabindex). + * @type string $name Value for the 'name' attribute of the select element. Default 'cat'. + * @type string $id Value for the 'id' attribute of the select element. Defaults to the value + * of `$name`. + * @type string $class Value for the 'class' attribute of the select element. Default 'postform'. + * @type int|string $selected Value of the option that should be selected. Default 0. + * @type string $value_field Term field that should be used to populate the 'value' attribute + * of the option elements. Accepts any valid term field: 'term_id', 'name', + * 'slug', 'term_group', 'term_taxonomy_id', 'taxonomy', 'description', + * 'parent', 'count'. Default 'term_id'. + * @type string $taxonomy Name of the category to retrieve. Default 'category'. + * @type bool $hide_if_empty True to skip generating markup if no categories are found. + * Default false (create select element even if no categories are found). + * } * @return string HTML content only if 'echo' argument is 0. */ function wp_dropdown_categories( $args = '' ) { @@ -308,7 +352,8 @@ function wp_dropdown_categories( $args = '' ) { 'name' => 'cat', 'id' => '', 'class' => 'postform', 'depth' => 0, 'tab_index' => 0, 'taxonomy' => 'category', - 'hide_if_empty' => false + 'hide_if_empty' => false, 'option_none_value' => -1, + 'value_field' => 'term_id', ); $defaults['selected'] = ( is_category() ) ? get_query_var( 'cat' ) : 0; @@ -320,62 +365,95 @@ function wp_dropdown_categories( $args = '' ) { } $r = wp_parse_args( $args, $defaults ); + $option_none_value = $r['option_none_value']; - if ( !isset( $r['pad_counts'] ) && $r['show_count'] && $r['hierarchical'] ) { + if ( ! isset( $r['pad_counts'] ) && $r['show_count'] && $r['hierarchical'] ) { $r['pad_counts'] = true; } - extract( $r ); + $tab_index = $r['tab_index']; $tab_index_attribute = ''; - if ( (int) $tab_index > 0 ) + if ( (int) $tab_index > 0 ) { $tab_index_attribute = " tabindex=\"$tab_index\""; + } + + // Avoid clashes with the 'name' param of get_terms(). + $get_terms_args = $r; + unset( $get_terms_args['name'] ); + $categories = get_terms( $r['taxonomy'], $get_terms_args ); - $categories = get_terms( $taxonomy, $r ); - $name = esc_attr( $name ); - $class = esc_attr( $class ); - $id = $id ? esc_attr( $id ) : $name; + $name = esc_attr( $r['name'] ); + $class = esc_attr( $r['class'] ); + $id = $r['id'] ? esc_attr( $r['id'] ) : $name; - if ( ! $r['hide_if_empty'] || ! empty($categories) ) + if ( ! $r['hide_if_empty'] || ! empty( $categories ) ) { $output = "\n"; + } + /** + * Filter the taxonomy drop-down output. + * + * @since 2.1.0 + * + * @param string $output HTML output. + * @param array $r Arguments used to build the drop-down. + */ + $output = apply_filters( 'wp_dropdown_cats', $output, $r ); - $output = apply_filters( 'wp_dropdown_cats', $output ); - - if ( $echo ) + if ( $r['echo'] ) { echo $output; - + } return $output; } @@ -392,7 +470,7 @@ function wp_dropdown_categories( $args = '' ) { * 'hide_empty' (bool|int) default is 1 - Whether to hide categories that * don't have any posts attached to them. * 'use_desc_for_title' (bool|int) default is 1 - Whether to use the - * description instead of the category title. + * category description as the title attribute. * 'feed' - See {@link get_categories()}. * 'feed_type' - See {@link get_categories()}. * 'feed_image' - See {@link get_categories()}. @@ -408,7 +486,7 @@ function wp_dropdown_categories( $args = '' ) { * @since 2.1.0 * * @param string|array $args Optional. Override default arguments. - * @return string HTML content only if 'echo' argument is 0. + * @return false|string HTML content only if 'echo' argument is 0. */ function wp_list_categories( $args = '' ) { $defaults = array( @@ -435,60 +513,95 @@ function wp_list_categories( $args = '' ) { $r['exclude'] = ''; } - if ( !isset( $r['class'] ) ) + if ( ! isset( $r['class'] ) ) $r['class'] = ( 'category' == $r['taxonomy'] ) ? 'categories' : $r['taxonomy']; - extract( $r ); - - if ( !taxonomy_exists($taxonomy) ) + if ( ! taxonomy_exists( $r['taxonomy'] ) ) { return false; + } + + $show_option_all = $r['show_option_all']; + $show_option_none = $r['show_option_none']; $categories = get_categories( $r ); $output = ''; - if ( $title_li && 'list' == $style ) - $output = '
  • ' . $title_li . '