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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
Line | Code |
---|---|
2221 |
|
2222 | if ( ! post_type_exists( $type ) ) |
2223 | return new stdClass; |
2224 |
|
2225 | $cache_key = _count_posts_cache_key( $type, $perm ); |
2226 |
|
2227 | $counts = wp_cache_get( $cache_key, 'counts' ); |
2228 | if ( false !== $counts ) { |
2229 | /** This filter is documented in wp-includes/post.php */ |
2230 | return apply_filters( 'wp_count_posts', $counts, $type, $perm ); |
2231 | } |
2232 |
|
2233 | $query = "SELECT post_status, COUNT( * ) AS num_posts FROM {$wpdb->posts} WHERE post_type = %s"; |
2234 | if ( 'readable' == $perm && is_user_logged_in() ) { |
2235 | $post_type_object = get_post_type_object($type); |
2236 | if ( ! current_user_can( $post_type_object->cap->read_private_posts ) ) { |
2237 | $query .= $wpdb->prepare( " AND (post_status != 'private' OR ( post_author = %d AND post_status = 'private' ))", |
2238 | get_current_user_id() |
2239 | ); |
Line | Code |
2256 | * |
2257 | * @since 3.7.0 |
2258 | * |
2259 | * @param object $counts An object containing the current post_type's post |
2260 | * counts by status. |
2261 | * @param string $type Post type. |
2262 | * @param string $perm The permission to determine if the posts are 'readable' |
2263 | * by the current user. |
2264 | */ |
2265 | return apply_filters( 'wp_count_posts', $counts, $type, $perm ); |
2266 | } |
2267 |
|
2268 | /** |
2269 | * Count number of attachments for the mime type(s). |
2270 | * |
2271 | * If you set the optional mime_type parameter, then an array will still be |
2272 | * returned, but will only have the item you are looking for. It does not give |
2273 | * you the number of attachments that are children of a post. You can get that |
2274 | * by counting the number of children that post has. |