Turn delete_meta() , get_post_meta_by_id(), update_meta(), delete_post_meta_by_key() into wrappers around the metadata API. Add back compat *_postmeta actions to metadata API. Props jgadbois. see #18196
git-svn-id: https://develop.svn.wordpress.org/trunk@18500 602fd350-edb4-49c9-b593-d223f7449a82
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@ -701,17 +701,7 @@ function add_meta( $post_ID ) {
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* @return unknown
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*/
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function delete_meta( $mid ) {
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global $wpdb;
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$mid = (int) $mid;
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$post_id = $wpdb->get_var( $wpdb->prepare("SELECT post_id FROM $wpdb->postmeta WHERE meta_id = %d", $mid) );
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do_action( 'delete_postmeta', $mid );
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wp_cache_delete($post_id, 'post_meta');
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$rval = $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->postmeta WHERE meta_id = %d", $mid) );
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do_action( 'deleted_postmeta', $mid );
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return $rval;
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return delete_metadata_by_mid( 'post' , $mid );
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}
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/**
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@ -742,15 +732,7 @@ function get_meta_keys() {
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* @return unknown
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*/
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function get_post_meta_by_id( $mid ) {
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global $wpdb;
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$mid = (int) $mid;
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$meta = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->postmeta WHERE meta_id = %d", $mid) );
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if ( empty($meta) )
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return false;
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if ( is_serialized_string( $meta->meta_value ) )
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$meta->meta_value = maybe_unserialize( $meta->meta_value );
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return $meta;
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return get_metadata_by_mid( 'post', $mid );
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}
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/**
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@ -782,27 +764,10 @@ function has_meta( $postid ) {
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* @return unknown
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*/
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function update_meta( $meta_id, $meta_key, $meta_value ) {
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global $wpdb;
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$meta_key = stripslashes( $meta_key );
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$meta_value = stripslashes_deep( $meta_value );
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$meta_key = stripslashes($meta_key);
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if ( '' === trim( $meta_value ) )
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return false;
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$post_id = $wpdb->get_var( $wpdb->prepare("SELECT post_id FROM $wpdb->postmeta WHERE meta_id = %d", $meta_id) );
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$meta_value = maybe_serialize( stripslashes_deep( $meta_value ) );
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$meta_id = (int) $meta_id;
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$data = compact( 'meta_key', 'meta_value' );
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$where = compact( 'meta_id' );
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do_action( 'update_postmeta', $meta_id, $post_id, $meta_key, $meta_value );
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$rval = $wpdb->update( $wpdb->postmeta, $data, $where );
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wp_cache_delete($post_id, 'post_meta');
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do_action( 'updated_postmeta', $meta_id, $post_id, $meta_key, $meta_value );
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return $rval;
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return update_metadata_by_mid( 'post', $meta_id, $meta_value, $meta_key );
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}
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//
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@ -150,6 +150,9 @@ function update_metadata($meta_type, $object_id, $meta_key, $meta_value, $prev_v
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do_action( "update_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
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if ( 'post' == $meta_type )
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do_action( 'update_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
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$wpdb->update( $table, $data, $where );
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wp_cache_delete($object_id, $meta_type . '_meta');
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@ -159,6 +162,9 @@ function update_metadata($meta_type, $object_id, $meta_key, $meta_value, $prev_v
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do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
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if ( 'post' == $meta_type )
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do_action( 'updated_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
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return true;
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}
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@ -217,8 +223,14 @@ function delete_metadata($meta_type, $object_id, $meta_key, $meta_value = '', $d
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if ( !count( $meta_ids ) )
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return false;
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if ( $delete_all )
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$object_ids = $wpdb->get_col( $wpdb->prepare( "SELECT $type_column FROM $table WHERE meta_key = %s", $meta_key ) );
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do_action( "delete_{$meta_type}_meta", $meta_ids, $object_id, $meta_key, $_meta_value );
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if ( 'post' == $meta_type )
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do_action( 'delete_postmeta', $meta_ids );
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$query = "DELETE FROM $table WHERE $id_column IN( " . implode( ',', $meta_ids ) . " )";
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$count = $wpdb->query($query);
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@ -226,13 +238,23 @@ function delete_metadata($meta_type, $object_id, $meta_key, $meta_value = '', $d
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if ( !$count )
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return false;
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wp_cache_delete($object_id, $meta_type . '_meta');
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if ( $delete_all ) {
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foreach ( (array) $object_ids as $o_id ) {
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wp_cache_delete($o_id, $meta_type . '_meta');
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}
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} else {
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wp_cache_delete($object_id, $meta_type . '_meta');
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}
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// users cache stores usermeta that must be cleared.
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if ( 'user' == $meta_type )
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clean_user_cache($object_id);
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do_action( "deleted_{$meta_type}_meta", $meta_ids, $object_id, $meta_key, $_meta_value );
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if ( 'post' == $meta_type )
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do_action( 'deleted_postmeta', $meta_ids );
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return true;
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}
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@ -382,6 +404,9 @@ function update_metadata_by_mid( $meta_type, $meta_id, $meta_value, $meta_key =
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do_action( "update_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
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if ( 'post' == $meta_type )
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do_action( 'update_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
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// Run the update query, all fields in $data are %s, $where is a %d.
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$result = (bool) $wpdb->update( $table, $data, $where, '%s', '%d' );
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@ -394,6 +419,9 @@ function update_metadata_by_mid( $meta_type, $meta_id, $meta_value, $meta_key =
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do_action( "updated_{$meta_type}_meta", $meta_id, $object_id, $meta_key, $_meta_value );
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if ( 'post' == $meta_type )
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do_action( 'updated_postmeta', $meta_id, $object_id, $meta_key, $meta_value );
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return $result;
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}
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@ -436,6 +464,9 @@ function delete_metadata_by_mid( $meta_type, $meta_id ) {
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do_action( "delete_{$meta_type}_meta", (array) $meta_id, $object_id, $meta->meta_key, $meta->meta_value );
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if ( 'post' == $meta_type )
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do_action( 'delete_postmeta', $object_id );
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// Run the query, will return true if deleted, false otherwise
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$result = (bool) $wpdb->query( $wpdb->prepare( "DELETE FROM $table WHERE $id_column = %d LIMIT 1;", $meta_id ) );
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@ -448,6 +479,9 @@ function delete_metadata_by_mid( $meta_type, $meta_id ) {
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do_action( "deleted_{$meta_type}_meta", (array) $meta_id, $object_id, $meta->meta_key, $meta->meta_value );
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if ( 'post' == $meta_type )
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do_action( 'delete_postmeta', $object_id );
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return $result;
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}
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@ -1497,22 +1497,7 @@ function update_post_meta($post_id, $meta_key, $meta_value, $prev_value = '') {
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* @return bool Whether the post meta key was deleted from the database
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*/
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function delete_post_meta_by_key($post_meta_key) {
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if ( !$post_meta_key )
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return false;
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global $wpdb;
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$post_ids = $wpdb->get_col($wpdb->prepare("SELECT DISTINCT post_id FROM $wpdb->postmeta WHERE meta_key = %s", $post_meta_key));
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if ( $post_ids ) {
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$postmetaids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE meta_key = %s", $post_meta_key ) );
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$in = implode( ',', array_fill(1, count($postmetaids), '%d'));
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do_action( 'delete_postmeta', $postmetaids );
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$wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->postmeta WHERE meta_id IN($in)", $postmetaids ));
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do_action( 'deleted_postmeta', $postmetaids );
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foreach ( $post_ids as $post_id )
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wp_cache_delete($post_id, 'post_meta');
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return true;
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}
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return false;
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return delete_metadata( 'post', null, $post_meta_key, '', true );
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}
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/**
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