// expected_slashed ($meta_key)
$meta_key = stripslashes($meta_key);
+ $meta_value = stripslashes_deep($meta_value);
+ $meta_value = sanitize_meta( $meta_key, $meta_value, $meta_type );
+
+ $check = apply_filters( "add_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $unique );
+ if ( null !== $check )
+ return (bool) $check;
if ( $unique && $wpdb->get_var( $wpdb->prepare(
"SELECT COUNT(*) FROM $table WHERE meta_key = %s AND $column = %d",
return false;
$_meta_value = $meta_value;
- $meta_value = maybe_serialize( stripslashes_deep($meta_value) );
+ $meta_value = maybe_serialize( $meta_value );
+
+ do_action( "add_{$meta_type}_meta", $object_id, $meta_key, $_meta_value );
$wpdb->insert( $table, array(
$column => $object_id,
// expected_slashed ($meta_key)
$meta_key = stripslashes($meta_key);
+ $meta_value = stripslashes_deep($meta_value);
+ $meta_value = sanitize_meta( $meta_key, $meta_value, $meta_type );
+
+ $check = apply_filters( "update_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $prev_value );
+ if ( null !== $check )
+ return (bool) $check;
if ( ! $meta_id = $wpdb->get_var( $wpdb->prepare( "SELECT $id_column FROM $table WHERE meta_key = %s AND $column = %d", $meta_key, $object_id ) ) )
return add_metadata($meta_type, $object_id, $meta_key, $meta_value);
if ( empty($prev_value) ) {
$old_value = get_metadata($meta_type, $object_id, $meta_key);
if ( count($old_value) == 1 ) {
- if ( $old_value[0] == $meta_value )
+ if ( $old_value[0] === $meta_value )
return false;
}
}
$_meta_value = $meta_value;
- $meta_value = maybe_serialize( stripslashes_deep($meta_value) );
+ $meta_value = maybe_serialize( $meta_value );
$data = compact( 'meta_value' );
$where = array( $column => $object_id, 'meta_key' => $meta_key );
$id_column = 'user' == $meta_type ? 'umeta_id' : 'meta_id';
// expected_slashed ($meta_key)
$meta_key = stripslashes($meta_key);
- $meta_value = maybe_serialize( stripslashes_deep($meta_value) );
+ $meta_value = stripslashes_deep($meta_value);
+
+ $check = apply_filters( "delete_{$meta_type}_metadata", null, $object_id, $meta_key, $meta_value, $delete_all );
+ if ( null !== $check )
+ return (bool) $check;
+
+ $_meta_value = $meta_value;
+ $meta_value = maybe_serialize( $meta_value );
$query = $wpdb->prepare( "SELECT $id_column FROM $table WHERE meta_key = %s", $meta_key );
if ( !count( $meta_ids ) )
return false;
+ do_action( "delete_{$meta_type}_meta", $meta_ids, $object_id, $meta_key, $_meta_value );
+
$query = "DELETE FROM $table WHERE $id_column IN( " . implode( ',', $meta_ids ) . " )";
$count = $wpdb->query($query);
if ( 'user' == $meta_type )
clean_user_cache($object_id);
- do_action( "deleted_{$meta_type}_meta", $meta_ids, $object_id, $meta_key, $meta_value );
+ do_action( "deleted_{$meta_type}_meta", $meta_ids, $object_id, $meta_key, $_meta_value );
return true;
}
if ( !$object_id = absint($object_id) )
return false;
+ $check = apply_filters( "get_{$meta_type}_metadata", null, $object_id, $meta_key, $single );
+ if ( null !== $check ) {
+ if ( $single && is_array( $check ) )
+ return $check[0];
+ else
+ return $check;
+ }
+
$meta_cache = wp_cache_get($object_id, $meta_type . '_meta');
if ( !$meta_cache ) {
- update_meta_cache($meta_type, $object_id);
- $meta_cache = wp_cache_get($object_id, $meta_type . '_meta');
+ $meta_cache = update_meta_cache( $meta_type, array( $object_id ) );
+ $meta_cache = $meta_cache[$object_id];
}
- if ( ! $meta_key )
+ if ( !$meta_key )
return $meta_cache;
if ( isset($meta_cache[$meta_key]) ) {
$cache_key = $meta_type . '_meta';
$ids = array();
+ $cache = array();
foreach ( $object_ids as $id ) {
- if ( false === wp_cache_get($id, $cache_key) )
+ $cached_object = wp_cache_get( $id, $cache_key );
+ if ( false === $cached_object )
$ids[] = $id;
+ else
+ $cache[$id] = $cached_object;
}
if ( empty( $ids ) )
- return false;
+ return $cache;
// Get meta info
$id_list = join(',', $ids);
- $cache = array();
$meta_list = $wpdb->get_results( $wpdb->prepare("SELECT $column, meta_key, meta_value FROM $table WHERE $column IN ($id_list)",
$meta_type), ARRAY_A );
foreach ( $ids as $id ) {
if ( ! isset($cache[$id]) )
$cache[$id] = array();
+ wp_cache_add( $id, $cache[$id], $cache_key );
}
- foreach ( array_keys($cache) as $object)
- wp_cache_set($object, $cache[$object], $cache_key);
-
return $cache;
}
+/**
+ * Given a meta query, generates SQL clauses to be appended to a main query
+ *
+ * @since 3.1.0
+ * @access private
+ *
+ * @param array $meta_query List of metadata queries. A single query is an associative array:
+ * - 'key' string The meta key
+ * - 'value' string|array The meta value
+ * - 'compare' (optional) string How to compare the key to the value.
+ * Possible values: '=', '!=', '>', '>=', '<', '<=', 'LIKE', 'NOT LIKE', 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN'.
+ * Default: '='
+ * - 'type' string (optional) The type of the value.
+ * Possible values: 'NUMERIC', 'BINARY', 'CHAR', 'DATE', 'DATETIME', 'DECIMAL', 'SIGNED', 'TIME', 'UNSIGNED'.
+ * Default: 'CHAR'
+ *
+ * @param string $type Type of meta
+ * @param string $primary_table
+ * @param string $primary_id_column
+ * @param object $context (optional) The main query object
+ * @return array( 'join' => $join_sql, 'where' => $where_sql )
+ */
+function _get_meta_sql( $meta_query, $type, $primary_table, $primary_id_column, $context = null ) {
+ global $wpdb;
+
+ if ( ! $meta_table = _get_meta_table( $type ) )
+ return false;
+
+ $meta_id_column = esc_sql( $type . '_id' );
+
+ $join = '';
+ $where = '';
+ $i = 0;
+ foreach ( $meta_query as $q ) {
+ $meta_key = isset( $q['key'] ) ? trim( $q['key'] ) : '';
+ $meta_value = isset( $q['value'] ) ? $q['value'] : '';
+ $meta_compare = isset( $q['compare'] ) ? strtoupper( $q['compare'] ) : '=';
+ $meta_type = isset( $q['type'] ) ? strtoupper( $q['type'] ) : 'CHAR';
+
+ if ( ! in_array( $meta_compare, array( '=', '!=', '>', '>=', '<', '<=', 'LIKE', 'NOT LIKE', 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN' ) ) )
+ $meta_compare = '=';
+
+ if ( 'NUMERIC' == $meta_type )
+ $meta_type = 'SIGNED';
+ elseif ( ! in_array( $meta_type, array( 'BINARY', 'CHAR', 'DATE', 'DATETIME', 'DECIMAL', 'SIGNED', 'TIME', 'UNSIGNED' ) ) )
+ $meta_type = 'CHAR';
+
+ if ( empty( $meta_key ) && empty( $meta_value ) )
+ continue;
+
+ $alias = $i ? 'mt' . $i : $meta_table;
+
+ $join .= "\nINNER JOIN $meta_table";
+ $join .= $i ? " AS $alias" : '';
+ $join .= " ON ($primary_table.$primary_id_column = $alias.$meta_id_column)";
+
+ $i++;
+
+ if ( !empty( $meta_key ) )
+ $where .= $wpdb->prepare( " AND $alias.meta_key = %s", $meta_key );
+
+ if ( in_array( $meta_compare, array( 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN' ) ) ) {
+ if ( ! is_array( $meta_value ) )
+ $meta_value = preg_split( '/[,\s]+/', $meta_value );
+ } else {
+ $meta_value = trim( $meta_value );
+ }
+
+ if ( empty( $meta_value ) )
+ continue;
+
+ if ( 'IN' == substr( $meta_compare, -2) ) {
+ $meta_compare_string = '(' . substr( str_repeat( ',%s', count( $meta_value ) ), 1 ) . ')';
+ } elseif ( 'BETWEEN' == substr( $meta_compare, -7) ) {
+ $meta_value = array_slice( $meta_value, 0, 2 );
+ $meta_compare_string = '%s AND %s';
+ } elseif ( 'LIKE' == substr( $meta_compare, -4 ) ) {
+ $meta_value = '%' . like_escape( $meta_value ) . '%';
+ $meta_compare_string = '%s';
+ } else {
+ $meta_compare_string = '%s';
+ }
+
+ // @todo Temporary hack to support empty values. Do not use outside of core.
+ if ( '_wp_zero_value' == $meta_value )
+ $meta_value = 0;
+
+ $where .= $wpdb->prepare( " AND CAST($alias.meta_value AS {$meta_type}) {$meta_compare} {$meta_compare_string}", $meta_value );
+ }
+
+ return apply_filters_ref_array( 'get_meta_sql', array( compact( 'join', 'where' ), $meta_query, $type, $primary_table, $primary_id_column, &$context ) );
+}
+
+/**
+ * Populates the $meta_query property
+ *
+ * @access private
+ * @since 3.1.0
+ *
+ * @param array $qv The query variables
+ */
+function _parse_meta_query( &$qv ) {
+ $meta_query = array();
+
+ // Simple query needs to be first for orderby=meta_value to work correctly
+ foreach ( array( 'key', 'value', 'compare', 'type' ) as $key ) {
+ if ( !empty( $qv[ "meta_$key" ] ) )
+ $meta_query[0][ $key ] = $qv[ "meta_$key" ];
+ }
+
+ if ( !empty( $qv['meta_query'] ) && is_array( $qv['meta_query'] ) ) {
+ $meta_query = array_merge( $meta_query, $qv['meta_query'] );
+ }
+
+ $qv['meta_query'] = $meta_query;
+}
+
/**
* Retrieve the name of the metadata table for the specified object type.
*
* @since 2.9.0
* @uses $wpdb WordPress database object for queries.
*
- * @param string $meta_type Type of object to get metadata table for (e.g., comment, post, or user)
+ * @param string $type Type of object to get metadata table for (e.g., comment, post, or user)
* @return mixed Metadata table name, or false if no metadata table exists
*/
function _get_meta_table($type) {
return $wpdb->$table_name;
}
+
+/**
+ * Determine whether a meta key is protected
+ *
+ * @since 3.1.3
+ *
+ * @param string $meta_key Meta key
+ * @return bool True if the key is protected, false otherwise.
+ */
+function is_protected_meta( $meta_key, $meta_type = null ) {
+ $protected = ( '_' == $meta_key[0] );
+
+ return apply_filters( 'is_protected_meta', $protected, $meta_key, $meta_type );
+}
+
+/**
+ * Sanitize meta value
+ *
+ * @since 3.1.3
+ *
+ * @param string $meta_key Meta key
+ * @param mixed $meta_value Meta value to sanitize
+ * @param string $meta_type Type of meta
+ * @return mixed Sanitized $meta_value
+ */
+function sanitize_meta( $meta_key, $meta_value, $meta_type = null ) {
+ return apply_filters( 'sanitize_meta', $meta_value, $meta_key, $meta_type );
+}
+
?>
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