Changeset 16266 for trunk/wp-includes/class-wp-object-query.php
- Timestamp:
- 11/09/2010 11:22:13 PM (14 years ago)
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
trunk/wp-includes/class-wp-object-query.php
r16170 r16266 70 70 71 71 $qv['meta_query'] = $meta_query; 72 }73 74 /*75 * Used internally to generate an SQL string for searching across multiple meta key = value pairs76 *77 * @access protected78 * @since 3.1.079 *80 * @param array $meta_query List of metadata queries. A single query is an associative array:81 * - 'key' string The meta key82 * - 'value' string|array The meta value83 * - 'compare' (optional) string How to compare the key to the value.84 * Possible values: '=', '!=', '>', '>=', '<', '<=', 'LIKE', 'NOT LIKE', 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN'.85 * Default: '='86 * - 'type' string (optional) The type of the value.87 * Possible values: 'NUMERIC', 'BINARY', 'CHAR', 'DATE', 'DATETIME', 'DECIMAL', 'SIGNED', 'TIME', 'UNSIGNED'.88 * Default: 'CHAR'89 *90 * @param string $meta_type91 * @param string $primary_table92 * @param string $primary_id_column93 * @return array( $join_sql, $where_sql )94 */95 function get_meta_sql( $meta_query, $meta_type, $primary_table, $primary_id_column ) {96 global $wpdb;97 98 if ( ! $meta_table = _get_meta_table( $meta_type ) )99 return false;100 101 $meta_id_column = esc_sql( $meta_type . '_id' );102 103 $clauses = array();104 105 $join = '';106 $where = '';107 $i = 0;108 foreach ( $meta_query as $q ) {109 $meta_key = isset( $q['key'] ) ? trim( $q['key'] ) : '';110 $meta_value = isset( $q['value'] ) ? $q['value'] : '';111 $meta_compare = isset( $q['compare'] ) ? strtoupper( $q['compare'] ) : '=';112 $meta_type = isset( $q['type'] ) ? strtoupper( $q['type'] ) : 'CHAR';113 114 if ( ! in_array( $meta_compare, array( '=', '!=', '>', '>=', '<', '<=', 'LIKE', 'NOT LIKE', 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN' ) ) )115 $meta_compare = '=';116 117 if ( 'NUMERIC' == $meta_type )118 $meta_type = 'SIGNED';119 elseif ( ! in_array( $meta_type, array( 'BINARY', 'CHAR', 'DATE', 'DATETIME', 'DECIMAL', 'SIGNED', 'TIME', 'UNSIGNED' ) ) )120 $meta_type = 'CHAR';121 122 if ( empty( $meta_key ) && empty( $meta_value ) )123 continue;124 125 $alias = $i ? 'mt' . $i : $meta_table;126 127 $join .= "\nINNER JOIN $meta_table";128 $join .= $i ? " AS $alias" : '';129 $join .= " ON ($primary_table.$primary_id_column = $alias.$meta_id_column)";130 131 $i++;132 133 if ( !empty( $meta_key ) )134 $where .= $wpdb->prepare( " AND $alias.meta_key = %s", $meta_key );135 136 if ( in_array( $meta_compare, array( 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN' ) ) ) {137 if ( ! is_array( $meta_value ) )138 $meta_value = preg_split( '/[,\s]+/', $meta_value );139 } else {140 $meta_value = trim( $meta_value );141 }142 143 if ( empty( $meta_value ) )144 continue;145 146 if ( 'IN' == substr( $meta_compare, -2) ) {147 $meta_field_types = substr( str_repeat( ',%s', count( $meta_value ) ), 1 );148 $meta_compare_string = "($meta_field_types)";149 unset( $meta_field_types );150 } elseif ( 'BETWEEN' == substr( $meta_compare, -7) ) {151 $meta_value = array_slice( $meta_value, 0, 2 );152 $meta_compare_string = '%s AND %s';153 } elseif ( 'LIKE' == substr( $meta_compare, -4 ) ) {154 $meta_value = '%' . like_escape( $meta_value ) . '%';155 $meta_compare_string = '%s';156 } else {157 $meta_compare_string = '%s';158 }159 $where .= $wpdb->prepare( " AND CAST($alias.meta_value AS {$meta_type}) {$meta_compare} {$meta_compare_string}", $meta_value );160 161 unset( $meta_compare_string );162 }163 164 return apply_filters( 'get_meta_sql', compact( 'join', 'where' ), $meta_query, $meta_type, $primary_table, $primary_id_column );165 72 } 166 73
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