/** * Compiles an array of set values into an SQL partial. Used for UPDATE. * * @param object $db Alt_Database instance * @param array $values updated values * @return string */ protected function _compile_set(Alt_Database $db, array $values) { $set = array(); foreach ($values as $group) { // Split the set list($column, $value) = $group; // Quote the column name $column = $db->quote_column($column); if ((is_string($value) and array_key_exists($value, $this->_parameters)) === FALSE) { // Quote the value, it is not a parameter $value = $db->quote($value); } $set[$column] = $column . ' = ' . $value; } return implode(', ', $set); }