/** * @param Mana_Db_Model_Formula_Context $context * @param Mana_Db_Model_Formula_Node_Field $formula * @param Mana_Db_Model_Formula_Expr $expr */ public function selectField($context, $formula, $expr) { $expr->setIsFrontend(true)->setExpr("'{{= {$formula->__toString()} }}'")->setType('varchar(255'); }