適用於很多領域的CakePHP驗證陣列

Question

在蛋糕模型中，我有6個字段都具有相同的驗證規則。有沒有辦法將此規則分配給所有6個字段，而不必複製粘貼數組？

E.g.

public $currency_validate = array(
     'rule1'=>array(
      'rule' => array('comparison', '>=', 0), 
      'message' => 'Must be between 0 and 1' 
      ), 
     'rule2' => array(
      'rule' => array('comparison', '<=', 1), 
      'message' => 'Must be between 0 and 1' 
      ) 
     ); 
public $validate = array(
      'usd' => $this->currency_validate, 
      'gbp' => $this->currency_validate, 
      'eur' => $this->currency_validate, 
      //etc 
     ); 

由於不允許動態分配類中的屬性，因此不起作用。

Answer 1

您可以添加規則到beforeValidate（數組$選項=陣列（））方法：

public $currency_validate = array(
    'rule1'=>array(
     'rule' => array('comparison', '>=', 0), 
     'message' => 'Must be between 0 and 1' 
     ), 
    'rule2' => array(
     'rule' => array('comparison', '<=', 1), 
     'message' => 'Must be between 0 and 1' 
     ) 
    ); 
public $validate = array(
     'usd' => array(), 
     'gbp' => array(), 
     'eur' => array(), 
     //etc 
    ); 

public function beforeValidate(array $options = array()) { 
    $this->validate = array(
     'usd' => $this->currency_validate, 
     'gbp' => $this->currency_validate, 
     'eur' => $this->currency_validate, 
     //etc 
    ); 
    return true; //otherwise the current save() execution will abort 
}