是否有可能创建依赖于选择的模型规则?
我有一个"存款"模型，用于输入汇款详细信息，我有一个下拉列表，有两个可能的选择"现金转账"，"支票转账"，我有字段cash_deposit_date,bank_name..只需要现金转账和checke_date, checke_no和in_favor_of。这只在支票转账时需要。我该怎么做呢?
我知道我可以使用这样的场景，
$model=new Deposit("cash_transfer");
或
$model=new Deposit("cheque_transfer");
但是我如何根据下拉列表中选择的值更改场景?
你就不能这样做吗:
生成的HTML:
<form>
....
<select name="scenario">
<option value="cash_transfer">Cash Transfer</option>
<option value="cheque_transfer">Checque Transfer</option>
</select>
....
</form>
// allow only lowercase letters and underscore
$scenario = preg_replace('/[^a-z_]/', '', $_POST['scenario']);
if (!empty($scenario)) {
$model = new Deposit($scenario);
} else {
die('Missing scenario!');
}
从jupaju答案延伸，
下拉列表也是一个模型字段(transfer_type)，所以我做了这样的事情。检查POST值设置后，使用$model->scenario = $model->transfer_type==1 ? 'cash_transfer':'cheque_transfer'更改场景
我的代码是
$model=new Deposit;
// Uncomment the following line if AJAX validation is needed
// $this->performAjaxValidation($model);
if(isset($_POST['Deposit']))
{
$model->attributes=$_POST['Deposit'];
$model->scenario = $model->transfer_type==1 ? 'cash_transfer':'cheque_transfer';
if($model->save())
$this->redirect(array('admin'));
}
$this->render('create',array('model'=>$model));
我认为最好的方法是在你的模型中使用个性化的验证规则，然后检查模型的"scenario"属性是否被设置为一个或另一个选项。
你可以在这里阅读更多关于自定义验证规则
希望这对你有帮助。好运！
这样比较简单
在你的模型中放:
public $pay_type;
/**
* @return array validation rules for model attributes.
*/
public function rules()
{
// NOTE: you should only define rules for those attributes that
// will receive user inputs.
return array(
...
array('pay_type', 'required'),
array('cash_deposit_date', 'validationTransfer'),
...
);
}
public function validationTransfer($attribute,$params)
{
// this a sample, put all your need
if($this->pay_type=='cash_transfer' and $this->cash_deposit_date==='')
$this->addError('cash_deposit_date','If you will pay to Cash Transfer, enter your cahs deposit date');
// this a sample, put all your need
if($this->pay_type=='cheque_transfer' and $this->cheque_date==='')
$this->addError('cheque_date','If you will pay to Cheque Transfer, enter your cheque date');
// this a sample, put all your need
if($this->pay_type=='cheque_transfer' and $this->cheque_no==='')
$this->addError('cheque_no','If you will pay to Cheque Transfer, enter your Cheque No');
}
<?php echo $form->labelEx($model,'pay_type',array('class'=>'control-label')); ?>
<?php echo $form->dropDownList($model,'pay_type',array("cash_transfer"=>"Cash Transfer","cheque_transfer"=>"Cheque Transfer"),array('class'=>'form-control','empty'=>'Pay Type...')); ?>
<?php echo $form->error($model,'pay_type',array('class'=>'help-block')); ?>