How to use single form to collect data for two or more models (CActiveForm and Ajax Validation edition) Follow @yiiframework

With Yii you can use one CActiveForm for collecting data for two or more models with ajax validation and client validation.

According this article you can also create a form with ajax validation for both models.

You have two models $a and $b.

create.php

<?php $form = $this->beginWidget('CActiveForm', array(
    'id'=>'user-form',
    'enableAjaxValidation'=>true,
)); ?>
 
<?php echo $form->errorSummary(array($a,$b)); ?>
 
<div class="row">
    <?php echo $form->labelEx($a,'firstName'); ?>
    <?php echo $form->textField($a,'firstName'); ?>
    <?php echo $form->error($a,'firstName'); ?>
</div>
<div class="row">
    <?php echo $form->labelEx($b,'lastName'); ?>
    <?php echo $form->textField($b,'lastName'); ?>
    <?php echo $form->error($b,'lastName'); ?>
</div>
 
<?php $this->endWidget(); ?>

controller:

public function actionCreate()
{
    $a=new User;
    $b=new Info;
 
    $this->performAjaxValidation(array($a,$b));
    if(isset($_POST['User'],$_POST['Info']))
    {
        // populate input data to $a and $b
        $a->attributes=$_POST['User'];
        $b->attributes=$_POST['Info'];
 
        // validate BOTH $a and $b
        $valid=$a->validate();
        $valid=$b->validate() && $valid;
 
        if($valid)
        {
            // use false parameter to disable validation
            $a->save(false);
            $b->save(false);
 
            $this->redirect('index');
        }
    }
    $this->render('create',array('a'=>$a,'b'=>$b));
}
 
protected function performAjaxValidation($models)
{
    if(isset($_POST['ajax']) && $_POST['ajax']==='user-form')
    {
        echo CActiveForm::validate($models);
        Yii::app()->end();
    }
}

Thats all, now you have form with 2 models and ajaxValidation.

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Chinese version

Total 8 comments

#9572

jonghwa at 2012/08/23 09:24pm

FK has a temporary value.

I modified that FK has a temp value in order to pass validity check.

It will rollback as deleting a record of the referenced table if fails to save a record of the referencing table.

It seems to work fine.

$user=new User('register');
                $profile=new UserProfile('create');
 
                if(isset($_POST['User'])&&isset($_POST['UserProfile']))
                {
                        $user->attributes=$_POST['User'];
 
                        // FK user_id has a temporary value as zero to validate
                        $profile->user_id=0;
                        $profile->attributes=$_POST['UserProfile'];
 
                        if($user->validate()&&$profile->validate())
                        {
                                if($user->save())
                                {
                                        // FK now has a proper value.
                                        $profile->user_id=$user->id;
 
                                        if($profile->save())
                                                $this->redirect(array('site/index'));
                                        else
                                                // rollback if fails to save profile
                                                $user->delete();
                                }
                        }
                }

#5410

resurtm at 2011/10/10 07:59am

Fixed

@mdomba, fixed.

#5409

Maurizio Domba at 2011/10/10 07:50am

saving not good

if($a->save() && $b->save())

is not good because if for any reason ajax validation pass and then the validation at $b-save() fails the $a record will be saved.

Take a look at the original article for validating / saving the data.

#4582

RusAlex at 2011/07/22 02:02am

@el chief

yes, it's a simple ideal way to save data. you need to write your own validation process.

#4581

redguy at 2011/07/22 01:22am

@el chief

@el chief: now is also ok. Earlier there was reference to not declared variable: $model.

#4578

el chief at 2011/07/21 04:09pm

comment

@rusalex, you should probably use a transaction, otherwise if one model->save() fails, you might have some dangling models

@redguy, did you test it? errorSummary can accept an array of models

also note that isset() does and AND, not an OR

#4559

yiqing95 at 2011/07/20 01:27pm

great article , learn some new skills!

i never known that isset() function can accepts more than one parameters util seen this article :D; and found that : CActiveForm::validate($models); the validate function can give many models ; well done!

#4554

redguy at 2011/07/20 09:14am

error summary

I think this:

echo $form->errorSummary($model);

should be changed to something like:

echo $form->errorSummary($a);
echo $form->errorSummary($b);

or the validation will not work...

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How to use single form to collect data for two or more models (CActiveForm and Ajax Validation edition) Follow @yiiframework

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