yii manage sub table's data in form - php

Question

I am working on YII framework, and I am a newbie.
I have user register form as shown below:
Username: [Textbox]
Email: [Textbox]
Address: [Text area]
User Loan Type: (Checkbox list as below)
Loan Type 1
Loan Type 2
Loan Type 3
Loan Type 4
Loan Type 5
Status [yes/no]
Now I have 3 models:
1) User (for user data)
2) LoanType (just for loan type list)
3) UserLoanType (mapping between user and loan type)
All 3 models have HAS_MANY and BELONGS_TO relations as we generally do in YII.
Now when user click on register button I want to save data in user_loan_type table as well. I can simply add core php logic in actionCreate. But is there any standard YII practice for this?? Because I need validation, remain form selected during edit etc. Can anyone guide me how to do this? Or point me any example link, I have googled but did't help.
Thanks.
I am able to save data in database,
Now during edit I want to retrieve 3rd table's(tbl_user_loan_request_type) data. I have used below code.
$user = User::model()->findByPk(5);
print_r($user->UserLoanTypes);
But it is giving me blank array.
Where I am wrong??

Answer 1

You may define afterSave methods in your class, like this:
Model User
public function relations()
{
return array(
'UserLoanTypes' => array(self::MANY_MANY, 'LoanType', 'UserLoanType(userId, loanId)'),
);
}
// relation
array('UserLoanTypes', 'safe'),
// label
'UserLoanTypes' => 'User Loan Type'
protected function afterSave()
{
parent::afterSave();
UserLoanType::model()->deleteAll('userId=:id', array(':id' => $this->id));
foreach ($this->UserLoanTypes as $loanId) {
$userLoanType = new UserLoanType();
$userLoanType->userId = $this->id;
$userLoanType->loadId = $loadId;
$userLoanType->save();
}
}
protected function afterDelete()
{
parent::afterDelete();
UserLoanType::model()->deleteAll('userId=:id', array(':id' => $this->id));
}
In form:
<div class="row">
<?php echo $form->labelEx($model,'UserLoanTypes'); ?>
<?php echo $form->checkBoxList($model,'UserLoanTypes', CHtml::listData($LoanTypes, 'id', 'loanName')); ?>
<?php echo $form->error($model,'UserLoanTypes'); ?>
</div>
In view you may:
<?php $this->widget('zii.widgets.CDetailView', array(
'data'=>$model,
'attributes'=>array(
'id',
'name',
'UserLoanTypes' => array(
'name' => 'UserLoanTypes',
'value' => implode(',', CHtml::listData($model->UserLoanTypes, 'id', 'name')),
),
),
)); ?>

Answer 2

If you don't need to assign multiple loanTypes to one User, it would be easier. All you need is the User model for the form visualization:
<?php $form = $this->beginWidget('CActiveForm', array(
'id'=>'user-form',
)); ?>
<?php echo $form->errorSummary($model); ?>
<div class="row">
<?php echo $form->labelEx($model,'Username'); ?>
<?php echo $form->textField($model,'Username'); ?>
<?php echo $form->error($model,'Username'); ?>
</div>
<div class="row">
<?php echo $form->labelEx($model,'Email'); ?>
<?php echo $form->textField($model,'Email'); ?>
<?php echo $form->error($model,'Email'); ?>
</div>
<div class="row">
<?php echo $form->labelEx($model,'Address'); ?>
<?php echo $form->textArea($model,'Address'); ?>
<?php echo $form->error($model,'Address'); ?>
</div>
<div class="row">
<?php echo $form->labelEx($model,'UserLoanType'); ?>
<?php echo $form->checkBoxList($model,'idLoanType', CHtml::listData(LoanType::model()->findAll, 'id', 'name')); ?>
<?php echo $form->error($model,'UserLoanTypes'); ?>
</div>
<?php $this->endWidget(); ?>