Getting error in Yii Multimodel Form - php

Question

I am a newbie to the Yii framework.I want a multimodel form so I just went through this link and made all things like this.I have two table, first is group and another is member.
Group
ID
name
Member
id
group_id
firstname
lastname
Now I have made models for both tables and CRUD as well.I made change to GroupController file like this
public function actionCreate()
{
$group = new Group;
$member = new Member;
if(isset($_POST['Group'],$_POST['Member'])) {
//Populate input data to $group and $member
$group->attributes = $_POST['Group'];
$member->attributes = $_POST['Member'];
//Validate both $group and $member
$validate = $group->validate();
$validate = $member->validate() && $valid;
if($valid){
$group->save(false);
$member->save(false);
}
}
$this->render('create',array(
'group'=> '$group',
'member'=> '$member',
));
$model=new Group;
// Uncomment the following line if AJAX validation is needed
// $this->performAjaxValidation($model);
if(isset($_POST['Group']))
{
$model->attributes=$_POST['Group'];
if($model->save())
$this->redirect(array('view','id'=>$model->id));
}
$this->render('create',array(
'model'=>$model,
));
}
and after changing the group >> View >> create.php file like this
<?php echo $this->renderPartial('_form', array('group'=>$group, 'member'=>$member)); ?>
The _form file is like this
<div class="form">
<?php $form=$this->beginWidget('CActiveForm', array(
'id'=>'group-form',
'enableAjaxValidation'=>false,
)); ?>
<p class="note">Fields with <span class="required">*</span> are required.</p>
<?php echo $form->errorSummary($group,$member); ?>
<div class="row">
<?php echo $form->labelEx($model,'name'); ?>
<?php echo $form->textField($model,'name'); ?>
<?php echo $form->error($model,'name'); ?>
</div>
<div class="row">
<?php echo $form->labelEx($member,'firstname'); ?>
<?php echo $form->textField($member,'firstname',array('size'=>60,'maxlength'=>128)); ?>
<?php echo $form->error($member,'firstname'); ?>
</div>
<div class="row buttons">
<?php echo CHtml::submitButton($model->isNewRecord ? 'Create' : 'Save'); ?>
</div>
<?php $this->endWidget(); ?>
</div><!-- form -->
but after all I am getting error like this Undefined variable: group .
So can some one please tell me how to solve this issue. I have lost one day behind this.So any help and suggestions will be highly appreciable.

Answer 1

You are doing multiple mistakes here ->
when you call
$this->render('create',array(
'model'=>$model,
));
you are not passing $group or $member models which you created in the group create controller. Change it to -
$this->render('create',array(
'group'=>$group,
'member'=>$member,
));
and secondly, there is no variable named $valid... change this part
$validate = $member->validate() && $valid;
if($valid){
to
$validate = $member->validate() && $validate;
if($validate){
now things should work fine