Yii model not getting posted - php

Question

I have this weird issue where the values seems to get posted on form submit but still there the controller seems to not find it. I am saving three models with a single form. Both the relations to the main model are HAS_MANY. Here's the controller.
$model=$this->loadModel($id);
$modelunitgroup = $model->userUnitgroups;
$modelunit = $model->userUnits;
if(isset($_POST['User'], $_POST['Userunitgroup'], $_POST['Userunit']))
{
$model->attributes=$_POST['User'];
$modelunit->attributes=$_POST['Userunitgroup'];
$modelunitgroup->attributes=$_POST['Userunit'];
$valid=$model->validate();
if($valid)
{
if($model->save(false))
{
$modelunitgroup->user_id = $model->id;
$modelunit->user_id = $model->id;
if ($modelunitgroup->save() && $modelunit->save())
{
Yii::app()->user->setFlash('success', "User updated!");
$this->redirect(array('view','id'=>$model->id));
}
}
}
}
$this->render('update',array(
'model'=>$model,
'modelunitgroup'=>$modelunitgroup,
'modelunit'=>$modelunit,
));
Here's the relations
'userUnitgroups' => array(self::HAS_MANY, 'Userunitgroup', 'user_id'),
'userUnits' => array(self::HAS_MANY, 'Userunit', 'user_id'),
And the form view
<?php echo $form->errorSummary($model); ?>
<?php echo $form->dropDownListRow($model, 'title', $model->getUtitle(),array('prompt' => 'Select ...'));?>
<?php echo $form->textFieldRow($model,'firstname',array('class'=>'span5','maxlength'=>60)); ?>
<?php echo $form->textFieldRow($model,'lastname',array('class'=>'span5','maxlength'=>60)); ?>
<?php echo $form->textFieldRow($model,'mobile',array('class'=>'span5')); ?>
<?php echo $form->textFieldRow($model,'email',array('class'=>'span5','maxlength'=>160)); ?>
<?php echo $form->passwordFieldRow($model,'password',array('class'=>'span5','maxlength'=>32)); ?>
<?php
foreach ($modelunitgroup as $mgroup) {
echo $form->dropDownListRow($mgroup,
'unitgroup',
$model->getUnitgroups(),
array(
'ajax' => array(
'type'=>'POST',
'url'=>CController::createUrl('user/getunit'),
'update'=>'#Userunit_unit',
)));
}
foreach ($modelunit as $munit) {
echo $form->dropDownListRow($munit,
'unit',
array()
);
}
?>
I keep getting the error "Attempt to assign property of non-object". It seems that the 'Userunitgroup' and 'Userunit' are never posted, which is weird cause I checked the header in Firefox and all the values are correctly being posted. Any help on what may be causing this and how to solve this?

Answer 1

$modelUnitGroup and $modelunit are arrays, yet you are assigning attributes like they are individual models (objects). For more information on how to do batch inserts/updates consult the manual.

Answer 2

I think you have a problem in your models rules in your scenario, in your model class:
public function rules() {
array('title ,name, country, ..., password', 'safe', 'on'=>'thisCustomeScenario'),
...
}
and try to var_dump($_POST) to see what exactly your getting