PHP Error: "Object of class Group could not be converted to int" WHEN i try to use CHtml

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1

people, i have been tryed to use CHtml to generate HTML componentes in a scenario that I have a MANY_TO_MANY relation.

it works




    	<?php

    	 foreach($model->groups as $index => $oGroup)

    	 {

    	 	print( $oGroup->name ) . "<br>";

    	 }


    	?>

it doesn’t work




<?php

$data = CHtml::listData($model->groups, 'id','name');

print_r($data);


echo CHtml::activeListBox($model,'groups',$data );

?>

and I get this error




PHP Error

Description


Object of class Group could not be converted to int

bellow is User’s relations method




	public function relations()

	{

		// NOTE: you may need to adjust the relation name and the related

		// class name for the relations automatically generated below.

		return array(

			'posts'  => array ( self::HAS_MANY, 'Post', 'authorId'),

			'groups' => array ( self::MANY_MANY, 'Group', 'UserGroup(userId, groupId)',

				'together'=>true,

				'joinType'=>'INNER JOIN'),		


		);

	}

im not being able to show in an activeCheckBoxList all groups of a User. that’s the question.

Any ideas?

2

does anybody have any solution, plz?

3

It doesn’t work because in activeListBox(), the second parameter should be an attribute name, not a relation name. In your case, you may need to declare a new property to store the selections.

4

hi qiang.

im sorry, I could let it works but i still not being able to get the result what i expect.

I did what you said, that is i’ve put the following fragment inside User model


	

private $groups;

	

	/**

	 * @return string the associated database table name

	 */

	public function getGroups()

	{

		return $this->groups;

	}

this is the action’s code




	public function actionAdmin()

	{

		$this->processAdminCommand();


		$criteria=new CDbCriteria;


		$pages=new CPagination(User::model()->count($criteria));

		$pages->pageSize=self::PAGE_SIZE;

		$pages->applyLimit($criteria);


		$sort=new CSort('User');

		$sort->applyOrder($criteria);


		$models=User::model()->findAll($criteria);


		$this->render('admin',array(

			'models'=>$models,

			'pages'=>$pages,

			'sort'=>$sort,

		));

	}

this is a view’s fragment code




<table class="dataGrid">

<?php foreach($models as $n=>$model): ?>

   <tr class="<?php echo $n%2?'even':'odd';?>">    

    <th><?php echo $sort->link('Groups'); ?></th>

    <td>

   

		<?php

		$data = CHtml::listData($model->groups, 'id','name');

		//$arrGroups  = Group::model()->CategoryActive();

		

		$arrGroups = array('checked'=>CHtml::listData($model->groups,'id','name'));

		//print_r($arrGroups);

		print_r($data);

		//$allowedCategories  = array('key1'=>'val1', ...);

		echo CHtml::activeCheckBoxList(Group::model(),'id',$data );

		echo CHtml::activeCheckBoxList($model,Group::model()->findAll(),$data );

		?>    	

	</td>

  </tr>


<?php endforeach; ?>

</table>

both of the echo above work, but I didn’t understand yet how to apply the simple requirement.

I’d like to show all available Groups, and I wanna check just the groups that the current user belongs to.

5

hi Qiang,

i have fixed the problem, but to do that i had to take a look at the framework code in order to understand better how the component works.

but i was unable to make activeCheckBoxList working, so i chose CheckBoxList instead because it was enough to me.

that’s why i posted the following item in the forum.

http://www.yiiframework.com/forum/index.php?/topic/3543-a-suggestion-for-yii-documentation/page__p__19200__fromsearch__1&#entry19200

6

i have the same issue here, can you please post a sample code on how to do this, will this property return an array with the associated keys??

7

how? could you post it?