yii CGridView dispaly data from relative tbls - php

Question

I have a small problem. I created user CGridView which is relationship with company and department.
Error : company name is display in the grid view. but department name is not display in gridview.
When I uncomment 'value'=>....., "Trying to get property of non-object" show.
This model relation
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(
'ranks' => array(self::BELONGS_TO, 'Rank', 'rank_id'),
'companies' => array(self::BELONGS_TO, 'Company', 'company_id'),
'departments' => array(self::BELONGS_TO, 'Department', 'department_id'),
'departmentsdep' => array(self::BELONGS_TO, 'Department', 'department_id'),
'departmentssec' => array(self::BELONGS_TO, 'Department', 'section_id'),
'departmentstea' => array(self::BELONGS_TO, 'Department', 'team_id'),
);
}
this is gridview
<?php $this->widget('zii.widgets.grid.CGridView', array(
'id'=>'user-grid',
'dataProvider'=>$model->search(),
'filter'=>$model,
'columns'=>array(
'login_name',
'first_name',
'last_name',
'email',
array(
'name' => 'company_id',
'value'=>'$data->companies->name',
'filter'=>CHtml::listData($companylist, 'id', 'name'),
),
array(
'name' => 'department_id',
//'value'=>'$data->departmentsdep->name',
'filter' =>
CHtml::listData(
is_numeric($model->company_id) ? Department::model()->findAll(new CDbCriteria(array(
'condition' => 'p_id = 0 AND company_id=:company_id',
'params' => array(':company_id' => $model->company_id),
))) : $department, 'id', 'name'),
),
array(
'name' => 'section_id',
//'value'=>'$data->departmentssec->name',
'filter' =>
CHtml::listData(
is_numeric($model->department_id) ? Department::model()->findAll(new CDbCriteria(array(
'condition' => 'p_id = :pid AND company_id=:company_id',
'params' => array(':company_id' => $model->company_id, ':pid'=>$model->department_id),
))) : $department, 'id', 'name'),
),
array(
'name' => 'team_id',
//'value'=>'$data->departmentstea->name',
'filter' =>
CHtml::listData(
is_numeric($model->department_id) ? Department::model()->findAll(new CDbCriteria(array(
'condition' => 'p_id = :pid AND company_id=:company_id',
'params' => array(':company_id' => $model->company_id, ':pid'=>$model->section_id),
))) : $department, 'id', 'name'),
),
array(
'class'=>'CButtonColumn',
),
),
)); ?>
How can I solve this error

Answer 1

This is my solution
'value' => '($data->department_id == 0) ? "" : $data->departmentsdep->name',
full code
array(
'name' => 'department_id',
'value' => '($data->department_id == 0) ? "" : $data->departmentsdep->name',
'filter' =>
CHtml::listData(
is_numeric($model->company_id) ? Department::model()->findAll(new CDbCriteria(array(
'condition' => 'p_id = 0 AND company_id=:company_id',
'params' => array(':company_id' => $model->company_id),
))) : $department, 'id', 'name'),
),

Answer 2

You can access relations using a '.' to sign a relation. It would be much easier this way:
<?php $this->widget('zii.widgets.grid.CGridView', array(
'id'=>'user-grid',
'dataProvider'=>$model->search(),
'filter'=>$model,
'columns'=>array(
'login_name',
'first_name',
'last_name',
'email',
array(
'name' => 'companies.name',
'filter'=>CHtml::listData($companylist, 'id', 'name'),
),
...