Hello,
A have a question regarding why CGridView’s search doesn’t work w/ hasMany relationship.
I built an example database w/ 2 tables.
Student —< Course
STUDENT
-
id
-
name
COURSE
-
id
-
name
-
student_id (FK:w/ STUDENT.id)
[b]on STUDENT[/b]
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(
'course' => array(self::HAS_MANY, 'Course', 'student_id'),
);
}
[b]on COURSE[/b]
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(
'student' => array(self::BELONGS_TO, 'Student ', 'student_id'),
);
}
in admin.php of COURSE (//localhost/demo2/course/admin) I have the following code
<?php $this->widget('zii.widgets.grid.CGridView', array(
'id'=>'materia-grid',
'dataProvider'=>$model->search(),
'filter'=>$model,
'columns'=>array(
'id',
'name',
array(
'name' => 'student.name',
'value'=>'$data->student->name',
),
array(
'class'=>'CButtonColumn',
),
),
)); ?>
While the information gets shown correctly, the search filter gets omitted for this field.
I tried a different approach to get around this, but I feel it is not the best of solutions.
<?php $this->widget('zii.widgets.grid.CGridView', array(
'id'=>'materia-grid',
'dataProvider'=>$model->search(),
'filter'=>$model,
'columns'=>array(
'id',
'name',
array(
'name' => 'student_id',
'value'=>'$data->student->name',
'filter' => $model->getStudent() ,
),
array(
'class'=>'CButtonColumn',
),
),
)); ?>
where $model->getStudent is a function that returns a key/value array (IE. array(1 => ‘Joe’, 2 => ‘Tom’, 3=>‘Mary’) 
This produces a DropDownList on search (which works fine). Unfortunatly when there is to much data, this is not an elegant solution.
I would like to know a way to have a textbox field w/ search capabilities over Student.name (hasMany relationship).
Thanks