Using filters with CGridView and CArrayDataProvider

To use filter in CArrayDataProvide we must specify our own model to handle the filter. This is the example

Model

/**
 * Filterform to use filters in combination with CArrayDataProvider and CGridView
 */
class FiltersForm extends CFormModel
{
    public $filters = array();
 
    /**
     * Override magic getter for filters
     */
    public function __get($name)
    {
        if(!array_key_exists($name, $this->filters))
            $this->filters[$name] = null;
        return $this->filters[$name];
    }
 
    /**
     * Filter input array by key value pairs
     * @param array $data rawData
     * @return array filtered data array
     */
    public function filter(array $data)
    {
        foreach($data AS $rowIndex => $row) {
            foreach($this->filters AS $key => $value) {
                // unset if filter is set, but doesn't match
                if(array_key_exists($key, $row) AND !empty($value)) {
                    if(stripos($row[$key], $value) === false)
                        unset($data[$rowIndex]);
                }
            }
        }
        return $data;
    }
}

Controller

// Create filter model and set properties
$filtersForm=new FiltersForm;
if (isset($_GET['FiltersForm']))
    $filtersForm->filters=$_GET['FiltersForm'];
 
// Get rawData and create dataProvider
$rawData=User::model()->findAll();
$dataProvider=new CArrayDataProvider($rawData);
 
// Render
$this->render('index', array(
    'filtersForm' => $filtersForm,
    'dataProvider' => $dataProvider,
));

View

$columns = array(
    array(
        'header'=>CHtml::encode('Name'),
        'name'=>'username',
        'value'=>'$data->username',
    ),
    array(
        'header'=>CHtml::encode('Organisation'),
        'name'=>'organisation',
        'value'=>'$data->organisation',
    ),
);
 
$this->widget('zii.widgets.grid.CGridView', array(
'id'=>'area-grid',
'dataProvider'=>$dataProvider,
    'columns'=>$columns,
    'filter'=>$filtersForm,
));

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