Yii2 Modify find() Method in Model search() - search

Question

I am trying to modify the find() method inside the model search and it throws an error "The data provider property must be set".
Here is my search model:
public function search($params)
{
$userID = Yii::$app->user->identity->id;
$groups = GroupAccess::find()
->where(['user_id' => $userID, 'item_name' => 'group_creator'])
->asArray()
->all();
foreach ($groups as $group) {
$accessGroups[] = $group['group_id'];
}
$query = Group::find($accessGroups);
$dataProvider = new ActiveDataProvider([
'query' => $query,
]);
$this->load($params);
if (!$this->validate()) {
// uncomment the following line if you do not want to any records when validation fails
// $query->where('0=1');
return $dataProvider;
}
$query->andFilterWhere([
'id' => $this->id,
'status_id' => $this->status_id,
//'created_user_id' => $this->created_user_id,
'created_date' => $this->created_date,
'profile_updated_user_id' => $this->profile_updated_user_id,
'profile_updated_date' => $this->profile_updated_date,
'last_accessed_user_id' => $this->last_accessed_user_id,
'last_accessed_date' => $this->last_accessed_date,
]);
$query->andFilterWhere(['like', 'name', $this->name])
->andFilterWhere(['like', 'description', $this->description]);
return $dataProvider;
}
And here is my controller action:
$searchModel = new GroupSearch();
$dataProvider = $searchModel->search(Yii::$app->request->queryParams);
if (Yii::$app->request->isPjax) {
return $this->renderAjax('groups', [
'searchModel' => $searchModel,
'dataProviderMine' => $dataProvider,
]);
} else {
return $this->render('groups', [
'searchModel' => $searchModel,
'dataProviderMine' => $dataProvider,
]);
}
}
It is important to refine the query as the user should be able to see other groups.
How can i modify the find() method properly?
Thanks.

Answer 1

I see two bugs here:
Your find method
$query = Group::find($accessGroups)
will not work - just replace it with
$query = Group::find()->where(['id' => $accessGroups]);
I guess "The data provider property must be set" error is caused by your view code. E.g. if you are using GridView, you should set its 'dataProvider' widget option:
GridView::widget([
'dataProvider' => $dataProviderMine,
'searchModel' => $searchModel,
'columns' => [
'id', 'status_id', 'created_date' // your view columns here
]
])
Consider also using sub queries in your search method:
$idAccessQuery = GroupAccess::find()
->where(['user_id' => $userID, 'item_name' => 'group_creator'])
->select('group_id');
$query = Group::find()->where([
'id' => $idAccessQuery
]);