Yii2 Combine 2 unrelated models with some shared properties into one Gridview - php

Question

I have 2 separate models (for 2 separate tables) containing some similar properties, which I want to combine into one GridView. The models are unrelated.
Model 1:
+----+------+----------------+-----+
| id | name | email | age |
+----+------+----------------+-----+
| 1 | Bob | bob#bob.bob | 22 |
| 2 | Ross | ross#ross.ross | 24 |
+----+------+----------------+-----+
Model 2:
+----+-------+-----------------+----------+-----------+
| id | name | email | location | Interests |
+----+-------+-----------------+----------+-----------+
| 1 | Mr | mr#mr.mr | Middle | Computers |
| 2 | Robot | robot#robot.bot | Nowhere | Hacking |
+----+-------+-----------------+----------+-----------+
I want to export the following data to a CSV (using kartik/Grid/Gridview/ExportMenu), which works similarly to a GridView:
+----+-------+-----------------+----------+-----+-----------+
| id | name | email | Location | Age | Interests |
+----+-------+-----------------+----------+-----+-----------+
| 1 | Mr | mr#mr.mr | Middle | | Computers |
| 2 | Robot | robot#robot.bot | Nowhere | | Hacking |
| 3 | Bob | bob#bob.bob | | 22 | |
| 4 | Ross | ross#ross.ross | | 24 | |
+----+-------+-----------------+----------+-----+-----------+
The export widget works the same as a CGridView. You supply a dataProvider (could have pagination) and the exported CSV contains all rows.
Currently I'm using Search models to return 2 ActiveDataProviders, and then I combine them with ArrayDataProvider:
$searchModel = new RegisteredUserSearch([$argumentsArray1]);
$dataProvider1 = $searchModel->search(Yii::$app->request->queryParams);
$dataProvider1->pagination = ['pageSize' => 12];
$collectedEmailSearchModel = new CollectedEmailSearch([$argumentsArray2]);
$dataProvider2 = $collectedEmailSearchModel->search(Yii::$app->request->queryParams);
$dataProvider2->pagination = ['pageSize' => 12];
$data = array_merge($dataProvider1->getModels(), $dataProvider2->getModels());
$dataProvider = new ArrayDataProvider([
'allModels' => $data,
'pagination'=>[
'pageSize'=> 0
]
]);
Using $dataProvider1 or $dataProvider2 as the GridView's dataProvider works fine, but using the combined $dataProvider results in exporting only 24 rows. I tried changing the pageSize of the dataProviders to 0, but that doesn't appear to make a difference.

Answer 1

You can make relationship between models on same email. For example
In Model1.php you must define relationship in this case by same email
public function getSameEmail()
{
return $this->hasOne(Model2::className(),['email'=>'email']);
}
To display in grid view values from other table you must join it in searchModel1.php file. You are joining tables by same email.
after validation you can add relationship you define to query. Like this
$query->joinWith('sameEmail');
And you will get values of columns from another table. Be careful with columns with same name.