Data from two function in one column in gridview yii2 - yii2

Question

In model there is two fuctions
public function getItemsOrder(){
return $this->hasMany(OrderItems::className(), ['order_id' => 'order_id']);
}
public function getOrderInfo(){
return $this->hasMany(OrderItemsOffer::className(), ['order_items_id' => 'order_items_id'])
->viaTable('order_items', ['order_id' => 'order_id']);
}`
Table orderhas order_id, table order_items has order_id and order_items_id, table order_items_offer has order_items_id and order_items_offer_name. One order_id can have many order_items_id. Table order_items also has order_items_quantity.
I can get quantity of order_items with first function. And name of all order_items with second function, like this
[
'value' => function ($data) {
$summ = 0;
$str = 0;
foreach($data->itemsOrder as $request) {
$str .= $request->order_items_quantity;
$summ += $str;
}
return $summ;
},
],
['value' => function($data){
$sum = '';
foreach ($data->orderInfo as $request){
$str = ($request->order_items_offer_name);
$sum .= $str.',';
}
return $sum ;
}],
How could I get this data in one column, like 'FirstItem 2 piece, SecondItem 3 piece'?

Answer 1

Maybe someone helps, create in OrderItems
public function getOrderInfo(){
return $this->hasOne(OrderItemsOffer::className(), ['order_items_id' => 'order_items_id']);
}
In view
[
'value' => function ($data) {
$summ = 0;
$str = '';
foreach($data->itemsOrder as $request) {
$summ = $request->order_items_quantity;
$str .= (strlen($str))?', ': '';
$str .= $request->orderInfo->order_items_offer_name.' '.$summ.'шт.';
}
return $str;
},
],