public function getPurchase($id)
 {
     $purchase_model = \App\Models\PurchaseModel::find($id);
     if (!$purchase_model) {
         // TODO: 404 - not found
     }
     return view('purchase.index');
 }
 public function postSave(Request $request)
 {
     $post_fields_arr = $request->all();
     $validator = \Validator::make($post_fields_arr, ['name' => 'required|max:255', 'description' => 'max:255', 'expiration_time' => 'required']);
     if ($validator->fails()) {
         return 'Невалидные данные';
     }
     $post_fields_arr['user_id'] = $this->user->id;
     if (isset($post_fields_arr['id'])) {
         $purchase_model = \App\Models\PurchaseModel::find($post_fields_arr['id']);
         if (!$purchase_model) {
             return 'Ошибка: нет закупки с таким ID - ' . $post_fields_arr['id'];
         }
         $purchase_model->name = $post_fields_arr['name'];
         $purchase_model->description = $post_fields_arr['description'];
         $purchase_model->save();
     } else {
         \App\Models\PurchaseModel::create($post_fields_arr);
     }
     return redirect('/seller/purchases');
 }
 /**
  * Возвращает коллекцию данных для построения "Таблицы цен"
  * @param $product_id
  * @param $purchase_id
  * @return array
  */
 public static function getPricingGridMixForProduct($product_id, $purchase_id)
 {
     /**
      * @var $product \App\BusinessLogic\Models\Product
      * @var $purchase \App\Models\PurchaseModel
      */
     $product = \App\BusinessLogic\Models\Product::find($product_id);
     $purchase = \App\Models\PurchaseModel::find($purchase_id);
     $pricing_grid_columns = $purchase->getPricingGridColumns()->get();
     $columns_ids_arr = [];
     foreach ($pricing_grid_columns as $column) {
         $columns_ids_arr[] = $column->id;
     }
     $product_prices = $product->prices($columns_ids_arr);
     $product_prices_unsorted = [];
     foreach ($product_prices as $product_price) {
         $product_prices_unsorted[$product_price->column_id] = $product_price->price;
     }
     $rows = [];
     foreach ($pricing_grid_columns as $column) {
         $rows[] = ['title' => $column->column_title, 'expiry_date' => date('d.m.Y H:i'), 'price' => $product_prices_unsorted[$column->id]];
     }
     return $rows;
 }
 /**
  * Удаление закупки
  */
 public function testRemovePurchase()
 {
     $this->assertGreaterThan(0, self::$purchase_id);
     \App\Models\PurchaseModel::destroy(self::$purchase_id);
     $purchase_model = \App\Models\PurchaseModel::find(self::$purchase_id);
     $this->assertNull($purchase_model);
 }
<div class="container">
    <div class="row">
        <div class="col-md-12">
            <div class="panel panel-default">
                <div class="panel-heading">Список заказов</div>

                {!! \App\Helpers\WidgetHelper::region('center_1') !!}

                <div class="panel-body">
                    @if(empty($purchases_ids_arr))
                        <h1>Заказов нет, сделайте свой первый заказ</h1>
                    @else
                    <div class="panel-group" id="orders-accordion" role="tablist" aria-multiselectable="true">
                    @foreach($purchases_ids_arr as $purchase_id)
                    <?php 
$purchase_model = \App\Models\PurchaseModel::find($purchase_id);
\App\Helpers\Assistant::assertModel($purchase_model);
?>
                        <div class="panel panel-default" id="purchasePanel-{{ $purchase_model->id }}">
                            <div class="panel-heading" role="tab" id="headingOne-{{ $purchase_model->id }}">
                                <h4 class="panel-title">
                                    <a role="button" data-toggle="collapse" data-parent="#orders-accordion" href="#collapseOne-{{ $purchase_model->id }}" aria-expanded="true" aria-controls="collapseOne-{{ $purchase_model->id }}" class="collapsed">
                                        <strong>{{ $purchase_model->name }}</strong>, товаров: {{ count($orders_models_arr_by_purchases_ids_arr[$purchase_id]) }}
                                    </a>
                                </h4>
                            </div>
                            <div id="collapseOne-{{ $purchase_model->id }}" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingOne-{{ $purchase_model->id }}" aria-expanded="true" style="height: 0px;">
                                <div class="panel-body">
                                    <table class="table">
                                        <thead>
                                        <tr>