diff --git a/device-app/app/Http/Controllers/PurchasingInformationController.php b/device-app/app/Http/Controllers/PurchasingInformationController.php
index ead94c3..0602f3b 100644
--- a/device-app/app/Http/Controllers/PurchasingInformationController.php
+++ b/device-app/app/Http/Controllers/PurchasingInformationController.php
@@ -2,6 +2,7 @@
 
 namespace App\Http\Controllers;
 
+use App\Models\Device;
 use App\Models\PurchasingInformation;
 use Illuminate\Http\Request;
 
@@ -26,12 +27,12 @@ public function store(Request $request)
         return redirect('/');
     }
 
-    public function edit(PurchasingInformation $purchasing)
+    public function edit(Device $device)
     {
-        return view('purchasings.edit', ['purchasing' => $purchasing]);
+        return view('purchasings.edit', ['purchasing' => $device->purchasing]);
     }
 
-    public function update(PurchasingInformation $purchasing, Request $request)
+    public function update(Device $device, Request $request)
     {
         $formFields = $request->validate([
             'price' => 'required',
@@ -40,9 +41,9 @@ public function update(PurchasingInformation $purchasing, Request $request)
             'cost_centre' => 'required',
         ]);
 
-        $purchasing->update($formFields);
+        $device->purchasing->update($formFields);
 
-        return back();
+        return redirect('/');
     }
 
     public function destroy(PurchasingInformation $purchasing)
diff --git a/device-app/resources/views/devices/create.blade.php b/device-app/resources/views/devices/create.blade.php
index ac3b96f..428d877 100644
--- a/device-app/resources/views/devices/create.blade.php
+++ b/device-app/resources/views/devices/create.blade.php
@@ -11,43 +11,43 @@
         <br /-->
         <label for="title">Title:</label>
         <input type="text" id="title" name="title" value="{{old('title')}}" required>
-        @error('device_id')
+        @error('title')
             <p>{{$message}}</p>
         @enderror
         <br />
         <label for="device_type">device_type:</label>
         <input type="text" id="device_type" name="device_type" value="{{old('device_type')}}" required>
-        @error('device_id')
+        @error('device_type')
             <p>{{$message}}</p>
         @enderror
         <br />
         <label for="accessories">accessories:</label>
         <input type="text" id="accessories" name="accessories" value="{{old('accessories')}}">
-        @error('device_id')
+        @error('accessories')
             <p>{{$message}}</p>
         @enderror
         <br />
         <label for="rz_username_buyer">rz_username_buyer:</label>
         <input type="text" id="rz_username_buyer" name="rz_username_buyer" value="{{old('rz_username_buyer')}}" required>
-        @error('device_id')
+        @error('rz_username_buyer')
             <p>{{$message}}</p>
         @enderror
         <br />
         <label for="serial_number">serial_number:</label>
         <input type="text" id="serial_number" name="serial_number" value="{{old('serial_number')}}" required>
-        @error('device_id')
+        @error('serial_number')
             <p>{{$message}}</p>
         @enderror
         <br />
         <label for="image_url">image_url:</label>
         <input id="image_url" name="image_url" value="{{old('image_url')}}" required>
-        @error('device_id')
+        @error('image_url')
             <p>{{$message}}</p>
         @enderror
         <br />
         <label for="description">description:</label>
         <textarea type="text" id="description" name="description">{{old('rz_username_buyer')}}</textarea>
-        @error('device_id')
+        @error('description')
             <p>{{$message}}</p>
         @enderror
         <br />
diff --git a/device-app/resources/views/purchasings/edit.blade.php b/device-app/resources/views/purchasings/edit.blade.php
new file mode 100644
index 0000000..762a3af
--- /dev/null
+++ b/device-app/resources/views/purchasings/edit.blade.php
@@ -0,0 +1,37 @@
+<p>{{ $purchasing->price }}</p>
+<form method="POST" action="/devices/{{ $purchasing->device->device_id }}/purchasing">
+    @method('PUT')
+    @csrf
+    <label for="price">price:</label>
+    <input type="text" id="price" name="price" value="{{$purchasing->price}}" required>
+    @error('price')
+        <p>{{ $message }}</p>
+    @enderror
+    <br />
+    <label for="timestamp_warranty_end">timestamp_warranty_end:</label>
+    <input type="text" id="timestamp_warranty_end" name="timestamp_warranty_end"
+        value="{{$purchasing->timestamp_warranty_end}}" required>
+    @error('timestamp_warranty_end')
+        <p>{{ $message }}</p>
+    @enderror
+    <br />
+    <label for="timestamp_purchase">timestamp_purchase:</label>
+    <input type="text" id="timestamp_purchase" name="timestamp_purchase"
+        value="{{$purchasing->timestamp_purchase}}" required>
+    @error('timestamp_purchase')
+        <p>{{ $message }}</p>
+    @enderror
+    <br />
+    <label for="cost_centre">cost_centre:</label>
+    <input type="text" id="cost_centre" name="cost_centre" value="{{$purchasing->cost_centre}}" required>
+    @error('cost_centre')
+        <p>{{ $message }}</p>
+    @enderror
+    <br />
+    <label for="seller">seller:</label>
+    <input type="text" id="seller" name="seller" value="{{$purchasing->seller}}">
+    @error('seller')
+        <p>{{ $message }}</p>
+    @enderror
+    <input type="submit" value="Submit">
+</form>