add validation in store and update product methods of productcontroller

app/Http/Controllers/ProductController.php

@@ -39,6 +39,13 @@ class ProductController extends Controller
      */
     public function store(/*Request $request*/)
     {
+        request()->validate([
+            'reference' => 'required',
+            'description_short' => 'required',
+            'description_long' => 'required',
+            'price' => 'required',
+            'type' => 'required'
+        ]);
 
         $product = new Product();
         $product->reference = request('reference');
@@ -92,6 +99,14 @@ class ProductController extends Controller
      */
     public function update(/*Request $request, Product $product*/ $product)
     {
+        request()->validate([
+            'reference' => 'required',
+            'description_short' => 'required',
+            'description_long' => 'required',
+            'price' => 'required',
+            'type' => 'required'
+        ]);
+
         $product = Product::find($product);
         $product->reference = request('reference');
         $product->description_short = request('description_short');

resources/views/product/create.blade.php

@@ -9,38 +9,104 @@
 
                 <div class="form-group row">
                     <label for="reference" class="col-sm-2 col-form-label">Product reference</label>
+
                     <div class="col-sm-10">
-                        <input type="text" class="form-control" id="reference" name="reference" required>
+                        <input
+                            type="text"
+                            class="form-control @error('reference') is-invalid @enderror"
+                            id="reference"
+                            name="reference"
+                            value="{{ old('reference') }}"
+                        >
+
+                        @error('reference')
+                            <div class="invalid-feedback"> {{ $errors->first('reference') }}</div>
+                        @enderror
                     </div>
                 </div>
+
                 <div class="form-group row">
                     <label for="description_short" class="col-sm-2 col-form-label">Short description</label>
+
                     <div class="col-sm-10">
-                        <textarea class="form-control" id="description_short" rows="3" name="description_short" required></textarea>
+                        <textarea
+                            class="form-control @error('description_short') is-invalid @enderror"
+                            id="description_short"
+                            rows="3"
+                            name="description_short"
+                            required
+                        >{{ old('description_short') }}</textarea>
+
+                        @error('description_short')
+                            <div class="invalid-feedback"> {{ $errors->first('description_short') }}</div>
+                        @enderror
                     </div>
                 </div>
+
                 <div class="form-group row">
                     <label for="description_long" class="col-sm-2 col-form-label">Long description</label>
+
                     <div class="col-sm-10">
-                        <textarea class="form-control" id="description_long" rows="3" name="description_long" required></textarea>
+                        <textarea
+                            class="form-control @error('description_long') is-invalid @enderror"
+                            id="description_long"
+                            rows="3"
+                            name="description_long"
+                            required
+                        >{{ old('description_long') }}</textarea>
+
+                        @error('description_long')
+                            <div class="invalid-feedback"> {{ $errors->first('description_long') }}</div>
+                        @enderror
                     </div>
                 </div>
+
                 <div class="form-group row">
                     <label for="product-type" class="col-sm-2 col-form-label">Product type</label>
+
                     <div class="col-sm-10">
-                        <select class="custom-select custom-select" name="type" id="product-type" required>
-                            <option selected></option>
-                            <option value="Phone">Phone</option>
-                            <option value="Balalaika">Balalaika</option>
+                        <select
+                            class="custom-select custom-select @error('type') is-invalid @enderror"
+                            name="type"
+                            id="product-type"
+                            required
+                        >
+                            <option selected disabled></option>
+                            <option
+                                value="Phone"
+                                {{ (old('type') === 'Phone') ? 'selected' : '' }}
+                            >Phone</option>
+                            <option
+                                value="Balalaika"
+                                {{ (old('type') === 'Balalaika') ? 'selected' : '' }}
+                            >Balalaika</option>
                         </select>
+
+                        @error('type')
+                            <div class="invalid-feedback"> {{ $errors->first('type') }}</div>
+                        @enderror
                     </div>
                 </div>
+
                 <div class="form-group row">
                     <label for="price" class="col-sm-2 col-form-label">Price</label>
+
                     <div class="col-sm-10">
-                        <input type="text" class="form-control" id="price" name="price" required>
+                        <input
+                            type="text"
+                            class="form-control @error('price') is-invalid @enderror"
+                            id="price"
+                            name="price"
+                            required
+                            value="{{ old('price') }}"
+                        >
+
+                        @error('price')
+                            <div class="invalid-feedback"> {{ $errors->first('price') }}</div>
+                        @enderror
                     </div>
                 </div>
+
                 <button class="btn btn-primary">Submit</button>
             </form>
         </div>