solve validation

app/Http/Controllers/PostController.php

@@ -12,6 +12,9 @@ public function store(Request $request)
         $request->validate(
             // ... TASK: write validation here so that "title" field
             //           would be required and unique in the "posts" DB table
+            [
+                "title" => "required|unique:posts"
+            ]
         );
 
         // Saving the post

app/Http/Controllers/ProfileController.php

@@ -9,6 +9,8 @@ class ProfileController extends Controller
     public function update(Request $request)
     {
         $request->validate([
+            "profile.name" => "required",
+            "profile.email" => "required",
             // TASK: imagine that in the Blade the fields are
             // <input name="profile[name]" ... />
             // <input name="profile[email]" ... />

app/Http/Controllers/UserController.php

@@ -11,7 +11,11 @@ public function update(User $user, UpdateUserRequest $request)
     {
         // TASK: change this line to not allow is_admin field to be updated
         // Update only the fields that are validated in UpdateUserRequest
-        $user->update($request->all());
+        $validatedData = $request->validated();
+
+        unset($validatedData['is_admin']);
+
+        $user->update($validatedData);
 
         return 'Success';
     }

app/Http/Requests/StoreBuildingRequest.php

@@ -30,4 +30,11 @@ public function rules()
             'name' => 'required'
         ];
     }
+
+    public function messages()
+    {
+        return [
+            'name.required' => 'Please enter the name'
+        ];
+    }
 }

app/Http/Requests/StoreItemRequest.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class StoreItemRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+        return [
+            "name" => "required",
+            "description" => "required",
+        ];
+    }
+}

app/Rules/Uppercase.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Rules;
+
+use Closure;
+use Illuminate\Contracts\Validation\ValidationRule;
+
+class Uppercase implements ValidationRule
+{
+    /**
+     * Run the validation rule.
+     *
+     * @param  \Closure(string): \Illuminate\Translation\PotentiallyTranslatedString  $fail
+     */
+    public function validate(string $attribute, mixed $value, Closure $fail): void
+    {
+        if (strtoupper($value[0]) !== $value[0]) {
+            $fail('The :attribute does not start with an uppercased letter');
+        }
+    }
+}