Added quiz features

app/Http/Controllers/Admin/QuizCategoryController.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Controller;
+use App\Models\QuizCategory;
+use Illuminate\Http\Request;
+use Illuminate\Support\Str;
+
+class QuizCategoryController extends Controller
+{
+    public function index()
+    {
+        // Load categories and count how many quizzes are in each
+        $categories = QuizCategory::withCount('quizzes')->latest()->get();
+        return view('admin.quiz-categories.index', compact('categories'));
+    }
+
+    public function store(Request $request)
+    {
+        $request->validate([
+            'title' => 'required|string|max:255',
+            'description' => 'nullable|string',
+        ]);
+
+        QuizCategory::create([
+            'title' => $request->title,
+            // Automatically generate a unique slug for URLs
+            'slug' => Str::slug($request->title) . '-' . time(),
+            'description' => $request->description,
+            'is_active' => $request->has('is_active'),
+        ]);
+
+        return back()->with('success', 'دسته‌بندی با موفقیت ایجاد شد.');
+    }
+
+    public function destroy(QuizCategory $quiz_category)
+    {
+        // Check if the category has quizzes before deleting
+        if ($quiz_category->quizzes()->count() > 0) {
+            return back()->with('error', 'این دسته‌بندی شامل آزمون است و نمی‌تواند حذف شود. ابتدا آزمون‌ها را حذف کنید.');
+        }
+
+        $quiz_category->delete();
+        return back()->with('success', 'دسته‌بندی با موفقیت حذف شد.');
+    }
+}