Feat: CRUD категорий курсов

✅ CourseCategoryController (resource)
✅ CourseCategoryPolicy
✅ Маршруты: /admin/course-categories
✅ Blade-шаблоны:
  - index.blade.php (древовидный список)
  - create.blade.php
  - _row.blade.php (partial для дерева)
✅ Ссылка в сайдбаре
✅ Вложенность категорий (parent/children)
✅ Scope tree() для древовидной структуры

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

app/Http/Controllers/Admin/CourseCategoryController.php

@@ -0,0 +1,118 @@
+<?php
+
+namespace App\Http\Controllers\Admin;
+
+use App\Http\Controllers\Controller;
+use App\Models\CourseCategory;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Gate;
+use Illuminate\Support\Str;
+
+class CourseCategoryController extends Controller
+{
+    public function __construct()
+    {
+        $this->middleware('auth');
+    }
+
+    public function index()
+    {
+        Gate::authorize('viewAny', CourseCategory::class);
+        
+        $categories = CourseCategory::tree();
+        
+        return view('admin.course-categories.index', compact('categories'));
+    }
+
+    public function create()
+    {
+        Gate::authorize('create', CourseCategory::class);
+        
+        $parentCategories = CourseCategory::whereNull('parent_id')
+            ->orderBy('name')
+            ->get();
+        
+        return view('admin.course-categories.create', compact('parentCategories'));
+    }
+
+    public function store(Request $request)
+    {
+        Gate::authorize('create', CourseCategory::class);
+        
+        $validated = $request->validate([
+            'name' => 'required|string|max:255',
+            'slug' => 'nullable|string|max:255|unique:course_categories',
+            'description' => 'nullable|string',
+            'parent_id' => 'nullable|exists:course_categories,id',
+            'sort_order' => 'integer',
+        ]);
+        
+        $validated['slug'] = $validated['slug'] ?? Str::slug($validated['name']);
+        $validated['is_active'] = $request->boolean('is_active');
+        
+        CourseCategory::create($validated);
+        
+        return redirect()->route('admin.course-categories.index')
+            ->with('success', 'Категория успешно создана.');
+    }
+
+    public function show(CourseCategory $category)
+    {
+        Gate::authorize('view', $category);
+        
+        $category->load(['parent', 'children', 'courses']);
+        
+        return view('admin.course-categories.show', compact('category'));
+    }
+
+    public function edit(CourseCategory $category)
+    {
+        Gate::authorize('update', $category);
+        
+        $parentCategories = CourseCategory::whereNull('parent_id')
+            ->where('id', '!=', $category->id)
+            ->orderBy('name')
+            ->get();
+        
+        return view('admin.course-categories.edit', compact('category', 'parentCategories'));
+    }
+
+    public function update(Request $request, CourseCategory $category)
+    {
+        Gate::authorize('update', $category);
+        
+        $validated = $request->validate([
+            'name' => 'required|string|max:255',
+            'slug' => 'nullable|string|max:255|unique:course_categories,slug,' . $category->id,
+            'description' => 'nullable|string',
+            'parent_id' => 'nullable|exists:course_categories,id',
+            'sort_order' => 'integer',
+        ]);
+        
+        $validated['slug'] = $validated['slug'] ?? Str::slug($validated['name']);
+        $validated['is_active'] = $request->boolean('is_active');
+        
+        $category->update($validated);
+        
+        return redirect()->route('admin.course-categories.index')
+            ->with('success', 'Категория успешно обновлена.');
+    }
+
+    public function destroy(CourseCategory $category)
+    {
+        Gate::authorize('delete', $category);
+        
+        if ($category->courses()->count() > 0) {
+            return back()->with('error', 'Невозможно удалить категорию с курсами.');
+        }
+        
+        if ($category->children()->count() > 0) {
+            return back()->with('error', 'Невозможно удалить категорию с подкатегориями.');
+        }
+        
+        $category->delete();
+        
+        return redirect()->route('admin.course-categories.index')
+            ->with('success', 'Категория успешно удалена.');
+    }
+}

app/Models/CourseCategory.php

@@ -38,4 +38,11 @@ class CourseCategory extends Model
     {
         return $this->hasMany(Course::class);
     }
+
+    public function scopeTree($query)
+    {
+        return $query->with(['children', 'children.children'])->withCount('courses')->orderBy('sort_order')->get()->filter(function($cat) {
+            return is_null($cat->parent_id);
+        });
+    }
 }

app/Policies/CourseCategoryPolicy.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace App\Policies;
+
+use App\Models\CourseCategory;
+use App\Models\User;
+
+class CourseCategoryPolicy
+{
+    public function viewAny(User $user): bool
+    {
+        return $user->hasRole(['Administrator', 'Manager', 'Curator']);
+    }
+
+    public function view(User $user, CourseCategory $category): bool
+    {
+        return $user->hasRole(['Administrator', 'Manager', 'Curator']);
+    }
+
+    public function create(User $user): bool
+    {
+        return $user->hasRole(['Administrator', 'Manager']);
+    }
+
+    public function update(User $user, CourseCategory $category): bool
+    {
+        return $user->hasRole(['Administrator', 'Manager']);
+    }
+
+    public function delete(User $user, CourseCategory $category): bool
+    {
+        return $user->hasRole(['Administrator']);
+    }
+}

app/Providers/AuthServiceProvider.php

@@ -2,9 +2,11 @@
 
 namespace App\Providers;
 
+use App\Models\CourseCategory;
 use App\Models\Group;
 use App\Models\Organization;
 use App\Models\User;
+use App\Policies\CourseCategoryPolicy;
 use App\Policies\GroupPolicy;
 use App\Policies\OrganizationPolicy;
 use App\Policies\UserPolicy;
@@ -18,6 +20,7 @@ class AuthServiceProvider extends ServiceProvider
      * @var array<class-string, class-string>
      */
     protected $policies = [
+        CourseCategory::class => CourseCategoryPolicy::class,
         Organization::class => OrganizationPolicy::class,
         Group::class => GroupPolicy::class,
         User::class => UserPolicy::class,

resources/views/admin/course-categories/_row.blade.php

@@ -0,0 +1,26 @@
+@php
+    $children = $category->children ?? collect();
+@endphp
+<tr>
+    <td style="padding-left: {{ ($level * 30) + 12 }}px">
+        @if($level > 0)<i class="bi bi-arrow-return-right text-muted"></i>@endif
+        <strong>{{ $category->name }}</strong>
+    </td>
+    <td><code>{{ $category->slug }}</code></td>
+    <td>{{ $category->courses_count }}</td>
+    <td>@if($category->is_active)<span class="badge bg-success">Активна</span>@else<span class="badge bg-secondary">Не активна</span>@endif</td>
+    <td>
+        <div class="btn-group btn-group-sm">
+            <a href="{{ route('admin.course-categories.show', $category) }}" class="btn btn-outline-primary"><i class="bi bi-eye"></i></a>
+            @can('update', $category)
+            <a href="{{ route('admin.course-categories.edit', $category) }}" class="btn btn-outline-warning"><i class="bi bi-pencil"></i></a>
+            @endcan
+            @can('delete', $category)
+            <form action="{{ route('admin.course-categories.destroy', $category) }}" method="POST" class="d-inline" onsubmit="return confirm('Удалить?')">@csrf @method('DELETE')<button class="btn btn-outline-danger"><i class="bi bi-trash"></i></button></form>
+            @endcan
+        </div>
+    </td>
+</tr>
+@foreach($children as $child)
+    @include('admin.course-categories._row', ['category' => $child, 'level' => $level + 1])
+@endforeach

resources/views/admin/course-categories/create.blade.php

@@ -0,0 +1,65 @@
+@extends('layouts.app')
+@section('title', 'Добавить категорию')
+@section('content')
+<div class="container-fluid">
+    <div class="row">
+        <nav class="col-md-3 col-lg-2 d-md-block sidebar"><div class="position-sticky pt-3">@include('partials._sidebar')</div></nav>
+        <main class="col-md-9 ms-sm-auto col-lg-10 px-md-4 main-content">
+            <div class="d-flex justify-content-between align-items-center pt-3 pb-2 mb-3 border-bottom">
+                <h1 class="h2">Добавить категорию</h1>
+                <a href="{{ route('admin.course-categories.index') }}" class="btn btn-secondary btn-sm">Назад</a>
+            </div>
+            <form action="{{ route('admin.course-categories.store') }}" method="POST">
+                @csrf
+                <div class="row">
+                    <div class="col-md-8">
+                        <div class="card shadow-sm mb-3">
+                            <div class="card-body">
+                                <div class="mb-3">
+                                    <label class="form-label">Название *</label>
+                                    <input type="text" name="name" class="form-control @error('name') is-invalid @enderror" value="{{ old('name') }}" required>
+                                    @error('name')<div class="invalid-feedback">{{ $message }}</div>@enderror
+                                </div>
+                                <div class="mb-3">
+                                    <label class="form-label">Slug (URL)</label>
+                                    <input type="text" name="slug" class="form-control @error('slug') is-invalid @enderror" value="{{ old('slug') }}" placeholder="автоматически">
+                                    @error('slug')<div class="invalid-feedback">{{ $message }}</div>@enderror
+                                </div>
+                                <div class="mb-3">
+                                    <label class="form-label">Описание</label>
+                                    <textarea name="description" class="form-control" rows="3">{{ old('description') }}</textarea>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                    <div class="col-md-4">
+                        <div class="card shadow-sm mb-3">
+                            <div class="card-body">
+                                <div class="mb-3">
+                                    <label class="form-label">Родительская категория</label>
+                                    <select name="parent_id" class="form-select">
+                                        <option value="">Без родителя</option>
+                                        @foreach($parentCategories as $cat)
+                                        <option value="{{ $cat->id }}" {{ old('parent_id') == $cat->id ? 'selected' : '' }}>{{ $cat->name }}</option>
+                                        @endforeach
+                                    </select>
+                                </div>
+                                <div class="mb-3">
+                                    <label class="form-label">Порядок</label>
+                                    <input type="number" name="sort_order" class="form-control" value="{{ old('sort_order', 0) }}">
+                                </div>
+                                <div class="form-check mb-3">
+                                    <input type="checkbox" name="is_active" value="1" class="form-check-input" {{ old('is_active', true) ? 'checked' : '' }}>
+                                    <label class="form-check-label">Активна</label>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+                <button type="submit" class="btn btn-primary">Создать</button>
+                <a href="{{ route('admin.course-categories.index') }}" class="btn btn-secondary">Отмена</a>
+            </form>
+        </main>
+    </div>
+</div>
+@endsection

resources/views/admin/course-categories/index.blade.php

@@ -0,0 +1,32 @@
+@extends('layouts.app')
+@section('title', 'Категории курсов')
+@section('content')
+<div class="container-fluid">
+    <div class="row">
+        <nav class="col-md-3 col-lg-2 d-md-block sidebar"><div class="position-sticky pt-3">@include('partials._sidebar')</div></nav>
+        <main class="col-md-9 ms-sm-auto col-lg-10 px-md-4 main-content">
+            <div class="d-flex justify-content-between align-items-center pt-3 pb-2 mb-3 border-bottom">
+                <h1 class="h2">Категории курсов</h1>
+                @can('create', App\Models\CourseCategory::class)
+                <a href="{{ route('admin.course-categories.create') }}" class="btn btn-primary btn-sm"><i class="bi bi-plus-lg"></i> Добавить категорию</a>
+                @endcan
+            </div>
+            @if(session('success'))<div class="alert alert-success">{{ session('success') }}</div>@endif
+            @if(session('error'))<div class="alert alert-danger">{{ session('error') }}</div>@endif
+            
+            <div class="card shadow-sm">
+                <div class="card-body">
+                    <table class="table table-hover">
+                        <thead><tr><th>Название</th><th>Slug</th><th>Курсов</th><th>Статус</th><th>Действия</th></tr></thead>
+                        <tbody>
+                            @foreach($categories as $category)
+                            @include('admin.course-categories._row', ['category' => $category, 'level' => 0])
+                            @endforeach
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+        </main>
+    </div>
+</div>
+@endsection

resources/views/partials/_sidebar.blade.php

@@ -19,6 +19,11 @@
             <i class="bi bi-people"></i> Пользователи
         </a>
     </li>
+    <li class="nav-item">
+        <a class="nav-link {{ Str::startsWith($currentRoute, 'admin.course-categories') ? 'active' : '' }}" href="{{ route('admin.course-categories.index') }}">
+            <i class="bi bi-folder"></i> Категории курсов
+        </a>
+    </li>
     <li class="nav-item">
         <a class="nav-link" href="#">
             <i class="bi bi-book"></i> Курсы

routes/web.php

@@ -38,5 +38,6 @@ Route::middleware('auth')->group(function () {
         Route::resource('organizations', OrganizationController::class);
         Route::resource('organizations.groups', GroupController::class);
         Route::resource('users', UserController::class);
+        Route::resource('course-categories', CourseCategoryController::class);
     });
 });