Added binding grade with teachers

app/Http/Controllers/GradeTeacherController.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Http\Requests\GradeTeacherPostRequest;
+use App\Models\Grade;
+use App\Models\Subject;
+use App\Models\Teacher;
+use App\Services\ServiceInterface;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\View\View;
+
+class GradeTeacherController extends Controller
+{
+    public function __construct(
+        protected ServiceInterface $service,
+    ) {
+    }
+
+    public function create(Teacher $teacher, Subject $subject): View
+    {
+        return view('grade-teacher.create', [
+            'teacher' => $teacher,
+            'subject' => $subject,
+            'grades' => $this->service->getGrades($subject),
+        ]);
+    }
+
+    public function store(GradeTeacherPostRequest $request, Teacher $teacher, Subject $subject): RedirectResponse
+    {
+        return redirect()->route('teachers.subjects.show', [
+            $this->service->create($request->validated(), $teacher),
+            $subject,
+        ]);
+    }
+
+    public function edit(Teacher $teacher, Subject $subject, Grade $grade): View
+    {
+        return view('grade-teacher.edit', [
+            'teacher' => $teacher,
+            'subject' => $subject,
+            'updateGrade' => $grade,
+            'grades' => $this->service->getGrades($subject),
+        ]);
+    }
+
+    public function update(GradeTeacherPostRequest $request, Teacher $teacher, Subject $subject, Grade $grade): RedirectResponse
+    {
+        return redirect()->route('teachers.subjects.show', [
+            $this->service->update($teacher, $request->validated(), $grade),
+            $subject,
+        ]);
+    }
+
+    public function destroy(Teacher $teacher, Subject $subject, Grade $grade): RedirectResponse
+    {
+        return redirect()->route('teachers.subjects.show', [
+            $this->service->delete($teacher, $grade),
+            $subject,
+        ]);
+    }
+}

app/Http/Controllers/SubjectTeacherController.php

@@ -29,6 +29,15 @@ class SubjectTeacherController extends Controller
         return redirect()->route('teachers.show', $this->service->create($request->validated(), $teacher));
     }
 
+    public function show(Teacher $teacher, Subject $subject): View
+    {
+        return view('subject-teacher.show', [
+            'teacher' => $teacher,
+            'subject' => $subject,
+            'grades' => $this->service->getGrades($teacher, $subject),
+        ]);
+    }
+
     public function edit(Teacher $teacher, Subject $subject): View
     {
         return view('subject-teacher.edit', [

app/Http/Requests/GradeTeacherPostRequest.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class GradeTeacherPostRequest 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 [
+            'grade_id' => 'required|exists:grades,id',
+        ];
+    }
+}

app/Providers/ModelServiceProvider.php

@@ -4,12 +4,14 @@ namespace App\Providers;
 
 use App\Http\Controllers\GradeController;
 use App\Http\Controllers\GradeSubjectController;
+use App\Http\Controllers\GradeTeacherController;
 use App\Http\Controllers\StudentController;
 use App\Http\Controllers\SubjectController;
 use App\Http\Controllers\SubjectTeacherController;
 use App\Http\Controllers\TeacherController;
 use App\Services\GradeService;
 use App\Services\GradeSubjectService;
+use App\Services\GradeTeacherService;
 use App\Services\ServiceInterface;
 use App\Services\StudentService;
 use App\Services\SubjectService;
@@ -59,6 +61,12 @@ class ModelServiceProvider extends ServiceProvider
             ->give(function () {
                 return new GradeSubjectService();
             });
+
+        $this->app->when(GradeTeacherController::class)
+            ->needs(ServiceInterface::class)
+            ->give(function () {
+                return new GradeTeacherService();
+            });
     }
 
     /**

app/Services/GradeTeacherService.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Services;
+
+use App\Models\Subject;
+use App\Models\Teacher;
+use Illuminate\Database\Eloquent\Collection;
+use Illuminate\Database\Eloquent\Model;
+
+class GradeTeacherService implements ServiceInterface
+{
+    public function getAll(?Teacher $teacher = null, ?Subject $subject = null): Collection
+    {
+        return $teacher
+            ->grades()
+            ->join('grade_subject', 'grades.id', '=', 'grade_subject.grade_id')
+            ->where('subject_id', $subject->id)
+            ->get();
+    }
+
+    public function getGrades(Subject $subject): Collection
+    {
+        return $subject->grades;
+    }
+
+    public function create(array $data, ?Model $model = null): Teacher
+    {
+        $model->grades()->syncWithoutDetaching($data['grade_id']);
+
+        return $model;
+    }
+
+    public function update(Model $model, array $data, ?Model $grade = null): Teacher
+    {
+        $model->grades()->detach($grade->id);
+        $model->grades()->attach($data['grade_id']);
+
+        return $model;
+    }
+
+    public function delete(Model $model, ?Model $grade = null): Teacher
+    {
+        $model->grades()->detach($grade);
+
+        return $model;
+    }
+}

app/Services/SubjectTeacherService.php

@@ -19,6 +19,14 @@ class SubjectTeacherService implements ServiceInterface
         return Subject::all();
     }
 
+    public function getGrades(Teacher $teacher, Subject $subject): Collection
+    {
+        return $teacher
+            ->grades()
+            ->join('grade_subject', 'grades.id', '=', 'grade_subject.grade_id')
+            ->where('subject_id', $subject->id)->get();
+    }
+
     public function create(array $data, ?Model $model = null): Teacher
     {
         $model->subjects()->syncWithoutDetaching($data['subject_id']);

resources/views/grade-teacher/create.blade.php

@@ -0,0 +1,5 @@
+@extends('layouts.app')
+
+@section('content')
+    @include('grade-teacher.form', ['route' => route('teachers.subjects.grades.store', [$teacher, $subject]), 'method' => 'POST'])
+@endsection

resources/views/grade-teacher/edit.blade.php

@@ -0,0 +1,8 @@
+@extends('layouts.app')
+
+@section('content')
+    @include('grade-teacher.form', [
+    'route' => route('teachers.subjects.grades.update',
+    ['teacher' => $teacher, 'subject' => $subject, 'grade' => $updateGrade]
+    ), 'method' => 'PUT'])
+@endsection

resources/views/grade-teacher/form.blade.php

@@ -0,0 +1,27 @@
+<div class="container col-md-6">
+    <div class="row justify-content-center">
+        <div class="card mt-4">
+            <div class="card-header">
+                {{ $subject->name }}
+            </div>
+            <div class="card-body">
+                <form action="{{ $route }}" method="POST">
+                    @csrf
+                    @method($method)
+                    <div class="mb-3">
+                        <label for="grade_id" class="form-label">Класс:</label>
+                        <select id="grade_id" name="grade_id" class="form-select" required>
+                            <option value="">Выберите класс</option>
+                            @foreach($grades as $grade)
+                                <option value="{{ $grade->id }}" {{ isset($updateGrade) && $updateGrade->id == $grade->id ? 'selected' : '' }}>
+                                    {{ $grade->name }}
+                                </option>
+                            @endforeach
+                        </select>
+                    </div>
+                    <button type="submit" class="btn btn-success">Подтвердить</button>
+                </form>
+            </div>
+        </div>
+    </div>
+</div>

resources/views/subject-teacher/show.blade.php

@@ -0,0 +1,52 @@
+@extends('layouts.app')
+
+@section('content')
+    <div class="container col-md-6">
+        <div class="row justify-content-center">
+            <div class="card mt-4">
+                <div class="card-header">
+                    {{ $subject->name }}
+                </div>
+                <div class="card-body">
+                    @if(count($grades))
+                        <table class="table table-striped">
+                            <thead>
+                            <th>Название</th>
+                            <th>&nbsp;</th>
+                            </thead>
+                            <tbody>
+                            @foreach ($grades as $grade)
+                                <tr>
+                                    <td class="table-text">
+                                        <div>
+                                            {{ $grade->name }}
+                                        </div>
+                                    </td>
+                                    <td>
+                                        <div>
+                                            <a href="{{ route('teachers.subjects.grades.edit', [$teacher, $subject, $grade]) }}" class="btn btn-warning">Редактировать</a>
+                                        </div>
+                                    </td>
+                                    <td>
+                                        <form action="{{ route('teachers.subjects.grades.destroy', [$teacher, $subject, $grade]) }}" method="POST" style="display: inline-block;">
+                                            @csrf
+                                            @method('DELETE')
+                                            <button type="submit" class="btn btn-danger">Удалить</button>
+                                        </form>
+                                    </td>
+                                </tr>
+                            @endforeach
+                            </tbody>
+                        </table>
+                    @else
+                        <p>У учителя отсутствуют классы</p>
+                    @endif
+                </div>
+                <div class="card-footer">
+                    <a href="{{ route('teachers.subjects.grades.create', [$teacher, $subject]) }}" class="btn btn-success">Добавить</a>
+                </div>
+            </div>
+        </div>
+    </div>
+@endsection
+

resources/views/teachers/show.blade.php

@@ -35,7 +35,7 @@
                                 <tr>
                                     <td class="table-text">
                                         <div>
-                                            {{ $subject->name }}
+                                            <a href="{{ route('teachers.subjects.show', [$teacher, $subject]) }}" class="btn btn-block col-8">{{ $subject->name }}</a>
                                         </div>
                                     </td>
                                     <td>

routes/web.php

@@ -2,6 +2,7 @@
 
 use App\Http\Controllers\GradeController;
 use App\Http\Controllers\GradeSubjectController;
+use App\Http\Controllers\GradeTeacherController;
 use App\Http\Controllers\StudentController;
 use App\Http\Controllers\SubjectController;
 use App\Http\Controllers\SubjectTeacherController;
@@ -19,5 +20,6 @@ Route::resources([
     'teachers' => TeacherController::class,
 ]);
 
-Route::resource('teachers.subjects', SubjectTeacherController::class)->except('index', 'show');
+Route::resource('teachers.subjects', SubjectTeacherController::class)->except('index');
+Route::resource('teachers.subjects.grades', GradeTeacherController::class)->except('index', 'show');
 Route::resource('grades.subjects', GradeSubjectController::class)->except('index', 'show');