diff --git a/app/Http/Controllers/Catalog/DepartmentController.php b/app/Http/Controllers/Catalog/DepartmentController.php
index 91b1869..c50c8bb 100644
--- a/app/Http/Controllers/Catalog/DepartmentController.php
+++ b/app/Http/Controllers/Catalog/DepartmentController.php
@@ -51,10 +51,7 @@ class DepartmentController extends Controller
         return view('catalog.department.edit', compact('department', 'faculties'));
     }
 
-    /**
-     * Update the specified resource in storage.
-     */
-    public function update(UpdateDepartmentRequest $request, Department $department)
+    public function update(UpdateDepartmentRequest $request, Department $department): RedirectResponse
     {
         $validated = $request->validated();
 
@@ -69,6 +66,9 @@ class DepartmentController extends Controller
 
     public function destroy(Department $department): RedirectResponse
     {
+        if ($department->directions()->exists()) {
+            return back();
+        }
         $department->delete();
         return redirect()->route('departments.index');
     }
diff --git a/app/Http/Controllers/Catalog/DirectionController.php b/app/Http/Controllers/Catalog/DirectionController.php
index 2df2941..f65be02 100644
--- a/app/Http/Controllers/Catalog/DirectionController.php
+++ b/app/Http/Controllers/Catalog/DirectionController.php
@@ -3,10 +3,8 @@
 namespace App\Http\Controllers\Catalog;
 
 use App\Http\Controllers\Controller;
-use App\Http\Requests\StoreDepartmentRequest;
 use App\Http\Requests\StoreDirectionRequest;
 use App\Http\Requests\UpdateDepartmentRequest;
-use App\Http\Requests\UpdateDirectionRequest;
 use App\Models\Department;
 use App\Models\Direction;
 use Illuminate\Contracts\View\Factory;
@@ -54,10 +52,7 @@ class DirectionController extends Controller
         return view('catalog.direction.edit', compact('direction', 'departments'));
     }
 
-    /**
-     * Update the specified resource in storage.
-     */
-    public function update(UpdateDepartmentRequest $request, Direction $direction)
+    public function update(UpdateDepartmentRequest $request, Direction $direction): RedirectResponse
     {
         $validated = $request->validated();
 
diff --git a/app/Http/Controllers/DocumentController.php b/app/Http/Controllers/DocumentController.php
index 16a1141..bf55212 100644
--- a/app/Http/Controllers/DocumentController.php
+++ b/app/Http/Controllers/DocumentController.php
@@ -6,7 +6,7 @@ use App\Http\Requests\StoreFileRequest;
 use App\Http\Requests\StoreReceptionScreenRequest;
 use App\Http\Requests\UpdateFileRequest;
 use App\Http\Requests\UpdateReceptionScreenRequest;
-use App\Models\File;
+use App\Models\Documents;
 use App\Models\ReceptionScreen;
 use App\Services\WorkWithFiles;
 use Carbon\Carbon;
@@ -18,16 +18,12 @@ use Illuminate\Support\Facades\Storage;
 
 class DocumentController extends Controller
 {
-    public function __construct()
-    {
-        $this->middleware('auth');
-    }
     public function index(): View|Application|Factory|\Illuminate\Contracts\Foundation\Application
     {
         abort_if(Auth::guest(), 403);
 
-        $files = File::all()->sortBy('position');
-        return view('files.index', compact('files'));
+        $files = Documents::all()->sortBy('position');
+        return view('documents.index', compact('files'));
     }
 
     public function create($idReceptionScreen = null): View
@@ -35,7 +31,7 @@ class DocumentController extends Controller
         abort_if(Auth::guest(), 403);
 
         $receptionScreens = ReceptionScreen::pluck('name', 'id');
-        $files = File::where('reception_screen_id', '=', $idReceptionScreen)->get();
+        $files = Documents::where('reception_screen_id', '=', $idReceptionScreen)->get();
         return view('files.create', compact('receptionScreens', 'idReceptionScreen', 'files'));
     }
 
@@ -47,7 +43,7 @@ class DocumentController extends Controller
         $name = Storage::put('public', $request->file('url'));
 
         $validated = $request->validated();
-        $file = new File();
+        $file = new Documents();
         $file->name = $validated['name'];
         $file->file_name = $nameFile;
         $file->url = Storage::url($name);
@@ -60,15 +56,15 @@ class DocumentController extends Controller
 
     public function download($id)
     {
-        $file = (new File())->find($id);
+        $file = (new Documents())->find($id);
         return Storage::url($file->url);
     }
     public function edit(int $idFile)
     {
         abort_if(Auth::guest(), 403);
 
-        $file = (new File())->find($idFile);
-        $files = File::where('reception_screen_id', '=', $file->reception_screen_id)->get();
+        $file = (new Documents())->find($idFile);
+        $files = Documents::where('reception_screen_id', '=', $file->reception_screen_id)->get();
 
         $receptionScreens = ReceptionScreen::pluck('name', 'id');
         $idsReceptionScreens = $receptionScreens->keys()->toArray();
@@ -85,7 +81,7 @@ class DocumentController extends Controller
         );
     }
 
-    public function update(UpdateFileRequest $request, File $file)
+    public function update(UpdateFileRequest $request, Documents $file)
     {
         abort_if(Auth::guest(), 403);
 
@@ -102,7 +98,7 @@ class DocumentController extends Controller
     {
         abort_if(Auth::guest(), 403);
 
-        $file = (new File())->find($idFile);
+        $file = (new Documents())->find($idFile);
         $file->delete();
         return redirect()->route('admin-reception-screen.index');
     }
diff --git a/app/Models/Department.php b/app/Models/Department.php
index f691ec8..2e32ed4 100644
--- a/app/Models/Department.php
+++ b/app/Models/Department.php
@@ -5,6 +5,7 @@ namespace App\Models;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 
 class Department extends Model
 {
@@ -21,4 +22,9 @@ class Department extends Model
     {
         return $this->belongsTo(Faculty::class);
     }
+
+    public function directions(): HasMany
+    {
+        return $this->hasMany('App\Models\Direction', 'department_id');
+    }
 }