プロフィール設定の実装

app/Http/Controllers/SettingController.php

@@ -13,9 +13,24 @@ class SettingController extends Controller
         return view('setting.profile');
     }
 
-    public function updateProfile()
+    public function updateProfile(Request $request)
     {
-        abort(501);
+        $inputs = $request->all();
+        $validator = Validator::make($inputs, [
+            'display_name' => 'required|string|max:20'
+        ], [], [
+            'display_name' => '名前'
+        ]);
+
+        if ($validator->fails()) {
+            return redirect()->route('setting')->withErrors($validator)->withInput();
+        }
+
+        $user = Auth::user();
+        $user->display_name = $inputs['display_name'];
+        $user->save();
+
+        return redirect()->route('setting')->with('status', 'プロフィールを更新しました。');
     }
 
     public function updatePrivacy(Request $request)

resources/views/setting/profile.blade.php

@@ -9,7 +9,12 @@
         {{ csrf_field() }}
         <div class="from-group">
             <label for="display_name">名前</label>
-            <input id="display_name" name="display_name" type="text" class="form-control" value="{{ old('display_name') ?? Auth::user()->display_name }}">
+            <input id="display_name" name="display_name" type="text" class="form-control {{ $errors->has('display_name') ? ' is-invalid' : '' }}"
+                   value="{{ old('display_name') ?? Auth::user()->display_name }}" maxlength="20" autocomplete="off">
+
+            @if ($errors->has('display_name'))
+                <div class="invalid-feedback">{{ $errors->first('display_name') }}</div>
+            @endif
         </div>
         <div class="from-group mt-2">
             <label for="name">ユーザー名</label>