Yii フレームワークを使用して健康相談 Web サイトを作成する

'db' => [
    'class' => 'yiidbConnection',
    'dsn' => 'mysql:host=localhost;dbname=health',
    'username' => 'your_database_username',
    'password' => 'your_database_password',
    'charset' => 'utf8',
],

public function actionLogin()
{
    if (!Yii::$app->user->isGuest) {
        return $this->goHome();
    }

    $model = new LoginForm();
    if ($model->load(Yii::$app->request->post()) && $model->login()) {
        return $this->goBack();
    }

    return $this->render('login', [
        'model' => $model,
    ]);
}

public function actionSignup()
{
    $model = new SignupForm();
    if ($model->load(Yii::$app->request->post()) && $model->signup()) {
        return $this->goHome();
    }

    return $this->render('signup', [
        'model' => $model,
    ]);
}

public function behaviors() {
   return [
       'access' => [
           'class' => AccessControl::className(),
           'rules' => [
                [
                    'actions' => ['login', 'signup'],
                    'allow' => true,
                    'roles' => ['?'],
                ],
                [
                    'actions' => ['logout', 'index', 'create-post'],
                    'allow' => true,
                    'roles' => ['@'],
                ],
           ],
       ],
   ];
}

public function actionCreate()
{
    $model = new Post();

    if ($model->load(Yii::$app->request->post()) && $model->save()) {
        return $this->redirect(['view', 'id' => $model->id]);
    }

    return $this->render('create', [
        'model' => $model,
    ]);
}

public function actionUpdate($id)
{
    $model = $this->findModel($id);

    if ($model->load(Yii::$app->request->post()) && $model->save()) {
        return $this->redirect(['view', 'id' => $model->id]);
    }

    return $this->render('update', [
        'model' => $model,
    ]);
}

public function actionView($id)
{
    return $this->render('view', [
        'model' => $this->findModel($id),
    ]);
}

public function actionIndex()
{
    $searchModel = new PostSearch();
    $dataProvider = $searchModel->search(Yii::$app->request->queryParams);

    return $this->render('index', [
        'searchModel' => $searchModel,
        'dataProvider' => $dataProvider,
    ]);
}

protected function findModel($id)
{
    if (($model = Post::findOne($id)) !== null) {
        return $model;
    }

    throw new NotFoundHttpException('The requested page does not exist.');
}

public function rules()
{
    return [
        [['title', 'content'], 'required'],
        ['title', 'string', 'max' => 255],
        ['content', 'string'],
    ];
}

public function search($params)
{
    $query = Post::find();

    $dataProvider = new ActiveDataProvider([
        'query' => $query,
    ]);

    $this->load($params);

    if (!$this->validate()) {
        return $dataProvider;
    }

    $query->andFilterWhere(['like', 'title', $this->title]);
    $query->andFilterWhere(['like', 'content', $this->content]);

    return $dataProvider;
}