Refactored the basic app.

config/web.php

@@ -7,7 +7,7 @@ return array(
 	'modules' => array(
 		'debug' => array(
 			'class' => 'yii\debug\Module',
-			'enabled' => YII_DEBUG && YII_ENV_DEV,
+			'enabled' => YII_ENV_DEV,
 		),
 	),
 	'components' => array(
@@ -15,9 +15,11 @@ return array(
 			'class' => 'yii\caching\FileCache',
 		),
 		'user' => array(
-			'class' => 'yii\web\User',
 			'identityClass' => 'app\models\User',
 		),
+		'errorHandler' => array(
+			'errorAction' => 'site/error',
+		),
 		'log' => array(
 			'traceLevel' => YII_DEBUG ? 3 : 0,
 			'targets' => array(

controllers/SiteController.php

@@ -12,9 +12,12 @@ class SiteController extends Controller
 	public function actions()
 	{
 		return array(
+			'error' => array(
+				'class' => 'yii\web\ErrorAction',
+			),
 			'captcha' => array(
 				'class' => 'yii\captcha\CaptchaAction',
-				'fixedVerifyCode' => YII_ENV_DEV ? 'testme' : null,
+				'fixedVerifyCode' => YII_ENV_TEST ? 'testme' : null,
 			),
 		);
 	}

views/site/about.php

@@ -7,6 +7,7 @@ use yii\helpers\Html;
 $this->title = 'About';
 $this->params['breadcrumbs'][] = $this->title;
 ?>
+<div class="site-about">
 	<h1><?php echo Html::encode($this->title); ?></h1>
 
 	<p>
@@ -14,4 +15,4 @@ $this->params['breadcrumbs'][] = $this->title;
 	</p>
 
 	<code><?php echo __FILE__; ?></code>
-
+</div>

views/site/contact.php

@@ -11,13 +11,16 @@ use yii\captcha\Captcha;
 $this->title = 'Contact';
 $this->params['breadcrumbs'][] = $this->title;
 ?>
+<div class="site-contact">
 	<h1><?php echo Html::encode($this->title); ?></h1>
 
 	<?php if (Yii::$app->session->hasFlash('contactFormSubmitted')): ?>
+
 	<div class="alert alert-success">
 		Thank you for contacting us. We will respond to you as soon as possible.
 	</div>
-<?php return; endif; ?>
+
+	<?php else: ?>
 
 	<p>
 		If you have business inquiries or other questions, please fill out the following form to contact us. Thank you.
@@ -40,3 +43,6 @@ $this->params['breadcrumbs'][] = $this->title;
 			<?php ActiveForm::end(); ?>
 		</div>
 	</div>
+
+	<?php endif; ?>
+</div>

views/site/error.php

@@ -0,0 +1,29 @@
+<?php
+
+use yii\helpers\Html;
+
+/**
+ * @var yii\base\View $this
+ * @var string $name
+ * @var string $message
+ * @var Exception $exception
+ */
+
+$this->title = $name;
+?>
+<div class="site-error">
+
+	<h1><?php echo Html::encode($this->title); ?></h1>
+
+	<div class="alert alert-danger">
+		<?php echo nl2br(Html::encode($message)); ?>
+	</div>
+
+	<p>
+		The above error occurred while the Web server was processing your request.
+	</p>
+	<p>
+		Please contact us if you think this is a server error. Thank you.
+	</p>
+
+</div>

views/site/index.php

@@ -2,8 +2,10 @@
 /**
  * @var yii\base\View $this
  */
-$this->title = 'Welcome';
+$this->title = 'My Yii Application';
 ?>
+<div class="site-index">
+
 	<div class="jumbotron">
 		<h1>Congratulations!</h1>
 
@@ -48,4 +50,4 @@ $this->title = 'Welcome';
 		</div>
 
 	</div>
-
+</div>

views/site/login.php

@@ -10,6 +10,7 @@ use yii\widgets\ActiveForm;
 $this->title = 'Login';
 $this->params['breadcrumbs'][] = $this->title;
 ?>
+<div class="site-login">
 	<h1><?php echo Html::encode($this->title); ?></h1>
 
 	<p>Please fill out the following fields to login:</p>
@@ -26,3 +27,4 @@ $this->params['breadcrumbs'][] = $this->title;
 			<?php ActiveForm::end(); ?>
 		</div>
 	</div>
+</div>

web/index.php

@@ -1,6 +1,6 @@
 <?php
 
-// comment out the following line to disable debug mode
+// comment out the following two lines when deployed to production
 defined('YII_DEBUG') or define('YII_DEBUG', true);
 defined('YII_ENV') or define('YII_ENV', 'dev');