diff --git a/README.md b/README.md
index a63acf6..7dbef9c 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,6 @@ Configure::write('debug', WASA_DEBUG_LEVEL);
 Change log
 ----------
 
-* I added "\WasaCache" class feature to decrease disc access.
-* I repaired "\WasaAppController" class.
-* I created "\WasaAppModel" class for model validation.
+* I added "\WasaAppModel::__construct()" class method.
+* I repaired "\WasaCache::__write()" class method.
+* I repaired "\WasaBootstrap030200FormHelper" class.
diff --git a/app/Lib/Wasa/Cache/WasaCache.php b/app/Lib/Wasa/Cache/WasaCache.php
index 53e32fd..f5730d1 100644
--- a/app/Lib/Wasa/Cache/WasaCache.php
+++ b/app/Lib/Wasa/Cache/WasaCache.php
@@ -110,7 +110,7 @@ private static function __read($key)
         // Reads the cache without lock.
         $array = \Cache::read($key, self::SETTING_NAME);
         // If this is not array.
-        if (!\is_array($array)) {
+        if (!is_array($array)) {
             // Returns an empty array.
             return array ();
         }
@@ -156,8 +156,16 @@ private static function __write($key, $nativeArray, $array)
         if ($array !== $nativeArray) {
             // Locks the cache.
             \Cache::set(array ('lock' => true), self::SETTING_NAME);
-            // Writes to the cache.
-            $result = \Cache::write($key, $array, self::SETTING_NAME);
+            $result = true;
+            $currentArray = \Cache::read($key, self::SETTING_NAME);
+            if (!\is_array($currentArray)) {
+                $currentArray = array ();
+            }
+            // If other process has not written.
+            if ($currentArray === $nativeArray) {
+                // Writes to the cache.
+                $result = \Cache::write($key, $array, self::SETTING_NAME);
+            }
             // Unlocks the cache.
             \Cache::set(array ('lock' => false), self::SETTING_NAME);
             if (WASA_DEBUG_LEVEL && $result === false) {
diff --git a/app/Lib/Wasa/Model/WasaAppModel.php b/app/Lib/Wasa/Model/WasaAppModel.php
index 652cf8b..5ff920f 100644
--- a/app/Lib/Wasa/Model/WasaAppModel.php
+++ b/app/Lib/Wasa/Model/WasaAppModel.php
@@ -43,6 +43,7 @@
  */
 \App::uses('AppModel', 'Model');
 \App::uses('WasaAppController', 'Wasa/Controller');
+\App::uses('WasaCache', 'Wasa/Cache');
 /**
  * Wasa's Application Model.
  *
@@ -56,6 +57,16 @@
 class WasaAppModel extends \AppModel
 {
 
+    /**
+     * Sets "$validate" property for model validation.
+     */
+    function __construct()
+    {
+        $this->validate = $this->_getModelValidation();
+
+        parent::__construct();
+    }
+
     /**
      * Gets the model validation.
      *
diff --git a/app/Lib/Wasa/View/Helper/WasaBootstrap030200FormHelper.php b/app/Lib/Wasa/View/Helper/WasaBootstrap030200FormHelper.php
index c4fa9ce..3b9f1c3 100644
--- a/app/Lib/Wasa/View/Helper/WasaBootstrap030200FormHelper.php
+++ b/app/Lib/Wasa/View/Helper/WasaBootstrap030200FormHelper.php
@@ -41,8 +41,7 @@
  * @license  http://www.opensource.org/licenses/bsd-license.php  BSD 2-Clause
  * @link     https://github.com/hidenori-wasa/_CakePHP0204Lib/
  */
-use \WasaBootstrap030200FormHelper as WBFH; // This is this file scope and priority is high.
-use \WasaCache as WC;
+use \WasaCache as WC; // This is this file scope and priority is high.
 
 \App::uses('WasaCache', 'Wasa/Cache');
 /**
@@ -266,14 +265,14 @@ static function displayTelForJP($params)
         for ($count = 0;; $count++) {
             $fieldName = $fieldNames[$count];
             // エラーの場合、入力フォームをエラー色にする
-            echo '<span class="' . $hasErrors[$fieldName] . '" style="' . WBFH::INLINE_BLOCK_STYLE . ' width: 30%">';
+            echo '<span class="' . $hasErrors[$fieldName] . '" style="' . self::INLINE_BLOCK_STYLE . ' width: 30%">';
             // 電話番号テキストボックス
             echo $telHTML[$count];
             echo '</span>';
             if ($count === 2) {
                 break;
             }
-            echo '<span class="wasa-tel-separator-margin" style="' . WBFH::INLINE_BLOCK_STYLE . '">―</span>';
+            echo '<span class="wasa-tel-separator-margin" style="' . self::INLINE_BLOCK_STYLE . '">―</span>';
         }
         echo '</div>';
 
@@ -330,7 +329,7 @@ static function displayCheckboxes($params)
                 array (
                 'type' => 'checkbox',
                 'value' => $value,
-                'style' => WBFH::INLINE_BLOCK_STYLE,
+                'style' => self::INLINE_BLOCK_STYLE,
                 )
             );
             preg_match('`<input [[:space:]]+ type [[:space:]]* = [[:space:]]* "checkbox" .* [[:space:]]+ id [[:space:]]* = [[:space:]]* "(.*)"`xXU', $checkboxElement, $matches);
@@ -339,14 +338,14 @@ static function displayCheckboxes($params)
             echo '<label class="' . $class . ' wasa-checkbox" for="' . $id . '">';
             if ($labelLocation === 'front') {
                 // Displays the front label.
-                echo '<span class="wasa-label" style="' . WBFH::INLINE_BLOCK_STYLE . '">' . $label . '</span>';
+                echo '<span class="wasa-label" style="' . self::INLINE_BLOCK_STYLE . '">' . $label . '</span>';
                 // Displays checkbox and keeps input value.
                 echo $checkboxElement;
             } else {
                 // Displays checkbox and keeps input value.
                 echo $checkboxElement;
                 // Displays the rear label.
-                echo '<span class="wasa-label" style="' . WBFH::INLINE_BLOCK_STYLE . '">' . $label . '</span>';
+                echo '<span class="wasa-label" style="' . self::INLINE_BLOCK_STYLE . '">' . $label . '</span>';
             }
             echo '</label>';
         }
@@ -381,7 +380,7 @@ static function displayRadioButtons($params)
             $fieldName, //
             array (
             'type' => 'radio',
-            'style' => WBFH::INLINE_BLOCK_STYLE,
+            'style' => self::INLINE_BLOCK_STYLE,
             'options' => $values2,
             'legend' => false,
             'label' => false
@@ -410,14 +409,14 @@ static function displayRadioButtons($params)
             echo '<label class="' . $class . ' wasa-radio" for="' . $id . '">';
             if ($labelLocation === 'front') {
                 // Displays the front label.
-                echo '<span class="wasa-label" style="' . WBFH::INLINE_BLOCK_STYLE . '">' . $label . '</span>';
+                echo '<span class="wasa-label" style="' . self::INLINE_BLOCK_STYLE . '">' . $label . '</span>';
                 // Displays radio button and keeps input value.
                 echo $radioElement;
             } else {
                 // Displays radio button and keeps input value.
                 echo $radioElement;
                 // Displays the rear label.
-                echo '<span class="wasa-label" style="' . WBFH::INLINE_BLOCK_STYLE . '">' . $label . '</span>';
+                echo '<span class="wasa-label" style="' . self::INLINE_BLOCK_STYLE . '">' . $label . '</span>';
             }
             echo '</label>';
         }
@@ -474,31 +473,31 @@ static function displayDateForJP($params)
         // 画面サイズがエキストラスモール以外の場合のレイアウト
         echo '<div style="padding: 0;" class="hidden-xs">';
         // echo '<div style="padding: 0;">'; // For debug.
-        echo '<span style="' . WBFH::INLINE_BLOCK_STYLE . '">' . $yearHTML . '</span>';
-        echo '<span style="' . WBFH::INLINE_BLOCK_STYLE . '">年</span>';
-        echo '<span style="' . WBFH::INLINE_BLOCK_STYLE . '">' . $monthHTML . '</span>';
-        echo '<span style="' . WBFH::INLINE_BLOCK_STYLE . '">月</span>';
-        echo '<span style="' . WBFH::INLINE_BLOCK_STYLE . '">' . $dayHTML . '</span>';
-        echo '<span style="' . WBFH::INLINE_BLOCK_STYLE . '">日</span>';
+        echo '<span style="' . self::INLINE_BLOCK_STYLE . '">' . $yearHTML . '</span>';
+        echo '<span style="' . self::INLINE_BLOCK_STYLE . '">年</span>';
+        echo '<span style="' . self::INLINE_BLOCK_STYLE . '">' . $monthHTML . '</span>';
+        echo '<span style="' . self::INLINE_BLOCK_STYLE . '">月</span>';
+        echo '<span style="' . self::INLINE_BLOCK_STYLE . '">' . $dayHTML . '</span>';
+        echo '<span style="' . self::INLINE_BLOCK_STYLE . '">日</span>';
         echo '</div>';
 
         // 画面サイズがエキストラスモールの場合のレイアウト
         echo '<div style="padding: 0;" class="visible-xs">';
         // echo '<div style="padding: 0;">'; // For debug.
-        echo '<span style="' . WBFH::INLINE_BLOCK_STYLE . ' width: 90%">';
+        echo '<span style="' . self::INLINE_BLOCK_STYLE . ' width: 90%">';
         echo $yearHTML;
         echo '</span>';
-        echo '<span style="' . WBFH::INLINE_BLOCK_STYLE . ' margin-top: 0;">年</span>';
+        echo '<span style="' . self::INLINE_BLOCK_STYLE . ' margin-top: 0;">年</span>';
         echo '<div style="' . $centerBlockStyle . '">｜</div>';
-        echo '<span style="' . WBFH::INLINE_BLOCK_STYLE . ' width: 90%">';
+        echo '<span style="' . self::INLINE_BLOCK_STYLE . ' width: 90%">';
         echo $monthHTML;
         echo '</span>';
-        echo '<span style="' . WBFH::INLINE_BLOCK_STYLE . ' margin-top: 0;">月</span>';
+        echo '<span style="' . self::INLINE_BLOCK_STYLE . ' margin-top: 0;">月</span>';
         echo '<div style="' . $centerBlockStyle . '">｜</div>';
-        echo '<span style="' . WBFH::INLINE_BLOCK_STYLE . ' width: 90%">';
+        echo '<span style="' . self::INLINE_BLOCK_STYLE . ' width: 90%">';
         echo $dayHTML;
         echo '</span>';
-        echo '<span style="' . WBFH::INLINE_BLOCK_STYLE . ' margin-top: 0;">日</span>';
+        echo '<span style="' . self::INLINE_BLOCK_STYLE . ' margin-top: 0;">日</span>';
         echo '</div>';
 
         echo '</div>';
diff --git a/app/Model/WasaBootstrap030200FormSample.php b/app/Model/WasaBootstrap030200FormSample.php
index 811d37f..0274f53 100644
--- a/app/Model/WasaBootstrap030200FormSample.php
+++ b/app/Model/WasaBootstrap030200FormSample.php
@@ -4,15 +4,9 @@
 class WasaBootstrap030200FormSample extends \WasaAppModel
 {
 
-    function __construct()
-    {
-        $this->validate = $this->_getModelValidation();
-
-        parent::__construct();
-    }
+}
 
 // \Validation:
-}
 
 /*
   CREATE TABLE IF NOT EXISTS `wasa_bootstrap030200_form_samples` (