#9 fix columns initialization

Author: serhiivinichuk

composer.json

@@ -10,7 +10,8 @@
         "jquery",
         "datatable",
         "datatables",
-        "plugin"
+        "plugin",
+        "jQuery"
     ],
     "license": "MIT",
     "authors": [

src/DataTable.php

@@ -1,6 +1,6 @@
 <?php
 /**
- * @copyright Copyright (c) 2014 Serhiy Vinichuk
+ * @copyright Copyright (c) 2015 Serhiy Vinichuk
  * @license MIT
  * @author Serhiy Vinichuk <serhiyvinichuk@gmail.com>
  */
@@ -99,7 +99,7 @@ class DataTable extends Widget
     public function init()
     {
         parent::init();
-        DataTableAsset::register($this->view);
+        DataTableAsset::register($this->getView());
         $this->initColumns();
     }
 
@@ -109,7 +109,7 @@ public function run()
         echo Html::beginTag('table', ArrayHelper::merge(['id' => $id], $this->tableOptions));
 
         echo Html::endTag('table');
-        $this->view->registerJs('jQuery("#' . $id . '").DataTable(' . Json::encode($this->getParams()) . ');');
+        $this->getView()->registerJs('jQuery("#' . $id . '").DataTable(' . Json::encode($this->getParams()) . ');');
     }
 
     protected function getParams()
@@ -119,10 +119,10 @@ protected function getParams()
 
     protected function initColumns()
     {
-        if (isset($this->columns)) {
-            foreach ($this->columns as $key => $value) {
+        if (isset($this->_options['columns'])) {
+            foreach ($this->_options['columns'] as $key => $value) {
                 if (is_string($value)) {
-                    $this->columns[$key] = ['data' => $value, 'title' => Inflector::camel2words($value)];
+                    $this->_options['columns'][$key] = ['data' => $value, 'title' => Inflector::camel2words($value)];
                 }
                 if (isset($value['type'])) {
                     if ($value['type'] == 'link') {
@@ -131,7 +131,7 @@ protected function initColumns()
                 }
                 if (isset($value['class'])) {
                     $column = \Yii::createObject($value);
-                    $this->columns[$key] = $column;
+                    $this->_options['columns'][$key] = $column;
                 }
             }
         }