Rewrite the attribute value (unix timestamp) to a datetime

src/DateTimePicker.php

@@ -94,6 +94,9 @@ public function init()
      */
     public function run()
     {
+        if($this->hasModel()){
+            $this->model->{$this->attribute} = \Yii::$app->formatter->asDatetime($this->model->{$this->attribute});
+        }
 
         $input = $this->hasModel()
             ? Html::activeTextInput($this->model, $this->attribute, $this->options)

tests/functional/DateTimePickerTest.php

@@ -20,7 +20,7 @@ public function testRenderWithModel()
             'model' => $model,
             'attribute' => 'create_time'
         ]);
-        $expected = '<div class="input-group date"><input type="text" id="post-create_time" class="form-control" name="Post[create_time]" value="1425807308" readonly="readonly"><span class="input-group-addon"><span class="glyphicon glyphicon-remove"></span></span><span class="input-group-addon"><span class="glyphicon glyphicon-th"></span></span></div>';
+        $expected = '<div class="input-group date"><input type="text" id="post-create_time" class="form-control" name="Post[create_time]" value="Mar 8, 2015 9:35:08 AM" readonly="readonly"><span class="input-group-addon"><span class="glyphicon glyphicon-remove"></span></span><span class="input-group-addon"><span class="glyphicon glyphicon-th"></span></span></div>';
 
         $this->assertEqualsWithoutLE($expected, $out);
     }