InputWidget base class

framework/yii/jui/InputWidget.php

+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\jui;
+
+use Yii;
+use yii\base\Model;
+use yii\base\InvalidConfigException;
+
+/**
+ * InputWidget is the base class for all jQuery UI input widgets.
+ *
+ * @author Alexander Kochetov <creocoder@gmail.com>
+ * @since 2.0
+ */
+class InputWidget extends Widget
+{
+	/**
+	 * @var Model the data model that this widget is associated with.
+	 */
+	public $model;
+	/**
+	 * @var string the model attribute that this widget is associated with.
+	 */
+	public $attribute;
+	/**
+	 * @var string the input name. This must be set if [[model]] and [[attribute]] are not set.
+	 */
+	public $name;
+	/**
+	 * @var string the input value.
+	 */
+	public $value;
+
+
+	/**
+	 * Initializes the widget.
+	 * If you override this method, make sure you call the parent implementation first.
+	 */
+	public function init()
+	{
+		if (!$this->hasModel() && $this->name === null) {
+			throw new InvalidConfigException("Either 'name' or 'model' and 'attribute' properties must be specified.");
+		}
+		parent::init();
+	}
+
+	/**
+	 * @return boolean whether this widget is associated with a data model.
+	 */
+	protected function hasModel()
+	{
+		return $this->model instanceof Model && $this->attribute !== null;
+	}
+}