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-rw-r--r--framework/web/widgets/CInputWidget.php81
1 files changed, 81 insertions, 0 deletions
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+<?php
+/**
+ * CInputWidget class file.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright &copy; 2008-2011 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+/**
+ * CInputWidget is the base class for widgets that collect user inputs.
+ *
+ * CInputWidget declares properties common among input widgets. An input widget
+ * can be associated with a data model and an attribute, or a name and a value.
+ * If the former, the name and the value will be generated automatically.
+ * Child classes may use {@link resolveNameID} and {@link hasModel}.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Id: CInputWidget.php 3515 2011-12-28 12:29:24Z mdomba $
+ * @package system.web.widgets
+ * @since 1.0
+ */
+abstract class CInputWidget extends CWidget
+{
+ /**
+ * @var CModel the data model associated with this widget.
+ */
+ public $model;
+ /**
+ * @var string the attribute associated with this widget.
+ * The name can contain square brackets (e.g. 'name[1]') which is used to collect tabular data input.
+ */
+ public $attribute;
+ /**
+ * @var string the input name. This must be set if {@link model} is not set.
+ */
+ public $name;
+ /**
+ * @var string the input value
+ */
+ public $value;
+ /**
+ * @var array additional HTML options to be rendered in the input tag
+ */
+ public $htmlOptions=array();
+
+
+ /**
+ * @return array the name and the ID of the input.
+ */
+ protected function resolveNameID()
+ {
+ if($this->name!==null)
+ $name=$this->name;
+ else if(isset($this->htmlOptions['name']))
+ $name=$this->htmlOptions['name'];
+ else if($this->hasModel())
+ $name=CHtml::activeName($this->model,$this->attribute);
+ else
+ throw new CException(Yii::t('yii','{class} must specify "model" and "attribute" or "name" property values.',array('{class}'=>get_class($this))));
+
+ if(($id=$this->getId(false))===null)
+ {
+ if(isset($this->htmlOptions['id']))
+ $id=$this->htmlOptions['id'];
+ else
+ $id=CHtml::getIdByName($name);
+ }
+
+ return array($name,$id);
+ }
+
+ /**
+ * @return boolean whether this widget is associated with a data model.
+ */
+ protected function hasModel()
+ {
+ return $this->model instanceof CModel && $this->attribute!==null;
+ }
+} \ No newline at end of file