Yii在使用CHtmlRadio的时候，如果参数不正确，会隐藏一个form，导致如果radio的值有3个时，永远只能提交第一个和最后一个
太纠结了。仔细看看，确实 是有一个隐藏FORM，导致本来应该是3个radio的button，变成了6个。
找了一下资料，看了一下源码，果然。。。。有一个hidden。
PHP代码
- /**
- * Generates a radio button for a model attribute.
- * If the attribute has input error, the input field's CSS class will
- * be appended with {@link errorCss}.
- * @param CModel $model the data model
- * @param string $attribute the attribute
- * @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
- * attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
- * A special option named 'uncheckValue' is available that can be used to specify
- * the value returned when the radio button is not checked. By default, this value is '0'.
- * Internally, a hidden field is rendered so that when the radio button is not checked,
- * we can still obtain the posted uncheck value.
- * If 'uncheckValue' is set as NULL, the hidden field will not be rendered.
- * @return string the generated radio button
- * @see clientChange
- * @see activeInputField
- */
- public static function activeRadioButton($model,$attribute,$htmlOptions=array())
- {
- self::resolveNameID($model,$attribute,$htmlOptions);
- if(!isset($htmlOptions['value']))
- $htmlOptions['value']=1;
- if(!isset($htmlOptions['checked']) && self::resolveValue($model,$attribute)==$htmlOptions['value'])
- $htmlOptions['checked']='checked';
- self::clientChange('click',$htmlOptions);
- if(array_key_exists('uncheckValue',$htmlOptions))
- {
- $uncheck=$htmlOptions['uncheckValue'];
- unset($htmlOptions['uncheckValue']);
- }
- else
- $uncheck='0';
- $hiddenOptions=isset($htmlOptions['id']) ? array('id'=>self::ID_PREFIX.$htmlOptions['id']) : array('id'=>false);
- $hidden=$uncheck!==null ? self::hiddenField($htmlOptions['name'],$uncheck,$hiddenOptions) : '';
- // add a hidden field so that if the radio button is not selected, it still submits a value
- return $hidden . self::activeInputField('radio',$model,$attribute,$htmlOptions);
- }
太纠结了。居然用unCheckValue设置一下才OK：
PHP代码
- echo CHtml::radioButton('btn', false, array(
- 'value'=>'1',
- 'name'=>'btnname',
- 'uncheckValue'=>null
- ));
- CHtml::radioButton('btn', false, array(
- 'value'=>'2',
- 'name'=>'btnname',
- 'uncheckValue'=>null
- ));
- //如果是activeForm，就得这么用
- echo $form->radioButton($model, 'name', array(
- 'value'=>1,
- 'uncheckValue'=>null
- ));
- echo $form->radioButton($model, 'name', array(
- 'value'=>2,
- 'uncheckValue'=>null
- ));
果然纠结。。。NND