Class yii\widgets\InputWidget
InputWidget is the base class for widgets that collect user inputs.
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 (subclasses may call renderInputHtml() to follow this behavior).
Classes extending from this widget can be used in an ActiveForm using the widget() method, for example like this:
<?= $form->field($model, 'from_date')->widget('WidgetClassName', [
// configure additional widget properties here
]) ?>
For more details and usage information on InputWidget, see the guide article on forms.
公共属性
| 属性 | 类型 | 描述 | 被定义在 |
|---|---|---|---|
| $attribute | string | The model attribute that this widget is associated with. | yii\widgets\InputWidget |
| $autoIdPrefix | string | The prefix to the automatically generated widget IDs. | yii\base\Widget |
| $behaviors | yii\base\Behavior[] | List of behaviors attached to this component | yii\base\Component |
| $counter | integer | A counter used to generate $id for widgets. | yii\base\Widget |
| $field | yii\widgets\ActiveField | Active input field, which triggers this widget rendering. | yii\widgets\InputWidget |
| $id | string | ID of the widget. | yii\base\Widget |
| $model | yii\base\Model | The data model that this widget is associated with. | yii\widgets\InputWidget |
| $name | string | The input name. | yii\widgets\InputWidget |
| $options | array | The HTML attributes for the input tag. | yii\widgets\InputWidget |
| $stack | yii\base\Widget[] | The widgets that are currently being rendered (not ended). | yii\base\Widget |
| $value | string | The input value. | yii\widgets\InputWidget |
| $view | yii\web\View | The view object that can be used to render views or view files. | yii\base\Widget |
| $viewPath | string | The directory containing the view files for this widget. | yii\base\Widget |
公共方法
| 方法 | 描述 | 被定义在 |
|---|---|---|
| __call() | Calls the named method which is not a class method. | yii\base\Component |
| __clone() | This method is called after the object is created by cloning an existing one. | yii\base\Component |
| __construct() | Constructor. | yii\base\BaseObject |
| __get() | Returns the value of a component property. | yii\base\Component |
| __isset() | Checks if a property is set, i.e. defined and not null. | yii\base\Component |
| __set() | Sets the value of a component property. | yii\base\Component |
| __unset() | Sets a component property to be null. | yii\base\Component |
| afterRun() | This method is invoked right after a widget is executed. | yii\base\Widget |
| attachBehavior() | Attaches a behavior to this component. | yii\base\Component |
| attachBehaviors() | Attaches a list of behaviors to the component. | yii\base\Component |
| beforeRun() | This method is invoked right before the widget is executed. | yii\base\Widget |
| begin() | Begins a widget. | yii\base\Widget |
| behaviors() | Returns a list of behaviors that this component should behave as. | yii\base\Component |
| canGetProperty() | Returns a value indicating whether a property can be read. | yii\base\Component |
| canSetProperty() | Returns a value indicating whether a property can be set. | yii\base\Component |
| className() | Returns the fully qualified name of this class. | yii\base\BaseObject |
| detachBehavior() | Detaches a behavior from the component. | yii\base\Component |
| detachBehaviors() | Detaches all behaviors from the component. | yii\base\Component |
| end() | Ends a widget. | yii\base\Widget |
| ensureBehaviors() | Makes sure that the behaviors declared in behaviors() are attached to this component. | yii\base\Component |
| getBehavior() | Returns the named behavior object. | yii\base\Component |
| getBehaviors() | Returns all behaviors attached to this component. | yii\base\Component |
| getId() | Returns the ID of the widget. | yii\base\Widget |
| getView() | Returns the view object that can be used to render views or view files. | yii\base\Widget |
| getViewPath() | Returns the directory containing the view files for this widget. | yii\base\Widget |
| hasEventHandlers() | Returns a value indicating whether there is any handler attached to the named event. | yii\base\Component |
| hasMethod() | Returns a value indicating whether a method is defined. | yii\base\Component |
| hasProperty() | Returns a value indicating whether a property is defined for this component. | yii\base\Component |
| init() | Initializes the widget. | yii\widgets\InputWidget |
| off() | Detaches an existing event handler from this component. | yii\base\Component |
| on() | Attaches an event handler to an event. | yii\base\Component |
| render() | Renders a view. | yii\base\Widget |
| renderFile() | Renders a view file. | yii\base\Widget |
| run() | Executes the widget. | yii\base\Widget |
| setId() | Sets the ID of the widget. | yii\base\Widget |
| setView() | Sets the view object to be used by this widget. | yii\base\Widget |
| trigger() | Triggers an event. | yii\base\Component |
| widget() | Creates a widget instance and runs it. | yii\base\Widget |
受保护的方法
| 方法 | 描述 | 被定义在 |
|---|---|---|
| hasModel() | yii\widgets\InputWidget | |
| renderInputHtml() | Render a HTML input tag. | yii\widgets\InputWidget |
Events
| 事件 | 类型 | 描述 | 被定义在 |
|---|---|---|---|
| EVENT_AFTER_RUN | yii\base\WidgetEvent | An event raised right after executing a widget. （自版本 2.0.11 可用） | yii\base\Widget |
| EVENT_BEFORE_RUN | yii\base\WidgetEvent | An event raised right before executing a widget. （自版本 2.0.11 可用） | yii\base\Widget |
| EVENT_INIT | yii\base\Event | An event that is triggered when the widget is initialized via init(). （自版本 2.0.11 可用） | yii\base\Widget |
属性详情
The model attribute that this widget is associated with.
Active input field, which triggers this widget rendering. This field will be automatically filled up in case widget instance is created via yii\widgets\ActiveField::widget().
The data model that this widget is associated with.
The input name. This must be set if $model and $attribute are not set.
The HTML attributes for the input tag.
参见 yii\helpers\Html::renderTagAttributes() for details on how attributes are being rendered.
The input value.
方法详情
| protected boolean hasModel() | ||
| return | boolean | Whether this widget is associated with a data model. |
|---|---|---|
Initializes the widget.
If you override this method, make sure you call the parent implementation first.
| public void init() |
Render a HTML input tag.
This will call yii\helpers\Html::activeInput() if the input widget is tied to a model, or yii\helpers\Html::input() if not.
参见：
| protected string renderInputHtml($type) | ||
| $type | string | The type of the input to create. |
| return | string | The HTML of the input field. |
|---|---|---|