CButtonColumn
包 | zii.widgets.grid |
---|---|
继承 | class CButtonColumn » CGridColumn » CComponent |
可用自 | 1.1 |
源码 | framework/zii/widgets/grid/CButtonColumn.php |
By default, it will display three buttons, "view", "update" and "delete", which triggers the corresponding actions on the model of the row.
By configuring buttons and template properties, the column can display other buttons and customize the display order of the buttons.
公共属性
属性 | 类型 | 描述 | 被定义在 |
---|---|---|---|
afterDelete | string | a javascript function that will be invoked after the delete ajax call. | CButtonColumn |
buttons | array | the configuration for buttons. | CButtonColumn |
cssClassExpression | string | a PHP expression that is evaluated for every data cell and whose result is used as the CSS class name for the data cell. | CGridColumn |
deleteButtonImageUrl | string | the image URL for the delete button. | CButtonColumn |
deleteButtonLabel | string | the label for the delete button. | CButtonColumn |
deleteButtonOptions | array | the HTML options for the delete button tag. | CButtonColumn |
deleteButtonUrl | string | a PHP expression that is evaluated for every delete button and whose result is used as the URL for the delete button. | CButtonColumn |
deleteConfirmation | string | the confirmation message to be displayed when delete button is clicked. | CButtonColumn |
filterCellContent | string | Returns the filter cell content. | CGridColumn |
filterHtmlOptions | array | the HTML options for the filter cell tag. | CGridColumn |
footer | string | the footer cell text. | CGridColumn |
footerCellContent | string | Returns the footer cell content. | CGridColumn |
footerHtmlOptions | array | the HTML options for the footer cell tag. | CButtonColumn |
grid | CGridView | the grid view object that owns this column. | CGridColumn |
hasFooter | boolean | whether this column has a footer cell. | CGridColumn |
header | string | the header cell text. | CGridColumn |
headerCellContent | string | Returns the header cell content. | CGridColumn |
headerHtmlOptions | array | the HTML options for the header cell tag. | CButtonColumn |
htmlOptions | array | the HTML options for the data cell tags. | CButtonColumn |
id | string | the ID of this column. | CGridColumn |
template | string | the template that is used to render the content in each data cell. | CButtonColumn |
updateButtonImageUrl | string | the image URL for the update button. | CButtonColumn |
updateButtonLabel | string | the label for the update button. | CButtonColumn |
updateButtonOptions | array | the HTML options for the update button tag. | CButtonColumn |
updateButtonUrl | string | a PHP expression that is evaluated for every update button and whose result is used as the URL for the update button. | CButtonColumn |
viewButtonImageUrl | string | the image URL for the view button. | CButtonColumn |
viewButtonLabel | string | the label for the view button. | CButtonColumn |
viewButtonOptions | array | the HTML options for the view button tag. | CButtonColumn |
viewButtonUrl | string | a PHP expression that is evaluated for every view button and whose result is used as the URL for the view button. | CButtonColumn |
visible | boolean | whether this column is visible. | CGridColumn |
公共方法
方法 | 描述 | 被定义在 |
---|---|---|
__call() | Calls the named method which is not a class method. | CComponent |
__construct() | Constructor. | CGridColumn |
__get() | Returns a property value, an event handler list or a behavior based on its name. | CComponent |
__isset() | Checks if a property value is null. | CComponent |
__set() | Sets value of a component property. | CComponent |
__unset() | Sets a component property to be null. | CComponent |
asa() | Returns the named behavior object. | CComponent |
attachBehavior() | Attaches a behavior to this component. | CComponent |
attachBehaviors() | Attaches a list of behaviors to the component. | CComponent |
attachEventHandler() | Attaches an event handler to an event. | CComponent |
canGetProperty() | Determines whether a property can be read. | CComponent |
canSetProperty() | Determines whether a property can be set. | CComponent |
detachBehavior() | Detaches a behavior from the component. | CComponent |
detachBehaviors() | Detaches all behaviors from the component. | CComponent |
detachEventHandler() | Detaches an existing event handler. | CComponent |
disableBehavior() | Disables an attached behavior. | CComponent |
disableBehaviors() | Disables all behaviors attached to this component. | CComponent |
enableBehavior() | Enables an attached behavior. | CComponent |
enableBehaviors() | Enables all behaviors attached to this component. | CComponent |
evaluateExpression() | Evaluates a PHP expression or callback under the context of this component. | CComponent |
getDataCellContent() | Returns the data cell content. | CButtonColumn |
getEventHandlers() | Returns the list of attached event handlers for an event. | CComponent |
getFilterCellContent() | Returns the filter cell content. | CGridColumn |
getFooterCellContent() | Returns the footer cell content. | CGridColumn |
getHasFooter() | Returns whether this column has a footer cell. This is determined based on whether footer is set. | CGridColumn |
getHeaderCellContent() | Returns the header cell content. | CGridColumn |
hasEvent() | Determines whether an event is defined. | CComponent |
hasEventHandler() | Checks whether the named event has attached handlers. | CComponent |
hasProperty() | Determines whether a property is defined. | CComponent |
init() | Initializes the column. | CButtonColumn |
raiseEvent() | Raises an event. | CComponent |
renderDataCell() | Renders a data cell. | CGridColumn |
renderFilterCell() | Renders the filter cell. | CGridColumn |
renderFooterCell() | Renders the footer cell. | CGridColumn |
renderHeaderCell() | Renders the header cell. | CGridColumn |
受保护的方法
方法 | 描述 | 被定义在 |
---|---|---|
initDefaultButtons() | Initializes the default buttons (view, update and delete). | CButtonColumn |
registerClientScript() | Registers the client scripts for the button column. | CButtonColumn |
renderButton() | Renders a link button. | CButtonColumn |
renderDataCellContent() | Renders the data cell content. | CGridColumn |
renderFilterCellContent() | Renders the filter cell content. | CGridColumn |
renderFooterCellContent() | Renders the footer cell content. | CGridColumn |
renderHeaderCellContent() | Renders the header cell content. | CGridColumn |
属性详情
a javascript function that will be invoked after the delete ajax call.
This property is used only if $this->buttons['delete']['click']
is not set.
The function signature is function(link, success, data)
link
references the delete link.success
status of the ajax call, true if the ajax call was successful, false if the ajax call failed.data
the data returned by the server in case of a successful call or XHR object in case of error.
Example:
array( class'=>'CButtonColumn', 'afterDelete'=>'function(link,success,data){ if(success) alert("Delete completed successfully"); }', ),
the configuration for buttons. Each array element specifies a single button which has the following format:
'buttonID' => array( 'label'=>'...', // text label of the button 'url'=>'...', // a PHP expression for generating the URL of the button 'imageUrl'=>'...', // image URL of the button. If not set or false, a text link is used 'options'=>array(...), // HTML options for the button tag 'click'=>'...', // a JS function to be invoked when the button is clicked 'visible'=>'...', // a PHP expression for determining whether the button is visible )
In the PHP expression for the 'url' option and/or 'visible' option, the variable
$row
refers to the current row number (zero-based), and $data
refers to the data model for
the row.
The PHP expression will be evaluated using evaluateExpression.
A PHP expression can be any PHP code that has a value. To learn more about what an expression is,
please refer to the php manual.
If the 'buttonID' is 'view', 'update' or 'delete' the options will be applied to the default buttons.
Note that in order to display non-default buttons, the template property needs to be configured so that the corresponding button IDs appear as tokens in the template.
the image URL for the delete button. If not set, an integrated image will be used. You may set this property to be false to render a text link instead.
the label for the delete button. Defaults to "Delete". Note that the label will not be HTML-encoded when rendering.
the HTML options for the delete button tag.
a PHP expression that is evaluated for every delete button and whose result is used as the URL for the delete button. In this expression, you can use the following variables:
$row
the row number (zero-based)$data
the data model for the row$this
the column object
A PHP expression can be any PHP code that has a value. To learn more about what an expression is, please refer to the php manual.
the confirmation message to be displayed when delete button is clicked.
By setting this property to be false, no confirmation message will be displayed.
This property is used only if $this->buttons['delete']['click']
is not set.
the HTML options for the footer cell tag.
the HTML options for the header cell tag.
the HTML options for the data cell tags.
the template that is used to render the content in each data cell. These default tokens are recognized: {view}, {update} and {delete}. If the buttons property defines additional buttons, their IDs are also recognized here. For example, if a button named 'preview' is declared in buttons, we can use the token '{preview}' here to specify where to display the button.
the image URL for the update button. If not set, an integrated image will be used. You may set this property to be false to render a text link instead.
the label for the update button. Defaults to "Update". Note that the label will not be HTML-encoded when rendering.
the HTML options for the update button tag.
a PHP expression that is evaluated for every update button and whose result is used as the URL for the update button. In this expression, you can use the following variables:
$row
the row number (zero-based)$data
the data model for the row$this
the column object
A PHP expression can be any PHP code that has a value. To learn more about what an expression is, please refer to the php manual.
the image URL for the view button. If not set, an integrated image will be used. You may set this property to be false to render a text link instead.
the label for the view button. Defaults to "View". Note that the label will not be HTML-encoded when rendering.
the HTML options for the view button tag.
a PHP expression that is evaluated for every view button and whose result is used as the URL for the view button. In this expression, you can use the following variables:
$row
the row number (zero-based)$data
the data model for the row$this
the column object
A PHP expression can be any PHP code that has a value. To learn more about what an expression is, please refer to the php manual.
方法详情
public string getDataCellContent(integer $row)
| ||
$row | integer | the row number (zero-based) |
{return} | string | the data cell content. |
public function getDataCellContent($row)
{
$data=$this->grid->dataProvider->data[$row];
$tr=array();
ob_start();
foreach($this->buttons as $id=>$button)
{
$this->renderButton($id,$button,$row,$data);
$tr['{'.$id.'}']=ob_get_contents();
ob_clean();
}
ob_end_clean();
return strtr($this->template,$tr);
}
Returns the data cell content. This method renders the view, update and delete buttons in the data cell.
public void init()
|
public function init()
{
$this->initDefaultButtons();
foreach($this->buttons as $id=>$button)
{
if(strpos($this->template,'{'.$id.'}')===false)
unset($this->buttons[$id]);
elseif(isset($button['click']))
{
if(!isset($button['options']['class']))
$this->buttons[$id]['options']['class']=$id;
if(!($button['click'] instanceof CJavaScriptExpression))
$this->buttons[$id]['click']=new CJavaScriptExpression($button['click']);
}
}
$this->registerClientScript();
}
Initializes the column. This method registers necessary client script for the button column.
protected void initDefaultButtons()
|
protected function initDefaultButtons()
{
if($this->viewButtonLabel===null)
$this->viewButtonLabel=Yii::t('zii','View');
if($this->updateButtonLabel===null)
$this->updateButtonLabel=Yii::t('zii','Update');
if($this->deleteButtonLabel===null)
$this->deleteButtonLabel=Yii::t('zii','Delete');
if($this->viewButtonImageUrl===null)
$this->viewButtonImageUrl=$this->grid->baseScriptUrl.'/view.png';
if($this->updateButtonImageUrl===null)
$this->updateButtonImageUrl=$this->grid->baseScriptUrl.'/update.png';
if($this->deleteButtonImageUrl===null)
$this->deleteButtonImageUrl=$this->grid->baseScriptUrl.'/delete.png';
if($this->deleteConfirmation===null)
$this->deleteConfirmation=Yii::t('zii','Are you sure you want to delete this item?');
foreach(array('view','update','delete') as $id)
{
$button=array(
'label'=>$this->{$id.'ButtonLabel'},
'url'=>$this->{$id.'ButtonUrl'},
'imageUrl'=>$this->{$id.'ButtonImageUrl'},
'options'=>$this->{$id.'ButtonOptions'},
);
if(isset($this->buttons[$id]))
$this->buttons[$id]=array_merge($button,$this->buttons[$id]);
else
$this->buttons[$id]=$button;
}
if(!isset($this->buttons['delete']['click']))
{
if(is_string($this->deleteConfirmation))
$confirmation="if(!confirm(".CJavaScript::encode($this->deleteConfirmation).")) return false;";
else
$confirmation='';
if(Yii::app()->request->enableCsrfValidation)
{
$csrfTokenName = Yii::app()->request->csrfTokenName;
$csrfToken = Yii::app()->request->csrfToken;
$csrf = "\n\t\tdata:{ '$csrfTokenName':'$csrfToken' },";
}
else
$csrf = '';
if($this->afterDelete===null)
$this->afterDelete='function(){}';
$this->buttons['delete']['click']=<<<EOD
function() {
$confirmation
var th = this,
afterDelete = $this->afterDelete;
jQuery('#{$this->grid->id}').yiiGridView('update', {
type: 'POST',
url: jQuery(this).attr('href'),$csrf
success: function(data) {
jQuery('#{$this->grid->id}').yiiGridView('update');
afterDelete(th, true, data);
},
error: function(XHR) {
return afterDelete(th, false, XHR);
}
});
return false;
}
EOD;
}
}
Initializes the default buttons (view, update and delete).
protected void registerClientScript()
|
protected function registerClientScript()
{
$js=array();
foreach($this->buttons as $id=>$button)
{
if(isset($button['click']))
{
$function=CJavaScript::encode($button['click']);
$class=preg_replace('/\s+/','.',$button['options']['class']);
$js[]="jQuery(document).on('click','#{$this->grid->id} a.{$class}',$function);";
}
}
if($js!==array())
Yii::app()->getClientScript()->registerScript(__CLASS__.'#'.$this->id, implode("\n",$js));
}
Registers the client scripts for the button column.
protected void renderButton(string $id, array $button, integer $row, mixed $data)
| ||
$id | string | the ID of the button |
$button | array | the button configuration which may contain 'label', 'url', 'imageUrl' and 'options' elements. See buttons for more details. |
$row | integer | the row number (zero-based) |
$data | mixed | the data object associated with the row |
protected function renderButton($id,$button,$row,$data)
{
if (isset($button['visible']) && !$this->evaluateExpression($button['visible'],array('row'=>$row,'data'=>$data)))
return;
$label=isset($button['label']) ? $button['label'] : $id;
$url=isset($button['url']) ? $this->evaluateExpression($button['url'],array('data'=>$data,'row'=>$row)) : '#';
$options=isset($button['options']) ? $button['options'] : array();
if(!isset($options['title']))
$options['title']=$label;
if(isset($button['imageUrl']) && is_string($button['imageUrl']))
echo CHtml::link(CHtml::image($button['imageUrl'],$label),$url,$options);
else
echo CHtml::link($label,$url,$options);
}
Renders a link button.