/**
* Generates a hyperlink that can be clicked to cause sorting.
* @param string the attribute name. This must be the actual attribute name, not alias.
* If it is an attribute of a related AR object, the name should be prefixed with
* the relation name (e.g. 'author.name', where 'author' is the relation name).
* @param string the link label. If null, the label will be determined according
* to the attribute (see {@link CActiveRecord::getAttributeLabel}).
* @param array additional HTML attributes for the hyperlink tag
* @return string the generated hyperlink
*/
public function link($attribute, $label = null, $htmlOptions = array())
{
$directions = $this->getDirections();
if (isset($directions[$attribute])) {
$direction = $directions[$attribute] == 'asc' ? 'desc' : 'asc';
unset($directions[$attribute]);
} else {
$direction = 'asc';
}
if ($this->multiSort) {
$directions = array_merge(array($attribute => $direction), $directions);
} else {
$directions = array($attribute => $direction);
}
if ($label === null) {
$label = $attribute;
}
$url = $this->createUrl(Yii::app()->getController(), $directions);
if ($this->postVars) {
if (self::$generateJs) {
$data = CJSON::encode($this->postVars);
$script = '
function setSort(_field, _direction) {
var data = ' . $data . ';
data.' . $this->sortVar . ' = _field + "." + _direction;
' . (Yii::app()->getRequest()->getParam('page') ? 'data.page = ' . Yii::app()->getRequest()->getParam('page') : '') . '
' . (Yii::app()->getRequest()->getParam('pageSize') ? 'data.pageSize = ' . Yii::app()->getRequest()->getParam('pageSize') : '') . '
$.post("' . Yii::app()->createUrl($this->route) . '", data, function(responseText) {
$("div.ui-layout-center").html(responseText);
init();
});
}
';
Yii::app()->getClientScript()->registerScript('Sort_setSort', $script);
self::$generateJs = false;
}
return CHtml::link($label, 'javascript:void(0)', array('onclick' => 'setSort("' . $attribute . '", "' . $direction . '");'));
} else {
return $this->createLink($attribute, $label, $url, $htmlOptions);
}
}
