LinkSorter renders a list of sort links for the given sort definition.
LinkSorter will generate a hyperlink for every attribute declared in $sort.
For more details and usage information on LinkSorter, see the guide article on sorting.
Property Details Method DetailsDefined in: yii\base\Component::__call()
Calls the named method which is not a class method.
This method will check if any attached behavior has the named method and will execute it if available.
Do not call this method directly as it is a PHP magic method that will be implicitly called when an unknown method is being invoked.
public function __call($name, $params)
{
$this->ensureBehaviors();
foreach ($this->_behaviors as $object) {
if ($object->hasMethod($name)) {
return call_user_func_array([$object, $name], $params);
}
}
throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
}
Defined in: yii\base\Component::__clone()
This method is called after the object is created by cloning an existing one.
It removes all behaviors because they are attached to the old object.
public function __clone()
{
$this->_events = [];
$this->_eventWildcards = [];
$this->_behaviors = null;
}
Defined in: yii\base\BaseObject::__construct()
Constructor.
The default implementation does two things:
$config
.If this method is overridden in a child class, it is recommended that
$config
here.Name-value pairs that will be used to initialize the object properties
public function __construct($config = [])
{
if (!empty($config)) {
Yii::configure($this, $config);
}
$this->init();
}
Defined in: yii\base\Component::__get()
Returns the value of a component property.
This method will check in the following order and act accordingly:
Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $value = $component->property;
.
See also __set().
public function __get($name)
{
$getter = 'get' . $name;
if (method_exists($this, $getter)) {
return $this->$getter();
}
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canGetProperty($name)) {
return $behavior->$name;
}
}
if (method_exists($this, 'set' . $name)) {
throw new InvalidCallException('Getting write-only property: ' . get_class($this) . '::' . $name);
}
throw new UnknownPropertyException('Getting unknown property: ' . get_class($this) . '::' . $name);
}
Defined in: yii\base\Component::__isset()
Checks if a property is set, i.e. defined and not null.
This method will check in the following order and act accordingly:
false
for non existing propertiesDo not call this method directly as it is a PHP magic method that will be implicitly called when executing isset($component->property)
.
See also https://www.php.net/manual/en/function.isset.php.
public function __isset($name)
{
$getter = 'get' . $name;
if (method_exists($this, $getter)) {
return $this->$getter() !== null;
}
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canGetProperty($name)) {
return $behavior->$name !== null;
}
}
return false;
}
Defined in: yii\base\Component::__set()
Sets the value of a component property.
This method will check in the following order and act accordingly:
Do not call this method directly as it is a PHP magic method that will be implicitly called when executing $component->property = $value;
.
See also __get().
public function __set($name, $value)
{
$setter = 'set' . $name;
if (method_exists($this, $setter)) {
$this->$setter($value);
return;
} elseif (strncmp($name, 'on ', 3) === 0) {
$this->on(trim(substr($name, 3)), $value);
return;
} elseif (strncmp($name, 'as ', 3) === 0) {
$name = trim(substr($name, 3));
if ($value instanceof Behavior) {
$this->attachBehavior($name, $value);
} elseif ($value instanceof \Closure) {
$this->attachBehavior($name, call_user_func($value));
} elseif (isset($value['__class']) && is_subclass_of($value['__class'], Behavior::class)) {
$this->attachBehavior($name, Yii::createObject($value));
} elseif (!isset($value['__class']) && isset($value['class']) && is_subclass_of($value['class'], Behavior::class)) {
$this->attachBehavior($name, Yii::createObject($value));
} elseif (is_string($value) && is_subclass_of($value, Behavior::class, true)) {
$this->attachBehavior($name, Yii::createObject($value));
} else {
throw new InvalidConfigException('Class is not of type ' . Behavior::class . ' or its subclasses');
}
return;
}
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canSetProperty($name)) {
$behavior->$name = $value;
return;
}
}
if (method_exists($this, 'get' . $name)) {
throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
}
throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);
}
Defined in: yii\base\Component::__unset()
Sets a component property to be null.
This method will check in the following order and act accordingly:
Do not call this method directly as it is a PHP magic method that will be implicitly called when executing unset($component->property)
.
See also https://www.php.net/manual/en/function.unset.php.
public function __unset($name)
{
$setter = 'set' . $name;
if (method_exists($this, $setter)) {
$this->$setter(null);
return;
}
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canSetProperty($name)) {
$behavior->$name = null;
return;
}
}
throw new InvalidCallException('Unsetting an unknown or read-only property: ' . get_class($this) . '::' . $name);
}
Defined in: yii\base\Widget::afterRun()
This method is invoked right after a widget is executed.
The method will trigger the EVENT_AFTER_RUN event. The return value of the method will be used as the widget return value.
If you override this method, your code should look like the following:
public function afterRun($result)
{
$result = parent::afterRun($result);
return $result;
}
public mixed afterRun ( $result ) $result mixed
The widget return result.
return mixedThe processed widget result.
public function afterRun($result)
{
$event = new WidgetEvent();
$event->result = $result;
$this->trigger(self::EVENT_AFTER_RUN, $event);
return $event->result;
}
public function attachBehavior($name, $behavior)
{
$this->ensureBehaviors();
return $this->attachBehaviorInternal($name, $behavior);
}
public void attachBehaviors ( $behaviors ) $behaviors array
List of behaviors to be attached to the component
public function attachBehaviors($behaviors)
{
$this->ensureBehaviors();
foreach ($behaviors as $name => $behavior) {
$this->attachBehaviorInternal($name, $behavior);
}
}
Defined in: yii\base\Widget::beforeRun()
This method is invoked right before the widget is executed.
The method will trigger the EVENT_BEFORE_RUN event. The return value of the method will determine whether the widget should continue to run.
When overriding this method, make sure you call the parent implementation like the following:
public function beforeRun()
{
if (!parent::beforeRun()) {
return false;
}
return true;
}
public function beforeRun()
{
$event = new WidgetEvent();
$this->trigger(self::EVENT_BEFORE_RUN, $event);
return $event->isValid;
}
Defined in: yii\base\Widget::begin()
Begins a widget.
This method creates an instance of the calling class. It will apply the configuration to the created instance. A matching end() call should be called later. As some widgets may use output buffering, the end() call should be made in the same view to avoid breaking the nesting of output buffers.
See also end().
public static static begin ( $config = [] ) $config arrayName-value pairs that will be used to initialize the object properties
return yii\base\WidgetThe newly created widget instance
public static function begin($config = [])
{
$config['class'] = get_called_class();
$widget = Yii::createObject($config);
self::$stack[] = $widget;
self::$_resolvedClasses[get_called_class()] = get_class($widget);
return $widget;
}
Defined in: yii\base\Component::behaviors()
Returns a list of behaviors that this component should behave as.
Child classes may override this method to specify the behaviors they want to behave as.
The return value of this method should be an array of behavior objects or configurations indexed by behavior names. A behavior configuration can be either a string specifying the behavior class or an array of the following structure:
'behaviorName' => [
'class' => 'BehaviorClass',
'property1' => 'value1',
'property2' => 'value2',
]
Note that a behavior class must extend from yii\base\Behavior. Behaviors can be attached using a name or anonymously. When a name is used as the array key, using this name, the behavior can later be retrieved using getBehavior() or be detached using detachBehavior(). Anonymous behaviors can not be retrieved or detached.
Behaviors declared in this method will be attached to the component automatically (on demand).
public function behaviors()
{
return [];
}
Defined in: yii\base\Component::canGetProperty()
Returns a value indicating whether a property can be read.
A property can be read if:
$checkVars
is true);$checkBehaviors
is true).See also canSetProperty().
public boolean canGetProperty ( $name, $checkVars = true, $checkBehaviors = true ) $name stringThe property name
$checkVars booleanWhether to treat member variables as properties
$checkBehaviors booleanWhether to treat behaviors' properties as properties of this component
return booleanWhether the property can be read
public function canGetProperty($name, $checkVars = true, $checkBehaviors = true)
{
if (method_exists($this, 'get' . $name) || $checkVars && property_exists($this, $name)) {
return true;
} elseif ($checkBehaviors) {
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canGetProperty($name, $checkVars)) {
return true;
}
}
}
return false;
}
Defined in: yii\base\Component::canSetProperty()
Returns a value indicating whether a property can be set.
A property can be written if:
$checkVars
is true);$checkBehaviors
is true).See also canGetProperty().
public boolean canSetProperty ( $name, $checkVars = true, $checkBehaviors = true ) $name stringThe property name
$checkVars booleanWhether to treat member variables as properties
$checkBehaviors booleanWhether to treat behaviors' properties as properties of this component
return booleanWhether the property can be written
public function canSetProperty($name, $checkVars = true, $checkBehaviors = true)
{
if (method_exists($this, 'set' . $name) || $checkVars && property_exists($this, $name)) {
return true;
} elseif ($checkBehaviors) {
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->canSetProperty($name, $checkVars)) {
return true;
}
}
}
return false;
}
Deprecated since 2.0.14. On PHP >=5.5, use ::class
instead.
public static function className()
{
return get_called_class();
}
public function detachBehavior($name)
{
$this->ensureBehaviors();
if (isset($this->_behaviors[$name])) {
$behavior = $this->_behaviors[$name];
unset($this->_behaviors[$name]);
$behavior->detach();
return $behavior;
}
return null;
}
public function detachBehaviors()
{
$this->ensureBehaviors();
foreach ($this->_behaviors as $name => $behavior) {
$this->detachBehavior($name);
}
}
public static function end()
{
if (!empty(self::$stack)) {
$widget = array_pop(self::$stack);
$calledClass = self::$_resolvedClasses[get_called_class()] ?? get_called_class();
if (get_class($widget) === $calledClass) {
if ($widget->beforeRun()) {
$result = $widget->run();
$result = $widget->afterRun($result);
echo $result;
}
return $widget;
}
throw new InvalidCallException('Expecting end() of ' . get_class($widget) . ', found ' . get_called_class());
}
throw new InvalidCallException('Unexpected ' . get_called_class() . '::end() call. A matching begin() is not found.');
}
public function ensureBehaviors()
{
if ($this->_behaviors === null) {
$this->_behaviors = [];
foreach ($this->behaviors() as $name => $behavior) {
$this->attachBehaviorInternal($name, $behavior);
}
}
}
public function getBehavior($name)
{
$this->ensureBehaviors();
return isset($this->_behaviors[$name]) ? $this->_behaviors[$name] : null;
}
public function getBehaviors()
{
$this->ensureBehaviors();
return $this->_behaviors;
}
public string|null getId ( $autoGenerate = true ) $autoGenerate boolean
Whether to generate an ID if it is not set previously
return string|nullID of the widget.
public function getId($autoGenerate = true)
{
if ($autoGenerate && $this->_id === null) {
$this->_id = static::$autoIdPrefix . static::$counter++;
}
return $this->_id;
}
Defined in: yii\base\Widget::getView()
Returns the view object that can be used to render views or view files.
The render() and renderFile() methods will use this view object to implement the actual view rendering. If not set, it will default to the "view" application component.
public function getView()
{
if ($this->_view === null) {
$this->_view = Yii::$app->getView();
}
return $this->_view;
}
Defined in: yii\base\Widget::getViewPath()
Returns the directory containing the view files for this widget.
The default implementation returns the 'views' subdirectory under the directory containing the widget class file.
public function getViewPath()
{
$class = new ReflectionClass($this);
return dirname($class->getFileName()) . DIRECTORY_SEPARATOR . 'views';
}
public function hasEventHandlers($name)
{
$this->ensureBehaviors();
if (!empty($this->_events[$name])) {
return true;
}
foreach ($this->_eventWildcards as $wildcard => $handlers) {
if (!empty($handlers) && StringHelper::matchWildcard($wildcard, $name)) {
return true;
}
}
return Event::hasHandlers($this, $name);
}
Defined in: yii\base\Component::hasMethod()
Returns a value indicating whether a method is defined.
A method is defined if:
$checkBehaviors
is true).The property name
$checkBehaviors booleanWhether to treat behaviors' methods as methods of this component
return booleanWhether the method is defined
public function hasMethod($name, $checkBehaviors = true)
{
if (method_exists($this, $name)) {
return true;
} elseif ($checkBehaviors) {
$this->ensureBehaviors();
foreach ($this->_behaviors as $behavior) {
if ($behavior->hasMethod($name)) {
return true;
}
}
}
return false;
}
Defined in: yii\base\Component::hasProperty()
Returns a value indicating whether a property is defined for this component.
A property is defined if:
$checkVars
is true);$checkBehaviors
is true).See also:
public boolean hasProperty ( $name, $checkVars = true, $checkBehaviors = true ) $name stringThe property name
$checkVars booleanWhether to treat member variables as properties
$checkBehaviors booleanWhether to treat behaviors' properties as properties of this component
return booleanWhether the property is defined
public function hasProperty($name, $checkVars = true, $checkBehaviors = true)
{
return $this->canGetProperty($name, $checkVars, $checkBehaviors) || $this->canSetProperty($name, false, $checkBehaviors);
}
Initializes the sorter.
public function init()
{
parent::init();
if ($this->sort === null) {
throw new InvalidConfigException('The "sort" property must be set.');
}
}
Defined in: yii\base\Component::off()
Detaches an existing event handler from this component.
This method is the opposite of on().
Note: in case wildcard pattern is passed for event name, only the handlers registered with this wildcard will be removed, while handlers registered with plain names matching this wildcard will remain.
See also on().
public boolean off ( $name, $handler = null ) $name stringEvent name
$handler callable|nullThe event handler to be removed. If it is null, all handlers attached to the named event will be removed.
return booleanIf a handler is found and detached
public function off($name, $handler = null)
{
$this->ensureBehaviors();
if (empty($this->_events[$name]) && empty($this->_eventWildcards[$name])) {
return false;
}
if ($handler === null) {
unset($this->_events[$name], $this->_eventWildcards[$name]);
return true;
}
$removed = false;
if (isset($this->_events[$name])) {
foreach ($this->_events[$name] as $i => $event) {
if ($event[0] === $handler) {
unset($this->_events[$name][$i]);
$removed = true;
}
}
if ($removed) {
$this->_events[$name] = array_values($this->_events[$name]);
return true;
}
}
if (isset($this->_eventWildcards[$name])) {
foreach ($this->_eventWildcards[$name] as $i => $event) {
if ($event[0] === $handler) {
unset($this->_eventWildcards[$name][$i]);
$removed = true;
}
}
if ($removed) {
$this->_eventWildcards[$name] = array_values($this->_eventWildcards[$name]);
if (empty($this->_eventWildcards[$name])) {
unset($this->_eventWildcards[$name]);
}
}
}
return $removed;
}
Defined in: yii\base\Component::on()
Attaches an event handler to an event.
The event handler must be a valid PHP callback. The following are some examples:
function ($event) { ... }
[$object, 'handleClick']
['Page', 'handleClick']
'handleClick'
The event handler must be defined with the following signature,
function ($event)
where $event
is an yii\base\Event object which includes parameters associated with the event.
Since 2.0.14 you can specify event name as a wildcard pattern:
$component->on('event.group.*', function ($event) {
Yii::trace($event->name . ' is triggered.');
});
See also off().
public void on ( $name, $handler, $data = null, $append = true ) $name stringThe event name
$handler callableThe event handler
$data mixedThe data to be passed to the event handler when the event is triggered. When the event handler is invoked, this data can be accessed via yii\base\Event::$data.
$append booleanWhether to append new event handler to the end of the existing handler list. If false, the new handler will be inserted at the beginning of the existing handler list.
public function on($name, $handler, $data = null, $append = true)
{
$this->ensureBehaviors();
if (strpos($name, '*') !== false) {
if ($append || empty($this->_eventWildcards[$name])) {
$this->_eventWildcards[$name][] = [$handler, $data];
} else {
array_unshift($this->_eventWildcards[$name], [$handler, $data]);
}
return;
}
if ($append || empty($this->_events[$name])) {
$this->_events[$name][] = [$handler, $data];
} else {
array_unshift($this->_events[$name], [$handler, $data]);
}
}
Defined in: yii\base\Widget::render()
Renders a view.
The view to be rendered can be specified in one of the following formats:
If the view name does not contain a file extension, it will use the default one .php
.
public function render($view, $params = [])
{
return $this->getView()->render($view, $params, $this);
}
public function renderFile($file, $params = [])
{
return $this->getView()->renderFile($file, $params, $this);
}
Renders the sort links.
protected function renderSortLinks()
{
$attributes = empty($this->attributes) ? array_keys($this->sort->attributes) : $this->attributes;
$links = [];
foreach ($attributes as $name) {
$links[] = $this->sort->link($name, $this->linkOptions);
}
return Html::ul($links, array_merge($this->options, ['encode' => false]));
}
Executes the widget.
This method renders the sort links.
public function run()
{
echo $this->renderSortLinks();
}
public void setId ( $value ) $value string
Id of the widget.
public function setId($value)
{
$this->_id = $value;
}
public void setView ( $view ) $view yii\base\View
The view object that can be used to render views or view files.
public function setView($view)
{
$this->_view = $view;
}
Defined in: yii\base\Component::trigger()
Triggers an event.
This method represents the happening of an event. It invokes all attached handlers for the event including class-level handlers.
public function trigger($name, ?Event $event = null)
{
$this->ensureBehaviors();
$eventHandlers = [];
foreach ($this->_eventWildcards as $wildcard => $handlers) {
if (StringHelper::matchWildcard($wildcard, $name)) {
$eventHandlers[] = $handlers;
}
}
if (!empty($this->_events[$name])) {
$eventHandlers[] = $this->_events[$name];
}
if (!empty($eventHandlers)) {
$eventHandlers = call_user_func_array('array_merge', $eventHandlers);
if ($event === null) {
$event = new Event();
}
if ($event->sender === null) {
$event->sender = $this;
}
$event->handled = false;
$event->name = $name;
foreach ($eventHandlers as $handler) {
$event->data = $handler[1];
call_user_func($handler[0], $event);
if ($event->handled) {
return;
}
}
}
Event::trigger($this, $name, $event);
}
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