Controller is the base class of console command classes.
A console controller consists of one or several actions known as sub-commands. Users call a console command by specifying the corresponding route which identifies a controller action. The yii
program is used when calling a console command, like the following:
yii <route> [--param1=value1 --param2 ...]
where <route>
is a route to a controller action and the params will be populated as properties of a command. See options() for details.
Defined 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;
}
public void __construct ( $id, $module, $config = [] ) $id string
The ID of this controller.
$module yii\base\ModuleThe module that this controller belongs to.
$config arrayName-value pairs that will be used to initialize the object properties.
public function __construct($id, $module, $config = [])
{
$this->id = $id;
$this->module = $module;
parent::__construct($config);
}
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) . '::' . $name);
}
Defined in: yii\base\Controller::actions()
Declares external actions for the controller.
This method is meant to be overwritten to declare external actions for the controller. It should return an array, with array keys being action IDs, and array values the corresponding action class names or action configuration arrays. For example,
return [
'action1' => 'app\components\Action1',
'action2' => [
'class' => 'app\components\Action2',
'property1' => 'value1',
'property2' => 'value2',
],
];
Yii::createObject() will be used later to create the requested action using the configuration provided here.
public function actions()
{
return [];
}
Defined in: yii\base\Controller::afterAction()
This method is invoked right after an action is executed.
The method will trigger the EVENT_AFTER_ACTION event. The return value of the method will be used as the action return value.
If you override this method, your code should look like the following:
public function afterAction($action, $result)
{
$result = parent::afterAction($action, $result);
return $result;
}
public mixed afterAction ( $action, $result ) $action yii\base\Action
The action just executed.
$result mixedThe action return result.
return mixedThe processed action result.
public function afterAction($action, $result)
{
$event = new ActionEvent($action);
$event->result = $result;
$this->trigger(self::EVENT_AFTER_ACTION, $event);
return $event->result;
}
Formats a string with ANSI codes.
You may pass additional parameters using the constants defined in yii\helpers\Console.
Example:
echo $this->ansiFormat('This will be red and underlined.', Console::FG_RED, Console::UNDERLINE);
public function ansiFormat($string)
{
if ($this->isColorEnabled()) {
$args = func_get_args();
array_shift($args);
$string = Console::ansiFormat($string, $args);
}
return $string;
}
public function attachBehavior($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, $behavior);
}
}
This method is invoked right before an action is executed.
The method will trigger the EVENT_BEFORE_ACTION event. The return value of the method will determine whether the action should continue to run.
In case the action should not run, the request should be handled inside of the beforeAction
code by either providing the necessary output or redirecting the request. Otherwise the response will be empty.
If you override this method, your code should look like the following:
public function beforeAction($action)
{
if (!parent::beforeAction($action)) {
return false;
}
return true;
}
public function beforeAction($action)
{
$silentExit = $this->silentExitOnException !== null ? $this->silentExitOnException : YII_ENV_TEST;
Yii::$app->errorHandler->silentExitOnException = $silentExit;
return parent::beforeAction($action);
}
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 [];
}
Binds the parameters to the action.
This method is invoked by yii\base\Action when it begins to run with the given parameters. This method will first bind the parameters with the options available to the action. It then validates the given arguments.
public function bindActionParams($action, $params)
{
if ($action instanceof InlineAction) {
$method = new \ReflectionMethod($this, $action->actionMethod);
} else {
$method = new \ReflectionMethod($action, 'run');
}
$paramKeys = array_keys($params);
$args = [];
$missing = [];
$actionParams = [];
$requestedParams = [];
foreach ($method->getParameters() as $i => $param) {
$name = $param->getName();
$key = null;
if (array_key_exists($i, $params)) {
$key = $i;
} elseif (array_key_exists($name, $params)) {
$key = $name;
}
if ($key !== null) {
if ($param->isVariadic()) {
for ($j = array_search($key, $paramKeys); $j < count($paramKeys); $j++) {
$jKey = $paramKeys[$j];
if ($jKey !== $key && !is_int($jKey)) {
break;
}
$args[] = $actionParams[$key][] = $params[$jKey];
unset($params[$jKey]);
}
} else {
if (PHP_VERSION_ID >= 80000) {
$isArray = ($type = $param->getType()) instanceof \ReflectionNamedType && $type->getName() === 'array';
} else {
$isArray = $param->isArray();
}
if ($isArray) {
$params[$key] = $params[$key] === '' ? [] : preg_split('/\s*,\s*/', $params[$key]);
}
$args[] = $actionParams[$key] = $params[$key];
unset($params[$key]);
}
} elseif (
PHP_VERSION_ID >= 70100
&& ($type = $param->getType()) !== null
&& $type instanceof \ReflectionNamedType
&& !$type->isBuiltin()
) {
try {
$this->bindInjectedParams($type, $name, $args, $requestedParams);
} catch (\yii\base\Exception $e) {
throw new Exception($e->getMessage());
}
} elseif ($param->isDefaultValueAvailable()) {
$args[] = $actionParams[$i] = $param->getDefaultValue();
} else {
$missing[] = $name;
}
}
if (!empty($missing)) {
throw new Exception(Yii::t('yii', 'Missing required arguments: {params}', ['params' => implode(', ', $missing)]));
}
if (\Yii::$app->requestedParams === null) {
\Yii::$app->requestedParams = array_merge($actionParams, $requestedParams);
}
return array_merge($args, $params);
}
protected void bindInjectedParams ( ReflectionType $type, $name, &$args, &$requestedParams ) $type ReflectionType
The reflected type of the action parameter.
$name stringThe name of the parameter.
$args arrayThe array of arguments for the action, this function may append items to it.
$requestedParams arrayThe array with requested params, this function may write specific keys to it.
throws yii\base\ErrorExceptionwhen we cannot load a required service.
throws yii\base\InvalidConfigExceptionThrown when there is an error in the DI configuration.
throws yii\di\NotInstantiableExceptionThrown when a definition cannot be resolved to a concrete class (for example an interface type hint) without a proper definition in the container.
final protected function bindInjectedParams(\ReflectionType $type, $name, &$args, &$requestedParams)
{
$typeName = $type->getName();
if (($component = $this->module->get($name, false)) instanceof $typeName) {
$args[] = $component;
$requestedParams[$name] = 'Component: ' . get_class($component) . " \$$name";
} elseif ($this->module->has($typeName) && ($service = $this->module->get($typeName)) instanceof $typeName) {
$args[] = $service;
$requestedParams[$name] = 'Module ' . get_class($this->module) . " DI: $typeName \$$name";
} elseif (\Yii::$container->has($typeName) && ($service = \Yii::$container->get($typeName)) instanceof $typeName) {
$args[] = $service;
$requestedParams[$name] = "Container DI: $typeName \$$name";
} elseif ($type->allowsNull()) {
$args[] = null;
$requestedParams[$name] = "Unavailable service: $name";
} else {
throw new Exception('Could not load required service: ' . $name);
}
}
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, $checkVars)) {
return true;
}
}
}
return false;
}
Deprecated since 2.0.14. On PHP >=5.5, use ::class
instead.
public static function className()
{
return get_called_class();
}
Asks user to confirm by typing y or n.
A typical usage looks like the following:
if ($this->confirm("Are you sure?")) {
echo "user typed yes\n";
} else {
echo "user typed no\n";
}
public boolean confirm ( $message, $default = false ) $message string
To echo out before waiting for user input
$default booleanThis value is returned if no selection is made.
return booleanWhether user confirmed. Will return true if $interactive is false.
public function confirm($message, $default = false)
{
if ($this->interactive) {
return Console::confirm($message, $default);
}
return true;
}
Defined in: yii\base\Controller::createAction()
Creates an action based on the given action ID.
The method first checks if the action ID has been declared in actions(). If so, it will use the configuration declared there to create the action object. If not, it will look for a controller method whose name is in the format of actionXyz
where xyz
is the action ID. If found, an yii\base\InlineAction representing that method will be created and returned.
public function createAction($id)
{
if ($id === '') {
$id = $this->defaultAction;
}
$actionMap = $this->actions();
if (isset($actionMap[$id])) {
return Yii::createObject($actionMap[$id], [$id, $this]);
}
if (preg_match('/^(?:[a-z0-9_]+-)*[a-z0-9_]+$/', $id)) {
$methodName = 'action' . str_replace(' ', '', ucwords(str_replace('-', ' ', $id)));
if (method_exists($this, $methodName)) {
$method = new \ReflectionMethod($this, $methodName);
if ($method->isPublic() && $method->getName() === $methodName) {
return new InlineAction($id, $this, $methodName);
}
}
}
return null;
}
public function detachBehavior($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 function ensureBehaviors()
{
if ($this->_behaviors === null) {
$this->_behaviors = [];
foreach ($this->behaviors() as $name => $behavior) {
$this->attachBehaviorInternal($name, $behavior);
}
}
}
public function findLayoutFile($view)
{
$module = $this->module;
$layout = null;
if (is_string($this->layout)) {
$layout = $this->layout;
} elseif ($this->layout === null) {
while ($module !== null && $module->layout === null) {
$module = $module->module;
}
if ($module !== null && is_string($module->layout)) {
$layout = $module->layout;
}
}
if ($layout === null) {
return false;
}
if (strncmp($layout, '@', 1) === 0) {
$file = Yii::getAlias($layout);
} elseif (strncmp($layout, '/', 1) === 0) {
$file = Yii::$app->getLayoutPath() . DIRECTORY_SEPARATOR . substr($layout, 1);
} else {
$file = $module->getLayoutPath() . DIRECTORY_SEPARATOR . $layout;
}
if (pathinfo($file, PATHINFO_EXTENSION) !== '') {
return $file;
}
$path = $file . '.' . $view->defaultExtension;
if ($view->defaultExtension !== 'php' && !is_file($path)) {
$path = $file . '.php';
}
return $path;
}
Returns the help information for the anonymous arguments for the action.
The returned value should be an array. The keys are the argument names, and the values are the corresponding help information. Each value must be an array of the following structure:
The default implementation will return the help information extracted from the Reflection or DocBlock of the parameters corresponding to the action method.
public function getActionArgsHelp($action)
{
$method = $this->getActionMethodReflection($action);
$tags = $this->parseDocCommentTags($method);
$tags['param'] = isset($tags['param']) ? (array) $tags['param'] : [];
$phpDocParams = [];
foreach ($tags['param'] as $i => $tag) {
if (preg_match('/^(?<type>\S+)(\s+\$(?<name>\w+))?(?<comment>.*)/us', $tag, $matches) === 1) {
$key = empty($matches['name']) ? $i : $matches['name'];
$phpDocParams[$key] = ['type' => $matches['type'], 'comment' => $matches['comment']];
}
}
unset($tags);
$args = [];
foreach ($method->getParameters() as $i => $parameter) {
$type = null;
$comment = '';
if (PHP_MAJOR_VERSION > 5 && $parameter->hasType()) {
$reflectionType = $parameter->getType();
if (PHP_VERSION_ID >= 70100) {
$types = method_exists($reflectionType, 'getTypes') ? $reflectionType->getTypes() : [$reflectionType];
foreach ($types as $key => $reflectionType) {
$types[$key] = $reflectionType->getName();
}
$type = implode('|', $types);
} else {
$type = (string) $reflectionType;
}
}
$key = isset($phpDocParams[$parameter->name]) ? $parameter->name : (isset($phpDocParams[$i]) ? $i : null);
if ($key !== null) {
$comment = $phpDocParams[$key]['comment'];
if ($type === null && !empty($phpDocParams[$key]['type'])) {
$type = $phpDocParams[$key]['type'];
}
}
if ($type === null && $parameter->isDefaultValueAvailable() && $parameter->getDefaultValue() !== null) {
$type = gettype($parameter->getDefaultValue());
}
$args[$parameter->name] = [
'required' => !$parameter->isOptional(),
'type' => $type,
'default' => $parameter->isDefaultValueAvailable() ? $parameter->getDefaultValue() : null,
'comment' => $comment,
];
}
return $args;
}
Returns the detailed help information for the specified action.
public function getActionHelp($action)
{
return $this->parseDocCommentDetail($this->getActionMethodReflection($action));
}
Returns a one-line short summary describing the specified action.
public function getActionHelpSummary($action)
{
if ($action === null) {
return $this->ansiFormat(Yii::t('yii', 'Action not found.'), Console::FG_RED);
}
return $this->parseDocCommentSummary($this->getActionMethodReflection($action));
}
protected function getActionMethodReflection($action)
{
if (!isset($this->_reflections[$action->id])) {
if ($action instanceof InlineAction) {
$this->_reflections[$action->id] = new \ReflectionMethod($this, $action->actionMethod);
} else {
$this->_reflections[$action->id] = new \ReflectionMethod($action, 'run');
}
}
return $this->_reflections[$action->id];
}
Returns the help information for the options for the action.
The returned value should be an array. The keys are the option names, and the values are the corresponding help information. Each value must be an array of the following structure:
The default implementation will return the help information extracted from the doc-comment of the properties corresponding to the action options.
public function getActionOptionsHelp($action)
{
$optionNames = $this->options($action->id);
if (empty($optionNames)) {
return [];
}
$class = new \ReflectionClass($this);
$options = [];
foreach ($class->getProperties() as $property) {
$name = $property->getName();
if (!in_array($name, $optionNames, true)) {
continue;
}
$defaultValue = $property->getValue($this);
$tags = $this->parseDocCommentTags($property);
$name = Inflector::camel2id($name, '-', true);
if (isset($tags['var']) || isset($tags['property'])) {
$doc = isset($tags['var']) ? $tags['var'] : $tags['property'];
if (is_array($doc)) {
$doc = reset($doc);
}
if (preg_match('/^(\S+)(.*)/s', $doc, $matches)) {
$type = $matches[1];
$comment = $matches[2];
} else {
$type = null;
$comment = $doc;
}
$options[$name] = [
'type' => $type,
'default' => $defaultValue,
'comment' => $comment,
];
} else {
$options[$name] = [
'type' => null,
'default' => $defaultValue,
'comment' => '',
];
}
}
return $options;
}
public function getBehavior($name)
{
$this->ensureBehaviors();
return isset($this->_behaviors[$name]) ? $this->_behaviors[$name] : null;
}
public function getBehaviors()
{
$this->ensureBehaviors();
return $this->_behaviors;
}
Returns help information for this controller.
You may override this method to return customized help. The default implementation returns help information retrieved from the PHPDoc comment.
public function getHelp()
{
return $this->parseDocCommentDetail(new \ReflectionClass($this));
}
Returns one-line short summary describing this controller.
You may override this method to return customized summary. The default implementation returns first line from the PHPDoc comment.
public function getHelpSummary()
{
return $this->parseDocCommentSummary(new \ReflectionClass($this));
}
Defined in: yii\base\Controller::getModules()
Returns all ancestor modules of this controller.
The first module in the array is the outermost one (i.e., the application instance), while the last is the innermost one.
public function getModules()
{
$modules = [$this->module];
$module = $this->module;
while ($module->module !== null) {
array_unshift($modules, $module->module);
$module = $module->module;
}
return $modules;
}
Returns properties corresponding to the options for the action id Child classes may override this method to specify possible properties.
public array getOptionValues ( $actionID ) $actionID stringThe action id of the current request
return arrayProperties corresponding to the options for the action
public function getOptionValues($actionID)
{
$properties = [];
foreach ($this->options($this->action->id) as $property) {
$properties[$property] = $this->$property;
}
return $properties;
}
Returns the properties corresponding to the passed options.
public function getPassedOptionValues()
{
$properties = [];
foreach ($this->_passedOptions as $property) {
$properties[$property] = $this->$property;
}
return $properties;
}
Returns the names of valid options passed during execution.
public function getPassedOptions()
{
return $this->_passedOptions;
}
public string getRoute ( ) return string
The route (module ID, controller ID and action ID) of the current request.
public function getRoute()
{
return $this->action !== null ? $this->action->getUniqueId() : $this->getUniqueId();
}
public function getUniqueId()
{
return $this->module instanceof Application ? $this->id : $this->module->getUniqueId() . '/' . $this->id;
}
public function getView()
{
if ($this->_view === null) {
$this->_view = Yii::$app->getView();
}
return $this->_view;
}
public function getViewPath()
{
if ($this->_viewPath === null) {
$this->_viewPath = $this->module->getViewPath() . DIRECTORY_SEPARATOR . $this->id;
}
return $this->_viewPath;
}
public function hasEventHandlers($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);
}
Defined in: yii\base\Controller::init()
Initializes the object.
This method is invoked at the end of the constructor after the object is initialized with the given configuration.
public function init()
{
parent::init();
$this->request = Instance::ensure($this->request, Request::className());
$this->response = Instance::ensure($this->response, Response::className());
}
Returns a value indicating whether ANSI color is enabled.
ANSI color is enabled only if $color is set true or is not set and the terminal supports ANSI color.
public function isColorEnabled($stream = \STDOUT)
{
return $this->color === null ? Console::streamSupportsAnsiColors($stream) : $this->color;
}
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]);
}
}
Returns option alias names.
Child classes may override this method to specify alias options.
See also options().
public array optionAliases ( ) return arrayThe options alias names valid for the action where the keys is alias name for option and value is option name.
public function optionAliases()
{
return [
'h' => 'help',
];
}
Returns the names of valid options for the action (id) An option requires the existence of a public member variable whose name is the option name.
Child classes may override this method to specify possible options.
Note that the values setting via options are not available until beforeAction() is being called.
public string[] options ( $actionID ) $actionID stringThe action id of the current request
return string[]The names of the options valid for the action
public function options($actionID)
{
return ['color', 'interactive', 'help', 'silentExitOnException'];
}
Prompts the user for input and validates it.
public string prompt ( $text, $options = [] ) $text stringPrompt string
$options arrayThe options to validate the input:
An example of how to use the prompt method with a validator function.
$code = $this->prompt('Enter 4-Chars-Pin', ['required' => true, 'validator' => function($input, &$error) {
if (strlen($input) !== 4) {
$error = 'The Pin must be exactly 4 chars!';
return false;
}
return true;
}]);
return string
The user input
public function prompt($text, $options = [])
{
if ($this->interactive) {
return Console::prompt($text, $options);
}
return isset($options['default']) ? $options['default'] : '';
}
Defined in: yii\base\Controller::render()
Renders a view and applies layout if available.
The view to be rendered can be specified in one of the following formats:
To determine which layout should be applied, the following two steps are conducted:
If the layout name does not contain a file extension, it will use the default one .php
.
The view name.
$params arrayThe parameters (name-value pairs) that should be made available in the view. These parameters will not be available in the layout.
return stringThe rendering result.
throws yii\base\InvalidArgumentExceptionif the view file or the layout file does not exist.
public function render($view, $params = [])
{
$content = $this->getView()->render($view, $params, $this);
return $this->renderContent($content);
}
public string renderContent ( $content ) $content string
The static string being rendered
return stringThe rendering result of the layout with the given static string as the $content
variable. If the layout is disabled, the string will be returned back.
public function renderContent($content)
{
$layoutFile = $this->findLayoutFile($this->getView());
if ($layoutFile !== false) {
return $this->getView()->renderFile($layoutFile, ['content' => $content], $this);
}
return $content;
}
public function renderFile($file, $params = [])
{
return $this->getView()->renderFile($file, $params, $this);
}
public function renderPartial($view, $params = [])
{
return $this->getView()->render($view, $params, $this);
}
Defined in: yii\base\Controller::run()
Runs a request specified in terms of a route.
The route can be either an ID of an action within this controller or a complete route consisting of module IDs, controller ID and action ID. If the route starts with a slash '/', the parsing of the route will start from the application; otherwise, it will start from the parent module of this controller.
See also runAction().
public mixed run ( $route, $params = [] ) $route stringThe route to be handled, e.g., 'view', 'comment/view', '/admin/comment/view'.
$params arrayThe parameters to be passed to the action.
return mixedThe result of the action.
public function run($route, $params = [])
{
$pos = strpos($route, '/');
if ($pos === false) {
return $this->runAction($route, $params);
} elseif ($pos > 0) {
return $this->module->runAction($route, $params);
}
return Yii::$app->runAction(ltrim($route, '/'), $params);
}
Runs an action with the specified action ID and parameters.
If the action ID is empty, the method will use $defaultAction.
See also createAction().
public integer runAction ( $id, $params = [] ) $id stringThe ID of the action to be executed.
$params arrayThe parameters (name-value pairs) to be passed to the action.
return integerThe status of the action execution. 0 means normal, other values mean abnormal.
throws yii\base\InvalidRouteExceptionif the requested action ID cannot be resolved into an action successfully.
throws yii\console\Exceptionif there are unknown options or missing arguments
public function runAction($id, $params = [])
{
if (!empty($params)) {
$options = $this->options($id === '' ? $this->defaultAction : $id);
if (isset($params['_aliases'])) {
$optionAliases = $this->optionAliases();
foreach ($params['_aliases'] as $name => $value) {
if (array_key_exists($name, $optionAliases)) {
$params[$optionAliases[$name]] = $value;
} else {
$message = Yii::t('yii', 'Unknown alias: -{name}', ['name' => $name]);
if (!empty($optionAliases)) {
$aliasesAvailable = [];
foreach ($optionAliases as $alias => $option) {
$aliasesAvailable[] = '-' . $alias . ' (--' . $option . ')';
}
$message .= '. ' . Yii::t('yii', 'Aliases available: {aliases}', [
'aliases' => implode(', ', $aliasesAvailable)
]);
}
throw new Exception($message);
}
}
unset($params['_aliases']);
}
foreach ($params as $name => $value) {
if (!in_array($name, $options, true) && strpos($name, '-') !== false) {
$kebabName = $name;
$altName = lcfirst(Inflector::id2camel($kebabName));
if (in_array($altName, $options, true)) {
$name = $altName;
}
}
if (in_array($name, $options, true)) {
$default = $this->$name;
if (is_array($default) && is_string($value)) {
$this->$name = preg_split('/\s*,\s*(?![^()]*\))/', $value);
} elseif ($default !== null) {
settype($value, gettype($default));
$this->$name = $value;
} else {
$this->$name = $value;
}
$this->_passedOptions[] = $name;
unset($params[$name]);
if (isset($kebabName)) {
unset($params[$kebabName]);
}
} elseif (!is_int($name)) {
$message = Yii::t('yii', 'Unknown option: --{name}', ['name' => $name]);
if (!empty($options)) {
$message .= '. ' . Yii::t('yii', 'Options available: {options}', ['options' => '--' . implode(', --', $options)]);
}
throw new Exception($message);
}
}
}
if ($this->help) {
$route = $this->getUniqueId() . '/' . $id;
return Yii::$app->runAction('help', [$route]);
}
return parent::runAction($id, $params);
}
Gives the user an option to choose from. Giving '?' as an input will show a list of options to choose from and their explanations.
public string select ( $prompt, $options = [], $default = null ) $prompt stringThe prompt message
$options arrayKey-value array of options to choose from
$default string|nullValue to use when the user doesn't provide an option. If the default is null
, the user is required to select an option.
An option character the user chose
Version Description 2.0.49 Added the $default argument public function select($prompt, $options = [], $default = null)
{
if ($this->interactive) {
return Console::select($prompt, $options, $default);
}
return $default;
}
public function setView($view)
{
$this->_view = $view;
}
public function setViewPath($path)
{
$this->_viewPath = Yii::getAlias($path);
}
Prints a string to STDERR.
You may optionally format the string with ANSI codes by passing additional parameters using the constants defined in yii\helpers\Console.
Example:
$this->stderr('This will be red and underlined.', Console::FG_RED, Console::UNDERLINE);
public function stderr($string)
{
if ($this->isColorEnabled(\STDERR)) {
$args = func_get_args();
array_shift($args);
$string = Console::ansiFormat($string, $args);
}
return fwrite(\STDERR, $string);
}
Prints a string to STDOUT.
You may optionally format the string with ANSI codes by passing additional parameters using the constants defined in yii\helpers\Console.
Example:
$this->stdout('This will be red and underlined.', Console::FG_RED, Console::UNDERLINE);
public function stdout($string)
{
if ($this->isColorEnabled()) {
$args = func_get_args();
array_shift($args);
$string = Console::ansiFormat($string, $args);
}
return Console::stdout($string);
}
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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