IndexAction
extends Action
in package
IndexAction implements the API endpoint for listing multiple models.
For more details and usage information on IndexAction, see the guide article on rest controllers.
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Table of Contents
Properties
- $behaviors : array<string|int, Behavior>
- $checkAccess : callable|null
- $controller : Controller|Controller|Controller
- $dataFilter : DataFilter|null
- $findModel : callable|null
- $id : string
- $modelClass : string
- $pagination : array<string|int, mixed>|Pagination|false
- $prepareDataProvider : callable|null
- $prepareSearchQuery : callable
- $sort : array<string|int, mixed>|Sort|false
- $uniqueId : string
- $_behaviors : array<string|int, Behavior>|null
- $_events : array<string|int, mixed>
- $_eventWildcards : array<string|int, mixed>
Methods
- __call() : mixed
- Calls the named method which is not a class method.
- __clone() : mixed
- This method is called after the object is created by cloning an existing one.
- __construct() : mixed
- Constructor.
- __get() : mixed
- Returns the value of a component property.
- __isset() : bool
- Checks if a property is set, i.e. defined and not null.
- __set() : mixed
- Sets the value of a component property.
- __unset() : mixed
- Sets a component property to be null.
- attachBehavior() : Behavior
- Attaches a behavior to this component.
- attachBehaviors() : mixed
- Attaches a list of behaviors to the component.
- behaviors() : array<string|int, mixed>
- Returns a list of behaviors that this component should behave as.
- canGetProperty() : bool
- Returns a value indicating whether a property can be read.
- canSetProperty() : bool
- Returns a value indicating whether a property can be set.
- className() : string
- Returns the fully qualified name of this class.
- detachBehavior() : Behavior|null
- Detaches a behavior from the component.
- detachBehaviors() : mixed
- Detaches all behaviors from the component.
- ensureBehaviors() : mixed
- Makes sure that the behaviors declared in [[behaviors()]] are attached to this component.
- findModel() : ActiveRecordInterface
- Returns the data model based on the primary key given.
- getBehavior() : Behavior|null
- Returns the named behavior object.
- getBehaviors() : array<string|int, Behavior>
- Returns all behaviors attached to this component.
- getUniqueId() : string
- Returns the unique ID of this action among the whole application.
- hasEventHandlers() : bool
- Returns a value indicating whether there is any handler attached to the named event.
- hasMethod() : bool
- Returns a value indicating whether a method is defined.
- hasProperty() : bool
- Returns a value indicating whether a property is defined for this component.
- init() : mixed
- Initializes the object.
- off() : bool
- Detaches an existing event handler from this component.
- on() : mixed
- Attaches an event handler to an event.
- run() : ActiveDataProvider
- runWithParams() : mixed
- Runs this action with the specified parameters.
- trigger() : mixed
- Triggers an event.
- afterRun() : mixed
- This method is called right after `run()` is executed.
- beforeRun() : bool
- This method is called right before `run()` is executed.
- prepareDataProvider() : ActiveDataProvider
- Prepares the data provider that should return the requested collection of the models.
- attachBehaviorInternal() : Behavior
- Attaches a behavior to this component.
Properties
$behaviors read-only
public
array<string|int, Behavior>
$behaviors
List of behaviors attached to this component.
$checkAccess
public
callable|null
$checkAccess
a PHP callable that will be called when running an action to determine if the current user has the permission to execute the action. If not set, the access check will not be performed. The signature of the callable should be as follows,
function ($action, $model = null) {
// $model is the requested model instance.
// If null, it means no specific model (e.g. IndexAction)
}
$controller
public
Controller|Controller|Controller
$controller
the controller that owns this action
$dataFilter
public
DataFilter|null
$dataFilter
data filter to be used for the search filter composition. You must set up this field explicitly in order to enable filter processing. For example:
[
'class' => 'yii\data\ActiveDataFilter',
'searchModel' => function () {
return (new \yii\base\DynamicModel(['id' => null, 'name' => null, 'price' => null]))
->addRule('id', 'integer')
->addRule('name', 'trim')
->addRule('name', 'string')
->addRule('price', 'number');
},
]
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$findModel
public
callable|null
$findModel
a PHP callable that will be called to return the model corresponding to the specified primary key value. If not set, [[findModel()]] will be used instead. The signature of the callable should be:
function ($id, $action) {
// $id is the primary key value. If composite primary key, the key values
// will be separated by comma.
// $action is the action object currently running
}
The callable should return the model found, or throw an exception if not found.
$id
public
string
$id
ID of the action
$modelClass
public
string
$modelClass
class name of the model which will be handled by this action. The model class must implement [[ActiveRecordInterface]]. This property must be set.
$pagination
public
array<string|int, mixed>|Pagination|false
$pagination
= []
The pagination to be used by [[prepareDataProvider()]].
If this is false
, it means pagination is disabled.
Note: if a Pagination object is passed, it's params
will be set to the request parameters.
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$prepareDataProvider
public
callable|null
$prepareDataProvider
a PHP callable that will be called to prepare a data provider that should return a collection of the models. If not set, [[prepareDataProvider()]] will be used instead. The signature of the callable should be:
function (IndexAction $action) {
// $action is the action object currently running
}
The callable should return an instance of [[ActiveDataProvider]].
If [[dataFilter]] is set the result of [[DataFilter::build()]] will be passed to the callable as a second parameter. In this case the signature of the callable should be the following:
function (IndexAction $action, mixed $filter) {
// $action is the action object currently running
// $filter the built filter condition
}
$prepareSearchQuery
public
callable
$prepareSearchQuery
a PHP callable that will be called to prepare query in prepareDataProvider. Should return $query. For example:
function ($query, $requestParams) {
$query->andFilterWhere(['id' => 1]);
...
return $query;
}
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$sort
public
array<string|int, mixed>|Sort|false
$sort
= []
The sorting to be used by [[prepareDataProvider()]].
If this is false
, it means sorting is disabled.
Note: if a Sort object is passed, it's params
will be set to the request parameters.
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$uniqueId read-only
public
string
$uniqueId
The unique ID of this action among the whole application.
$_behaviors
private
array<string|int, Behavior>|null
$_behaviors
the attached behaviors (behavior name => behavior). This is null
when not initialized.
$_events
private
array<string|int, mixed>
$_events
= []
the attached event handlers (event name => handlers)
$_eventWildcards
private
array<string|int, mixed>
$_eventWildcards
= []
the event handlers attached for wildcard patterns (event name wildcard => handlers)
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Methods
__call()
Calls the named method which is not a class method.
public
__call(string $name, array<string|int, mixed> $params) : mixed
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.
Parameters
- $name : string
-
the method name
- $params : array<string|int, mixed>
-
method parameters
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Return values
mixed —the method return value
__clone()
This method is called after the object is created by cloning an existing one.
public
__clone() : mixed
It removes all behaviors because they are attached to the old object.
__construct()
Constructor.
public
__construct(string $id, Controller $controller[, array<string|int, mixed> $config = [] ]) : mixed
Parameters
- $id : string
-
the ID of this action
- $controller : Controller
-
the controller that owns this action
- $config : array<string|int, mixed> = []
-
name-value pairs that will be used to initialize the object properties
__get()
Returns the value of a component property.
public
__get(string $name) : mixed
This method will check in the following order and act accordingly:
- a property defined by a getter: return the getter result
- a property of a behavior: return the behavior property value
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing $value = $component->property;
.
Parameters
- $name : string
-
the property name
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Return values
mixed —the property value or the value of a behavior's property
__isset()
Checks if a property is set, i.e. defined and not null.
public
__isset(string $name) : bool
This method will check in the following order and act accordingly:
- a property defined by a setter: return whether the property is set
- a property of a behavior: return whether the property is set
- return
false
for non existing properties
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing isset($component->property)
.
Parameters
- $name : string
-
the property name or the event name
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Return values
bool —whether the named property is set
__set()
Sets the value of a component property.
public
__set(string $name, mixed $value) : mixed
This method will check in the following order and act accordingly:
- a property defined by a setter: set the property value
- an event in the format of "on xyz": attach the handler to the event "xyz"
- a behavior in the format of "as xyz": attach the behavior named as "xyz"
- a property of a behavior: set the behavior property value
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing $component->property = $value;
.
Parameters
- $name : string
-
the property name or the event name
- $value : mixed
-
the property value
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__unset()
Sets a component property to be null.
public
__unset(string $name) : mixed
This method will check in the following order and act accordingly:
- a property defined by a setter: set the property value to be null
- a property of a behavior: set the property value to be null
Do not call this method directly as it is a PHP magic method that
will be implicitly called when executing unset($component->property)
.
Parameters
- $name : string
-
the property name
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attachBehavior()
Attaches a behavior to this component.
public
attachBehavior(string $name, string|array<string|int, mixed>|Behavior $behavior) : Behavior
This method will create the behavior object based on the given configuration. After that, the behavior object will be attached to this component by calling the [[Behavior::attach()]] method.
Parameters
- $name : string
-
the name of the behavior.
- $behavior : string|array<string|int, mixed>|Behavior
-
the behavior configuration. This can be one of the following:
- a [[Behavior]] object
- a string specifying the behavior class
- an object configuration array that will be passed to [[Yii::createObject()]] to create the behavior object.
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Return values
Behavior —the behavior object
attachBehaviors()
Attaches a list of behaviors to the component.
public
attachBehaviors(array<string|int, mixed> $behaviors) : mixed
Each behavior is indexed by its name and should be a [[Behavior]] object, a string specifying the behavior class, or an configuration array for creating the behavior.
Parameters
- $behaviors : array<string|int, mixed>
-
list of behaviors to be attached to the component
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behaviors()
Returns a list of behaviors that this component should behave as.
public
behaviors() : array<string|int, mixed>
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 [[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).
Return values
array<string|int, mixed> —the behavior configurations.
canGetProperty()
Returns a value indicating whether a property can be read.
public
canGetProperty(string $name[, bool $checkVars = true ][, bool $checkBehaviors = true ]) : bool
A property can be read if:
- the class has a getter method associated with the specified name (in this case, property name is case-insensitive);
- the class has a member variable with the specified name (when
$checkVars
is true); - an attached behavior has a readable property of the given name (when
$checkBehaviors
is true).
Parameters
- $name : string
-
the property name
- $checkVars : bool = true
-
whether to treat member variables as properties
- $checkBehaviors : bool = true
-
whether to treat behaviors' properties as properties of this component
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Return values
bool —whether the property can be read
canSetProperty()
Returns a value indicating whether a property can be set.
public
canSetProperty(string $name[, bool $checkVars = true ][, bool $checkBehaviors = true ]) : bool
A property can be written if:
- the class has a setter method associated with the specified name (in this case, property name is case-insensitive);
- the class has a member variable with the specified name (when
$checkVars
is true); - an attached behavior has a writable property of the given name (when
$checkBehaviors
is true).
Parameters
- $name : string
-
the property name
- $checkVars : bool = true
-
whether to treat member variables as properties
- $checkBehaviors : bool = true
-
whether to treat behaviors' properties as properties of this component
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Return values
bool —whether the property can be written
className()
Returns the fully qualified name of this class.
public
static className() : string
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Return values
string —the fully qualified name of this class.
detachBehavior()
Detaches a behavior from the component.
public
detachBehavior(string $name) : Behavior|null
The behavior's [[Behavior::detach()]] method will be invoked.
Parameters
- $name : string
-
the behavior's name.
Return values
Behavior|null —the detached behavior. Null if the behavior does not exist.
detachBehaviors()
Detaches all behaviors from the component.
public
detachBehaviors() : mixed
ensureBehaviors()
Makes sure that the behaviors declared in [[behaviors()]] are attached to this component.
public
ensureBehaviors() : mixed
findModel()
Returns the data model based on the primary key given.
public
findModel(string $id) : ActiveRecordInterface
If the data model is not found, a 404 HTTP exception will be raised.
Parameters
- $id : string
-
the ID of the model to be loaded. If the model has a composite primary key, the ID must be a string of the primary key values separated by commas. The order of the primary key values should follow that returned by the
primaryKey()
method of the model.
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Return values
ActiveRecordInterface —the model found
getBehavior()
Returns the named behavior object.
public
getBehavior(string $name) : Behavior|null
Parameters
- $name : string
-
the behavior name
Return values
Behavior|null —the behavior object, or null if the behavior does not exist
getBehaviors()
Returns all behaviors attached to this component.
public
getBehaviors() : array<string|int, Behavior>
Return values
array<string|int, Behavior> —list of behaviors attached to this component
getUniqueId()
Returns the unique ID of this action among the whole application.
public
getUniqueId() : string
Return values
string —the unique ID of this action among the whole application.
hasEventHandlers()
Returns a value indicating whether there is any handler attached to the named event.
public
hasEventHandlers(string $name) : bool
Parameters
- $name : string
-
the event name
Return values
bool —whether there is any handler attached to the event.
hasMethod()
Returns a value indicating whether a method is defined.
public
hasMethod(string $name[, bool $checkBehaviors = true ]) : bool
A method is defined if:
- the class has a method with the specified name
- an attached behavior has a method with the given name (when
$checkBehaviors
is true).
Parameters
- $name : string
-
the property name
- $checkBehaviors : bool = true
-
whether to treat behaviors' methods as methods of this component
Return values
bool —whether the method is defined
hasProperty()
Returns a value indicating whether a property is defined for this component.
public
hasProperty(string $name[, bool $checkVars = true ][, bool $checkBehaviors = true ]) : bool
A property is defined if:
- the class has a getter or setter method associated with the specified name (in this case, property name is case-insensitive);
- the class has a member variable with the specified name (when
$checkVars
is true); - an attached behavior has a property of the given name (when
$checkBehaviors
is true).
Parameters
- $name : string
-
the property name
- $checkVars : bool = true
-
whether to treat member variables as properties
- $checkBehaviors : bool = true
-
whether to treat behaviors' properties as properties of this component
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Return values
bool —whether the property is defined
init()
Initializes the object.
public
init() : mixed
off()
Detaches an existing event handler from this component.
public
off(string $name[, callable|null $handler = null ]) : bool
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.
Parameters
- $name : string
-
event name
- $handler : callable|null = null
-
the event handler to be removed. If it is null, all handlers attached to the named event will be removed.
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Return values
bool —if a handler is found and detached
on()
Attaches an event handler to an event.
public
on(string $name, callable $handler[, mixed $data = null ][, bool $append = true ]) : mixed
The event handler must be a valid PHP callback. The following are some examples:
function ($event) { ... } // anonymous function
[$object, 'handleClick'] // $object->handleClick()
['Page', 'handleClick'] // Page::handleClick()
'handleClick' // global function handleClick()
The event handler must be defined with the following signature,
function ($event)
where $event
is an [[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.');
});
Parameters
- $name : string
-
the event name
- $handler : callable
-
the event handler
- $data : mixed = null
-
the 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 [[Event::data]].
- $append : bool = true
-
whether 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.
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run()
public
run() : ActiveDataProvider
Return values
ActiveDataProviderrunWithParams()
Runs this action with the specified parameters.
public
runWithParams(array<string|int, mixed> $params) : mixed
This method is mainly invoked by the controller.
Parameters
- $params : array<string|int, mixed>
-
the parameters to be bound to the action's run() method.
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Return values
mixed —the result of the action
trigger()
Triggers an event.
public
trigger(string $name[, Event|null $event = null ]) : mixed
This method represents the happening of an event. It invokes all attached handlers for the event including class-level handlers.
Parameters
- $name : string
-
the event name
- $event : Event|null = null
-
the event instance. If not set, a default [[Event]] object will be created.
afterRun()
This method is called right after `run()` is executed.
protected
afterRun() : mixed
You may override this method to do post-processing work for the action run.
beforeRun()
This method is called right before `run()` is executed.
protected
beforeRun() : bool
You may override this method to do preparation work for the action run. If the method returns false, it will cancel the action.
Return values
bool —whether to run the action.
prepareDataProvider()
Prepares the data provider that should return the requested collection of the models.
protected
prepareDataProvider() : ActiveDataProvider
Return values
ActiveDataProviderattachBehaviorInternal()
Attaches a behavior to this component.
private
attachBehaviorInternal(string|int $name, string|array<string|int, mixed>|Behavior $behavior) : Behavior
Parameters
- $name : string|int
-
the name of the behavior. If this is an integer, it means the behavior is an anonymous one. Otherwise, the behavior is a named one and any existing behavior with the same name will be detached first.
- $behavior : string|array<string|int, mixed>|Behavior
-
the behavior to be attached
Return values
Behavior —the attached behavior.