# Abstract Class yii\web\CompositeUrlRule

Inheritance | yii\web\CompositeUrlRule » yii\base\BaseObject
Implements | yii\base\Configurable, yii\web\UrlRuleInterface
Subclasses | yii\rest\UrlRule, yii\web\GroupUrlRule
Available since version | 2.0
Source Code | https://github.com/yiisoft/yii2/blob/master/framework/web/CompositeUrlRule.php

CompositeUrlRule is the base class for URL rule classes that consist of multiple simpler rules.

## Public Properties

Hide inherited properties

Property | Type | Description | Defined By
--- | --- | --- | ---
$createStatus | integer|null | Status of the URL creation after the last createUrl() call. | yii\web\CompositeUrlRule
$createUrlStatus | integer|null | Status of the URL creation after the last createUrl() call. | yii\web\CompositeUrlRule
$rules | yii\web\UrlRuleInterface[] | The URL rules contained in this composite rule. | yii\web\CompositeUrlRule

## Protected Properties

Hide inherited properties

Property | Type | Description | Defined By
--- | --- | --- | ---

## Public Methods

Hide inherited methods

Method | Description | Defined By
--- | --- | ---
__call() | Calls the named method which is not a class method. | yii\base\BaseObject
__construct() | Constructor. | yii\base\BaseObject
__get() | Returns the value of an object property. | yii\base\BaseObject
__isset() | Checks if a property is set, i.e. defined and not null. | yii\base\BaseObject
__set() | Sets value of an object property. | yii\base\BaseObject
__unset() | Sets an object property to null. | yii\base\BaseObject
canGetProperty() | Returns a value indicating whether a property can be read. | yii\base\BaseObject
canSetProperty() | Returns a value indicating whether a property can be set. | yii\base\BaseObject
className() | Returns the fully qualified name of this class. | yii\base\BaseObject
createUrl() | Creates a URL according to the given route and parameters. | yii\web\CompositeUrlRule
getCreateUrlStatus() | Returns status of the URL creation after the last createUrl() call. | yii\web\CompositeUrlRule
hasMethod() | Returns a value indicating whether a method is defined. | yii\base\BaseObject
hasProperty() | Returns a value indicating whether a property is defined. | yii\base\BaseObject
init() | Initializes the object. | yii\web\CompositeUrlRule
parseRequest() | Parses the given request and returns the corresponding route and parameters. | yii\web\CompositeUrlRule

## Protected Methods

Hide inherited methods

Method | Description | Defined By
--- | --- | ---
createRules() | Creates the URL rules that should be contained within this composite rule. | yii\web\CompositeUrlRule
iterateRules() | Iterates through specified rules and calls createUrl() for each of them. | yii\web\CompositeUrlRule

## Property Details

Hide inherited properties

$createStatus protected property (available since version 2.0.12)

Status of the URL creation after the last createUrl() call.

protected integer|null $createStatus = null
$createUrlStatus public property

Status of the URL creation after the last createUrl() call. `null` if rule does not provide info about create status.

public integer|null $createUrlStatus = null
$rules protected property

The URL rules contained in this composite rule. This property is set in init() by the return value of createRules().

protected yii\web\UrlRuleInterface[] $rules = []

## Method Details

Hide inherited methods

__call() public method

Defined in: yii\base\BaseObject::__call()

Calls the named method which is not a class method.

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 mixed __call ( $name, $params )
$name | string | The method name
$params | array | Method parameters
return | mixed | The method return value
throws | yii\base\UnknownMethodException | when calling unknown method

Source code

                    public function __call($name, $params)
    {
        throw new UnknownMethodException('Calling unknown method: ' . get_class($this) . "::$name()");
    }

__construct() public method

Defined in: yii\base\BaseObject::__construct()

Constructor.

The default implementation does two things:

- Initializes the object with the given configuration `$config`.
- Call init().

If this method is overridden in a child class, it is recommended that

- the last parameter of the constructor is a configuration array, like `$config` here.
- call the parent implementation at the end of the constructor.

public void __construct ( $config = [] )
$config | array | Name-value pairs that will be used to initialize the object properties

Source code

                    public function __construct($config = [])
    {
        if (!empty($config)) {
            Yii::configure($this, $config);
        }
        $this->init();
    }

__get() public method

Defined in: yii\base\BaseObject::__get()

Returns the value of an object property.

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing `$value = $object->property;`.

See also __set().

public mixed __get ( $name )
$name | string | The property name
return | mixed | The property value
throws | yii\base\UnknownPropertyException | if the property is not defined
throws | yii\base\InvalidCallException | if the property is write-only

Source code

                    public function __get($name)
    {
        $getter = 'get' . $name;
        if (method_exists($this, $getter)) {
            return $this->$getter();
        } elseif (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);
    }

__isset() public method

Defined in: yii\base\BaseObject::__isset()

Checks if a property is set, i.e. defined and not null.

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing `isset($object->property)`.

Note that if the property is not defined, false will be returned.

See also https://www.php.net/manual/en/function.isset.php.

public boolean __isset ( $name )
$name | string | The property name or the event name
return | boolean | Whether the named property is set (not null).

Source code

                    public function __isset($name)
    {
        $getter = 'get' . $name;
        if (method_exists($this, $getter)) {
            return $this->$getter() !== null;
        }
        return false;
    }

__set() public method

Defined in: yii\base\BaseObject::__set()

Sets value of an object property.

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing `$object->property = $value;`.

See also __get().

public void __set ( $name, $value )
$name | string | The property name or the event name
$value | mixed | The property value
throws | yii\base\UnknownPropertyException | if the property is not defined
throws | yii\base\InvalidCallException | if the property is read-only

Source code

                    public function __set($name, $value)
    {
        $setter = 'set' . $name;
        if (method_exists($this, $setter)) {
            $this->$setter($value);
        } elseif (method_exists($this, 'get' . $name)) {
            throw new InvalidCallException('Setting read-only property: ' . get_class($this) . '::' . $name);
        } else {
            throw new UnknownPropertyException('Setting unknown property: ' . get_class($this) . '::' . $name);
        }
    }

__unset() public method

Defined in: yii\base\BaseObject::__unset()

Sets an object property to null.

Do not call this method directly as it is a PHP magic method that will be implicitly called when executing `unset($object->property)`.

Note that if the property is not defined, this method will do nothing. If the property is read-only, it will throw an exception.

See also https://www.php.net/manual/en/function.unset.php.

public void __unset ( $name )
$name | string | The property name
throws | yii\base\InvalidCallException | if the property is read only.

Source code

                    public function __unset($name)
    {
        $setter = 'set' . $name;
        if (method_exists($this, $setter)) {
            $this->$setter(null);
        } elseif (method_exists($this, 'get' . $name)) {
            throw new InvalidCallException('Unsetting read-only property: ' . get_class($this) . '::' . $name);
        }
    }

canGetProperty() public method

Defined in: yii\base\BaseObject::canGetProperty()

Returns a value indicating whether a property can be read.

A property is readable 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);

See also canSetProperty().

public boolean canGetProperty ( $name, $checkVars = true )
$name | string | The property name
$checkVars | boolean | Whether to treat member variables as properties
return | boolean | Whether the property can be read

Source code

                    public function canGetProperty($name, $checkVars = true)
    {
        return method_exists($this, 'get' . $name) || $checkVars && property_exists($this, $name);
    }

canSetProperty() public method

Defined in: yii\base\BaseObject::canSetProperty()

Returns a value indicating whether a property can be set.

A property is writable 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);

See also canGetProperty().

public boolean canSetProperty ( $name, $checkVars = true )
$name | string | The property name
$checkVars | boolean | Whether to treat member variables as properties
return | boolean | Whether the property can be written

Source code

                    public function canSetProperty($name, $checkVars = true)
    {
        return method_exists($this, 'set' . $name) || $checkVars && property_exists($this, $name);
    }

className() public static method
Deprecated since 2.0.14. On PHP >=5.5, use `::class` instead.

Defined in: yii\base\BaseObject::className()

Returns the fully qualified name of this class.

public static string className ( )
return | string | The fully qualified name of this class.

Source code

                    public static function className()
    {
        return get_called_class();
    }

createRules() protected abstract method

Creates the URL rules that should be contained within this composite rule.

protected abstract yii\web\UrlRuleInterface[] createRules ( )
return | yii\web\UrlRuleInterface[] | The URL rules

Source code

                    abstract protected function createRules();

createUrl() public method

Creates a URL according to the given route and parameters.

public string|boolean createUrl ( $manager, $route, $params )
$manager | yii\web\UrlManager | The URL manager
$route | string | The route. It should not have slashes at the beginning or the end.
$params | array | The parameters
return | string|boolean | The created URL, or false if this rule cannot be used for creating this URL.

Source code

                    public function createUrl($manager, $route, $params)
    {
        $this->createStatus = UrlRule::CREATE_STATUS_SUCCESS;
        $url = $this->iterateRules($this->rules, $manager, $route, $params);
        if ($url !== false) {
            return $url;
        }
        if ($this->createStatus === UrlRule::CREATE_STATUS_SUCCESS) {
            // create status was not changed - there is no rules configured
            $this->createStatus = UrlRule::CREATE_STATUS_PARSING_ONLY;
        }
        return false;
    }

getCreateUrlStatus() public method (available since version 2.0.12)

Returns status of the URL creation after the last createUrl() call.

For multiple rules statuses will be combined by bitwise `or` operator (e.g. `UrlRule::CREATE_STATUS_PARSING_ONLY | UrlRule::CREATE_STATUS_PARAMS_MISMATCH`).

See also:

- $createStatus
- https://www.php.net/manual/en/language.operators.bitwise.php

public integer|null getCreateUrlStatus ( )
return | integer|null | Status of the URL creation after the last createUrl() call. `null` if rule does not provide info about create status.

Source code

                    public function getCreateUrlStatus()
    {
        return $this->createStatus;
    }

hasMethod() public method

Defined in: yii\base\BaseObject::hasMethod()

Returns a value indicating whether a method is defined.

The default implementation is a call to php function `method_exists()`. You may override this method when you implemented the php magic method `__call()`.

public boolean hasMethod ( $name )
$name | string | The method name
return | boolean | Whether the method is defined

Source code

                    public function hasMethod($name)
    {
        return method_exists($this, $name);
    }

hasProperty() public method

Defined in: yii\base\BaseObject::hasProperty()

Returns a value indicating whether a property is defined.

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);

See also:

- canGetProperty()
- canSetProperty()

public boolean hasProperty ( $name, $checkVars = true )
$name | string | The property name
$checkVars | boolean | Whether to treat member variables as properties
return | boolean | Whether the property is defined

Source code

                    public function hasProperty($name, $checkVars = true)
    {
        return $this->canGetProperty($name, $checkVars) || $this->canSetProperty($name, false);
    }

init() public method

Initializes the object.

This method is invoked at the end of the constructor after the object is initialized with the given configuration.

public void init ( )

Source code

                    public function init()
    {
        parent::init();
        $this->rules = $this->createRules();
    }

iterateRules() protected method (available since version 2.0.12)

Iterates through specified rules and calls createUrl() for each of them.

See also createUrl().

protected boolean|string iterateRules ( $rules, $manager, $route, $params )
$rules | yii\web\UrlRuleInterface[] | Rules to iterate.
$manager | yii\web\UrlManager | The URL manager
$route | string | The route. It should not have slashes at the beginning or the end.
$params | array | The parameters
return | boolean|string | The created URL, or `false` if none of specified rules cannot be used for creating this URL.

Source code

                    protected function iterateRules($rules, $manager, $route, $params)
    {
        /* @var $rule UrlRule */
        foreach ($rules as $rule) {
            $url = $rule->createUrl($manager, $route, $params);
            if ($url !== false) {
                $this->createStatus = UrlRule::CREATE_STATUS_SUCCESS;
                return $url;
            }
            if (
                $this->createStatus === null
                || !method_exists($rule, 'getCreateUrlStatus')
                || $rule->getCreateUrlStatus() === null
            ) {
                $this->createStatus = null;
            } else {
                $this->createStatus |= $rule->getCreateUrlStatus();
            }
        }
        return false;
    }

parseRequest() public method

Parses the given request and returns the corresponding route and parameters.

public array|boolean parseRequest ( $manager, $request )
$manager | yii\web\UrlManager | The URL manager
$request | yii\web\Request | The request component
return | array|boolean | The parsing result. The route and the parameters are returned as an array. If false, it means this rule cannot be used to parse this path info.

Source code

                    public function parseRequest($manager, $request)
    {
        foreach ($this->rules as $rule) {
            /* @var $rule UrlRule */
            $result = $rule->parseRequest($manager, $request);
            if (YII_DEBUG) {
                Yii::debug([
                    'rule' => method_exists($rule, '__toString') ? $rule->__toString() : get_class($rule),
                    'match' => $result !== false,
                    'parent' => self::className(),
                ], __METHOD__);
            }
            if ($result !== false) {
                return $result;
            }
        }
        return false;
    }