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Class Router
Parses the request URL into controller, action, and parameters. Uses the connected routes to match the incoming URL string to parameters that will allow the request to be dispatched. Also handles converting parameter lists into URL strings, using the connected routes. Routing allows you to decouple the way the world interacts with your application (URLs) and the implementation (controllers and actions).
Connecting routes
Connecting routes is done using Router::connect(). When parsing incoming requests or reverse matching parameters, routes are enumerated in the order they were connected. For more information on routes and how to connect them see Router::connect().
Constants summary
string
'index|show|add|create|edit|update|remove|del|delete|view|item'
string
'0[1-9]|[12][0-9]|3[01]'
string
'[0-9]+'
string
'0[1-9]|1[012]'
string
'[A-Fa-f0-9]{8}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{4}-[A-Fa-f0-9]{12}'
string
'[12][0-9]{3}'
Properties summary
-
Cake\Routing\RouteCollection
-
array
-
boolean
-
string
Contains the base string that will be applied to all generated URLs For example
https://example.com
-
array
Initial state is populated the first time reload() is called which is at the bottom of this file. This is a cheat as get_class_vars() returns the value of static vars even if they have changed.
-
array
-
array
-
array
Maintains the request object stack for the current request. This will contain more than one request object when requestAction is used.
-
array
The stack of URL filters to apply against routing URLs before passing the parameters to the route collection.
-
boolean
Method Summary
- Applies all the connected URL filters to the URL.
- Loads route configuration
- Store the request context for a given request.
- Add a URL filter to Router.
- Connects a new Route in the router.
- Get or set default route class.
- Get or set valid extensions for all routes connected later.
-
Sets the full base URL that will be used as a prefix for generating fully qualified URLs for this application. If not parameters are passed, the currently configured value is returned.
- Gets the named route patterns for use in config/routes.php
- Get the current request object, or the first one.
- Generate REST resource routes for the given controller(s).
- Normalizes an URL for purposes of comparison.
- Parses given URL string. Returns 'routing' parameters for that URL.
- Provides legacy support for named parameters on incoming URLs.
- Add plugin routes.
- Pops a request off of the request stack. Used when doing requestAction
- Create prefixed routes.
-
Push a request onto the request stack. Pushing a request sets the request context used when generating URLs.
- Connects a new redirection Route in the router.
-
Reloads default Router settings. Resets all class variables and removes all connected routes.
- Reverses a parsed parameter array into a string.
- Get the route scopes and their connected routes.
- Create a routing scope.
-
Takes parameter and path information back from the Dispatcher, sets these parameters as the current request parameters that are merged with URL arrays created later in the request.
- Finds URL for specified action.
Method Detail
_applyUrlFilters()source protected static
_applyUrlFilters( array $url )
Applies all the connected URL filters to the URL.
Parameters
-
array
$url
- The URL array being modified.
Returns
arrayThe modified URL.
See
\Cake\Routing\Router::url()\Cake\Routing\Router::addUrlFilter()
_setContext()source protected static
_setContext( Cake\Network\Request $request )
Store the request context for a given request.
Parameters
Cake\Network\Request
$request
- The request instance.
addUrlFilter()source public static
addUrlFilter( callable $function )
Add a URL filter to Router.
URL filter functions are applied to every array $url provided to Router::url() before the URLs are sent to the route collection.
Callback functions should expect the following parameters:
$params
The URL params being processed.$request
The current request.
The URL filter function should always return the params even if unmodified.
Usage
URL filters allow you to easily implement features like persistent parameters.
Router::addUrlFilter(function ($params, $request) {
if (isset($request->params['lang']) && !isset($params['lang'])) {
$params['lang'] = $request->params['lang'];
}
return $params;
});
Parameters
-
callable
$function
- The function to add
connect()source public static
connect( string $route , array $defaults [] , array $options [] )
Connects a new Route in the router.
Compatibility proxy to \Cake\Routing\RouteBuilder::connect() in the /
scope.
Parameters
-
string
$route
- A string describing the template of the route
-
array
$defaults
optional [] -
An array describing the default route parameters. These parameters will be used by default and can supply routing parameters that are not dynamic. See above.
-
array
$options
optional [] -
An array matching the named elements in the route to regular expressions which that element should match. Also contains additional parameters such as which routed parameters should be shifted into the passed arguments, supplying patterns for routing parameters and supplying the name of a custom routing class.
Throws
Cake\Core\Exception\Exception
See
\Cake\Routing\RouteBuilder::connect()\Cake\Routing\Router::scope()
defaultRouteClass()source public static
defaultRouteClass( string|null $routeClass null )
Get or set default route class.
Parameters
-
string|null
$routeClass
optional null - Class name.
Returns
string|nullextensions()source public static
extensions( array|string|null $extensions null , boolean $merge true )
Get or set valid extensions for all routes connected later.
Instructs the router to parse out file extensions from the URL. For example, http://example.com/posts.rss would yield a file extension of "rss". The file extension itself is made available in the controller as $this->request->params['_ext']
, and is used by the RequestHandler component to automatically switch to alternate layouts and templates, and load helpers corresponding to the given content, i.e. RssHelper. Switching layouts and helpers requires that the chosen extension has a defined mime type in Cake\Network\Response
.
A string or an array of valid extensions can be passed to this method. If called without any parameters it will return current list of set extensions.
Parameters
-
array|string|null
$extensions
optional null - List of extensions to be added.
-
boolean
$merge
optional true -
Whether to merge with or override existing extensions. Defaults to
true
.
Returns
arrayArray of extensions Router is configured to parse.
fullBaseUrl()source public static
fullBaseUrl( string|null $base null )
Sets the full base URL that will be used as a prefix for generating fully qualified URLs for this application. If not parameters are passed, the currently configured value is returned.
Note:
If you change the configuration value App.fullBaseUrl
during runtime and expect the router to produce links using the new setting, you are required to call this method passing such value again.
Parameters
-
string|null
$base
optional null -
the prefix for URLs generated containing the domain. For example:
http://example.com
Returns
stringgetNamedExpressions()source public static
getNamedExpressions( )
Gets the named route patterns for use in config/routes.php
Returns
arrayNamed route elements
See
\Cake\Routing\Router::$_namedExpressionsgetRequest()source public static
getRequest( boolean $current false )
Get the current request object, or the first one.
Parameters
-
boolean
$current
optional false - True to get the current request, or false to get the first one.
Returns
Cake\Network\Request
|nullmapResources()source public static
mapResources( string|array $controller , array $options [] )
Generate REST resource routes for the given controller(s).
Compatibility proxy to \Cake\Routing\RouteBuilder::resources(). Additional, compatibility around prefixes and plugins and prefixes is handled by this method.
A quick way to generate a default routes to a set of REST resources (controller(s)).
Usage
Connect resource routes for an app controller:
Router::mapResources('Posts');
Connect resource routes for the Comment controller in the Comments plugin:
Router::mapResources('Comments.Comment');
Plugins will create lower_case underscored resource routes. e.g /comments/comment
Connect resource routes for the Posts controller in the Admin prefix:
Router::mapResources('Posts', ['prefix' => 'admin']);
Prefixes will create lower_case underscored resource routes. e.g /admin/posts
Options:
- 'id' - The regular expression fragment to use when matching IDs. By default, matches integer values and UUIDs.
- 'prefix' - Routing prefix to use for the generated routes. Defaults to ''. Using this option will create prefixed routes, similar to using Routing.prefixes.
- 'only' - Only connect the specific list of actions.
- 'actions' - Override the method names used for connecting actions.
- 'map' - Additional resource routes that should be connected. If you define 'only' and 'map', make sure that your mapped methods are also in the 'only' list.
Parameters
-
string|array
$controller
- A controller name or array of controller names (i.e. "Posts" or "ListItems")
-
array
$options
optional [] - Options to use when generating REST routes
See
\Cake\Routing\RouteBuilder::resources()normalize()source public static
normalize( array|string $url '/' )
Normalizes an URL for purposes of comparison.
Will strip the base path off and replace any double /'s. It will not unify the casing and underscoring of the input value.
Parameters
-
array|string
$url
optional '/' - URL to normalize Either an array or a string URL.
Returns
stringNormalized URL
parse()source public static
parse( string $url )
Parses given URL string. Returns 'routing' parameters for that URL.
Parameters
-
string
$url
- URL to be parsed
Returns
arrayParsed elements from URL
Throws
Cake\Routing\Exception\MissingRouteException
When a route cannot be handled
parseNamedParams()source public static
parseNamedParams( Cake\Network\Request $request , array $options [] )
Provides legacy support for named parameters on incoming URLs.
Checks the passed parameters for elements containing $options['separator']
Those parameters are split and parsed as if they were old style named parameters.
The parsed parameters will be moved from params['pass'] to params['named'].
Options
separator
The string to use as a separator. Defaults to:
.
Parameters
Cake\Network\Request
$request
- The request object to modify.
-
array
$options
optional [] - The array of options.
Returns
Cake\Network\Request
The modified request
plugin()source public static
plugin( string $name , array|callable $options [] , callable|null $callback null )
Add plugin routes.
This method creates a scoped route collection that includes relevant plugin information.
The plugin name will be inflected to the underscore version to create the routing path. If you want a custom path name, use the path
option.
Routes connected in the scoped collection will have the correct path segment prepended, and have a matching plugin routing key set.
Parameters
-
string
$name
- The plugin name to build routes for
-
array|callable
$options
optional [] - Either the options to use, or a callback
-
callable|null
$callback
optional null -
The callback to invoke that builds the plugin routes. Only required when $options is defined
popRequest()source public static
popRequest( )
Pops a request off of the request stack. Used when doing requestAction
Returns
Cake\Network\Request
The request removed from the stack.
See
\Cake\Routing\Router::pushRequest()\Cake\Routing\RequestActionTrait::requestAction()
prefix()source public static
prefix( string $name , array|callable $params [] , callable|null $callback null )
Create prefixed routes.
This method creates a scoped route collection that includes relevant prefix information.
The path parameter is used to generate the routing parameter name. For example a path of admin
would result in 'prefix' => 'admin'
being applied to all connected routes.
You can re-open a prefix as many times as necessary, as well as nest prefixes. Nested prefixes will result in prefix values like admin/api
which translates to the Controller\Admin\Api\
namespace.
Parameters
-
string
$name
- The prefix name to use.
-
array|callable
$params
optional [] -
An array of routing defaults to add to each connected route. If you have no parameters, this argument can be a callable.
-
callable|null
$callback
optional null - The callback to invoke that builds the prefixed routes.
pushRequest()source public static
pushRequest( Cake\Network\Request $request )
Push a request onto the request stack. Pushing a request sets the request context used when generating URLs.
Parameters
Cake\Network\Request
$request
- Request instance.
redirect()source public static
redirect( string $route , array $url , array $options [] )
Connects a new redirection Route in the router.
Compatibility proxy to \Cake\Routing\RouteBuilder::redirect() in the /
scope.
Parameters
-
string
$route
- A string describing the template of the route
-
array
$url
- An URL to redirect to. Can be a string or a Cake array-based URL
-
array
$options
optional [] -
An array matching the named elements in the route to regular expressions which that element should match. Also contains additional parameters such as which routed parameters should be shifted into the passed arguments. As well as supplying patterns for routing parameters.
See
\Cake\Routing\RouteBuilder::redirect()reload()source public static
reload( )
Reloads default Router settings. Resets all class variables and removes all connected routes.
reverse()source public static
reverse( Cake\Network\Request|array $params , boolean $full false )
Reverses a parsed parameter array into a string.
Works similarly to Router::url(), but since parsed URL's contain additional 'pass' as well as 'url.url' keys. Those keys need to be specially handled in order to reverse a params array into a string URL.
This will strip out 'autoRender', 'bare', 'requested', and 'return' param names as those are used for CakePHP internals and should not normally be part of an output URL.
Parameters
Cake\Network\Request
|array$params
-
The params array or Cake\Network\Request object that needs to be reversed.
-
boolean
$full
optional false -
Set to true to include the full URL including the protocol when reversing the URL.
Returns
stringThe string that is the reversed result of the array
routes()source public static
routes( )
Get the route scopes and their connected routes.
Returns
arrayscope()source public static
scope( string $path , array|callable $params [] , callable|null $callback null )
Create a routing scope.
Routing scopes allow you to keep your routes DRY and avoid repeating common path prefixes, and or parameter sets.
Scoped collections will be indexed by path for faster route parsing. If you re-open or re-use a scope the connected routes will be merged with the existing ones.
Example
Router::scope('/blog', ['plugin' => 'Blog'], function ($routes) {
$routes->connect('/', ['controller' => 'Articles']);
});
The above would result in a /blog/
route being created, with both the plugin & controller default parameters set.
You can use Router::plugin() and Router::prefix() as shortcuts to creating specific kinds of scopes.
Routing scopes will inherit the globally set extensions configured with Router::extensions(). You can also set valid extensions using $routes->extensions()
in your closure.
Parameters
-
string
$path
-
The path prefix for the scope. This path will be prepended to all routes connected in the scoped collection.
-
array|callable
$params
optional [] -
An array of routing defaults to add to each connected route. If you have no parameters, this argument can be a callable.
-
callable|null
$callback
optional null - The callback to invoke with the scoped collection.
Throws
InvalidArgumentExceptionWhen an invalid callable is provided.
setRequestInfo()source public static
setRequestInfo( Cake\Network\Request|array $request )
Takes parameter and path information back from the Dispatcher, sets these parameters as the current request parameters that are merged with URL arrays created later in the request.
Nested requests will create a stack of requests. You can remove requests using Router::popRequest(). This is done automatically when using Object::requestAction().
Will accept either a Cake\Network\Request object or an array of arrays. Support for accepting arrays may be removed in the future.
Parameters
Cake\Network\Request
|array$request
- Parameters and path information or a Cake\Network\Request object.
url()source public static
url( string|array|null $url null , boolean $full false )
Finds URL for specified action.
Returns an URL pointing to a combination of controller and action.
Usage
Router::url('/posts/edit/1');
Returns the string with the base dir prepended. This usage does not use reverser routing.Router::url(['controller' => 'posts', 'action' => 'edit']);
Returns a URL generated through reverse routing.Router::url(['_name' => 'custom-name', ...]);
Returns a URL generated through reverse routing. This form allows you to leverage named routes.
There are a few 'special' parameters that can change the final URL string that is generated
_base
- Set to false to remove the base path from the generated URL. If your application is not in the root directory, this can be used to generate URLs that are 'cake relative'. cake relative URLs are required when using requestAction._scheme
- Set to create links on different schemes likewebcal
orftp
. Defaults to the current scheme._host
- Set the host to use for the link. Defaults to the current host._port
- Set the port if you need to create links on non-standard ports._full
- If true output ofRouter::fullBaseUrl()
will be prepended to generated URLs.#
- Allows you to set URL hash fragments._ssl
- Set to true to convert the generated URL to https, or false to force http._name
- Name of route. If you have setup named routes you can use this key to specify it.
Parameters
-
string|array|null
$url
optional null -
An array specifying any of the following: 'controller', 'action', 'plugin' additionally, you can provide routed elements or query string parameters. If string it can be name any valid url string.
-
boolean
$full
optional false -
If true, the full base URL will be prepended to the result. Default is false.
Returns
stringFull translated URL with base path.
Throws
Cake\Core\Exception\Exception
When the route name is not found
Properties detail
$_collectionsource
protected static Cake\Routing\RouteCollection
The route collection routes would be added to.
$_defaultExtensionssource
protected static array
Default extensions defined with Router::extensions()
[]
$_fullBaseUrlsource
protected static string
Contains the base string that will be applied to all generated URLs For example https://example.com
$_initialStatesource
protected static array
Initial state is populated the first time reload() is called which is at the bottom of this file. This is a cheat as get_class_vars() returns the value of static vars even if they have changed.
[]
$_namedExpressionssource
protected static array
Named expressions
[
'Action' => Router::ACTION,
'Year' => Router::YEAR,
'Month' => Router::MONTH,
'Day' => Router::DAY,
'ID' => Router::ID,
'UUID' => Router::UUID
]
$_requestssource
protected static array
Maintains the request object stack for the current request. This will contain more than one request object when requestAction is used.
[]
$_urlFilterssource
protected static array
The stack of URL filters to apply against routing URLs before passing the parameters to the route collection.
[]
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http://api.cakephp.org/3.2/class-Cake.Routing.Router.html