JApplication
Extends \JObjectBase class for a Joomla! application.
Acts as a Factory class for application specific objects and provides many supporting API functions. Derived clases should supply the route(), dispatch() and render() functions.
| package |
Joomla.Platform |
|---|---|
| subpackage |
Application |
| since |
11.1 |
Methods
__construct
Class constructor, overridden in descendant classes.
__construct(mixed $properties = null)
| since |
11.1 |
|---|
Arguments
- $properties
mixedEither and associative array or another object to set the initial properties of the object.
__toString
Magic method to convert the object to a string gracefully.
__toString() : string
| since |
11.1 |
|---|---|
| deprecated |
12.3 Classes should provide their own __toString() implementation. |
Response
stringThe classname.
_createConfiguration
Create the configuration registry.
_createConfiguration(string $file) : object
| since |
11.1 |
|---|
Arguments
- $file
stringThe path to the configuration file
Response
objectA JConfig object
_createSession
Create the user session.
_createSession(string $name) : \JSession
Old sessions are flushed based on the configuration value for the cookie lifetime. If an existing session, then the last access time is updated. If a new session, a session id is generated and a record is created in the #__sessions table.
| since |
11.1 |
|---|
Arguments
- $name
stringThe sessions name.
Response
\JSessionJSession on success. May call exit() on database error.
checkSession
Checks the user session.
checkSession() : void
If the session record doesn't exist, initialise it. If session is new, create session variables
| since |
11.1 |
|---|
close
Exit the application.
close(integer $code) : void
| since |
11.1 |
|---|
Arguments
- $code
integerExit code
def
Sets a default value if not alreay assigned
def(string $property, mixed $default = null) : mixed
| since |
11.1 |
|---|
Arguments
- $property
stringThe name of the property.- $default
mixedThe default value.
Response
mixed
dispatch
Dispatch the application.
dispatch(string $component = null) : void
Dispatching is the process of pulling the option from the request object and mapping them to a component. If the component does not exist, it handles determining a default component to dispatch.
| since |
11.1 |
|---|
Arguments
- $component
stringThe component to dispatch.
enqueueMessage
Enqueue a system message.
enqueueMessage(string $msg, string $type = 'message') : void
| since |
11.1 |
|---|
Arguments
- $msg
stringThe message to enqueue.- $type
stringThe message type. Default is message.
get
Returns a property of the object or the default value if the property is not set.
get(string $property, mixed $default = null) : mixed
| since |
11.1 |
|---|---|
| see | \JObject::getProperties() |
Arguments
- $property
stringThe name of the property.- $default
mixedThe default value.
Response
mixedThe value of the property.
getCfg
Gets a configuration value.
getCfg(string $varname, string $default = null) : mixed
An example is in application/japplication-getcfg.php Getting a configuration
| since |
11.1 |
|---|
Arguments
- $varname
stringThe name of the value to get.- $default
stringDefault value to return
Response
mixedThe user state.
getClientId
Gets the client id of the current running application.
getClientId() : integer
| since |
11.1 |
|---|
Response
integerA client identifier.
getError
Get the most recent error message.
getError(integer $i = null, boolean $toString = true) : string
| since |
11.1 |
|---|---|
| see | \JError |
| deprecated |
12.3 JError has been deprecated |
Arguments
- $i
integerOption error index.- $toString
booleanIndicates if JError objects should return their error message.
Response
stringError message
getErrors
Return all errors, if any.
getErrors() : array
| since |
11.1 |
|---|---|
| see | \JError |
| deprecated |
12.3 JError has been deprecated |
Response
arrayArray of error messages or JErrors.
getHash
Provides a secure hash based on a seed
getHash(string $seed) : string
| since |
11.1 |
|---|
Arguments
- $seed
stringSeed string.
Response
stringA secure hash
getInstance
Returns the global JApplication object, only creating it if it doesn't already exist.
getInstance(mixed $client, array $config = array(), string $prefix = 'J') : \JApplication
| since |
11.1 |
|---|
Arguments
- $client
mixedA client identifier or name.- $config
arrayAn optional associative array of configuration settings.- $prefix
stringA prefix for class names
Response
\JApplicationA JApplication object.
getMenu
Returns the application JPathway object.
getMenu(string $name = null, array $options = array()) : \JMenu
| since |
11.1 |
|---|
Arguments
- $name
stringThe name of the application/client.- $options
arrayAn optional associative array of configuration settings.
Response
\JMenuJMenu object.
getMessageQueue
Get the system message queue.
getMessageQueue() : array
| since |
11.1 |
|---|
Response
arrayThe system message queue.
getName
Method to get the application name.
getName() : string
The dispatcher name is by default parsed using the classname, or it can be set by passing a $config['name'] in the class constructor.
| since |
11.1 |
|---|
Response
stringThe name of the dispatcher.
getPathway
Returns the application JPathway object.
getPathway(string $name = null, array $options = array()) : \JPathway
| since |
11.1 |
|---|
Arguments
- $name
stringThe name of the application.- $options
arrayAn optional associative array of configuration settings.
Response
\JPathwayA JPathway object
getProperties
Returns an associative array of object properties.
getProperties(boolean $public = true) : array
| since |
11.1 |
|---|---|
| see | \JObject::get() |
Arguments
- $public
booleanIf true, returns only the public properties.
Response
array
getRouter
Returns the application JRouter object.
getRouter(string $name = null, array $options = array()) : \JRouter
| since |
11.1 |
|---|
Arguments
- $name
stringThe name of the application.- $options
arrayAn optional associative array of configuration settings.
Response
\JRouterA JRouter object
getTemplate
Gets the name of the current template.
getTemplate(array $params = false) : string
| since |
11.1 |
|---|
Arguments
- $params
arrayAn optional associative array of configuration settings
Response
stringSystem is the fallback.
getUserState
Gets a user state.
getUserState(string $key, mixed $default = null) : mixed
| since |
11.1 |
|---|
Arguments
- $key
stringThe path of the state.- $default
mixedOptional default value, returned if the internal value is null.
Response
mixedThe user state or null.
getUserStateFromRequest
Gets the value of a user state variable.
getUserStateFromRequest(string $key, string $request, string $default = null, string $type = 'none') : \The
| since |
11.1 |
|---|
Arguments
- $key
stringThe key of the user state variable.- $request
stringThe name of the variable passed in a request.- $default
stringThe default value for the variable if not found. Optional.- $type
stringFilter for the variable, for valid values see {@link JFilterInput::clean()}. Optional.
Response
\Therequest user state.
initialise
Initialise the application.
initialise(array $options = array()) : void
| since |
11.1 |
|---|
Arguments
- $options
arrayAn optional associative array of configuration settings.
isAdmin
Is admin interface?
isAdmin() : boolean
| since |
11.1 |
|---|
Response
booleanTrue if this application is administrator.
isSite
Is site interface?
isSite() : boolean
| since |
11.1 |
|---|
Response
booleanTrue if this application is site.
isWinOS
Method to determine if the host OS is Windows
isWinOS() : boolean
| since |
11.1 |
|---|
Response
booleanTrue if Windows OS
login
Login authentication function.
login(array $credentials, array $options = array()) : boolean
Username and encoded password are passed the onUserLogin event which is responsible for the user validation. A successful validation updates the current session record with the user's details.
Username and encoded password are sent as credentials (along with other possibilities) to each observer (authentication plugin) for user validation. Successful validation will update the current session with the user details.
| since |
11.1 |
|---|
Arguments
- $credentials
arrayArray('username' => string, 'password' => string)- $options
arrayArray('remember' => boolean)
Response
booleanTrue on success.
logout
Logout authentication function.
logout(integer $userid = null, array $options = array()) : boolean
Passed the current user information to the onUserLogout event and reverts the current session record back to 'anonymous' parameters. If any of the authentication plugins did not successfully complete the logout routine then the whole method fails. Any errors raised should be done in the plugin as this provides the ability to give much more information about why the routine may have failed.
| since |
11.1 |
|---|
Arguments
- $userid
integerThe user to load - Can be an integer or string - If string, it is converted to ID automatically- $options
arrayArray('clientid' => array of client id's)
Response
booleanTrue on success
redirect
Redirect to another URL.
redirect(string $url, string $msg = '', string $msgType = 'message', boolean $moved = false) : void
Optionally enqueues a message in the system message queue (which will be displayed the next time a page is loaded) using the enqueueMessage method. If the headers have not been sent the redirect will be accomplished using a "301 Moved Permanently" code in the header pointing to the new location. If the headers have already been sent this will be accomplished using a JavaScript statement.
| since |
11.1 |
|---|---|
| see | \JApplication::enqueueMessage() |
Arguments
- $url
stringThe URL to redirect to. Can only be http/https URL- $msg
stringAn optional message to display on redirect.- $msgType
stringAn optional message type. Defaults to message.- $moved
booleanTrue if the page is 301 Permanently Moved, otherwise 303 See Other is assumed.
registerEvent
Registers a handler to a particular event group.
registerEvent(string $event, mixed $handler) : void
| since |
11.1 |
|---|
Arguments
- $event
stringThe event name.- $handler
mixedThe handler, a function or an instance of a event object.
render
Render the application.
render() : void
Rendering is the process of pushing the document buffers into the template placeholders, retrieving data from the document and pushing it into the JResponse buffer.
| since |
11.1 |
|---|
route
Route the application.
route() : void
Routing is the process of examining the request environment to determine which component should receive the request. The component optional parameters are then set in the request object to be processed when the application is being dispatched.
| since |
11.1 |
|---|
set
Modifies a property of the object, creating it if it does not already exist.
set(string $property, mixed $value = null) : mixed
| since |
11.1 |
|---|
Arguments
- $property
stringThe name of the property.- $value
mixedThe value of the property to set.
Response
mixedPrevious value of the property.
setError
Add an error message.
setError(string $error) : void
| since |
11.1 |
|---|---|
| see | \JError |
| deprecated |
12.3 JError has been deprecated |
Arguments
- $error
stringError message.
setProperties
Set the object properties based on a named array/hash.
setProperties(mixed $properties) : boolean
| since |
11.1 |
|---|---|
| see | \JObject::set() |
Arguments
- $properties
mixedEither an associative array or another object.
Response
boolean
setUserState
Sets the value of a user state variable.
setUserState(string $key, string $value) : mixed
| since |
11.1 |
|---|
Arguments
- $key
stringThe path of the state.- $value
stringThe value of the variable.
Response
mixedThe previous state, if one existed.
stringURLSafe
This method transliterates a string into an URL safe string or returns a URL safe UTF-8 string based on the global configuration
stringURLSafe(string $string) : string
| since |
11.1 |
|---|
Arguments
- $string
stringString to process
Response
stringProcessed string
toString
Converts the object to a string (the class name).
toString() : string
triggerEvent
Calls all handlers associated with an event group.
triggerEvent(string $event, array $args = null) : array
| since |
11.1 |
|---|
Arguments
- $event
stringThe event name.- $args
arrayAn array of arguments.
Response
arrayAn array of results from each function call.
Properties
_clientId
The client identifier.
| since |
11.1 |
|---|
Type(s)
integer
_messageQueue
The application message queue.
| since |
11.1 |
|---|
Type(s)
array
_name
The name of the application.
| since |
11.1 |
|---|
Type(s)
array
scope
The scope of the application.
| since |
11.1 |
|---|
Type(s)
string
requestTime
The time the request was made.
| since |
11.1 |
|---|
Type(s)
\date
startTime
The time the request was made as Unix timestamp.
| since |
11.1 |
|---|
Type(s)
integer
instances
JApplication instances container.
| since |
11.3 |
|---|
Type(s)
array
_errors
An array of error messages or Exception objects.