A view class that is used for creating XML responses.
By setting the '_serialize' key in your controller, you can specify a view variable that should be serialized to XML and used as the response for the request. This allows you to omit views + layouts, if your just need to emit a single view variable as the XML response.
In your controller, you could do the following:
$this->set(['posts' => $posts, '_serialize' => true]);
When the view is rendered, the $posts
view variable will be serialized into XML.
Note The view variable you specify must be compatible with Xml::fromArray().
You can also define '_serialize'
as an array. This will create an additional top level element named <response>
containing all the named view variables:
$this->set(compact('posts', 'users', 'stuff')); $this->set('_serialize', true);
The above would generate a XML object that looks like:
<response><posts>...</posts><users>...</users></response>
You can also set '_serialize'
to a string or array to serialize only the specified view variables.
If you don't use the _serialize
key, you will need a view. You can use extended views to provide layout like functionality.
$_responseType
protected string
$_specialVars
protected array
$layoutPath
public string
Layouts/
$subDir
public string
Blocks
, _current
, _currentType
, _ext
, _helpers
, _parents
, _passedVars
, _paths
, _pathsForPlugin
, _stack
, autoLayout
, elementCache
, hasRendered
, helpers
, layout
, name
, passedArgs
, plugin
, request
, response
, template
, templatePath
, theme
, uuids
_eventClass
, _eventManager
_viewBuilder
, viewClass
, viewVars
_serialize( array|string $serialize )
Serialize view vars.
_xmlOptions
You can set an array of custom options for Xml::fromArray() this way, e.g. 'format' as 'attributes' instead of 'tags'.
$serialize
__construct( Cake\Http\ServerRequest $request null , Cake\Network\Response $response null , Cake\Event\EventManager $eventManager null , array $viewOptions [] )
Constructor
Cake\Http\ServerRequest
$request
optional null $response
optional null Cake\Event\EventManager
$eventManager
optional null $viewOptions
optional [] Cake\View\View::__construct()
loadHelpers( )
Load helpers only if serialization is disabled.
Cake\View\View::loadHelpers()
render( string|boolean|null $view null , string|null $layout null )
Render view template or return serialized data.
_serialize
To convert a set of view variables into a serialized form. Its value can be a string for single variable name or array for multiple names. If true all view variables will be serialized. If unset normal view template will be rendered.
$view
optional null $layout
optional null Cake\Core\Exception\Exception
Cake\View\View::render()
__get( string $name )
Magic accessor for helpers.
$name
__set( string $name , mixed $value )
Magic setter for deprecated properties.
$name
$value
_checkFilePath( string $file , string $path )
Check that a view file path does not go outside of the defined template paths.
Only paths that contain ..
will be checked, as they are the ones most likely to have the ability to resolve to files outside of the template paths.
$file
$path
_elementCache( string $name , array $data , array $options )
Generate the cache configuration options for an element.
$name
$data
$options
_evaluate( string $viewFile , array $dataForView )
Sandbox method to evaluate a template / view script in.
$viewFile
$dataForView
_getElementFileName( string $name , boolean $pluginCheck true )
Finds an element filename, returns false on failure.
$name
$pluginCheck
optional true _getLayoutFileName( string|null $name null )
Returns layout filename for this template as a string.
$name
optional null Cake\View\Exception\MissingLayoutException
_getSubPaths( string $basePath )
Find all sub templates path, based on $basePath If a prefix is defined in the current request, this method will prepend the prefixed template path to the $basePath, cascading up in case the prefix is nested. This is essentially used to find prefixed template paths for elements and layouts.
$basePath
_getViewFileName( string|null $name null )
Returns filename of given action's template file (.ctp) as a string. CamelCased action names will be under_scored by default. This means that you can have LongActionNames that refer to long_action_names.ctp views. You can change the inflection rule by overriding _inflectViewFileName.
$name
optional null Cake\View\Exception\MissingTemplateException
_inflectViewFileName( string $name )
Change the name of a view template file into underscored format.
$name
_paths( string|null $plugin null , boolean $cached true )
Return all possible paths to find view files in order
$plugin
optional null $cached
optional true _render( string $viewFile , array $data [] )
Renders and returns output for given template filename with its array of data. Handles parent/extended templates.
$viewFile
$data
optional [] Data to include in rendered view. If empty the current View::$viewVars will be used.
_renderElement( string $file , array $data , array $options )
Renders an element and fires the before and afterRender callbacks for it and writes to the cache if a cache is used
$file
$data
$options
append( string $name , mixed $value null )
Append to an existing or new block.
Appending to a new block will create the block.
$name
$value
optional null The content for the block. Value will be type cast to string.
assign( string $name , mixed $value )
Set the content for a block. This will overwrite any existing content.
$name
$value
The content for the block. Value will be type cast to string.
autoLayout( boolean|null $autoLayout null )
Turns on or off CakePHP's conventional mode of applying layout files. On by default. Setting to off means that layouts will not be automatically applied to rendered templates.
$autoLayout
optional null blocks( )
Get the names of all the existing blocks.
cache( callable $block , array $options [] )
Create a cached block of view logic.
This allows you to cache a block of view output into the cache defined in elementCache
.
This method will attempt to read the cache first. If the cache is empty, the $block will be run and the output stored.
$block
$options
optional [] element( string $name , array $data [] , array $options [] )
Renders a piece of PHP with provided parameters and returns HTML, XML, or any other string.
This realizes the concept of Elements, (or "partial layouts") and the $params array is used to send data to be used in the element. Elements can be cached improving performance by using the cache
option.
$name
Name of template file in the /src/Template/Element/ folder, or MyPlugin.template
to use the template element from MyPlugin. If the element is not found in the plugin, the normal view path cascade will be searched.
$data
optional [] $options
optional [] Array of options. Possible keys are: - cache
- Can either be true
, to enable caching using the config in View::$elementCache. Or an array If an array, the following keys can be used: - config
- Used to store the cached element in a custom cache configuration. - key
- Used to define the key used in the Cache::write(). It will be prefixed with element_
- callbacks
- Set to true to fire beforeRender and afterRender helper callbacks for this element. Defaults to false. - ignoreMissing
- Used to allow missing elements. Set to true to not throw exceptions. - plugin
- setting to false will force to use the application's element from plugin templates, when the plugin has element with same name. Defaults to true
Cake\View\Exception\MissingElementException
When an element is missing and ignoreMissing
is false.
elementExists( string $name )
Checks if an element exists
$name
Name of template file in the /src/Template/Element/ folder, or MyPlugin.template
to check the template element from MyPlugin. If the element is not found in the plugin, the normal view path cascade will be searched.
end( )
End a capturing block. The compliment to View::start()
exists( string $name )
Check if a block exists
$name
extend( string $name )
Provides template or element extension/inheritance. Views can extends a parent view and populate blocks in the parent template.
$name
fetch( string $name , string $default '' )
Fetch the content for a block. If a block is empty or undefined '' will be returned.
$name
$default
optional '' get( string $var , mixed $default null )
Returns the contents of the given View variable.
$var
$default
optional null getVars( )
Returns a list of variables available in the current View context
helpers( )
Get the helper registry in use by this View class.
Cake\View\HelperRegistry
initialize( )
Initialization hook method.
Properties like $helpers etc. cannot be initialized statically in your custom view class as they are overwritten by values from controller in constructor. So this method allows you to manipulate them as required after view instance is constructed.
layout( string|null $name null )
Get/set the name of the layout file to render the template inside of. The name specified is the filename of the layout in /src/Template/Layout without the .ctp extension.
$name
optional null layoutPath( string|null $path null )
Get/set path for layout files.
$path
optional null loadHelper( string $name , array $config [] )
Loads a helper. Delegates to the HelperRegistry::load()
to load the helper
$name
$config
optional [] Cake\View\Helper
pluginSplit( string $name , boolean $fallback true )
Splits a dot syntax plugin name into its plugin and filename. If $name does not have a dot, then index 0 will be null. It checks if the plugin is loaded, else filename will stay unchanged for filenames containing dot
$name
$fallback
optional true prepend( string $name , mixed $value )
Prepend to an existing or new block.
Prepending to a new block will create the block.
$name
$value
The content for the block. Value will be type cast to string.
renderLayout( string $content , string|null $layout null )
Renders a layout. Returns output from _render(). Returns false on error. Several variables are created for use in layout.
$content
$layout
optional null Cake\Core\Exception\Exception
reset( string $name )
Reset the content for a block. This will overwrite any existing content.
$name
start( string $name )
Start capturing output for a 'block'
You can use start on a block multiple times to append or prepend content in a capture mode.
// Append content to an existing block. $this->start('content'); echo $this->fetch('content'); echo 'Some new content'; $this->end(); // Prepend content to an existing block $this->start('content'); echo 'Some new content'; echo $this->fetch('content'); $this->end();
$name
template( string|null $name null )
Get/set the name of the template file to render. The name specified is the filename in /src/Template/
$name
optional null templatePath( string|null $path null )
Get/set path for templates files.
$path
optional null theme( string|null $theme null )
The view theme to use.
$theme
optional null uuid( string $object , string $url )
Generates a unique, non-random DOM ID for an object, based on the object type and the target URL.
$object
$url
_createCell( string $className , string $action , string $plugin , array $options )
Create and configure the cell instance.
$className
$action
$plugin
$options
Cake\View\Cell
cell( string $cell , array $data [] , array $options [] )
Renders the given cell.
Example:
// Taxonomy\View\Cell\TagCloudCell::smallList() $cell = $this->cell('Taxonomy.TagCloud::smallList', ['limit' => 10]); // App\View\Cell\TagCloudCell::smallList() $cell = $this->cell('TagCloud::smallList', ['limit' => 10]);
The display
action will be used by default when no action is provided:
// Taxonomy\View\Cell\TagCloudCell::display() $cell = $this->cell('Taxonomy.TagCloud');
Cells are not rendered until they are echoed.
$cell
You must indicate cell name, and optionally a cell action. e.g.: TagCloud::smallList
will invoke View\Cell\TagCloudCell::smallList()
, display
action will be invoked by default when none is provided.
$data
optional [] Additional arguments for cell method. e.g.: cell('TagCloud::smallList', ['a1' => 'v1', 'a2' => 'v2'])
maps to View\Cell\TagCloud::smallList(v1, v2)
$options
optional [] Cake\View\Cell
Cake\View\Exception\MissingCellException
dispatchEvent( string $name , array|null $data null , object|null $subject null )
Wrapper for creating and dispatching events.
Returns a dispatched event.
$name
$data
optional null Any value you wish to be transported with this event to it can be read by listeners.
$subject
optional null The object that this event applies to ($this by default).
Cake\Event\Event
eventManager( Cake\Event\EventManager $eventManager null )
Returns the Cake\Event\EventManager manager instance for this object.
You can use this instance to register any new listeners or callbacks to the object events, or create your own events and trigger them at will.
Cake\Event\EventManager
$eventManager
optional null Cake\Event\EventManager
log( mixed $msg , integer|string $level LogLevel::ERROR , string|array $context [] )
Convenience method to write a message to Log. See Log::write() for more information on writing to logs.
$msg
$level
optional LogLevel::ERROR $context
optional [] requestAction( string|array $url , array $extra [] )
Calls a controller's method from any location. Can be used to connect controllers together or tie plugins into a main application. requestAction can be used to return rendered views or fetch the return value from controller actions.
Under the hood this method uses Router::reverse() to convert the $url parameter into a string URL. You should use URL formats that are compatible with Router::reverse()
A basic example getting the return value of the controller action:
$variables = $this->requestAction('/articles/popular');
A basic example of request action to fetch a rendered page without the layout.
$viewHtml = $this->requestAction('/articles/popular', ['return']);
You can also pass the URL as an array:
$vars = $this->requestAction(['controller' => 'articles', 'action' => 'popular']);
You can pass POST, GET, COOKIE and other data into the request using the appropriate keys. Cookies can be passed using the cookies
key. Get parameters can be set with query
and post data can be sent using the post
key.
$vars = $this->requestAction('/articles/popular', [ 'query' => ['page' => 1], 'cookies' => ['remember_me' => 1], ]);
By default actions dispatched with this method will use the global $_SERVER and $_ENV values. If you want to override those values for a request action, you can specify the values:
$vars = $this->requestAction('/articles/popular', [ 'environment' => ['CONTENT_TYPE' => 'application/json'] ]);
By default actions dispatched with this method will use the standard session object. If you want a particular session instance to be used, you need to specify it.
$vars = $this->requestAction('/articles/popular', [ 'session' => new Session($someSessionConfig) ]);
$url
String or array-based url. Unlike other url arrays in CakePHP, this url will not automatically handle passed arguments in the $url parameter.
$extra
optional [] if array includes the key "return" it sets the autoRender to true. Can also be used to submit GET/POST data, and passed arguments.
Boolean true or false on success/failure, or contents of rendered action if 'return' is set in $extra.
createView( string|null $viewClass null )
Constructs the view class instance based on the current configuration.
$viewClass
optional null Cake\View\View
Cake\View\Exception\MissingViewException
set( string|array $name , mixed $value null )
Saves a variable or an associative array of variables for use inside a template.
$name
$value
optional null Value in case $name is a string (which then works as the key). Unused if $name is an associative array, otherwise serves as the values to $name's keys.
viewBuilder( )
Get the view builder being used.
Cake\View\ViewBuilder
viewOptions( string|array|null $options null , boolean $merge true )
Get/Set valid view options in the object's _validViewOptions property. The property is created as an empty array if it is not set. If called without any parameters it will return the current list of valid view options. See createView()
.
$options
optional null $merge
optional true Whether to merge with or override existing valid View options. Defaults to true
.
protected array
List of special view vars.
['_serialize', '_rootNode', '_xmlOptions']
public string
XML views are located in the 'xml' sub directory for controllers' views.
'xml'
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Licensed under the MIT License.
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https://api.cakephp.org/3.4/class-Cake.View.XmlView.html