View, the V in the MVC triad. View interacts with Helpers and view variables passed in from the controller to render the results of the controller action. Often this is HTML, but can also take the form of JSON, XML, PDF's or streaming files.
CakePHP uses a two-step-view pattern. This means that the view content is rendered first, and then inserted into the selected layout. This also means you can pass data from the view to the layout using $this->set()
Since 2.1, the base View class also includes support for themes by default. Theme views are regular view files that can provide unique HTML and static assets. If theme views are not found for the current view the default app view files will be used. You can set $this->theme = 'mytheme' in your Controller to use the Themes.
Example of theme path with $this->theme = 'SuperHot'; Would be app/View/Themed/SuperHot/Posts
View __construct( Controller $controller null )
Constructor
Controller $controller optional null Object::__construct() __get( string $name )
Magic accessor for helpers. Provides access to attributes that were deprecated.
$name mixed__isset( string $name )
Magic isset check for deprecated attributes.
$name boolean__set( string $name , mixed $value )
Magic accessor for deprecated attributes.
$name $value mixed_elementCache( string $name , string $data , array $options )
Checks if an element is cached and returns the cached data if present
$name $data $options string|null_evaluate( string $viewFile , array $dataForView )
Sandbox method to evaluate a template / view script in.
$viewFile $dataForView string_getElementFileName( string $name )
Finds an element filename, returns false on failure.
$name mixed_getExtensions( )
Get the extensions that view files can use.
array_getLayoutFileName( string $name null )
Returns layout filename for this template as a string.
$name optional null stringMissingLayoutException_getViewFileName( string $name null )
Returns filename of given action's template file (.ctp) as a string. CamelCased action names will be under_scored! This means that you can have LongActionNames that refer to long_action_names.ctp views.
$name optional null stringMissingViewException_paths( string $plugin null , boolean $cached true )
Return all possible paths to find view files in order
$plugin optional null $cached optional true array_render( string $viewFile , array $data array() )
Renders and returns output for given view filename with its array of data. Handles parent/extended views.
$viewFile $data optional array() stringCakeException_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 stringaddScript( string $name , string $content null )
Adds a script block or other element to be inserted in $scripts_for_layout in the <head /> of a document layout
$name $content optional null View::start()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 ViewBlock::concat()assign( string $name , mixed $value )
Set the content for a block. This will overwrite any existing content.
$name $value ViewBlock::set()blocks( )
Get the names of all the existing blocks.
arrayViewBlock::keys()element( string $name , array $data array() , array $options array() )
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.
$name MyPlugin.template to use the template element from MyPlugin. If the element is not found in the plugin, the normal view path cascade will be searched.$data optional array() $options optional array() cache - Can either be true, to enable caching using the config in View::$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_ - plugin - (deprecated!) Load an element from a specific plugin. This option is deprecated, and will be removed in CakePHP 3.0. Use Plugin.element_name instead. - 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 trigger notices.stringelementExists( string $name )
Checks if an element exists
$name 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.booleanexists( string $name )
Check if a block exists
$name booleanextend( string $name )
Provides view or element extension/inheritance. Views can extends a parent view and populate blocks in the parent template.
$name LogicExceptionLogicExceptionfetch( string $name , string $default '' )
Fetch the content for a block. If a block is empty or undefined '' will be returned.
$name $default optional '' stringViewBlock::get()get( string $var , mixed $default null )
Returns the contents of the given View variable.
$var $default optional null mixedgetEventManager( )
Returns the CakeEventManager manager instance that is handling any callbacks. You can use this instance to register any new listeners or callbacks to the controller events, or create your own events and trigger them at will.
CakeEventManagergetVar( string $var )
Returns the contents of the given View variable(s)
$var mixedgetVars( )
Returns a list of variables available in the current View context
arrayloadHelper( string $helperName , array $settings array() )
Loads a helper. Delegates to the HelperCollection::load() to load the helper
$helperName $settings optional array() HelperHelperCollection::load()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 arrayprepend( string $name , mixed $value null )
Prepend to an existing or new block. Prepending to a new block will create the block.
$name $value optional null ViewBlock::concat()render( string $view null , string $layout null )
Renders view for given view file and layout.
Render triggers helper callbacks, which are fired before and after the view are rendered, as well as before and after the layout. The helper callbacks are called:
beforeRenderafterRenderbeforeLayoutafterLayoutIf View::$autoRender is false and no $layout is provided, the view will be returned bare.
View and layout names can point to plugin views/layouts. Using the Plugin.view syntax a plugin view/layout can be used instead of the app ones. If the chosen plugin is not found the view will be located along the regular view path cascade.
$view optional null $layout optional null string|nullCakeExceptionrenderCache( string $filename , string $timeStart )
Render cached view. Works in concert with CacheHelper and Dispatcher to render cached view files.
$filename $timeStart booleanrenderLayout( string $content , string $layout null )
Renders a layout. Returns output from _render(). Returns false on error. Several variables are created for use in layout.
title_for_layout - A backwards compatible place holder, you should set this value if you want more control.content_for_layout - contains rendered view filescripts_for_layout - Contains content added with addScript() as well as any content in the 'meta', 'css', and 'script' blocks. They are appended in that order.Deprecated features:
$scripts_for_layout is deprecated and will be removed in CakePHP 3.0. Use the block features instead. meta, css and script will be populated by the matching methods on HtmlHelper.$title_for_layout is deprecated and will be removed in CakePHP 3.0. Use the title block instead.$content_for_layout is deprecated and will be removed in CakePHP 3.0. Use the content block instead.$content $layout optional null mixedCakeExceptionset( string|array $one , string|array $two null )
Allows a template or element to set a variable that will be available in a layout or other element. Analogous to Controller::set().
$one $two optional null start( string $name )
Start capturing output for a 'block'
$name ViewBlock::start()startIfEmpty( string $name )
Start capturing output for a 'block' if it has no content
$name ViewBlock::startIfEmpty()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 string_mergeVars( array $properties , string $class , boolean $normalize true )
Merges this objects $property with the property in $class' definition. This classes value for the property will be merged on top of $class'
This provides some of the DRY magic CakePHP provides. If you want to shut it off, redefine this method as an empty function.
$properties $class $normalize optional true _set( array $properties array() )
Allows setting of multiple properties of the object in a single line of code. Will only set properties that are part of a class declaration.
$properties optional array() _stop( integer|string $status 0 )
Stop execution of the current script. Wraps exit() making testing easier.
$status optional 0 dispatchMethod( string $method , array $params array() )
Calls a method on this object with the given parameters. Provides an OO wrapper for call_user_func_array
$method $params optional array() mixedlog( string $msg , integer $type LOG_ERR , null|string|array $scope null )
Convenience method to write a message to CakeLog. See CakeLog::write() for more information on writing to logs.
$msg $type optional LOG_ERR $scope optional null booleanrequestAction( string|array $url , array $extra array() )
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()
POST and GET data can be simulated in requestAction. Use $extra['url'] for GET data. The $extra['data'] parameter allows POST data simulation.
$url $extra optional array() mixedtoString( )
Object-to-string conversion. Each class can override this method as necessary.
stringstring | TYPE_ELEMENT Constant for view file type 'element' | 'element' |
string | TYPE_LAYOUT Constant for view file type 'layout' | 'layout' |
string | TYPE_VIEW Constant for view file type 'view' | 'view' |
public CacheHelper
public FormHelper
public HtmlHelper
public NumberHelper
public PaginatorHelper
public SessionHelper
public TextHelper
public TimeHelper
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http://api.cakephp.org/2.7/class-View.html