Class JsonView

$this->set(compact('posts', 'users', 'stuff'));
$this->set('_serialize', array('posts', 'users'));

__constructsource public

__construct( Controller $controller null )

Constructor

Parameters

Controller $controller optional null

Controller instance.

Overrides

View::__construct()

_serializesource protected

_serialize( array $serialize )

Serialize view vars

Special parameters

_jsonOptions You can set custom options for json_encode() this way, e.g. JSON_HEX_TAG | JSON_HEX_APOS.

Parameters

array $serialize

The viewVars that need to be serialized

Returns

string
The serialized data

Throws

CakeException
CakeException

loadHelperssource public

loadHelpers( )

Skip loading helpers if this is a _serialize based view.

Overrides

View::loadHelpers()

rendersource public

render( string $view null , string $layout null )

Render a JSON view.

Special parameters

_serialize To convert a set of view variables into a JSON response. Its value can be a string for single variable name or array for multiple names. You can omit the_serialize parameter, and use a normal view + layout as well. _jsonp Enables JSONP support and wraps response in callback function provided in query string. - Setting it to true enables the default query string parameter "callback". - Setting it to a string value, uses the provided query string parameter for finding the JSONP callback name.

Parameters

string $view optional null

The view being rendered.

string $layout optional null

The layout being rendered.

Returns

string
The rendered view.

Throws

CakeException
If there is an error in the view.

Overrides

View::render()

__getsource public

__get( string $name )

Magic accessor for helpers. Provides access to attributes that were deprecated.

Parameters

string $name

Name of the attribute to get.

Returns

mixed
mixed

__issetsource public

__isset( string $name )

Magic isset check for deprecated attributes.

Parameters

string $name

Name of the attribute to check.

Returns

boolean
bool

__setsource public

__set( string $name , mixed $value )

Magic accessor for deprecated attributes.

Parameters

string $name

Name of the attribute to set.

mixed $value

Value of the attribute to set.

Returns

mixed
mixed

_elementCachesource protected

_elementCache( string $name , string $data , array $options )

Checks if an element is cached and returns the cached data if present

Parameters

string $name

Element name

string $data

Data

array $options

Element options

Returns

string|null
string|null

_evaluatesource protected

_evaluate( string $viewFile , array $dataForView )

Sandbox method to evaluate a template / view script in.

Parameters

string $viewFile

Filename of the view

array $dataForView

Data to include in rendered view. If empty the current View::$viewVars will be used.

Returns

string
Rendered output

_getElementFileNamesource protected

_getElementFileName( string $name )

Finds an element filename, returns false on failure.

Parameters

string $name

The name of the element to find.

Returns

mixed
Either a string to the element filename or false when one can't be found.

_getExtensionssource protected

_getExtensions( )

Get the extensions that view files can use.

Returns

array
Array of extensions view files use.

_getLayoutFileNamesource protected

_getLayoutFileName( string $name null )

Returns layout filename for this template as a string.

Parameters

string $name optional null

The name of the layout to find.

Returns

string
Filename for layout file (.ctp).

Throws

MissingLayoutException
when a layout cannot be located

_getViewFileNamesource protected

_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.

Parameters

string $name optional null

Controller action to find template filename for

Returns

string
Template filename

Throws

MissingViewException
when a view file could not be found.

_pathssource protected

_paths( string $plugin null , boolean $cached true )

Return all possible paths to find view files in order

Parameters

string $plugin optional null

Optional plugin name to scan for view files.

boolean $cached optional true

Set to false to force a refresh of view paths. Default true.

Returns

array
paths

_rendersource protected

_render( string $viewFile , array $data array() )

Renders and returns output for given view filename with its array of data. Handles parent/extended views.

Parameters

string $viewFile

Filename of the view

array $data optional array()

Data to include in rendered view. If empty the current View::$viewVars will be used.

Returns

string
Rendered output

Throws

CakeException
when a block is left open.

Triggers

View.beforeRenderFile $this, array($viewFile)
View.afterRenderFile $this, array($viewFile, $content)

_renderElementsource protected

_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

Parameters

string $file

Element file path

array $data

Data to render

array $options

Element options

Returns

string
string

Triggers

View.beforeRender $this, array($file)
View.afterRender $this, array($file, $element)

addScriptsource public

addScript( 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

Deprecated

3.0.0 Will be removed in 3.0. Superseded by blocks functionality.

Parameters

string $name

Either the key name for the script, or the script content. Name can be used to update/replace a script element.

string $content optional null

The content of the script being added, optional.

See

View::start()

appendsource public

append( string $name , mixed $value null )

Append to an existing or new block. Appending to a new block will create the block.

Parameters

string $name

Name of the block

mixed $value optional null

The content for the block.

See

ViewBlock::concat()

assignsource public

assign( string $name , mixed $value )

Set the content for a block. This will overwrite any existing content.

Parameters

string $name

Name of the block

mixed $value

The content for the block.

See

ViewBlock::set()

blockssource public

blocks( )

Get the names of all the existing blocks.

Returns

array
An array containing the blocks.

See

ViewBlock::keys()

elementsource public

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.

Parameters

string $name

Name of template file in the/app/View/Elements/ 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.

array $data optional array()

Array of data to be made available to the rendered view (i.e. the Element)

array $options optional array()

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_ - 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.

Returns

string
Rendered Element

elementExistssource public

elementExists( string $name )

Checks if an element exists

Parameters

string $name

Name of template file in the /app/View/Elements/ 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.

Returns

boolean
Success

endsource public

end( )

End a capturing block. The compliment to View::start()

See

ViewBlock::end()

existssource public

exists( string $name )

Check if a block exists

Parameters

string $name

Name of the block

Returns

boolean
bool

extendsource public

extend( string $name )

Provides view or element extension/inheritance. Views can extends a parent view and populate blocks in the parent template.

Parameters

string $name

The view or element to 'extend' the current one with.

Throws

LogicException
when you extend a view with itself or make extend loops.
LogicException
when you extend an element which doesn't exist

fetchsource public

fetch( string $name , string $default '' )

Fetch the content for a block. If a block is empty or undefined '' will be returned.

Parameters

string $name

Name of the block

string $default optional ''

Default text

Returns

string
default The block content or $default if the block does not exist.

See

ViewBlock::get()

getsource public

get( string $var , mixed $default null )

Returns the contents of the given View variable.

Parameters

string $var

The view var you want the contents of.

mixed $default optional null

The default/fallback content of $var.

Returns

mixed
The content of the named var if its set, otherwise $default.

getCurrentTypesource public

getCurrentType( )

Retrieve the current view type

Returns

string
string

getEventManagersource public

getEventManager( )

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.

Returns

CakeEventManager
CakeEventManager

getVarsource public

getVar( string $var )

Returns the contents of the given View variable(s)

Deprecated

3.0.0 Will be removed in 3.0. Use View::get() instead.

Parameters

string $var

The view var you want the contents of.

Returns

mixed
The content of the named var if its set, otherwise null.

getVarssource public

getVars( )

Returns a list of variables available in the current View context

Returns

array
Array of the set view variable names.

loadHelpersource public

loadHelper( string $helperName , array $settings array() )

Loads a helper. Delegates to the HelperCollection::load() to load the helper

Parameters

string $helperName

Name of the helper to load.

array $settings optional array()

Settings for the helper

Returns

Helper
a constructed helper object.

See

HelperCollection::load()

pluginSplitsource public

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

Parameters

string $name

The name you want to plugin split.

boolean $fallback optional true

If true uses the plugin set in the current CakeRequest when parsed plugin is not loaded

Returns

array
Array with 2 indexes. 0 => plugin name, 1 => filename

prependsource public

prepend( string $name , mixed $value null )

Prepend to an existing or new block. Prepending to a new block will create the block.

Parameters

string $name

Name of the block

mixed $value optional null

The content for the block.

See

ViewBlock::concat()

renderCachesource public

renderCache( string $filename , string $timeStart )

Render cached view. Works in concert with CacheHelper and Dispatcher to render cached view files.

Parameters

string $filename

the cache file to include

string $timeStart

the page render start time

Returns

boolean
Success of rendering the cached file.

renderLayoutsource public

renderLayout( 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 file
• scripts_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.

Parameters

string $content

Content to render in a view, wrapped by the surrounding layout.

string $layout optional null

Layout name

Returns

mixed
Rendered output, or false on error

Throws

CakeException
if there is an error in the view.

Triggers

View.beforeLayout $this, array($layoutFileName)
View.afterLayout $this, array($layoutFileName)

setsource public

set( 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().

Parameters

string|array $one

A string or an array of data.

string|array $two optional null

Value in case $one is a string (which then works as the key). Unused if $one is an associative array, otherwise serves as the values to $one's keys.

startsource public

start( string $name )

Start capturing output for a 'block'

Parameters

string $name

The name of the block to capture for.

See

ViewBlock::start()

startIfEmptysource public

startIfEmpty( string $name )

Start capturing output for a 'block' if it has no content

Parameters

string $name

The name of the block to capture for.

See

ViewBlock::startIfEmpty()

uuidsource public

uuid( string $object , string $url )

Generates a unique, non-random DOM ID for an object, based on the object type and the target URL.

Parameters

string $object

Type of object, i.e. 'form' or 'link'

string $url

The object's target URL

Returns

string
string

_mergeVarssource protected

_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.

Parameters

array $properties

The name of the properties to merge.

string $class

The class to merge the property with.

boolean $normalize optional true

Set to true to run the properties through Hash::normalize() before merging.

_setsource protected

_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.

Parameters

array $properties optional array()

An associative array containing properties and corresponding values.

_stopsource protected

_stop( integer|string $status 0 )

Stop execution of the current script. Wraps exit() making testing easier.

Parameters

integer|string $status optional 0

see http://php.net/exit for values

dispatchMethodsource public

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

Parameters

string $method

Name of the method to call

array $params optional array()

Parameter list to use when calling $method

Returns

mixed
Returns the result of the method call

logsource public

log( 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.

Parameters

string $msg

Log message

integer $type optional LOG_ERR

Error type constant. Defined in app/Config/core.php.

null|string|array $scope optional null

The scope(s) a log message is being created in. See CakeLog::config() for more information on logging scopes.

Returns

boolean
Success of log write

requestActionsource public

requestAction( 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()

Passing POST and GET data

POST and GET data can be simulated in requestAction. Use $extra['url'] for GET data. The $extra['data'] parameter allows POST data simulation.

Parameters

string|array $url

String or array-based URL. Unlike other URL arrays in CakePHP, this URL will not automatically handle passed and named arguments in the $url parameter.

array $extra optional array()

if array includes the key "return" it sets the AutoRender to true. Can also be used to submit GET/POST data, and named/passed arguments.

Returns

mixed
Boolean true or false on success/failure, or contents of rendered action if 'return' is set in $extra.

toStringsource public

toString( )

Object-to-string conversion. Each class can override this method as necessary.

Returns

string
The name of this class

'json'

null

''

null

false

array()

array(
    'viewVars', 'autoLayout', 'ext', 'helpers', 'view', 'layout', 'name', 'theme',
    'layoutPath', 'viewPath', 'request', 'plugin', 'passedArgs', 'cacheAction'
)

array()

array()

array()

array()

true

false

'default'

array()

'.ctp'

false

array()

'default'

null

null

array()

null

null

array()

array()

null

null

array()