Class JsonView

A view class that is used for JSON responses.

It allows you to omit templates if you just need to emit JSON string as response.

In your controller, you could do the following:

$this->set(['posts' => $posts]);
$this->set('_serialize', true);

When the view is rendered, the $posts view variable will be serialized into JSON.

You can also set multiple view variables for serialization. This will create a top level object containing all the named view variables:

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

The above would generate a JSON object that looks like:

{"posts": [...], "users": [...]}

You can also set '_serialize' to a string or array to serialize only the specified view variables.

If you don't use the _serialize, you will need a view template. You can use extended views to provide layout-like functionality.

You can also enable JSONP support by setting parameter _jsonp to true or a string to specify custom query string parameter name which will contain the callback function name.

Namespace: Cake\View

Constants summary

  • string
    NAME_ELEMENT
    'Element'
  • string
    NAME_TEMPLATE
    'Template'
  • string
    TYPE_ELEMENT
    'element'
  • string
    TYPE_LAYOUT
    'layout'
  • string
    TYPE_TEMPLATE
    'view'
  • string
    TYPE_VIEW
    'view'

Properties summary

  • $Blocks protected
    \Cake\View\ViewBlock

    ViewBlock instance.

  • $Breadcrumbs public
    \Cake\View\Helper\BreadcrumbsHelper
  • $Flash public
    \Cake\View\Helper\FlashHelper
  • $Form public
    \Cake\View\Helper\FormHelper
  • $Html public
    \Cake\View\Helper\HtmlHelper
  • $Number public
    \Cake\View\Helper\NumberHelper
  • $Paginator public
    \Cake\View\Helper\PaginatorHelper
  • $Rss public
    \Cake\View\Helper\RssHelper
  • $Session public
    \Cake\View\Helper\SessionHelper
  • $Text public
    \Cake\View\Helper\TextHelper
  • $Time public
    \Cake\View\Helper\TimeHelper
  • $Url public
    \Cake\View\Helper\UrlHelper
  • $_current protected
    string

    The currently rendering view file. Used for resolving parent files.

  • $_currentType protected
    string

    Currently rendering an element. Used for finding parent fragments for elements.

  • $_eventClass protected
    string

    Default class name for new event objects.

  • $_eventManager protected
    \Cake\Event\EventManagerInterface|\Cake\Event\EventManager

    Instance of the Cake\Event\EventManager this object is using to dispatch inner events.

  • $_ext protected
    string

    File extension. Defaults to CakePHP's template ".ctp".

  • $_helpers protected
    \Cake\View\HelperRegistry

    Helpers collection

  • $_parents protected
    string[]

    The names of views and their parents used with View::extend();

  • $_passedVars protected
    string[]

    List of variables to collect from the associated controller.

  • $_paths protected
    string[]

    Holds an array of paths.

  • $_pathsForPlugin protected
    string[][]

    Holds an array of plugin paths.

  • $_responseType protected
    string

    Response type.

  • $_specialVars protected
    array

    List of special view vars.

  • $_stack protected
    string[]

    Content stack, used for nested templates that all use View::extend();

  • array
  • $_viewBlockClass protected
    string

    ViewBlock class.

  • $_viewBuilder protected
    \Cake\View\ViewBuilder

    The view builder instance being used.

  • $autoLayout protected
    bool

    Turns on or off CakePHP's conventional mode of applying layout files. On by default.

  • $elementCache protected
    string

    The Cache configuration View will use to store cached elements. Changing this will change the default configuration elements are stored under. You can also choose a cache config per element.

  • $hasRendered public
    bool

    True when the view has been rendered.

  • $helpers protected
    array

    An array of names of built-in helpers to include.

  • $layout protected
    string

    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.

  • $layoutPath protected
    string

    JSON layouts are located in the json sub directory of Layouts/

  • $name protected
    string

    Name of the controller that created the View if any.

  • $passedArgs public
    array

    Current passed params. Passed to View from the creating Controller for convenience.

  • $plugin protected
    string|null

    The name of the plugin.

  • $request protected
    \Cake\Http\ServerRequest

    An instance of a \Cake\Http\ServerRequest object that contains information about the current request.

  • $response protected
    \Cake\Http\Response

    Reference to the Response object

  • $subDir protected
    string

    JSON views are located in the 'json' sub directory for controllers' views.

  • $template protected
    string

    The name of the template file to render. The name specified is the filename in /src/Template/ without the .ctp extension.

  • $templatePath protected
    string

    The name of the subfolder containing templates for this View.

  • $theme protected
    string|null

    The view theme to use.

  • $uuids public
    string[]

    List of generated DOM UUIDs.

  • $view public
    string
  • $viewClass public
    string|null

    The name of default View class.

  • $viewPath public
    string
  • $viewVars public
    array

    Variables for the view.

Method Summary

  • __construct() public

    Constructor

  • __get() public

    Magic accessor for helpers.

  • __set() public

    Magic setter for deprecated properties.

  • _checkFilePath() protected

    Check that a view file path does not go outside of the defined template paths.

  • _createCell() protected

    Create and configure the cell instance.

  • _dataToSerialize() protected

    Returns data to be serialized.

  • _elementCache() protected

    Generate the cache configuration options for an element.

  • _evaluate() protected

    Sandbox method to evaluate a template / view script in.

  • _getElementFileName() protected

    Finds an element filename, returns false on failure.

  • _getLayoutFileName() protected

    Returns layout filename for this template as a string.

  • _getSubPaths() protected

    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.

  • _getViewFileName() protected

    Returns filename of given action's template file (.ctp) as a string.

  • _inflectViewFileName() protected

    Change the name of a view template file into underscored format.

  • _paths() protected

    Return all possible paths to find view files in order

  • _render() protected

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

  • _renderElement() protected

    Renders an element and fires the before and afterRender callbacks for it and writes to the cache if a cache is used

  • _serialize() protected

    Serialize view vars

  • append() public

    Append to an existing or new block.

  • assign() public

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

  • autoLayout() public

    Turns on or off CakePHP's conventional mode of applying layout files.

  • blocks() public

    Get the names of all the existing blocks.

  • cache() public

    Create a cached block of view logic.

  • cell() protected

    Renders the given cell.

  • createView() public

    Constructs the view class instance based on the current configuration.

  • disableAutoLayout() public

    Turns off CakePHP's conventional mode of applying layout files.

  • dispatchEvent() public

    Wrapper for creating and dispatching events.

  • element() public

    Renders a piece of PHP with provided parameters and returns HTML, XML, or any other string.

  • elementExists() public

    Checks if an element exists

  • enableAutoLayout() public

    Turns on or off CakePHP's conventional mode of applying layout files.

  • end() public

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

  • eventManager() public

    Returns the Cake\Event\EventManager manager instance for this object.

  • exists() public

    Check if a block exists

  • extend() public

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

  • fetch() public

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

  • get() public

    Returns the contents of the given View variable.

  • getCurrentType() public

    Retrieve the current view type

  • getEventManager() public

    Returns the Cake\Event\EventManager manager instance for this object.

  • getLayout() public

    Get the name of the layout file to render the template inside of.

  • getLayoutPath() public

    Get path for layout files.

  • getName() public

    Returns the View's controller name.

  • getPlugin() public

    Returns the plugin name.

  • getRequest() public

    Gets the request instance.

  • getResponse() public

    Gets the response instance.

  • getSubDir() public

    Get sub-directory for this template files.

  • getTemplate() public

    Get the name of the template file to render. The name specified is the filename in /src/Template/ without the .ctp extension.

  • getTemplatePath() public

    Get path for templates files.

  • getTheme() public

    Get the current view theme.

  • getVars() public

    Returns a list of variables available in the current View context

  • helpers() public

    Get the helper registry in use by this View class.

  • initialize() public

    Initialization hook method.

  • isAutoLayoutEnabled() public

    Returns if CakePHP's conventional mode of applying layout files is enabled.

  • layout() public

    Get/set the name of the layout file to render the template inside of.

  • layoutPath() public

    Get/set path for layout files.

  • loadHelper() public

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

  • loadHelpers() public

    Load helpers only if serialization is disabled.

  • log() public

    Convenience method to write a message to Log. See Log::write() for more information on writing to logs.

  • pluginSplit() public

    Splits a dot syntax plugin name into its plugin and filename.

  • prepend() public

    Prepend to an existing or new block.

  • render() public

    Render a JSON view.

  • renderLayout() public

    Renders a layout. Returns output from _render(). Returns false on error.

  • requestAction() public

    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.

  • reset() public

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

  • set() public

    Saves a variable or an associative array of variables for use inside a template.

  • setElementCache() public

    Set The cache configuration View will use to store cached elements

  • setEventManager() public

    Returns the Cake\Event\EventManager manager instance for this object.

  • setLayout() public

    Set the name of the layout file to render the template inside of.

  • setLayoutPath() public

    Set path for layout files.

  • setPlugin() public

    Sets the plugin name.

  • setRequest() public

    Sets the request objects and configures a number of controller properties based on the contents of the request. The properties that get set are:

  • setResponse() public

    Sets the response instance.

  • setSubDir() public

    Set sub-directory for this template files.

  • setTemplate() public

    Set the name of the template file to render. The name specified is the filename in /src/Template/ without the .ctp extension.

  • setTemplatePath() public

    Set path for templates files.

  • setTheme() public

    Set the view theme to use.

  • start() public

    Start capturing output for a 'block'

  • template() public

    Get/set the name of the template file to render. The name specified is the filename in /src/Template/ without the .ctp extension.

  • templatePath() public

    Get/set path for templates files.

  • theme() public

    The view theme to use.

  • uuid() public

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

  • viewBuilder() public

    Get the view builder being used.

  • viewOptions() public

    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().

Method Detail

__construct() public

__construct(\Cake\Http\ServerRequest $request, \Cake\Http\Response $response, \Cake\Event\EventManager $eventManager, array $viewOptions)

Constructor

Parameters

\Cake\Http\ServerRequest|null $request optional

Request instance.

\Cake\Http\Response|null $response optional

Response instance.

\Cake\Event\EventManager|null $eventManager optional

EventManager instance.

array $viewOptions optional

An array of view options

__get() public

__get(mixed $name)

Magic accessor for helpers.

Parameters

string $name

Name of the attribute to get.

Returns

mixed

__set() public

__set(mixed $name, mixed $value)

Magic setter for deprecated properties.

Parameters

string $name

Name to property.

mixed $value

Value for property.

_checkFilePath() protected

_checkFilePath(mixed $file, mixed $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.

Parameters

string $file

The path to the template file.

string $path

Base path that $file should be inside of.

Returns

string

The file path

Throws

InvalidArgumentException

_createCell() protected

_createCell(mixed $className, mixed $action, mixed $plugin, mixed $options)

Create and configure the cell instance.

Parameters

string $className

The cell classname.

string $action

The action name.

string $plugin

The plugin name.

array $options

The constructor options for the cell.

Returns

\Cake\View\Cell

_dataToSerialize() protected

_dataToSerialize(mixed $serialize)

Returns data to be serialized.

Parameters

array|string|bool $serialize optional

The name(s) of the view variable(s) that need(s) to be serialized. If true all available view variables will be used.

Returns

mixed

The data to serialize.

_elementCache() protected

_elementCache(mixed $name, mixed $data, mixed $options)

Generate the cache configuration options for an element.

Parameters

string $name

Element name

array $data

Data

array $options

Element options

Returns

array

Element Cache configuration.

_evaluate() protected

_evaluate(mixed $viewFile, mixed $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.

Returns

string

Rendered output

_getElementFileName() protected

_getElementFileName(mixed $name, mixed $pluginCheck)

Finds an element filename, returns false on failure.

Parameters

string $name

The name of the element to find.

bool $pluginCheck optional
  • if false will ignore the request's plugin if parsed plugin is not loaded

Returns

string|false

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

_getLayoutFileName() protected

_getLayoutFileName(mixed $name)

Returns layout filename for this template as a string.

Parameters

string|null $name optional

The name of the layout to find.

Returns

string

Filename for layout file (.ctp).

Throws

Cake\View\Exception\MissingLayoutException
when a layout cannot be located

_getSubPaths() protected

_getSubPaths(mixed $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.

Parameters

string $basePath

Base path on which to get the prefixed one.

Returns

array

Array with all the templates paths.

_getViewFileName() protected

_getViewFileName(mixed $name)

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.

Parameters

string|null $name optional

Controller action to find template filename for

Returns

string

Template filename

Throws

Cake\View\Exception\MissingTemplateException
when a view file could not be found.

_inflectViewFileName() protected

_inflectViewFileName(mixed $name)

Change the name of a view template file into underscored format.

Parameters

string $name

Name of file which should be inflected.

Returns

string

File name after conversion

_paths() protected

_paths(mixed $plugin, mixed $cached)

Return all possible paths to find view files in order

Parameters

string|null $plugin optional

Optional plugin name to scan for view files.

bool $cached optional

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

Returns

string[]

paths

_render() protected

_render(mixed $viewFile, mixed $data)

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

Parameters

string $viewFile

Filename of the view

array $data optional

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

Returns

string

Rendered output

Throws

LogicException
When a block is left open.

_renderElement() protected

_renderElement(mixed $file, mixed $data, mixed $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

_serialize() protected

_serialize(mixed $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|string|bool $serialize

The name(s) of the view variable(s) that need(s) to be serialized. If true all available view variables.

Returns

string|false

The serialized data, or boolean false if not serializable.

append() public

append(mixed $name, mixed $value)

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

The content for the block. Value will be type cast to string.

Returns

$this

See Also

\Cake\View\ViewBlock::concat()

assign() public

assign(mixed $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. Value will be type cast to string.

Returns

$this

See Also

\Cake\View\ViewBlock::set()

autoLayout() public

autoLayout(mixed $autoLayout)

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.

Parameters

bool|null $autoLayout optional

Boolean to turn on/off. If null returns current value.

Returns

bool|null

blocks() public

blocks()

Get the names of all the existing blocks.

Returns

string[]

An array containing the blocks.

See Also

\Cake\View\ViewBlock::keys()

cache() public

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.

Parameters

callable $block

The block of code that you want to cache the output of.

array $options optional

The options defining the cache key etc.

Returns

string

The rendered content.

Throws

RuntimeException
When $options is lacking a 'key' option.

cell() protected

cell(mixed $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.

Parameters

string $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.

array $data optional

Additional arguments for cell method. e.g.: cell('TagCloud::smallList', ['a1' => 'v1', 'a2' => 'v2']) maps to View\Cell\TagCloud::smallList(v1, v2)

array $options optional

Options for Cell's constructor

Returns

\Cake\View\Cell

The cell instance

Throws

Cake\View\Exception\MissingCellException
If Cell class was not found.
BadMethodCallException
If Cell class does not specified cell action.

createView() public

createView(mixed $viewClass)

Constructs the view class instance based on the current configuration.

Parameters

string|null $viewClass optional

Optional namespaced class name of the View class to instantiate.

Returns

\Cake\View\View

Throws

Cake\View\Exception\MissingViewException
If view class was not found.

disableAutoLayout() public

disableAutoLayout()

Turns off CakePHP's conventional mode of applying layout files.

Layouts will not be automatically applied to rendered views.

Returns

$this

dispatchEvent() public

dispatchEvent(mixed $name, mixed $data, mixed $subject)

Wrapper for creating and dispatching events.

Returns a dispatched event.

Parameters

string $name

Name of the event.

array|null $data optional

Any value you wish to be transported with this event to it can be read by listeners.

object|null $subject optional

The object that this event applies to ($this by default).

Returns

\Cake\Event\Event

element() public

element(mixed $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.

Parameters

string $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.

array $data optional

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

array $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

Returns

string

Rendered Element

Throws

Cake\View\Exception\MissingElementException
When an element is missing and `ignoreMissing` is false.

elementExists() public

elementExists(mixed $name)

Checks if an element exists

Parameters

string $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.

Returns

bool

Success

enableAutoLayout() public

enableAutoLayout(mixed $enable)

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 views.

Parameters

bool $enable optional

Boolean to turn on/off.

Returns

$this

end() public

end()

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

Returns

$this

See Also

\Cake\View\ViewBlock::end()

eventManager() public

eventManager(\Cake\Event\EventManager $eventManager)

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.

Parameters

\Cake\Event\EventManager|null $eventManager optional

the eventManager to set

Returns

\Cake\Event\EventManager

exists() public

exists(mixed $name)

Check if a block exists

Parameters

string $name

Name of the block

Returns

bool

extend() public

extend(mixed $name)

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

Parameters

string $name

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

Returns

$this

Throws

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

fetch() public

fetch(mixed $name, mixed $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

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

See Also

\Cake\View\ViewBlock::get()

get() public

get(mixed $var, mixed $default)

Returns the contents of the given View variable.

Parameters

string $var

The view var you want the contents of.

mixed $default optional

The default/fallback content of $var.

Returns

mixed

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

getCurrentType() public

getCurrentType()

Retrieve the current view type

Returns

string

getEventManager() public

getEventManager()

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.

Returns

\Cake\Event\EventManager

getLayout() public

getLayout()

Get 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.

Returns

string

getLayoutPath() public

getLayoutPath()

Get path for layout files.

Returns

string

getName() public

getName()

Returns the View's controller name.

Returns

string|null

getPlugin() public

getPlugin()

Returns the plugin name.

Returns

string|null

getRequest() public

getRequest()

Gets the request instance.

Returns

\Cake\Http\ServerRequest

getResponse() public

getResponse()

Gets the response instance.

Returns

\Cake\Http\Response

getSubDir() public

getSubDir()

Get sub-directory for this template files.

Returns

string

See Also

\Cake\View\View::$subDir

getTemplate() public

getTemplate()

Get the name of the template file to render. The name specified is the filename in /src/Template/ without the .ctp extension.

Returns

string

getTemplatePath() public

getTemplatePath()

Get path for templates files.

Returns

string

getTheme() public

getTheme()

Get the current view theme.

Returns

string|null

getVars() public

getVars()

Returns a list of variables available in the current View context

Returns

string[]

Array of the set view variable names.

helpers() public

helpers()

Get the helper registry in use by this View class.

Returns

\Cake\View\HelperRegistry

initialize() public

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.

isAutoLayoutEnabled() public

isAutoLayoutEnabled()

Returns if CakePHP's conventional mode of applying layout files is enabled.

Disabled means that layouts will not be automatically applied to rendered views.

Returns

bool

layout() public

layout(mixed $name)

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.

Parameters

string|null $name optional

Layout file name to set. If null returns current name.

Returns

string|null

layoutPath() public

layoutPath(mixed $path)

Get/set path for layout files.

Parameters

string|null $path optional

Path for layout files. If null returns current path.

Returns

string|null

loadHelper() public

loadHelper(mixed $name, array $config)

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

Parameters

string $name

Name of the helper to load.

array $config optional

Settings for the helper

Returns

\Cake\View\Helper

a constructed helper object.

See Also

\Cake\View\HelperRegistry::load()

loadHelpers() public

loadHelpers()

Load helpers only if serialization is disabled.

Returns

$this

log() public

log(mixed $message, mixed $level, mixed $context)

Convenience method to write a message to Log. See Log::write() for more information on writing to logs.

Parameters

mixed $message

Log message.

int|string $level optional

Error level.

string|array $context optional

Additional log data relevant to this message.

Returns

bool

Success of log write.

pluginSplit() public

pluginSplit(mixed $name, mixed $fallback)

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.

bool $fallback optional

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

Returns

array

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

prepend() public

prepend(mixed $name, mixed $value)

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

The content for the block. Value will be type cast to string.

Returns

$this

See Also

\Cake\View\ViewBlock::concat()

render() public

render(mixed $view, mixed $layout)

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. If true all view variables will be serialized. It unset normal view template will be rendered. _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|null $view optional

The view being rendered.

string|null $layout optional

The layout being rendered.

Returns

string|null

The rendered view.

renderLayout() public

renderLayout(mixed $content, mixed $layout)

Renders a layout. Returns output from _render(). Returns false on error.

Several variables are created for use in layout.

Parameters

string $content

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

string|null $layout optional

Layout name

Returns

string|false

Rendered output, or false on error

Throws

Cake\Core\Exception\Exception
if there is an error in the view.

requestAction() public

requestAction(mixed $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()

Examples

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']);

Passing other request data

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],
]);

Sending environment or header values

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']
]);

Transmitting the session

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)
]);

Parameters

string|array $url

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

array $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.

Returns

mixed

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

reset() public

reset(mixed $name)

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

Parameters

string $name

Name of the block

Returns

$this

See Also

\Cake\View\ViewBlock::set()

set() public

set(mixed $name, mixed $value)

Saves a variable or an associative array of variables for use inside a template.

Parameters

string|array $name

A string or an array of data.

mixed $value optional

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.

Returns

$this

setElementCache() public

setElementCache(mixed $elementCache)

Set The cache configuration View will use to store cached elements

Parameters

string $elementCache

Cache config name.

Returns

$this

See Also

\Cake\View\View::$elementCache

setEventManager() public

setEventManager(\Cake\Event\EventManager $eventManager)

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.

Parameters

\Cake\Event\EventManager $eventManager

the eventManager to set

Returns

$this

setLayout() public

setLayout(mixed $name)

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.

Parameters

string $name

Layout file name to set.

Returns

$this

setLayoutPath() public

setLayoutPath(mixed $path)

Set path for layout files.

Parameters

string $path

Path for layout files.

Returns

$this

setPlugin() public

setPlugin(mixed $name)

Sets the plugin name.

Parameters

string $name

Plugin name.

Returns

$this

setRequest() public

setRequest(\Cake\Http\ServerRequest $request)

Sets the request objects and configures a number of controller properties based on the contents of the request. The properties that get set are:

  • $this->request - To the $request parameter
  • $this->plugin - To the value returned by $request->getParam('plugin')
  • $this->passedArgs - Same as $request->params['pass]

Parameters

\Cake\Http\ServerRequest $request

Request instance.

Returns

$this

setResponse() public

setResponse(\Cake\Http\Response $response)

Sets the response instance.

Parameters

\Cake\Http\Response $response

Response instance.

Returns

$this

setSubDir() public

setSubDir(mixed $subDir)

Set sub-directory for this template files.

Parameters

string $subDir

Sub-directory name.

Returns

$this

See Also

\Cake\View\View::$subDir

setTemplate() public

setTemplate(mixed $name)

Set the name of the template file to render. The name specified is the filename in /src/Template/ without the .ctp extension.

Parameters

string $name

Template file name to set.

Returns

$this

setTemplatePath() public

setTemplatePath(mixed $path)

Set path for templates files.

Parameters

string $path

Path for template files.

Returns

$this

setTheme() public

setTheme(mixed $theme)

Set the view theme to use.

Parameters

string|null $theme

Theme name.

Returns

$this

start() public

start(mixed $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();

Parameters

string $name

The name of the block to capture for.

Returns

$this

See Also

\Cake\View\ViewBlock::start()

template() public

template(mixed $name)

Get/set the name of the template file to render. The name specified is the filename in /src/Template/ without the .ctp extension.

Parameters

string|null $name optional

Template file name to set. If null returns current name.

Returns

string|null

templatePath() public

templatePath(mixed $path)

Get/set path for templates files.

Parameters

string|null $path optional

Path for template files. If null returns current path.

Returns

string|null

theme() public

theme(mixed $theme)

The view theme to use.

Parameters

string|null $theme optional

Theme name. If null returns current theme.

Returns

string|null

uuid() public

uuid(mixed $object, mixed $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

viewBuilder() public

viewBuilder()

Get the view builder being used.

Returns

\Cake\View\ViewBuilder

viewOptions() public

viewOptions(mixed $options, mixed $merge)

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().

Parameters

string|array|null $options optional

string or array of string to be appended to _validViewOptions.

bool $merge optional

Whether to merge with or override existing valid View options. Defaults to true.

Returns

array

The updated view options as an array.

Property Detail

$Blocks protected

ViewBlock instance.

Type

\Cake\View\ViewBlock

$Breadcrumbs public

Type

\Cake\View\Helper\BreadcrumbsHelper

$Flash public

Type

\Cake\View\Helper\FlashHelper

$Form public

Type

\Cake\View\Helper\FormHelper

$Html public

Type

\Cake\View\Helper\HtmlHelper

$Number public

Type

\Cake\View\Helper\NumberHelper

$Paginator public

Type

\Cake\View\Helper\PaginatorHelper

$Rss public

Type

\Cake\View\Helper\RssHelper

$Session public

Type

\Cake\View\Helper\SessionHelper

$Text public

Type

\Cake\View\Helper\TextHelper

$Time public

Type

\Cake\View\Helper\TimeHelper

$Url public

Type

\Cake\View\Helper\UrlHelper

$_current protected

The currently rendering view file. Used for resolving parent files.

Type

string

$_currentType protected

Currently rendering an element. Used for finding parent fragments for elements.

Type

string

$_eventClass protected

Default class name for new event objects.

Type

string

$_eventManager protected

Instance of the Cake\Event\EventManager this object is using to dispatch inner events.

Type

\Cake\Event\EventManagerInterface|\Cake\Event\EventManager

$_ext protected

File extension. Defaults to CakePHP's template ".ctp".

Type

string

$_helpers protected

Helpers collection

Type

\Cake\View\HelperRegistry

$_parents protected

The names of views and their parents used with View::extend();

Type

string[]

$_passedVars protected

List of variables to collect from the associated controller.

Type

string[]

$_paths protected

Holds an array of paths.

Type

string[]

$_pathsForPlugin protected

Holds an array of plugin paths.

Type

string[][]

$_responseType protected

Response type.

Type

string

$_specialVars protected

List of special view vars.

Type

array

$_stack protected

Content stack, used for nested templates that all use View::extend();

Type

string[]

$_validViewOptions public

Type

array

$_viewBlockClass protected

ViewBlock class.

Type

string

$_viewBuilder protected

The view builder instance being used.

Type

\Cake\View\ViewBuilder

$autoLayout protected

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.

Type

bool

$elementCache protected

The Cache configuration View will use to store cached elements. Changing this will change the default configuration elements are stored under. You can also choose a cache config per element.

Type

string

$hasRendered public

True when the view has been rendered.

Type

bool

$helpers protected

An array of names of built-in helpers to include.

Type

array

$layout protected

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.

Type

string

$layoutPath protected

JSON layouts are located in the json sub directory of Layouts/

Type

string

$name protected

Name of the controller that created the View if any.

Type

string

$passedArgs public

Current passed params. Passed to View from the creating Controller for convenience.

Type

array

$plugin protected

The name of the plugin.

Type

string|null

$request protected

An instance of a \Cake\Http\ServerRequest object that contains information about the current request.

This object contains all the information about a request and several methods for reading additional information about the request.

Type

\Cake\Http\ServerRequest

$response protected

Reference to the Response object

Type

\Cake\Http\Response

$subDir protected

JSON views are located in the 'json' sub directory for controllers' views.

Type

string

$template protected

The name of the template file to render. The name specified is the filename in /src/Template/ without the .ctp extension.

Type

string

$templatePath protected

The name of the subfolder containing templates for this View.

Type

string

$theme protected

The view theme to use.

Type

string|null

$uuids public

List of generated DOM UUIDs.

Type

string[]

$view public

Type

string

$viewClass public

The name of default View class.

Type

string|null

$viewPath public

Type

string

$viewVars public

Variables for the view.

Deprecated: This property will be removed in 4.x. Inside controller context use $this->set() instead, also see $this->viewBuilder()->getVar(). In view context it will be a protected property View::$viewVars.

Type

array

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https://api.cakephp.org/3.9/class-Cake.View.JsonView.html