Class HtmlHelper
Html Helper class for easy use of HTML widgets.
HtmlHelper encloses all methods needed while working with HTML pages.
Property Summary
-
$Url public @property
Cake\View\Helper\UrlHelper
-
$_View protected
Cake\View\View
The View instance this helper is attached to
-
$_config protected
array
Runtime config
-
$_configInitialized protected
bool
Whether the config property has already been configured with defaults
-
$_crumbs protected deprecated
array
Breadcrumbs.
-
$_defaultConfig protected
array
Default config for this class
-
$_docTypes protected
array
Document type definitions
-
$_helperMap protected
array
A helper lookup table used to lazy load helper objects.
-
$_includedAssets protected
array
Names of script & css files that have been included once
-
$_scriptBlockOptions protected
array
Options for the currently opened script block buffer if any.
-
$_templater protected
Cake\View\StringTemplate
StringTemplate instance.
-
$fieldset public
array
Holds the fields ['field_name' => ['type' => 'string', 'length' => 100]], primaryKey and validates ['field_name']
-
$helpers public
array
List of helpers used by this helper
-
$plugin public
string
Plugin path
-
$request public
Cake\Http\ServerRequest
Request object
-
$response public
Cake\Http\Response
Reference to the Response object
-
$tags public
array
Holds tag templates.
-
$theme public
string
The current theme name if any.
Method Summary
-
__call() public
Provide non fatal errors on missing method calls.
-
__construct() public
Constructor
-
__debugInfo() public
Returns an array that can be used to describe the internal state of this object.
-
__get() public
Lazy loads helpers.
-
_configDelete() protected
Deletes a single config key.
-
_configRead() protected
Reads a config key.
-
_configWrite() protected
Writes a config key.
-
_confirm() protected
Returns a string to be used as onclick handler for confirm dialogs.
-
_nestedListItem() protected
Internal function to build a nested list (UL/OL) out of an associative array.
-
_prepareCrumbs() protected deprecated
Prepends startText to crumbs array if set
-
_renderCells() protected
Renders cells for a row of a table.
-
addClass() public
Adds the given class to the element options
-
addCrumb() public deprecated
Adds a link to the breadcrumbs array.
-
charset() public
Returns a charset META-tag.
-
config() public deprecated
Gets/Sets the config.
-
configShallow() public
Merge provided config with existing config. Unlike
config()
which does a recursive merge for nested keys, this method does a simple merge. -
css() public
Creates a link element for CSS stylesheets.
-
div() public
Returns a formatted DIV tag for HTML FORMs.
-
docType() public
Returns a doctype string.
-
formatTemplate() public
Formats a template string with $data
-
getConfig() public
Returns the config.
-
getCrumbList() public deprecated
Returns breadcrumbs as a (x)html list
-
getCrumbs() public deprecated
Returns the breadcrumb trail as a sequence of »-separated links.
-
getTemplates() public
Gets templates to use or a specific template.
-
getView() public
Get the view instance this helper is bound to.
-
image() public
Creates a formatted IMG element.
-
implementedEvents() public
Event listeners.
-
initialize() public
Constructor hook method.
-
link() public
Creates an HTML link.
-
media() public
Returns an audio/video element
-
meta() public
Creates a link to an external resource and handles basic meta tags
-
nestedList() public
Build a nested list (UL/OL) out of an associative array.
-
para() public
Returns a formatted P tag.
-
script() public
Returns one or many
<script>
tags depending on the number of scripts given. -
scriptBlock() public
Wrap $script in a script tag.
-
scriptEnd() public
End a Buffered section of JavaScript capturing. Generates a script tag inline or appends to specified view block depending on the settings used when the scriptBlock was started
-
scriptStart() public
Begin a script block that captures output until HtmlHelper::scriptEnd() is called. This capturing block will capture all output between the methods and create a scriptBlock from it.
-
setConfig() public
Sets the config.
-
setTemplates() public
Sets templates to use.
-
style() public
Builds CSS style data from an array of CSS properties
-
tableCell() public
Renders a single table cell (A TD with attributes).
-
tableCells() public
Returns a formatted string of table rows (TR's with TD's in them).
-
tableHeaders() public
Returns a row of formatted and named TABLE headers.
-
tableRow() public
Renders a single table row (A TR with attributes).
-
tag() public
Returns a formatted block tag, i.e DIV, SPAN, P.
-
templater() public
Returns the templater instance.
-
templates() public deprecated
Gets/sets templates to use.
Method Detail
__call() ¶ public
__call(string $method, array $params): void
Provide non fatal errors on missing method calls.
Parameters
-
string
$method Method to invoke
-
array
$params Array of params for the method.
Returns
void
__construct() ¶ public
__construct(Cake\View\View $View, array $config = [])
Constructor
Settings
templates
Either a filename to a config containing templates. Or an array of templates to load. See Cake\View\StringTemplate for template formatting.
Customizing tag sets
Using the templates
option you can redefine the tag HtmlHelper will use.
Parameters
-
Cake\View\View
$View The View this helper is being attached to.
-
array
$config optional Configuration settings for the helper.
__debugInfo() ¶ public
__debugInfo(): array
Returns an array that can be used to describe the internal state of this object.
Returns
array
__get() ¶ public
__get(string $name): Cake\View\Helper|null
Lazy loads helpers.
Parameters
-
string
$name Name of the property being accessed.
Returns
Cake\View\Helper|null
_configDelete() ¶ protected
_configDelete(string $key): void
Deletes a single config key.
Parameters
-
string
$key Key to delete.
Returns
void
Throws
Cake\Core\Exception\Exception
if attempting to clobber existing config
_configRead() ¶ protected
_configRead(string|null $key): mixed
Reads a config key.
Parameters
-
string|null
$key Key to read.
Returns
mixed
_configWrite() ¶ protected
_configWrite(string|array $key, mixed $value, bool|string $merge = false): void
Writes a config key.
Parameters
-
string|array
$key Key to write to.
-
mixed
$value Value to write.
-
bool|string
$merge optional True to merge recursively, 'shallow' for simple merge, false to overwrite, defaults to false.
Returns
void
Throws
Cake\Core\Exception\Exception
if attempting to clobber existing config
_confirm() ¶ protected
_confirm(string $message, string $okCode, string $cancelCode = '', array $options = []): string
Returns a string to be used as onclick handler for confirm dialogs.
Parameters
-
string
$message Message to be displayed
-
string
$okCode Code to be executed after user chose 'OK'
-
string
$cancelCode optional Code to be executed after user chose 'Cancel'
-
array
$options optional Array of options
Returns
string
_nestedListItem() ¶ protected
_nestedListItem(array $items, array $options, array $itemOptions): string
Internal function to build a nested list (UL/OL) out of an associative array.
Parameters
-
array
$items Set of elements to list.
-
array
$options Additional HTML attributes of the list (ol/ul) tag.
-
array
$itemOptions Options and additional HTML attributes of the list item (LI) tag.
Returns
string
See Also
_prepareCrumbs() ¶ protected
_prepareCrumbs(string|array|bool $startText, bool $escape = true): array
Prepends startText to crumbs array if set
Parameters
-
string|array|bool
$startText Text to prepend
-
bool
$escape optional If the output should be escaped or not
Returns
array
_renderCells() ¶ protected
_renderCells(array $line, bool $useCount = false): string[]
Renders cells for a row of a table.
This is a helper method for tableCells(). Overload this method as you need to change the behavior of the cell rendering.
Parameters
-
array
$line Line data to render.
-
bool
$useCount optional Renders the count into the row. Default is false.
Returns
string[]
addClass() ¶ public
addClass(array $options = [], string|null $class = null, string $key = 'class'): array
Adds the given class to the element options
Parameters
-
array
$options optional Array options/attributes to add a class to
-
string|null
$class optional The class name being added.
-
string
$key optional the key to use for class.
Returns
array
addCrumb() ¶ public
addCrumb(string $name, string|array|null $link = null, array $options = []): $this
Adds a link to the breadcrumbs array.
Parameters
-
string
$name Text for link
-
string|array|null
$link optional URL for link (if empty it won't be a link)
-
array
$options optional Link attributes e.g. ['id' => 'selected']
Returns
$this
See Also
Links
charset() ¶ public
charset(string|null $charset = null): string
Returns a charset META-tag.
Parameters
-
string|null
$charset optional The character set to be used in the meta tag. If empty, The App.encoding value will be used. Example: "utf-8".
Returns
string
Links
config() ¶ public
config(string|array|null $key = null, mixed|null $value = null, bool $merge = true): mixed
Gets/Sets the config.
Usage
Reading the whole config:
$this->config();
Reading a specific value:
$this->config('key');
Reading a nested value:
$this->config('some.nested.key');
Setting a specific value:
$this->config('key', $value);
Setting a nested value:
$this->config('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->config(['one' => 'value', 'another' => 'value']);
Parameters
-
string|array|null
$key optional The key to get/set, or a complete array of configs.
-
mixed|null
$value optional The value to set.
-
bool
$merge optional Whether to recursively merge or overwrite existing config, defaults to true.
Returns
mixed
Throws
Cake\Core\Exception\Exception
When trying to set a key that is invalid.
configShallow() ¶ public
configShallow(string|array $key, mixed|null $value = null): $this
Merge provided config with existing config. Unlike config()
which does
a recursive merge for nested keys, this method does a simple merge.
Setting a specific value:
$this->configShallow('key', $value);
Setting a nested value:
$this->configShallow('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->configShallow(['one' => 'value', 'another' => 'value']);
Parameters
-
string|array
$key The key to set, or a complete array of configs.
-
mixed|null
$value optional The value to set.
Returns
$this
css() ¶ public
css(string|array $path, array $options = []): string|null
Creates a link element for CSS stylesheets.
Usage
Include one CSS file:
echo $this->Html->css('styles.css');
Include multiple CSS files:
echo $this->Html->css(['one.css', 'two.css']);
Add the stylesheet to view block "css":
$this->Html->css('styles.css', ['block' => true]);
Add the stylesheet to a custom block:
$this->Html->css('styles.css', ['block' => 'layoutCss']);
Options
block
Set to true to append output to view block "css" or provide custom block name.once
Whether or not the css file should be checked for uniqueness. If true css files will only be included once, use false to allow the same css to be included more than once per request.plugin
False value will prevent parsing path as a pluginrel
Defaults to 'stylesheet'. If equal to 'import' the stylesheet will be imported.fullBase
If true the URL will get a full address for the css file.
Parameters
-
string|array
$path The name of a CSS style sheet or an array containing names of CSS stylesheets. If
$path
is prefixed with '/', the path will be relative to the webroot of your application. Otherwise, the path will be relative to your CSS path, usually webroot/css.-
array
$options optional Array of options and HTML arguments.
Returns
string|null
Links
div() ¶ public
div(string|null $class = null, string|null $text = null, array $options = []): string
Returns a formatted DIV tag for HTML FORMs.
Options
escape
Whether or not the contents should be html_entity escaped.
Parameters
-
string|null
$class optional CSS class name of the div element.
-
string|null
$text optional String content that will appear inside the div element. If null, only a start tag will be printed
-
array
$options optional Additional HTML attributes of the DIV tag
Returns
string
docType() ¶ public
docType(string $type = 'html5'): string|null
Returns a doctype string.
Possible doctypes:
- html4-strict: HTML4 Strict.
- html4-trans: HTML4 Transitional.
- html4-frame: HTML4 Frameset.
- html5: HTML5. Default value.
- xhtml-strict: XHTML1 Strict.
- xhtml-trans: XHTML1 Transitional.
- xhtml-frame: XHTML1 Frameset.
- xhtml11: XHTML1.1.
Parameters
-
string
$type optional Doctype to use.
Returns
string|null
Links
formatTemplate() ¶ public
formatTemplate(string $name, array $data): string
Formats a template string with $data
Parameters
-
string
$name The template name.
-
array
$data The data to insert.
Returns
string
getConfig() ¶ public
getConfig(string|null $key = null, mixed $default = null): mixed
Returns the config.
Usage
Reading the whole config:
$this->getConfig();
Reading a specific value:
$this->getConfig('key');
Reading a nested value:
$this->getConfig('some.nested.key');
Reading with default value:
$this->getConfig('some-key', 'default-value');
Parameters
-
string|null
$key optional The key to get or null for the whole config.
-
mixed
$default optional The return value when the key does not exist.
Returns
mixed
getCrumbList() ¶ public
getCrumbList(array $options = [], string|array|bool $startText = false): string|null
Returns breadcrumbs as a (x)html list
This method uses HtmlHelper::tag() to generate list and its elements. Works similar to HtmlHelper::getCrumbs(), so it uses options which every crumb was added with.
Options
separator
Separator content to insert in between breadcrumbs, defaults to ''firstClass
Class for wrapper tag on the first breadcrumb, defaults to 'first'lastClass
Class for wrapper tag on current active page, defaults to 'last'
Parameters
-
array
$options optional Array of HTML attributes to apply to the generated list elements.
-
string|array|bool
$startText optional This will be the first crumb, if false it defaults to first crumb in array. Can also be an array, see
HtmlHelper::getCrumbs
for details.
Returns
string|null
Links
getCrumbs() ¶ public
getCrumbs(string $separator = '»', string|array|bool $startText = false): string|null
Returns the breadcrumb trail as a sequence of »-separated links.
If $startText
is an array, the accepted keys are:
text
Define the text/content for the link.url
Define the target of the created link.
All other keys will be passed to HtmlHelper::link() as the $options
parameter.
Parameters
-
string
$separator optional Text to separate crumbs.
-
string|array|bool
$startText optional This will be the first crumb, if false it defaults to first crumb in array. Can also be an array, see above for details.
Returns
string|null
Links
getTemplates() ¶ public
getTemplates(string|null $template = null): string|array
Gets templates to use or a specific template.
Parameters
-
string|null
$template optional String for reading a specific template, null for all.
Returns
string|array
getView() ¶ public
getView(): Cake\View\View
Get the view instance this helper is bound to.
Returns
Cake\View\View
image() ¶ public
image(string|array $path, array $options = []): string
Creates a formatted IMG element.
This method will set an empty alt attribute if one is not supplied.
Usage:
Create a regular image:
echo $this->Html->image('cake_icon.png', ['alt' => 'CakePHP']);
Create an image link:
echo $this->Html->image('cake_icon.png', ['alt' => 'CakePHP', 'url' => 'https://cakephp.org']);
Options:
url
If provided an image link will be generated and the link will point at$options['url']
.fullBase
If true the src attribute will get a full address for the image file.plugin
False value will prevent parsing path as a plugin
Parameters
-
string|array
$path Path to the image file, relative to the app/webroot/img/ directory.
-
array
$options optional Array of HTML attributes. See above for special options.
Returns
string
Links
implementedEvents() ¶ public
implementedEvents(): array
Event listeners.
By defining one of the callback methods a helper is assumed to be interested in the related event.
Override this method if you need to add non-conventional event listeners. Or if you want helpers to listen to non-standard events.
Returns
array
initialize() ¶ public
initialize(array $config): void
Constructor hook method.
Implement this method to avoid having to overwrite the constructor and call parent.
Parameters
-
array
$config The configuration settings provided to this helper.
Returns
void
link() ¶ public
link(string|array $title, string|array|null $url = null, array $options = []): string
Creates an HTML link.
If $url starts with "http://" this is treated as an external link. Else, it is treated as a path to controller/action and parsed with the UrlHelper::build() method.
If the $url is empty, $title is used instead.
Options
escape
Set to false to disable escaping of title and attributes.escapeTitle
Set to false to disable escaping of title. Takes precedence over value ofescape
)confirm
JavaScript confirmation message.
Parameters
-
string|array
$title The content to be wrapped by
<a>
tags. Can be an array if $url is null. If $url is null, $title will be used as both the URL and title.-
string|array|null
$url optional Cake-relative URL or array of URL parameters, or external URL (starts with http://)
-
array
$options optional Array of options and HTML attributes.
Returns
string
Links
media() ¶ public
media(string|array $path, array $options = []): string
Returns an audio/video element
Usage
Using an audio file:
echo $this->Html->media('audio.mp3', ['fullBase' => true]);
Outputs:
<video src="http://www.somehost.com/files/audio.mp3">Fallback text</video>
Using a video file:
echo $this->Html->media('video.mp4', ['text' => 'Fallback text']);
Outputs:
<video src="/files/video.mp4">Fallback text</video>
Using multiple video files:
echo $this->Html->media(
['video.mp4', ['src' => 'video.ogv', 'type' => "video/ogg; codecs='theora, vorbis'"]],
['tag' => 'video', 'autoplay']
);
Outputs:
<video autoplay="autoplay">
<source src="/files/video.mp4" type="video/mp4"/>
<source src="/files/video.ogv" type="video/ogv; codecs='theora, vorbis'"/>
</video>
Options
tag
Type of media element to generate, either "audio" or "video". If tag is not provided it's guessed based on file's mime type.text
Text to include inside the audio/video tagpathPrefix
Path prefix to use for relative URLs, defaults to 'files/'fullBase
If provided the src attribute will get a full address including domain name
Parameters
-
string|array
$path Path to the video file, relative to the webroot/{$options['pathPrefix']} directory. Or an array where each item itself can be a path string or an associate array containing keys
src
andtype
-
array
$options optional Array of HTML attributes, and special options above.
Returns
string
meta() ¶ public
meta(string|array $type, string|array|null $content = null, array $options = []): string|null
Creates a link to an external resource and handles basic meta tags
Create a meta tag that is output inline:
$this->Html->meta('icon', 'favicon.ico');
Append the meta tag to custom view block "meta":
$this->Html->meta('description', 'A great page', ['block' => true]);
Append the meta tag to custom view block:
$this->Html->meta('description', 'A great page', ['block' => 'metaTags']);
Create a custom meta tag:
$this->Html->meta(['property' => 'og:site_name', 'content' => 'CakePHP']);
Options
block
- Set to true to append output to view block "meta" or provide custom block name.
Parameters
-
string|array
$type The title of the external resource, Or an array of attributes for a custom meta tag.
-
string|array|null
$content optional The address of the external resource or string for content attribute
-
array
$options optional Other attributes for the generated tag. If the type attribute is html, rss, atom, or icon, the mime-type is returned.
Returns
string|null
Links
nestedList() ¶ public
nestedList(array $list, array $options = [], array $itemOptions = []): string
Build a nested list (UL/OL) out of an associative array.
Options for $options:
tag
- Type of list tag to use (ol/ul)
Options for $itemOptions:
even
- Class to use for even rows.odd
- Class to use for odd rows.
Parameters
-
array
$list Set of elements to list
-
array
$options optional Options and additional HTML attributes of the list (ol/ul) tag.
-
array
$itemOptions optional Options and additional HTML attributes of the list item (LI) tag.
Returns
string
Links
para() ¶ public
para(string $class, string $text, array $options = []): string
Returns a formatted P tag.
Options
escape
Whether or not the contents should be html_entity escaped.
Parameters
-
string
$class CSS class name of the p element.
-
string
$text String content that will appear inside the p element.
-
array
$options optional Additional HTML attributes of the P tag
Returns
string
script() ¶ public
script(string|array $url, array $options = []): string|null
Returns one or many <script>
tags depending on the number of scripts given.
If the filename is prefixed with "/", the path will be relative to the base path of your application. Otherwise, the path will be relative to your JavaScript path, usually webroot/js.
Usage
Include one script file:
echo $this->Html->script('styles.js');
Include multiple script files:
echo $this->Html->script(['one.js', 'two.js']);
Add the script file to a custom block:
$this->Html->script('styles.js', ['block' => 'bodyScript']);
Options
block
Set to true to append output to view block "script" or provide custom block name.once
Whether or not the script should be checked for uniqueness. If true scripts will only be included once, use false to allow the same script to be included more than once per request.plugin
False value will prevent parsing path as a pluginfullBase
If true the url will get a full address for the script file.
Parameters
-
string|array
$url String or array of javascript files to include
-
array
$options optional Array of options, and html attributes see above.
Returns
string|null
Links
scriptBlock() ¶ public
scriptBlock(string $script, array $options = []): string|null
Wrap $script in a script tag.
Options
safe
(boolean) Whether or not the $script should be wrapped in<![CDATA[ ]]>
. Defaults tofalse
.block
Set to true to append output to view block "script" or provide custom block name.
Parameters
-
string
$script The script to wrap
-
array
$options optional The options to use. Options not listed above will be treated as HTML attributes.
Returns
string|null
Links
scriptEnd() ¶ public
scriptEnd(): string|null
End a Buffered section of JavaScript capturing. Generates a script tag inline or appends to specified view block depending on the settings used when the scriptBlock was started
Returns
string|null
Links
scriptStart() ¶ public
scriptStart(array $options = []): void
Begin a script block that captures output until HtmlHelper::scriptEnd() is called. This capturing block will capture all output between the methods and create a scriptBlock from it.
Options
safe
(boolean) Whether or not the $script should be wrapped in<![CDATA[ ]]>
. See scriptBlock().block
Set to true to append output to view block "script" or provide custom block name.
Parameters
-
array
$options optional Options for the code block.
Returns
void
Links
setConfig() ¶ public
setConfig(string|array $key, mixed|null $value = null, bool $merge = true): $this
Sets the config.
Usage
Setting a specific value:
$this->setConfig('key', $value);
Setting a nested value:
$this->setConfig('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->setConfig(['one' => 'value', 'another' => 'value']);
Parameters
-
string|array
$key The key to set, or a complete array of configs.
-
mixed|null
$value optional The value to set.
-
bool
$merge optional Whether to recursively merge or overwrite existing config, defaults to true.
Returns
$this
Throws
Cake\Core\Exception\Exception
When trying to set a key that is invalid.
setTemplates() ¶ public
setTemplates(array $templates): $this
Sets templates to use.
Parameters
-
array
$templates Templates to be added.
Returns
$this
style() ¶ public
style(array $data, bool $oneLine = true): string
Builds CSS style data from an array of CSS properties
Usage:
echo $this->Html->style(['margin' => '10px', 'padding' => '10px'], true);
// creates
'margin:10px;padding:10px;'
Parameters
-
array
$data Style data array, keys will be used as property names, values as property values.
-
bool
$oneLine optional Whether or not the style block should be displayed on one line.
Returns
string
Links
tableCell() ¶ public
tableCell(string $content, array $options = []): string
Renders a single table cell (A TD with attributes).
Parameters
-
string
$content The content of the cell.
-
array
$options optional HTML attributes.
Returns
string
tableCells() ¶ public
tableCells(array|string $data, array|bool|null $oddTrOptions = null, array|bool|null $evenTrOptions = null, bool $useCount = false, bool $continueOddEven = true): string
Returns a formatted string of table rows (TR's with TD's in them).
Parameters
-
array|string
$data Array of table data
-
array|bool|null
$oddTrOptions optional HTML options for odd TR elements if true useCount is used
-
array|bool|null
$evenTrOptions optional HTML options for even TR elements
-
bool
$useCount optional adds class "column-$i"
-
bool
$continueOddEven optional If false, will use a non-static $count variable, so that the odd/even count is reset to zero just for that call.
Returns
string
Links
tableHeaders() ¶ public
tableHeaders(array $names, array|null $trOptions = null, array|null $thOptions = null): string
Returns a row of formatted and named TABLE headers.
Parameters
-
array
$names Array of tablenames. Each tablename also can be a key that points to an array with a set of attributes to its specific tag
-
array|null
$trOptions optional HTML options for TR elements.
-
array|null
$thOptions optional HTML options for TH elements.
Returns
string
Links
tableRow() ¶ public
tableRow(string $content, array $options = []): string
Renders a single table row (A TR with attributes).
Parameters
-
string
$content The content of the row.
-
array
$options optional HTML attributes.
Returns
string
tag() ¶ public
tag(string $name, string|null $text = null, array $options = []): string
Returns a formatted block tag, i.e DIV, SPAN, P.
Options
escape
Whether or not the contents should be html_entity escaped.
Parameters
-
string
$name Tag name.
-
string|null
$text optional String content that will appear inside the div element. If null, only a start tag will be printed
-
array
$options optional Additional HTML attributes of the DIV tag, see above.
Returns
string
templater() ¶ public
templater(): Cake\View\StringTemplate
Returns the templater instance.
Returns
Cake\View\StringTemplate
templates() ¶ public
templates(string|null|array $templates = null): $this|string|array
Gets/sets templates to use.
Parameters
-
string|null|array
$templates optional null or string allow reading templates. An array allows templates to be added.
Returns
$this|string|array
Property Detail
$_configInitialized ¶ protected
Whether the config property has already been configured with defaults
Type
bool
$_scriptBlockOptions ¶ protected
Options for the currently opened script block buffer if any.
Type
array
$fieldset ¶ public
Holds the fields ['field_name' => ['type' => 'string', 'length' => 100]], primaryKey and validates ['field_name']
Type
array