AssetsController

Type

Class

Namespace

craft\controllers

Inherits

craft\controllers\AssetsController » craft\web\Controller » yii\web\Controller » yii\base\Controller » yii\base\Component » yii\base\BaseObject

Implements

yii\base\Configurable, yii\base\ViewContextInterface

Since

3.0.0

The AssetsController class is a controller that handles various actions related to asset tasks, such as uploading files and creating/deleting/renaming files and folders.

Note that all actions in the controller except for actionGenerateTransform() and actionGenerateThumb() require an authenticated Craft session via allowAnonymous.

View source

Public Properties

Property	Description
action	yii\base\Action – The action that is currently being executed.
actionParams	array – The parameters bound to the current action.
behaviors	yii\base\Behavior – List of behaviors attached to this component
defaultAction	string – The ID of the action that is used when the action ID is not specified in the request.
enableCsrfValidation	boolean – Whether to enable CSRF validation for the actions in this controller.
id	string – The ID of this controller.
layout	null, string, false – The name of the layout to be applied to this controller's views.
module	yii\base\Module – The module that this controller belongs to.
modules	yii\base\Module – All ancestor modules that this controller is located within.
request	yii\base\Request, array, string – The request.
response	yii\base\Response, array, string – The response.
route	string – The route (module ID, controller ID and action ID) of the current request.
uniqueId	string – The controller ID that is prefixed with the module ID (if any).
view	yii\base\View, yii\web\View – The view object that can be used to render views or view files.
viewPath	string – The view path that may be prefixed to a relative view name.

Protected Properties

Property	Description
allowAnonymous	integer, boolean, integer[], string[] – Whether this controller’s actions can be accessed anonymously.

allowAnonymous

Type

integer, boolean, integer[], string[]

Default value

['generate-thumb', 'generate-transform']

Whether this controller’s actions can be accessed anonymously.

This can be set to any of the following:

• false or self::ALLOW_ANONYMOUS_NEVER (default) – indicates that all controller actions should never be accessed anonymously
• true or self::ALLOW_ANONYMOUS_LIVE – indicates that all controller actions can be accessed anonymously when the system is live
• self::ALLOW_ANONYMOUS_OFFLINE – indicates that all controller actions can be accessed anonymously when the system is offline
• self::ALLOW_ANONYMOUS_LIVE | self::ALLOW_ANONYMOUS_OFFLINE – indicates that all controller actions can be accessed anonymously when the system is live or offline
• An array of action IDs (e.g. ['save-guest-entry', 'edit-guest-entry']) – indicates that the listed action IDs can be accessed anonymously when the system is live
• An array of action ID/bitwise pairs (e.g. ['save-guest-entry' => self::ALLOW_ANONYMOUS_OFFLINE] – indicates that the listed action IDs can be accessed anonymously per the bitwise int assigned to it.

View source

Public Methods

Method	Description
__call()	Calls the named method which is not a class method.
__clone()	This method is called after the object is created by cloning an existing one.
__construct()	Constructor.
__get()	Returns the value of an object property.
__isset()	Checks if a property is set, i.e. defined and not null.
__set()	Sets value of an object property.
__unset()	Sets an object property to null.
actionCreateFolder()	Create a folder.
actionDeleteAsset()	Delete an Asset.
actionDeleteFolder()	Delete a folder.
actionDownloadAsset()	Download a file.
actionEditAsset()	Edits an asset.
actionEditImage()	Get the image being edited.
actionGenerateThumb()	Generates a thumbnail.
actionGenerateTransform()	Generate a transform.
actionImageEditor()	Return the image editor template.
actionMoveAsset()	Move an Asset or multiple Assets.
actionMoveFolder()	Move a folder.
actionPreviewFile()	Return the file preview for an Asset.
actionPreviewThumb()	Returns an updated preview image for an asset.
actionRenameFolder()	Rename a folder
actionReplaceFile()	Replace a file
actionSaveAsset()	Saves an asset.
actionSaveImage()	Save an image according to posted parameters.
actionThumb()	Returns an asset’s thumbnail.
actionUpload()	Upload a file
actions()	Declares external actions for the controller.
afterAction()	This method is invoked right after an action is executed.
asErrorJson()	Responds to the request with a JSON error message.
asJson()	Send data formatted as JSON.
asJsonP()	Sets the response format of the given data as JSONP.
asRaw()	Sets the response format of the given data as RAW.
asXml()	Send data formatted as XML.
attachBehavior()	Attaches a behavior to this component.
attachBehaviors()	Attaches a list of behaviors to the component.
beforeAction()	This method is invoked right before an action is executed.
behaviors()	Returns a list of behaviors that this component should behave as.
bindActionParams()	Binds the parameters to the action.
canGetProperty()	Returns a value indicating whether a property can be read.
canSetProperty()	Returns a value indicating whether a property can be set.
className()	Returns the fully qualified name of this class.
createAction()	Creates an action based on the given action ID.
detachBehavior()	Detaches a behavior from the component.
detachBehaviors()	Detaches all behaviors from the component.
ensureBehaviors()	Makes sure that the behaviors declared in behaviors() are attached to this component.
findLayoutFile()	Finds the applicable layout file.
getBehavior()	Returns the named behavior object.
getBehaviors()	Returns all behaviors attached to this component.
getModules()	Returns all ancestor modules of this controller.
getRoute()	Returns the route of the current request.
getUniqueId()	Returns the unique ID of the controller.
getView()	Returns the view object that can be used to render views or view files.
getViewPath()
goBack()	Redirects the browser to the last visited page.
goHome()	Redirects the browser to the home page.
hasEventHandlers()	Returns a value indicating whether there is any handler attached to the named event.
hasMethod()	Returns a value indicating whether a method is defined.
hasProperty()	Returns a value indicating whether a property is defined.
init()	Initializes the object.
off()	Detaches an existing event handler from this component.
on()	Attaches an event handler to an event.
redirect()	Redirects the browser to the specified URL.
redirectToPostedUrl()	Redirects to the URI specified in the POST.
refresh()	Refreshes the current page.
render()	Renders a view and applies layout if available.
renderAjax()	Renders a view in response to an AJAX request.
renderContent()	Renders a static string by applying a layout.
renderFile()	Renders a view file.
renderPartial()	Renders a view without applying layout.
renderTemplate()	Renders a template.
requireAcceptsJson()	Throws a 400 error if the request doesn't accept JSON.
requireAdmin()	Throws a 403 error if the current user is not an admin.
requireAuthorization()	Checks whether the current user can perform a given action, and ends the request with a 403 error if they don’t.
requireCpRequest()	Throws a 400 error if the current request isn’t a control panel request.
requireElevatedSession()	Requires that the user has an elevated session.
requireGuest()	Redirects the user to the account template if they are logged in.
requireLogin()	Redirects the user to the login template if they're not logged in.
requirePermission()	Checks whether the current user has a given permission, and ends the request with a 403 error if they don’t.
requirePostRequest()	Throws a 400 error if this isn’t a POST request
requireSiteRequest()	Throws a 400 error if the current request isn’t a site request.
requireToken()	Throws a 400 error if the current request doesn’t have a valid Craft token.
run()	Runs a request specified in terms of a route.
runAction()	Runs an action within this controller with the specified action ID and parameters.
setFailFlash()	Sets an error flash message on the user session.
setSuccessFlash()	Sets a success flash message on the user session.
setView()	Sets the view object to be used by this controller.
setViewPath()	Sets the directory that contains the view files.
trigger()	Triggers an event.

actionCreateFolder()

Create a folder.

View source

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException
  if the parent folder cannot be found

actionDeleteAsset()

Delete an Asset.

View source

Returns

yii\web\Response, null

Throws

• yii\web\BadRequestHttpException
  if the folder cannot be found
• yii\web\ForbiddenHttpException
• craft\errors\AssetException

actionDeleteFolder()

Delete a folder.

View source

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException
  if the folder cannot be found

actionDownloadAsset()

Download a file.

View source

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException
  if the file to download cannot be found.

actionEditAsset()

Since

3.4.0

Edits an asset.

View source

Arguments

• $assetId (integer) – The asset ID
• $asset (craft\elements\Asset, null) – The asset being edited, if there were any validation errors.
• $site (string, null) – The site handle, if specified.

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException
  if $assetId is invalid
• yii\web\ForbiddenHttpException
  if the user isn't permitted to edit the asset

actionEditImage()

Get the image being edited.

View source

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException

actionGenerateThumb()

DEPRECATED

Deprecated in 3.0.13. Use actionThumb() instead.

Generates a thumbnail.

View source

Arguments

• $uid (string) – The asset's UID
• $width (integer) – The thumbnail width
• $height (integer) – The thumbnail height

Returns

yii\web\Response

actionGenerateTransform()

Generate a transform.

View source

Arguments

• $transformId (integer, null)

Returns

yii\web\Response

Throws

• yii\web\NotFoundHttpException
  if the transform can't be found
• yii\web\ServerErrorHttpException
  if the transform can't be generated

actionImageEditor()

Return the image editor template.

View source

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException
  if the Asset is missing.

actionMoveAsset()

Move an Asset or multiple Assets.

View source

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException
  if the asset or the target folder cannot be found

actionMoveFolder()

Move a folder.

View source

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException
  if the folder to move, or the destination parent folder, cannot be found

actionPreviewFile()

Return the file preview for an Asset.

View source

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException
  if not a valid request

actionPreviewThumb()

Since

3.4.0

Returns an updated preview image for an asset.

View source

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException

actionRenameFolder()

Rename a folder

View source

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException
  if the folder cannot be found

actionReplaceFile()

Replace a file

View source

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException
  if incorrect combination of parameters passed.
• yii\web\NotFoundHttpException
  if Asset cannot be found by id.

actionSaveAsset()

Since

3.4.0

Saves an asset.

View source

Returns

yii\web\Response, null

actionSaveImage()

Save an image according to posted parameters.

View source

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException
  if some parameters are missing.
• Throwable
  if something went wrong saving the Asset.

actionThumb()

Since

3.0.13

Returns an asset’s thumbnail.

View source

Arguments

• $uid (string) – The asset's UID
• $width (integer) – The thumbnail width
• $height (integer) – The thumbnail height

Returns

yii\web\Response

actionUpload()

Since

3.4.0

Upload a file

View source

Returns

yii\web\Response

Throws

• yii\web\BadRequestHttpException
  for reasons

Protected Methods

Method	Description
asBrokenImage()	Sends a broken image response based on a given exception.
bindInjectedParams()	Fills parameters based on types and names in action method signature.
requirePeerVolumePermissionByAsset()	Requires a volume permission by a given asset, only if it wasn't uploaded by the current user.
requireVolumePermission()	Requires a volume permission by its UID.
requireVolumePermissionByAsset()	Requires a volume permission by a given asset.
requireVolumePermissionByFolder()	Requires a volume permission by a given folder.

asBrokenImage()

Since

3.4.8

Sends a broken image response based on a given exception.

View source

Arguments

• $e (Throwable, null) – The exception that was thrown

Returns

yii\web\Response

requirePeerVolumePermissionByAsset()

Since

3.4.8

Requires a volume permission by a given asset, only if it wasn't uploaded by the current user.

View source

Arguments

• $permissionName (string) – The name of the peer permission to require (sans :<volume-uid> suffix)
• $asset (craft\elements\Asset) – The asset whose volume should be checked

Throws

• yii\web\ForbiddenHttpException

requireVolumePermission()

Since

3.4.8

Requires a volume permission by its UID.

View source

Arguments

• $permissionName (string) – The name of the peer permission to require (sans :<volume-uid> suffix)
• $volumeUid (string) – The volume’s UID

Throws

• yii\web\ForbiddenHttpException

requireVolumePermissionByAsset()

Since

3.4.8

Requires a volume permission by a given asset.

View source

Arguments

• $permissionName (string) – The name of the permission to require (sans :<volume-uid> suffix)
• $asset (craft\elements\Asset) – The asset whose volume should be checked

Throws

• yii\web\ForbiddenHttpException

requireVolumePermissionByFolder()

Since

3.4.8

Requires a volume permission by a given folder.

View source

Arguments

• $permissionName (string) – The name of the peer permission to require (sans :<volume-uid> suffix)
• $folder (craft\models\VolumeFolder) – The folder whose volume should be checked

Throws

• yii\web\ForbiddenHttpException

Constants

Constant	Description
ALLOW_ANONYMOUS_LIVE
ALLOW_ANONYMOUS_NEVER
ALLOW_ANONYMOUS_OFFLINE