Drupal\file\FileUsage\FileUsageBase | Drupal Core API Explorer

abstract class FileUsageBase implements FileUsageInterface (View source)

Defines the base class for database file usage backend.

Properties

protected ConfigFactoryInterface

$configFactory

The config factory.

__construct(ConfigFactoryInterface $config_factory)

Creates a FileUsageBase object.

add(FileInterface $file, string $module, string $type, string $id, int $count = 1)

Records that a module is using a file.

delete(FileInterface $file, string $module, string $type = NULL, string $id = NULL, int $count = 1)

Removes a record to indicate that a module is no longer using a file.

Creates a FileUsageBase object.

$config_factory

The config factory.

Records that a module is using a file.

Examples:

A module that associates files with nodes, so $type would be 'node' and $id would be the node's nid. Files for all revisions are stored within a single nid.
The User module associates an image with a user, so $type would be 'user' and the $id would be the user's uid.

FileInterface	$file	A file entity.
string	$module	The name of the module using the file.
string	$type	The type of the object that contains the referenced file.
string	$id	The unique ID of the object containing the referenced file.
int	$count	(optional) The number of references to add to the object. Defaults to 1.

Removes a record to indicate that a module is no longer using a file.

FileInterface	$file	A file entity.
string	$module	The name of the module using the file.
string	$type	(optional) The type of the object that contains the referenced file. May be omitted if all module references to a file are being deleted. Defaults to NULL.
string	$id	(optional) The unique ID of the object containing the referenced file. May be omitted if all module references to a file are being deleted. Defaults to NULL.
int	$count	(optional) The number of references to delete from the object. Defaults to 1. Zero may be specified to delete all references to the file within a specific object.