LegacyThumbnailMigrationHelper
class LegacyThumbnailMigrationHelper
Service to migrate legacy format thumbnails, to avoid regenerating them on demand.
Related to SilverStripe\AssetAdmin\Helper\ImageThumbnailHelper, which proactively generates the (new) thumbnails required for asset-admin previews.
Migrates thumbnails regardless whether their original file still exists, since they might still be hot-linked. Relies on the legacy file format redirections introduced in 4.3.3 and 4.4.0 for those hot-links to continue resolving.
Example file format:
Before (3.x): assets/my-folder/_resampled/PadWzYwLDYwLCJGRkZGRkYiLDBd/FillWzYwLDMwXQ/my-image.jpg
After (4.x): assets/my-folder/0ec62bd1c4/my-image__PadWzYwLDYwLCJGRkZGRkYiLDBd_CropHeightWzMwXQ.jpg
Limitations: - Does not migrate legacy thumbnails where the original file or folder has been renamed since an earlier 4.x migration run - Does not filter out unused CMS thumbnails (they're using a new size now) - Does not move legacy thumbnails to the protected store if the original file has been unpublished or protected since an earlier 4.x migration run
Traits
Methods
An implementation of the factory method, allows you to create an instance of a class
Creates a class instance by the "singleton" design pattern.
Get a configuration accessor for this class. Short hand for Config::inst()->get($this->class, .
Gets the uninherited value for the given config option
No description
No description
Details
in Injectable at line 26
static Injectable
create(array $args)
An implementation of the factory method, allows you to create an instance of a class
This method will defer class substitution to the Injector API, which can be customised via the Config API to declare substitution classes.
This can be called in one of two ways - either calling via the class directly, or calling on Object and passing the class name as the first parameter. The following are equivalent: $list = DataList::create('SiteTree'); $list = SiteTree::get();
in Injectable at line 43
static Injectable
singleton(string $class = null)
Creates a class instance by the "singleton" design pattern.
It will always return the same instance for this class, which can be used for performance reasons and as a simple way to access instance methods which don't rely on instance data (e.g. the custom SilverStripe static handling).
in Configurable at line 20
static Config_ForClass
config()
Get a configuration accessor for this class. Short hand for Config::inst()->get($this->class, .
....).
in Configurable at line 32
mixed
stat(string $name)
deprecated
deprecated 5.0 Use ->config()->get() instead
Get inherited config value
in Configurable at line 44
mixed
uninherited(string $name)
Gets the uninherited value for the given config option
in Configurable at line 57
$this
set_stat(string $name, mixed $value)
deprecated
deprecated 5.0 Use ->config()->set() instead
Update the config value for a given property
at line 53
__construct()
at line 64
array
run(FlysystemAssetStore $store)
Perform migration