File Storage

This section describes the filesystem abstraction layer used in the Oro application to access data files.

The file storage abstraction is based on KnpGaufretteBundle with GaufretteBundle that enables a filesystem abstraction layer in the Oro applications and provides a simplified file manager service for media files.

File storage can be configured to use different types of filesystem adapters to store the data, for example, your local filesystem, GridFS storage, etc.

Types of Storage

By default, the file storage component provides two types of storage with Gaufrette adapters:

• private
• public

The private file storage adapter is implemented to store data that should not be available via a direct link. Examples of such data types are attachments’ data, import and export files, protected media cache files, etc. If the local filesystem adapter is used by default, then data will be stored in the /var/data directory of the application.

The public file storage adapter is implemented to store data that can be available via a direct link without access checks. Examples of such data are resized product images, sitemap files, etc. If the local filesystem adapter is used by default, data will be stored in the public/media directory of the application.

Access to Data in Storage

The main access point to the files in storage is the FileManager service.

Each type of storage can store different types of data. For example, private storage stores the attachment data and import/export data files.

To implement the access point to your type of data in the storage:

• Add new Gaufrette filesystem configuration into the Resources/config/oro/app.yml file of your bundle and set private or public as the filesystem adapter:

knp_gaufrette:
    filesystems:
        some_storage:
            adapter: private # the type of storage (public or private)
            alias: some_storage_filesystem

• Register the FileManager service as the child of the oro_gaufrette.file_manager service:

acme.file_manager:
    parent: oro_gaufrette.file_manager
    arguments:
        - 'some_storage' # the name of Gaufrette filesystem should be used as the storage.

As a result, the acme.file_manager service will be the entry point of your new private file storage.

By default, if the Gaufrette local filesystem adapter is used to store files for a filesystem, the data will be saved to the sub-directory with the name of the Gaufrette filesystem used for this file storage.

For the previous example, this default path is the var/data/some_storage directory of the application.

For the public filesystem, it is public/media/your_filesystem_name.

You can change this sub-directory name by setting them as the second parameter of the file manager service declaration:

acme.file_manager:
    parent: oro_gaufrette.file_manager
    arguments:
        - 'some_storage' # the name of the Gaufrette filesystem should be used as the storage.
        - 'another_sub_directory' # data will save to another_sub_directory subdirectory.

Simple Access to Public Storage Files

If the Gaufrette local filesystem adapter is used to store files for the public filesystem, all the files stored in this filesystem will be available via direct URI http://your_domain/media/sub_directory/filename.

But if the storage uses another adapter type, for example, the GridFS storage type by GridFSConfigBundle, this URIs will not work and you will have to implement access points to the files manually.

To simplify this case, configure the file manager service with the oro_gaufrette.public_filesystem_manager tag. In this case, the files of such storage will be available via the http://your_domain/media/sub_directory/filename path, regardless of the adapter configuration used for the public type file storage.

For example, is you have configured my_public Gaufrette filesystem that uses the public adapter, the configuration of the file manager service can be the following:

acme.public_file_manager:
    parent: oro_gaufrette.file_manager
    arguments:
        - 'my_public'
    tags:
        - { name: oro_gaufrette.public_filesystem_manager }

In this example, the files are available via the http://your_domain/media/my_public/filename URIs.

Access to Data via Stream Wrappers

Files in the filesystem can be accessed via stream wrappers, as well as with the help of the FileManager service.

The application has two stream wrappers configured to be used with Gaufrette filesystems:

• Common wrapper by the KnpGaufretteBundle;
• Read-only wrapper by the OroGaufretteBundle.

The common stream wrapper allows to get full access to the files stored in the filesystem. By default, the wrapper is configured to use the gaufrette protocol. To get the full URL of a file use getFilePath() method of the FileManager service.

The read-only stream wrapper can be used if you need to read data but do not know if the data to be written is available. For example, this case can be figured if the local adapter was used and the files were uploaded by someone other than the user that runs the application. By default, the wrapper is configured to use the gaufrette-readonly protocol. To get the full URL of a file use getReadonlyFilePath() method of the FileManager service.

• Adapters Configuration