API penyimpanan berkas¶

Mendapatkan penyimpanan saat ini¶

Django menyediakan dua cara meyakinkan untuk mengakses kelas penyimpanan saat ini:

class DefaultStorage¶

DefaultStorage provides lazy access to the current default storage system as defined by DEFAULT_FILE_STORAGE. DefaultStorage uses get_storage_class() internally.

get_storage_class(import_path=None)¶

Mengembalikan sebuah kelas atau modul yang menerapkan API penyimpanan.

When called without the import_path parameter get_storage_class will return the current default storage system as defined by DEFAULT_FILE_STORAGE. If import_path is provided, get_storage_class will attempt to import the class or module from the given path and will return it if successful. An exception will be raised if the import is unsuccessful.

Kelas FileSystemStorage¶

class FileSystemStorage(location=None, base_url=None, file_permissions_mode=None, directory_permissions_mode=None)¶

The FileSystemStorage class implements basic file storage on a local filesystem. It inherits from Storage and provides implementations for all the public methods thereof.

location¶

Absolute path to the directory that will hold the files. Defaults to the value of your MEDIA_ROOT setting.

base_url¶

URL yang melayani berkas-berkas disimppan pada tempat ini. Awalan pada nilai dari pengaturan MEDIA_URL anda.

file_permissions_mode¶

The file system permissions that the file will receive when it is saved. Defaults to FILE_UPLOAD_PERMISSIONS.

directory_permissions_mode¶

Perizinan sistem berkas dimana direktori akan menerima ketika itu disimpan. Awalan pada FILE_UPLOAD_DIRECTORY_PERMISSIONS.

Catatan

Metode FileSystemStorage.delete() tidak akan memunculkan sebuah pengecualian jika nama diberikan tidak ada.

get_created_time(name)¶

Returns a datetime of the system's ctime, i.e. os.path.getctime(). On some systems (like Unix), this is the time of the last metadata change, and on others (like Windows), it's the creation time of the file.

Kelas Storage¶

class Storage¶

The Storage class provides a standardized API for storing files, along with a set of default behaviors that all other storage systems can inherit or override as necessary.

Catatan

When methods return naive datetime objects, the effective timezone used will be the current value of os.environ['TZ']; note that this is usually set from Django's TIME_ZONE.

delete(name)¶

Deletes the file referenced by name. If deletion is not supported on the target storage system this will raise NotImplementedError instead.

exists(name)¶

Mengembalikan True jika sebuah berkas diacukan oleh nama yang sudah diberikan dalam sistem penyimpanan, atau False jika nama tersedia untuk sebuah berkas baru.

get_accessed_time(name)¶

Mengembalikan sebuah datetime dari waktu akses terakhir dari berkas. Untuk sistem penyimpanan tidak dapat mengembalikan ke waktu akses terakhir ini akan memunculkan NotImplementedError.

Jika USE_TZ adalah True, mengembalikan sebuah kewaspadaan datetime, sebaliknya mengembalikan datetime tidak dibuat-buat dalam zona waktu lokal.

get_alternative_name(file_root, file_ext)¶

Returns an alternative filename based on the file_root and file_ext parameters, an underscore plus a random 7 character alphanumeric string is appended to the filename before the extension.

get_available_name(name, max_length=None)¶

Mengembalikan sebuah nama berkas berdasarkan pada parameter name yang bebas dan tersedia untuk isi baru untuk ditulis pada sasaran sistem penyimpanan.

The length of the filename will not exceed max_length, if provided. If a free unique filename cannot be found, a SuspiciousFileOperation exception will be raised.

If a file with name already exists, get_alternative_name() is called to obtain an alternative name.

get_created_time(name)¶

Returns a datetime of the creation time of the file. For storage systems unable to return the creation time this will raise NotImplementedError.

Jika USE_TZ adalah True, mengembalikan sebuah kewaspadaan datetime, sebaliknya mengembalikan datetime tidak dibuat-buat dalam zona waktu lokal.

get_modified_time(name)¶

Returns a datetime of the last modified time of the file. For storage systems unable to return the last modified time this will raise NotImplementedError.

Jika USE_TZ adalah True, mengembalikan sebuah kewaspadaan datetime, sebaliknya mengembalikan datetime tidak dibuat-buat dalam zona waktu lokal.

get_valid_name(name)¶

Returns a filename based on the name parameter that's suitable for use on the target storage system.

generate_filename(filename)¶

Mensahkan filename dengan memanggil get_valid_name() dan mengembalikan sebuah nama berkas dilewatkan ke metedo save().

The filename argument may include a path as returned by FileField.upload_to. In that case, the path won't be passed to get_valid_name() but will be prepended back to the resulting name.

Penerapan awal menggunakan operasi os.path. Kesampingkan cara ini jika itu tidak sesuai untuk penyimpanan anda.

listdir(path)¶

Lists the contents of the specified path, returning a 2-tuple of lists; the first item being directories, the second item being files. For storage systems that aren't able to provide such a listing, this will raise a NotImplementedError instead.

open(name, mode='rb')¶

Opens the file given by name. Note that although the returned file is guaranteed to be a File object, it might actually be some subclass. In the case of remote file storage this means that reading/writing could be quite slow, so be warned.

path(name)¶

The local filesystem path where the file can be opened using Python's standard open(). For storage systems that aren't accessible from the local filesystem, this will raise NotImplementedError instead.

save(name, content, max_length=None)¶

Saves a new file using the storage system, preferably with the name specified. If there already exists a file with this name name, the storage system may modify the filename as necessary to get a unique name. The actual name of the stored file will be returned.

Argumen max_length dilewatkan bersama pada get_available_name().

The content argument must be an instance of django.core.files.File or a file-like object that can be wrapped in File.

size(name)¶

Returns the total size, in bytes, of the file referenced by name. For storage systems that aren't able to return the file size this will raise NotImplementedError instead.

url(name)¶

Returns the URL where the contents of the file referenced by name can be accessed. For storage systems that don't support access by URL this will raise NotImplementedError instead.