Obyek FileLink to this heading#

Kelas FileLink to this heading#

class File(file_object, name=None)Link to this definition#

The File class is a thin wrapper around a Python file object with some Django-specific additions. Internally, Django uses this class when it needs to represent a file.

Obyek File mempunyai atribut dan metode berikut:

nameLink to this definition#

Nama dari berkas termasuk jalur relatif dari MEDIA_ROOT.

sizeLink to this definition#

Ukuran berkas dalam byte.

fileLink to this definition#

The underlying file object that this class wraps.

modeLink to this definition#

Suasana baca/tulis untuk berkas.

open(mode=None, *args, **kwargs)Link to this definition#

Open or reopen the file (which also does File.seek(0)). The mode argument allows the same values as Python's built-in open(). *args and **kwargs are passed after mode to Python's built-in open().

When reopening a file, mode will override whatever mode the file was originally opened with; None means to reopen with the original mode.

Itu dapat digunakan sebagai pengelola konteks, misalnya with file.open() as f:.

__iter__()Link to this definition#

Iterate over the file yielding one line at a time.

chunks(chunk_size=None)Link to this definition#

Iterate over the file yielding "chunks" of a given size. chunk_size defaults to 64 KB.

This is especially useful with very large files since it allows them to be streamed off disk and avoids storing the whole file in memory.

multiple_chunks(chunk_size=None)Link to this definition#

Returns True if the file is large enough to require multiple chunks to access all of its content give some chunk_size.

close()Link to this definition#

Tutup berkas.

Sebagai tambahan pada metode-metode terlampir, File membuka atribut-atribut berikut dan metode dari file object: encoding, fileno, flush, isatty, newlines, read, readinto, readline, readlines, seek, tell, truncate, write, writelines, readable(), writable(), dan seekable() nya.

Kelas ContentFileLink to this heading#

class ContentFile(content, name=None)Link to this definition#

Kelas ContentFile mewarisi dari File, tapi tidak seperti File itu berjalan pada isi string (byte juga didukung), daripada sebuah berkas sebenarnya. Sebagai contoh:

Code

from django.core.files.base import ContentFile

f1 = ContentFile("esta frase está en español")
f2 = ContentFile(b"these are bytes")

Kelas ImageFileLink to this heading#

class ImageFile(file_object, name=None)Link to this definition#

Django menyediakan sebuah kelas siap-pakai khususnya untuk gambar. django.core.files.images.ImageFile mewarisi semua atribut dan metode dari File, dan tambahannya menyediakan berikut:

widthLink to this definition#

Lebar gambar dalam pixel.

heightLink to this definition#

Tinggi gambar dalam pixel.

Metode tambahan pada berkas-berkas dilampirkan pada obyekLink to this heading#

File apapun yang berkaitan dengan sebuah obyek (seperti Car.photo, dibawah) akan juga mempunyai sepasang metode-metode tambahan:

File.save(name, content, save=True)Link to this definition#

Saves a new file with the file name and contents provided. This will not replace the existing file, but will create a new file and update the object to point to it. If save is True, the model's save() method will be called once the file is saved. That is, these two lines:

Python console

>>> car.photo.save("myphoto.jpg", content, save=False)
>>> car.save()

are equivalent to:

Python console

>>> car.photo.save("myphoto.jpg", content, save=True)

Note that the content argument must be an instance of either File or of a subclass of File, such as ContentFile.

File.delete(save=True)Link to this definition#

Removes the file from the model instance and deletes the underlying file. If save is True, the model's save() method will be called once the file is deleted.