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"""
42. Storing files according to a custom storage system
``FileField`` and its variations can take a ``storage`` argument to specify how
and where files should be stored.
"""
import os
import random
import tempfile
from django.db import models
from django.core.files.storage import FileSystemStorage
temp_storage_location = tempfile.mkdtemp(dir=os.environ['DJANGO_TEST_TEMP_DIR'])
temp_storage = FileSystemStorage(location=temp_storage_location)
class Storage(models.Model):
def custom_upload_to(self, filename):
return 'foo'
def random_upload_to(self, filename):
# This returns a different result each time,
# to make sure it only gets called once.
return '%s/%s' % (random.randint(100, 999), filename)
normal = models.FileField(storage=temp_storage, upload_to='tests')
custom = models.FileField(storage=temp_storage, upload_to=custom_upload_to)
random = models.FileField(storage=temp_storage, upload_to=random_upload_to)
default = models.FileField(storage=temp_storage, upload_to='tests', default='tests/default.txt')
empty = models.FileField(storage=temp_storage)
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