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63 lines
2.2 KiB
Python
63 lines
2.2 KiB
Python
"""
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Storing files according to a custom storage system
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``FileField`` and its variations can take a ``storage`` argument to specify how
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and where files should be stored.
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"""
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import random
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import tempfile
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from pathlib import Path
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from django.core.files.storage import FileSystemStorage
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from django.db import models
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class CustomValidNameStorage(FileSystemStorage):
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def get_valid_name(self, name):
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# mark the name to show that this was called
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return name + '_valid'
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temp_storage_location = tempfile.mkdtemp()
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temp_storage = FileSystemStorage(location=temp_storage_location)
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def callable_storage():
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return temp_storage
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class CallableStorage(FileSystemStorage):
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def __call__(self):
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# no-op implementation.
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return self
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class Storage(models.Model):
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def custom_upload_to(self, filename):
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return 'foo'
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def random_upload_to(self, filename):
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# This returns a different result each time,
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# to make sure it only gets called once.
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return '%s/%s' % (random.randint(100, 999), filename)
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def pathlib_upload_to(self, filename):
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return Path('bar') / filename
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normal = models.FileField(storage=temp_storage, upload_to='tests')
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custom = models.FileField(storage=temp_storage, upload_to=custom_upload_to)
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pathlib_callable = models.FileField(storage=temp_storage, upload_to=pathlib_upload_to)
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pathlib_direct = models.FileField(storage=temp_storage, upload_to=Path('bar'))
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random = models.FileField(storage=temp_storage, upload_to=random_upload_to)
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custom_valid_name = models.FileField(
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storage=CustomValidNameStorage(location=temp_storage_location),
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upload_to=random_upload_to,
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)
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storage_callable = models.FileField(storage=callable_storage, upload_to='storage_callable')
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storage_callable_class = models.FileField(storage=CallableStorage, upload_to='storage_callable_class')
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default = models.FileField(storage=temp_storage, upload_to='tests', default='tests/default.txt')
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empty = models.FileField(storage=temp_storage)
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limited_length = models.FileField(storage=temp_storage, upload_to='tests', max_length=20)
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extended_length = models.FileField(storage=temp_storage, upload_to='tests', max_length=300)
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