Fixed #13809 -- Made FieldFile.open() respect its mode argument.
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@ -79,7 +79,10 @@ class FieldFile(File):
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def open(self, mode='rb'):
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self._require_file()
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self.file.open(mode)
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if hasattr(self, '_file') and self._file is not None:
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self.file.open(mode)
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else:
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self.file = self.storage.open(self.name, mode)
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# open() doesn't alter the file's contents, but it does reset the pointer
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open.alters_data = True
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@ -742,6 +742,16 @@ class FileFieldStorageTests(TestCase):
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self.assertEqual(list(obj.normal.chunks(chunk_size=2)), [b"co", b"nt", b"en", b"t"])
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obj.normal.close()
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def test_filefield_write(self):
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# Files can be written to.
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obj = Storage.objects.create(normal=SimpleUploadedFile('rewritten.txt', b'content'))
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with obj.normal as normal:
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normal.open('wb')
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normal.write(b'updated')
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obj.refresh_from_db()
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self.assertEqual(obj.normal.read(), b'updated')
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obj.normal.close()
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def test_filefield_reopen(self):
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obj = Storage.objects.create(normal=SimpleUploadedFile('reopen.txt', b'content'))
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with obj.normal as normal:
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