Add FileField support #120
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@jieter Thanks for taking a look at my earlier PRs. I'm wondering what you think about the approach I've taken here; I proposed an alternative in #118 (comment) that I could implement on a separate branch if desired. |
Adding `get_localized_value` allows us mimic how a "native" FileField is instantiated: https://github.com/django/django/blob/629398e55fd260c2ac4c2a9fc8b0c7d8dbda9e56/django/db/models/fields/files.py#L166 `TranslationField.pre_save` is modified to mimic how `pre_save` calls work as well: https://github.com/django/django/blob/629398e55fd260c2ac4c2a9fc8b0c7d8dbda9e56/django/db/models/fields/files.py#L313 The virtual FileField instances are not considered concrete, so are not processed within the ORM: https://github.com/django/django/blob/629398e55fd260c2ac4c2a9fc8b0c7d8dbda9e56/django/db/models/sql/compiler.py#L1744
Use descriptor_class to mimic how FileField returns a FieldFile instance https://github.com/django/django/blob/629398e55fd260c2ac4c2a9fc8b0c7d8dbda9e56/django/db/models/fields/files.py#L321 https://github.com/django/django/blob/629398e55fd260c2ac4c2a9fc8b0c7d8dbda9e56/django/db/models/fields/files.py#L166
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Refs #118, #119
After implementing #119, I took a stab at
FileFieldsupport.I knew that
FileFieldonly stores a string in the database, but I didn't fully understand how theFieldFilewrapper was implemented for manipulating the field value.The approach I've taken here is to mimic how the Django ORM typically interacts with
FileFieldinstances.I've configured the tests to use the InMemoryStorage class to avoid needing to clean up temp files generated during tests.