#29607: detailed documentation/cookbook on how to handle files and their
lifecycles
in models
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Reporter: Thomas Grainger | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 2.0
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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Currently the documentation on how to do various file operations isn't
documented eg:
* I've got some file contents as a string and a model instance with a file
field, I want to set the content of the instances' file to the value of
the string
* I've got a file like object and I'd like to transform it line by line
then append it to the file of a model field.
In all cases:
* properly managing the file lifetime open/close so that it works on non-
reference counting python implementations like PyPy
* cleaning up the FieldFile so that other code that accesses the file
still works
* never using up too much memory by reading a whole file into memory
Also, are some methods like: `instance.file.read()` without an associated
`with instance.file.open()` always dangerous - and should they be
deprecated?
Should the Django File instances operate more like `pathlib.PurePath` ? in
that `.read()` opens the file, reads the content then closes it, and
`.write()` opens the file, writes the file, then closes it.
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Ticket URL: <https://code.djangoproject.com/ticket/29607>
Django <https://code.djangoproject.com/>
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