by Brian M. Hunt
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Published on 2010-03-31T15:34:16Z Indexed on 2010/04/04 11:53 UTC
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Given a Django model likeso:
from django.db import models class MyModel(models.Model): textfield = models.TextField()
How can one automatically compress
textfield (e.g. with
save() and decompress it when the property
textfield is accessed (i.e. not on load), with a workflow like this:
m = MyModel() textfield = "Hello, world, how are you?" m.save() # compress textfield on save m.textfield # no decompression id = m.id() m = MyModel.get(pk=id) # textfield still compressed m.textfield # textfield decompressed
I'd be inclined to think that you would overload
MyModel.save, but I don't know the pattern for in-place modification of the element when saving. I also don't know the best way in Django to decompress when the field when it's accessed (overload
Or would a better way to do this be to have a custom field type?
I'm certain I've seen an example of almost exactly this, but alas I've not been able to find it recently.
Thank you for reading – and for any input you may be able to provide.
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