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You probably need to retrieve all the documents of a wells
from time to time. Or you may need to move a document from GTO
to EWR
. To be efficient with that, I wouldn’t use 3 tables but 1.
You can use choices :
TYPE_CHOICES = (
(1, 'GTO'),
(2, 'EWR'),
(3, 'QPR'),
)
class Document(models.Model):
# ...your other fields here...
type = models.IntegerField(choices=TYPE_CHOICES)
Source:stackexchange.com