This is pretty standard behavior in Django.
Have something like this in your models.py:
LOG_CODES = (
('Input', 1),
('Output', 2),
)
Then, the model field should have this in its definition:
choices = LOG_CODES
If you name that field name, say, _transaction_type, then you can
define a function in your model called transaction_type which returns the
proper text value for the numeric value.
To make things even easier, put an @property decorator right before
that function definition, and you can call modelname.transaction_type
instead of modelname.transaction_type(). That makes the syntax the
same as you would expect for a property of a model.
Shawn
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