I have an author who doesn't understand that a space is not nothing.
He persists in *sometimes* putting a leading space at the beginning of
a 'name' field. This name shows up in a ForeignKey drop down in the
admin interface. As a result, we often end up with two records. He
creates one named
" Foo" (note the leading space). When he goes to the dropdown he
doesn't see it because it is first in the sort order (not where he
would expect it to be) and so he creates another record with the name
"Foo" (i.e., without the space). He will then sometimes use the " Foo"
record and sometimes the "Foo" record and things get screwed up.
I would love to have a CharField option, strip=True, that strips
leading/trailing spaces. I don't want to edit core, and I don't want
to monkey patch. So that leaves me with either a) create a save() for
each model that has one of these fields, or b) have a Field type that
does it for me. I have a number of these, so I opted for the later.
E.g.,
class CharFieldStripped(models.CharField):
def get_db_prep_save(self, value):
if value is not None:
value = value.strip()
return super(models.CharField, self).get_db_prep_save(value)
So, is this the "best" way to do this? Is there a more general/correct
mechanism for adding options to Fields?
Enquiring minds want to know!
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