Changing validation after changing the model

[BlogueroConnor]

Hello,

I have model and a DB with data. I have to change one field size (lets say, from 255 to 4000). The column is called "papers".

I made a South migration, by creating by hand a migration script, and it worked, since the size for this column was changed in the DB.

Now I have the column with the size I want, but, in the admin page, I still see the field size set to 255 because that is the size of the inputtext in the form for this field.

So I overrided the field to make more room for the new data size, by using:

formfield_for_dbfield(self, db_field, **kwargs):

....

        if db_field.name in ('papers',):

            return db_field.formfield(widget=forms.Textarea(

                attrs={'cols': 80, 'rows': 10},

            ))    

So now I have a bigger form.

But when I put more than 255 chars in it, I get a JS validation error telling me that "Ensure this value has at most 255 characters (it has 2332)."

So the question is how can I change the data size for the JS to take into account the new size?

Best,

SB