Django - Error models with control data

Question

I'm working on writing the models.py file, and I need some controls to perform the automatic compilation of some fields.

MOTIVOINGRESSO = (
         (u'sequestro ', u'sequestro'),
         (u'fermo ', u'fermo'),
         (u'confisca final ', u'confisca final'),
         (u'cambio custodian ', u'cambio custodian'),
     )
     motivo_ingresso = models.CharField (max_length = 50, choices = MOTIVOINGRESSO)


FERMO = (
         (u'30 ', u'30'),
         (u'60 ', u'60'),
         (u'90 ', u'90'),
         (u'180 ', u'180'),
         (u'1 month ', u'1 month'),
         (u'3 months, 'u'3 months'),
         (u'indeterminato ', u'indeterminato'),
     )
     durata_in_giorni_del_fermo = models.CharField (max_length = 20, choices = STOPPED, blank = True)

If the administrator the choice click 'sequestro', in durata_in_giorni_del_fermo will automatically selected 'indeterminato'. Should I report the values ​​entered? or machine cycles if within the models?

Any Ideas?

Answer 1

Its very easy if you will do it through Jquery in template. I don't know, this can be possible in models.py. Below links are much relevant to your question.

1. How to implement two dropdowns dependent on each other using Django and jQuery
2. Dynamic select fields with JQuery and django

Hoping you will got the idea about ajax and Jquery after following above links :)