heroku - Model field not displaying in Django Admin -

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i have django project hosted on heroku

i added new slug field model

from django.db import models  class category(models.model):     name = models.charfield(max_length=30)     slug = models.slugfield(unique=true)      def __unicode__(self):         return self.name

migrated using south on heroku. checked heroku postgresdb added field. fine.

opened admin. no slug field showing...

added slug fields[] in admin.py. still not showing. here admin.py

from django.contrib import admin models import category  class categoryadmin(admin.modeladmin):     fields    = ('name', 'slug')  admin.site.register(category, categoryadmin).

i did heroku restart... no change. can done show ?


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