('subscription_deadline',models.DateField(verbose_name='subscription deadline',default=django.utils.timezone.now,help_text='Before this date, users are allowed to subscribe to this Matmatronch. After this date, users subscribed will be allowed to comment on each other.')),
('subscription_deadline',models.DateField(verbose_name='subscription deadline',default=django.utils.timezone.now,help_text='Before this date, users are allowed to subscribe to this Trombi. After this date, users subscribed will be allowed to comment on each other.')),
('comments_deadline',models.DateField(verbose_name='comments deadline',default=django.utils.timezone.now,help_text="After this date, users won't be able to make comments anymore")),