old_contents: from django.utils.translation import ugettext_lazy as _
  from django.db import models
  from django.db.models import DateTimeField, BooleanField, OneToOneField
  
  
  from agenda.models import Calendar
  
  class Actor(models.Model):
      """
      An actor is an entity playing a role in your system. It can be anything that
      belongs to a user and interact during its workflow.
      """
      class meta:
          abstract = True
  
      registered_on = DateTimeField(auto_now_add=True,
                                    help_text=_('When it was was registered')
                                    )
      
      last_activity = DateTimeField(auto_now=True,
                                    help_text=_('The last time something happened')
                                    )
  
      owned = BooleanField(default=False,
                           help_text=_('Wether this actor is owned by at least one user')
                           )
  
      calendar = OneToOneField(Calendar, null=True, blank=True)
  
  def actor_after_save(sender, instance, created, **kwargs):
      """
      Called to ensure the calendar is created for a given actor
      """
      if created:
          print "eyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy"
          cal = Calendar(name='%s' % instance.name)
          cal.save()
          instance.calendar = cal
          instance.save()
  
  
  
  
  
  
  
  
  
  
      
  
new_contents: from django.utils.translation import ugettext_lazy as _
  from django.db import models
  from django.db.models import DateTimeField, BooleanField, OneToOneField
  
  
  from agenda.models import Calendar
  
  class Actor(models.Model):
      """
      An actor is an entity playing a role in your system. It can be anything that
      belongs to a user and interact during its workflow.
      """
      class meta:
          abstract = True
  
      registered_on = DateTimeField(auto_now_add=True,
                                    help_text=_('When it was was registered'),
                                    editable=False
                                    )
      
      last_activity = DateTimeField(auto_now=True,
                                    help_text=_('The last time something happened'),
                                    editable=False
                                    )
  
      owned = BooleanField(default=False,
                           help_text=_('Wether this actor is owned by at least one user')
                           )
  
      calendar = OneToOneField(Calendar, null=True, blank=True, editable=False)
  
  def actor_after_save(sender, instance, created, **kwargs):
      """
      Called to ensure the calendar is created for a given actor
      """
      if created:
          cal = Calendar(name='%s' % instance.name)
          cal.save()
          instance.calendar = cal
          instance.save()
  
  
  
  
  
  
  
  
  
  
      
  
subject: Make calendar not editbale for actors