Add group feature

group/models.py

@@ -1,33 +1,3 @@
 from django.db import models
-from django.contrib.auth.models import User
-from django.utils.translation import ugettext_lazy as _
 
-
-class Group(models.Model):
-    """A group is identified uniquely by group_id."""
-
-    group_id = models.CharField(max_length=36, primary_key=True, db_column='uuid')
-    name = models.CharField(max_length=20, editable=False, unique=True)
-    creator = models.ForeignKey(User, verbose_name=_("creator"), related_name="%(class)s_created")
-    admin = models.ForeignKey(User, verbose_name=_("admin"), related_name="%(class)s_admined")
-    ctime = models.DateTimeField('create time', editable=False)
-    description = models.TextField(_("description"))
-    users = models.ManyToManyField(User)
-
-    def __unicode__(self):
-        return self.name
-
-
-class JoinRequest(models.Model):
-    """A request for joining a group."""
-    group = models.ForeignKey(Group)
-    user = models.ForeignKey(User)
-    ctime = models.DateTimeField('create time', editable=False)
-
-
-class Invitation(models.Model):
-    """An invitation for joining a group."""
-
-    group = models.ForeignKey(Group)
-    user = models.ForeignKey(User)
-    ctime = models.DateTimeField('create time', editable=False)
+# Create your models here.