title: How to filter model results for multiple values for a many to many field in django
body: <p>I have the following Model:</p>
  
  <pre><code>class Group(models.Model):
      member = models.ManyToManyField(Player, through='GroupMember')
      name = models.CharField(max_length=20, unique=True)
      join_password = models.CharField(max_length=20)
      date_created = datetime.datetime.now()
  
      def __unicode__(self):
          return str(self.name)
  
  class GroupMember(models.Model):
      member = models.ForeignKey(Player)
      group = models.ForeignKey(Group)
      rating = models.IntegerField(default=1500)
      played = models.IntegerField(default=0)
      wins = models.IntegerField(default=0)
      losses = models.IntegerField(default=0)
      experience = models.IntegerField(default=0)
      admin = models.BooleanField(default=0)
  </code></pre>
  
  <p>As you can see the group is made up of members who are players. What I would like to do is given two players I would like to be able to filter the groups that contain both of these players but I am unsure how to do this type of query.</p>