title: conflict between OneToMany and OneToOne relationship in Django
body: <p>I need to define a Meeting model which includes an organiser and a number of participants. All participants are derived from the standard User in auth module.</p>
  
  <pre><code>from django.db import models
  from django.contrib.auth.models import User
  
  class Meeting(models.Model):
      organizer=models.ForeignKey(User)
      participants=models.ManyToManyField(User)
  </code></pre>
  
  <p>However, when running syncdb, the I got the following error </p>
  
  <blockquote>
    <p>Error: One or more models did not validate: hub.meeting: Accessor for
    field 'organizer' clashes with related m2m field 'User.meeting_set'.
    Add a related_name argument to the definition for 'organizer'.
    hub.meeting: Accessor for m2m field 'participants' clashes with
    related field 'User.meeting_set'. Add a related_name argument to the
    definition for 'participants'.</p>
  </blockquote>
  
  <p>Can anyone help me to solve this?</p>