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PODjango Admin: Ordering of ForeignKey and ManyToManyField relations referencing User
 

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    <p>I have an application that makes use of Django's <code>UserProfile</code> to extend the built-in Django <code>User</code> model. Looks a bit like:</p> <pre><code>class UserProfile(models.Model): user = models.ForeignKey(User, unique=True) # Local Stuff image_url_s = models.CharField(max_length=128, blank=True) image_url_m = models.CharField(max_length=128, blank=True) # Admin class Admin: pass </code></pre> <p>I have added a new class to my model:</p> <pre><code>class Team(models.Model): name = models.CharField(max_length=128) manager = models.ForeignKey(User, related_name='manager') members = models.ManyToManyField(User, blank=True) </code></pre> <p>And it is registered into the Admin:</p> <pre><code>class TeamAdmin(admin.ModelAdmin): list_display = ('name', 'manager') admin.site.register(Team, TeamAdmin) </code></pre> <p>Alas, in the admin inteface, when I go to select a manager from the drop-down box, or set team members via the multi-select field, they are ordered by the User numeric ID. For the life of me, I can not figure out how to get these sorted.</p> <p>I have a similar class with:</p> <pre><code>class Meta: ordering = ['name'] </code></pre> <p>That works great! But I don't "own" the <code>User</code> class, and when I try this trick in <code>UserAdmin</code>:</p> <pre><code>class Meta: ordering = ['username'] </code></pre> <p>I get:</p> <p><code>django.core.management.base.CommandError: One or more models did not validate:</code> <code>events.userprofile: "ordering" refers to "username", a field that doesn't exist.</code></p> <p><code>user.username</code> doesn't work either. I could specify, like <code>image_url_s</code> if I wanted to . . . how can I tell the admin to sort my lists of users by <code>username</code>? Thanks!</p>
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