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PODjango error with ForeignKey reference
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copied!<p>I have a question about a ForeignKey reference problem with django.</p> <p>This is a part of my code :</p> <p>App ticketsTrader</p> <pre><code>class TicketsTrader(models.Model): seller = models.ForeignKey(User, related_name='ticketsTrader_seller') buyer = models.ForeignKey(User, related_name='ticketsTrader_buyer') inscription = models.ForeignKey(Inscription) transactionCode = models.CharField(max_length=30,blank=False,null=False) ... </code></pre> <p>App inscription</p> <pre><code>class Event(models.Model): title = models.CharField(max_length=75) description = models.TextField() ... class Inscription(models.Model): event = models.ForeignKey(Event) packs = models.ManyToManyField(PackChoise) user = models.ForeignKey(User) ... def __unicode__(self): return self.event.__unicode__() + u': ' + self.user.__unicode__() def inscriptionKey(self): return str(self.pk) + '_' + str(self.valkey) </code></pre> <p>But when I try to acces to the "Add Ticket Trader" interface in my Grapelli admin, I get an error message :</p> <blockquote> <p>User matching query does not exist.</p> <p>Python27\lib\site-packages\django\db\models\query.py in get, line 366</p> <p>In template \grappelli\templates\admin\includes\fieldset.html, error at line 19</p> </blockquote> <p>What I want to get is : in the "inscription" column of my ticketTrader table get the value of the unique id (pk) of my "Inscription" table.</p> <p>Or the value of the "inscriptionKey" but I don't think it's possible.</p> <p>Django Version:1.4 / Python Version: 2.7.3 / South last version</p> <p>Thanks for your help :)</p>

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