Django AssertionError
<pre><code>    AssertionError at /api/purchases/person/

    It is redundant to specify `source='name'` on field 'Field' in
 serializer 'PurchaseSerializer', because it is the same as the field name. 
Remove the `source` keyword argument.
</code></pre>

<p>I assume it's referring to this code since I haven't use 'source' anywhere else:</p>

<pre><code>class PurchaseSerializer(serializers.HyperlinkedModelSerializer):
    name = serializers.Field(source='name')

    class Meta:
        model = Purchase
        fields = ['name']
</code></pre>

<p>I'm trying to be able to filter purchases by "person" so I could only see their purchases BUT for some reason when I type a person that exists in the database it comes up with an Assertion error like above. If I type a person that does NOT exist in the database it throws no errors but returns an empty JSON. This should be vice versa but not sure why this isn't working.</p>

<p>Models.py</p>

<pre><code>class Purchase(models.Model):
        name = models.CharField(max_length=255)
</code></pre>

<p>Urls.py</p>

<pre><code>url(r'^api/purchases/(?P&lt;username&gt;.+)/$', views.PurchaseList.as_view()),
</code></pre>

<p>Views.py</p>

<pre><code>class PurchaseList(generics.ListAPIView):
    serializer_class = PurchaseSerializer

    def get_queryset(self):
        """
        This view should return a list of all the purchases for
        the user as determined by the username portion of the URL.
        """
        username = self.kwargs['username']
        return Purchase.objects.filter(name=username)
</code></pre>