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class DjangoModelEndpointSetMixin(object): | ||
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def get_pk(self): | ||
""" | ||
Convenience method returning URL PK kwarg. | ||
""" | ||
pk_url_kwarg = self.url.lookup["field"] | ||
return self.kwargs[pk_url_kwarg] if pk_url_kwarg in self.kwargs else None | ||
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def get_resource_object_model(self): | ||
""" | ||
Convenience method returning Resource's object model, if any. | ||
""" | ||
if hasattr(self, "resource_class"): | ||
return self.resource_class.model if hasattr(self.resource_class, "model") else None | ||
else: | ||
return None | ||
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def get_queryset(self): | ||
""" | ||
Convenience method returning all Resource's object model objects. | ||
""" | ||
return self.get_resource_object_model()._default_manager.all() | ||
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def prepare(self): | ||
""" | ||
Sets `self.pk` to the requested PK | ||
Sets `self.obj` to a retrieved Resource object. | ||
Assumes Resource object is based on Django model. | ||
No action is taken if requested method does not operate on single objects. | ||
""" | ||
if self.get_resource_object_model(): | ||
if self.requested_method in ["retrieve", "update", "destroy"]: | ||
self.pk = self.get_pk() | ||
self.obj = self.get_object_or_404(self.get_queryset(), pk=self.pk) |
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