Python modelcluster.models.ClusterableModel() Examples

The following are 1 code examples of modelcluster.models.ClusterableModel(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module modelcluster.models , or try the search function .
Example #1
Source File: fields.py    From django-modelcluster with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
def check(self, **kwargs):
        from modelcluster.models import ClusterableModel

        errors = super(ParentalKey, self).check(**kwargs)

        # Check that the destination model is a subclass of ClusterableModel.
        # If self.rel.to is a string at this point, it means that Django has been unable
        # to resolve it as a model name; if so, skip this test so that Django's own
        # system checks can report the appropriate error
        if isinstance(self.remote_field.model, type) and not issubclass(self.remote_field.model, ClusterableModel):
            errors.append(
                checks.Error(
                    'ParentalKey must point to a subclass of ClusterableModel.',
                    hint='Change {model_name} into a ClusterableModel or use a ForeignKey instead.'.format(
                        model_name=self.remote_field.model._meta.app_label + '.' + self.remote_field.model.__name__,
                    ),
                    obj=self,
                    id='modelcluster.E001',
                )
            )

        # ParentalKeys must have an accessor name (#49)
        if self.remote_field.get_accessor_name() == '+':
            errors.append(
                checks.Error(
                    "related_name='+' is not allowed on ParentalKey fields",
                    hint="Either change it to a valid name or remove it",
                    obj=self,
                    id='modelcluster.E002',
                )
            )

        return errors