Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use _is_relation_to method in autotest

Best Python code snippet using autotest_python

model_logic.py

Source:model_logic.py

...178        sql_query = 'SELECT ' + distinct + ','.join(selects) + where179        cursor = readonly_connection.connection().cursor()180        cursor.execute(sql_query, params)181        return cursor.fetchall()182    def _is_relation_to(self, field, model_class):183        return field.rel and field.rel.to is model_class184    def _get_pivot_iterator(self, base_objects_by_id, related_model):185        """186        Determine the relationship between this model and related_model, and187        return a pivot iterator.188        @param base_objects_by_id: dict of instances of this model indexed by189        their IDs190        @returns a pivot iterator, which yields a tuple (base_object,191        related_object) for each relationship between a base object and a192        related object.  all base_object instances come from base_objects_by_id.193        Note -- this depends on Django model internals and will likely need to194        be updated when we move to Django 1.x.195        """196        # look for a field on related_model relating to this model197        for field in related_model._meta.fields:198            if self._is_relation_to(field, self.model):199                # many-to-one200                return self._many_to_one_pivot(base_objects_by_id,201                                               related_model, field)202        for field in related_model._meta.many_to_many:203            if self._is_relation_to(field, self.model):204                # many-to-many205                return self._many_to_many_pivot(206                    base_objects_by_id, related_model, field.m2m_db_table(),207                    field.m2m_reverse_name(), field.m2m_column_name())208        # maybe this model has the many-to-many field209        for field in self.model._meta.many_to_many:210            if self._is_relation_to(field, related_model):211                return self._many_to_many_pivot(212                    base_objects_by_id, related_model, field.m2m_db_table(),213                    field.m2m_column_name(), field.m2m_reverse_name())214        raise ValueError('%s has no relation to %s' %215                         (related_model, self.model))216    def _many_to_one_pivot(self, base_objects_by_id, related_model,217                           foreign_key_field):218        """219        @returns a pivot iterator - see _get_pivot_iterator()220        """221        filter_data = {foreign_key_field.name + '__pk__in':222                       base_objects_by_id.keys()}223        for related_object in related_model.objects.filter(**filter_data):224            fresh_base_object = getattr(related_object, foreign_key_field.name)...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.