fix SQLCompiler.collection_name crash on QuerySet.update() with MTI

Regression in e971120.

Author: WaVEV

django_mongodb/compiler.py

@@ -673,6 +673,10 @@ def insert(self, docs, returning_fields=None):
  inserted_ids = self.collection.insert_many(docs).inserted_ids
  return inserted_ids if returning_fields else []
 
+ @cached_property
+ def collection_name(self):
+ return self.query.get_meta().db_table
+
 
 class SQLDeleteCompiler(compiler.SQLDeleteCompiler, SQLCompiler):
  def execute_sql(self, result_type=MULTI):
@@ -690,6 +694,10 @@ def check_query(self):
  def get_where(self):
  return self.query.where
 
+ @cached_property
+ def collection_name(self):
+ return self.query.base_table
+
 
 class SQLUpdateCompiler(compiler.SQLUpdateCompiler, SQLCompiler):
  def execute_sql(self, result_type):
@@ -754,6 +762,10 @@ def check_query(self):
  def get_where(self):
  return self.query.where
 
+ @cached_property
+ def collection_name(self):
+ return self.query.base_table
+
 
 class SQLAggregateCompiler(SQLCompiler):
  def build_query(self, columns=None):

django_mongodb/features.py

@@ -105,9 +105,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
  # https://github.com/mongodb-labs/django-mongodb/issues/161
  "queries.tests.RelatedLookupTypeTests.test_values_queryset_lookup",
  "queries.tests.ValuesSubqueryTests.test_values_in_subquery",
- # SQLCompiler.collection_name raises StopIteration
- "model_inheritance_regress.tests.ModelInheritanceTest.test_mti_update_grand_parent_through_child",
- "model_inheritance_regress.tests.ModelInheritanceTest.test_mti_update_parent_through_child",
  }
  # $bitAnd, #bitOr, and $bitXor are new in MongoDB 6.3.
  _django_test_expected_failures_bitwise = {