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Method test_autofield_to_o2o

tests/schema/tests.py:1978–2002  ·  view source on GitHub ↗
(self)

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1976 self.assertEqual(counts, {"fks": expected_fks, "uniques": 1, "indexes": 0})
1977
1978 def test_autofield_to_o2o(self):
1979 with connection.schema_editor() as editor:
1980 editor.create_model(Author)
1981 editor.create_model(Note)
1982
1983 # Rename the field.
1984 old_field = Author._meta.get_field("id")
1985 new_field = AutoField(primary_key=True)
1986 new_field.set_attributes_from_name("note_ptr")
1987 new_field.model = Author
1988
1989 with connection.schema_editor() as editor:
1990 editor.alter_field(Author, old_field, new_field, strict=True)
1991 # Alter AutoField to OneToOneField.
1992 new_field_o2o = OneToOneField(Note, CASCADE)
1993 new_field_o2o.set_attributes_from_name("note_ptr")
1994 new_field_o2o.model = Author
1995
1996 with connection.schema_editor() as editor:
1997 editor.alter_field(Author, new_field, new_field_o2o, strict=True)
1998 columns = self.column_classes(Author)
1999 field_type, _ = columns["note_ptr_id"]
2000 self.assertEqual(
2001 field_type, connection.features.introspected_field_types["BigIntegerField"]
2002 )
2003
2004 def test_alter_field_fk_keeps_index(self):
2005 with connection.schema_editor() as editor:

Callers

nothing calls this directly

Calls 8

column_classesMethod · 0.95
AutoFieldClass · 0.90
OneToOneFieldClass · 0.90
schema_editorMethod · 0.80
create_modelMethod · 0.45
get_fieldMethod · 0.45
alter_fieldMethod · 0.45

Tested by

no test coverage detected