def test_alter_implicit_id_to_explicit(self):
"""
Should be able to convert an implicit "id" field to an explicit "id"
primary key field.
"""
with connection.schema_editor() as editor:
editor.create_model(Author)
new_field = IntegerField(primary_key=True)
new_field.set_attributes_from_name("id")
new_field.model = Author
with connection.schema_editor() as editor:
editor.alter_field(
Author,
Author._meta.get_field_by_name("id")[0],
new_field,
strict=True,
)
def test_alter_implicit_id_to_explicit(self):
"""
Should be able to convert an implicit "id" field to an explicit "id"
primary key field.
"""
with connection.schema_editor() as editor:
editor.create_model(Author)
new_field = IntegerField(primary_key=True)
new_field.set_attributes_from_name("id")
new_field.model = Author
with connection.schema_editor() as editor:
editor.alter_field(
Author,
Author._meta.get_field_by_name("id")[0],
new_field,
strict=True,
)
def test_alter_implicit_id_to_explicit(self):
"""
Should be able to convert an implicit "id" field to an explicit "id"
primary key field.
"""
with connection.schema_editor() as editor:
editor.create_model(Author)
new_field = IntegerField(primary_key=True)
new_field.set_attributes_from_name("id")
new_field.model = Author
with connection.schema_editor() as editor:
editor.alter_field(
Author,
Author._meta.get_field_by_name("id")[0],
new_field,
strict=True,
)
# This will fail if DROP DEFAULT is inadvertently executed on this
# field which drops the id sequence, at least on PostgreSQL.
Author.objects.create(name='Foo')
def test_alter_implicit_id_to_explicit(self):
"""
Should be able to convert an implicit "id" field to an explicit "id"
primary key field.
"""
with connection.schema_editor() as editor:
editor.create_model(Author)
new_field = IntegerField(primary_key=True)
new_field.set_attributes_from_name("id")
new_field.model = Author
with connection.schema_editor() as editor:
editor.alter_field(
Author,
Author._meta.get_field("id"),
new_field,
strict=True,
)
# This will fail if DROP DEFAULT is inadvertently executed on this
# field which drops the id sequence, at least on PostgreSQL.
Author.objects.create(name='Foo')
