1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
from .delete_partition import PostgresDeletePartition
class PostgresDeleteListPartition(PostgresDeletePartition):
"""Deletes a list partition that's part of a.
:see:PartitionedPostgresModel.
"""
def database_backwards(
self, app_label, schema_editor, from_state, to_state
):
model = to_state.apps.get_model(app_label, self.model_name)
model_state = to_state.models[(app_label, self.model_name_lower)]
if self.allow_migrate_model(schema_editor.connection.alias, model):
partition_state = model_state.partitions[self.name]
schema_editor.add_list_partition(
model, partition_state.name, partition_state.values
)
def describe(self) -> str:
return "Deletes list partition '%s' on %s" % (
self.name,
self.model_name,
)
|
