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Fixed #29180 -- Fixed a regression where migrations already in the plan were readded. 

Regression in a38ae914d8.
This commit is contained in:
Carlton Gibson 2018-03-09 08:57:47 +01:00
parent 4d420a53cf
commit 5b083a824e
2 changed files with 17 additions and 1 deletions
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2
django/db/migrations/graph.py
View File

@ -356,7 +356,7 @@ class MigrationGraph:
plan = []
for node in nodes:
for migration in self.forwards_plan(node):
if migration in plan or at_end or migration not in nodes:
if migration not in plan and (at_end or migration not in nodes):
plan.append(migration)
return plan

16
tests/migrations/test_loader.py
View File

@ -81,6 +81,22 @@ class LoaderTests(TestCase):
# Ensure we've included unmigrated apps in there too
self.assertIn("basic", project_state.real_apps)
@override_settings(MIGRATION_MODULES={
'migrations': 'migrations.test_migrations',
'migrations2': 'migrations2.test_migrations_2',
})
@modify_settings(INSTALLED_APPS={'append': 'migrations2'})
def test_plan_handles_repeated_migrations(self):
"""
_generate_plan() doesn't readd migrations already in the plan (#29180).
"""
migration_loader = MigrationLoader(connection)
nodes = [('migrations', '0002_second'), ('migrations2', '0001_initial')]
self.assertEqual(
migration_loader.graph._generate_plan(nodes, at_end=True),
[('migrations', '0001_initial'), ('migrations', '0002_second'), ('migrations2', '0001_initial')]
)
@override_settings(MIGRATION_MODULES={"migrations": "migrations.test_migrations_unmigdep"})
def test_load_unmigrated_dependency(self):
"""