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Code Issues 32 Releases Wiki Activity

Fixed #29721 -- Ensured migrations are applied and recorded atomically.

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This commit is contained in:
Sanyam Khurana
2018-10-24 23:32:33 +05:30
committed by Tim Graham
parent 32da3cfdf9
commit c86a3d80a2
2 changed files with 32 additions and 5 deletions
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15
django/db/migrations/executor.py
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@@ -230,6 +230,7 @@ class MigrationExecutor:
def apply_migration(self, state, migration, fake=False, fake_initial=False):
"""Run a migration forwards."""
migration_recorded = False
if self.progress_callback:
self.progress_callback("apply_start", migration, fake)
if not fake:
@@ -242,16 +243,22 @@ class MigrationExecutor:
# Alright, do it normally
with self.connection.schema_editor(atomic=migration.atomic) as schema_editor:
state = migration.apply(state, schema_editor)
self.record_migration(migration)
migration_recorded = True
if not migration_recorded:
self.record_migration(migration)
# Report progress
if self.progress_callback:
self.progress_callback("apply_success", migration, fake)
return state
def record_migration(self, migration):
# For replacement migrations, record individual statuses
if migration.replaces:
for app_label, name in migration.replaces:
self.recorder.record_applied(app_label, name)
else:
self.recorder.record_applied(migration.app_label, migration.name)
# Report progress
if self.progress_callback:
self.progress_callback("apply_success", migration, fake)
return state
def unapply_migration(self, state, migration, fake=False):
"""Run a migration backwards."""