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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2016-07-12 15:05:09 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2016-07-12 15:13:05 -0400 |
| commit | ca849060eb85dff7d7c9081c180c9a09cf365058 (patch) | |
| tree | 15b28dab8a818ac93cedd4854b96e848b26a32c4 /alembic/script/base.py | |
| parent | 111b1c13ae5a4330ebf0ed6d21c4a6f6bcd9f40e (diff) | |
| download | alembic-ca849060eb85dff7d7c9081c180c9a09cf365058.tar.gz | |
Don't remove dependent version when downgrading to a version.
Adjusted the version traversal on downgrade
such that we can downgrade to a version that is a dependency for
a version in a different branch, *without* needing to remove that
dependent version as well. Previously, the target version would be
seen as a "merge point" for it's normal up-revision as well as the
dependency. This integrates with the changes for :ticket:`377`
and :ticket:`378` to improve treatment of branches with dependencies
overall.
Change-Id: Ica0732f6419f68ab85650170839ac8000ba3bbfb
Fixes: #379
Diffstat (limited to 'alembic/script/base.py')
| -rw-r--r-- | alembic/script/base.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/alembic/script/base.py b/alembic/script/base.py index 98c5311..a9b6e7d 100644 --- a/alembic/script/base.py +++ b/alembic/script/base.py @@ -329,7 +329,7 @@ class ScriptDirectory(object): ancestor="Destination %(end)s is not a valid downgrade " "target from current head(s)", end=destination): revs = self.revision_map.iterate_revisions( - current_rev, destination) + current_rev, destination, select_for_downgrade=True) return [ migration.MigrationStep.downgrade_from_script( self.revision_map, script) |