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Code Issues Releases Wiki Activity

Fix my slightly hasty autodetector changes

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This commit is contained in:
Andrew Godwin 2014-02-12 17:22:50 +00:00
parent 80bbe2265d
commit bad9456b9c
2 changed files with 7 additions and 6 deletions
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9
django/db/migrations/autodetector.py
View File

@ -31,7 +31,7 @@ class MigrationAutodetector(object):
to try and restrict to (restriction is not guaranteed)
"""
changes = self._detect_changes()
changes = self._arrange_for_graph(changes, graph)
changes = self.arrange_for_graph(changes, graph)
if trim_to_apps:
changes = self._trim_to_apps(changes, trim_to_apps)
return changes
@ -299,7 +299,7 @@ class MigrationAutodetector(object):
dependency = ("__setting__", setting_name)
self.migrations[app_label][-1].dependencies.append(dependency)
def _arrange_for_graph(self, changes, graph):
def arrange_for_graph(self, changes, graph):
"""
Takes in a result from changes() and a MigrationGraph,
and fixes the names and dependencies of the changes so they
@ -388,8 +388,9 @@ class MigrationAutodetector(object):
return "%s_%s" % (ops[0].model_name.lower(), ops[0].name.lower())
elif isinstance(ops[0], operations.RemoveField):
return "remove_%s_%s" % (ops[0].model_name.lower(), ops[0].name.lower())
elif all(isinstance(o, operations.CreateModel) for o in ops):
return "_".join(sorted(o.name.lower() for o in ops))
elif len(ops) > 1:
if all(isinstance(o, operations.CreateModel) for o in ops):
return "_".join(sorted(o.name.lower() for o in ops))
return "auto_%s" % datetime.datetime.now().strftime("%Y%m%d_%H%M")
@classmethod

4
tests/migrations/test_autodetector.py
View File

@ -54,7 +54,7 @@ class AutodetectorTests(TestCase):
autodetector = MigrationAutodetector(before, after)
changes = autodetector._detect_changes()
# Run through arrange_for_graph
changes = autodetector._arrange_for_graph(changes, graph)
changes = autodetector.arrange_for_graph(changes, graph)
# Make sure there's a new name, deps match, etc.
self.assertEqual(changes["testapp"][0].name, "0003_author")
self.assertEqual(changes["testapp"][0].dependencies, [("testapp", "0002_foobar")])
@ -70,7 +70,7 @@ class AutodetectorTests(TestCase):
changes = autodetector._detect_changes()
# Run through arrange_for_graph
graph = MigrationGraph()
changes = autodetector._arrange_for_graph(changes, graph)
changes = autodetector.arrange_for_graph(changes, graph)
changes["testapp"][0].dependencies.append(("otherapp", "0001_initial"))
changes = autodetector._trim_to_apps(changes, set(["testapp"]))
# Make sure there's the right set of migrations