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Allow custom undo managers in database plugins

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Add a _create_undo_manager method in DbGeneric which can be
overridden to supply a custom undo manager rather than the
default DbGenericUndo.
This commit is contained in:
Nick Hall 2023-07-29 22:31:03 +01:00
parent 626a96580a
commit 6d8b93ce84
2 changed files with 15 additions and 2 deletions
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10
gramps/gen/db/generic.py
View File

@ -626,11 +626,11 @@ class DbGeneric(DbWriteBase, DbReadBase, UpdateCallback, Callback):
self._set_save_path(directory) self._set_save_path(directory)
if self._directory: if self._directory and self._directory != ":memory:":
self.undolog = os.path.join(self._directory, DBUNDOFN) self.undolog = os.path.join(self._directory, DBUNDOFN)
else: else:
self.undolog = None self.undolog = None
self.undodb = DbGenericUndo(self, self.undolog) self.undodb = self._create_undo_manager()
self.undodb.open() self.undodb.open()
# Other items to load # Other items to load
@ -665,6 +665,12 @@ class DbGeneric(DbWriteBase, DbReadBase, UpdateCallback, Callback):
self.close() self.close()
raise DbUpgradeRequiredError(dbversion, self.VERSION[0]) raise DbUpgradeRequiredError(dbversion, self.VERSION[0])
def _create_undo_manager(self):
"""
Create the undo manager.
"""
return DbGenericUndo(self, self.undolog)
def _close(self): def _close(self):
""" """
Close database backend. Close database backend.

7
gramps/gen/db/undoredo.py
View File

@ -125,6 +125,13 @@ class DbUndo(metaclass=ABCMeta):
txn.set_description(msg) txn.set_description(msg)
txn.timestamp = time.time() txn.timestamp = time.time()
self.undoq.append(txn) self.undoq.append(txn)
self._after_commit(txn)
def _after_commit(self, transaction):
"""
Post-transaction commit processing.
"""
pass
def undo(self, update_history=True): def undo(self, update_history=True):
""" """