5 Commits

Author	SHA1	Message	Date
Gerald Britton	cd8ded4b37	Updates to undo/redo logic: ... 1. Replace single transaction list with separate undo/redo deques 2. Update UndoHistory GUI to work with new queue setup 3. Add test to txn.py for empty transaction list svn: r15427	2010-05-20 18:32:08 +00:00
Gerald Britton	a4b22193c2	Use defaultdict instead of dict to simplify code and improve performance ... svn: r14060	2010-01-13 15:46:12 +00:00
Doug Blank	ab3dfe1415	3465: Create a new hierarchy of base classes for gramps cor databases (read, write) and add methods ... svn: r13894	2009-12-23 15:55:58 +00:00
Doug Blank	699dcb13fe	Fixed svn Id property ... svn: r13881	2009-12-21 13:43:50 +00:00
Gerald Britton	c8f7bf0c69	Add new modules to support restructured database objects ... bsddbtxn.py -- Wrapper for BSDDB DBTxn to support context manager protocol txn.py -- GrampsDbTxn class to manage atomic transactions write.py -- GrampsDbWrite class for read/write databases read.py -- GrampsDbRead class for read-only databases undoredo.py -- GrampsDbUndo class to manage the undo database upgrade.py -- Helper module for upgrading a database at open time svn: r13078	2009-08-19 17:05:39 +00:00