Error: Macro BackLinksMenu(None) failed

compressed data is corrupt

Error: Macro TicketQuery(summary=PRO_CHANGE_COMMONS_R0, format=table, col=summary|owner|status|type|component|priority|effort|importance, rows=description|analysis_owners|analysis_reviewers|analysis_score|design_owners|design_reviewers|design_score|implementation_owners|implementation_reviewers|implementation_score|test_owners|test_reviewers|test_score|) failed

current transaction is aborted, commands ignored until end of transaction block

Analysis

Overview

This task is related to the UndoManager. The change manager is like the undo-manager, but allows skipping, unskipping etc. Currently we have an UndoManger which will later become a change manager with the additional features described bellow.

skip change, unskip change, undo change,

Task requirements

• review code in UndoManager that represents the current undo manager.
• besides undo change and redo change the ChangeManager should also be capable of doing the following:
  • skip a change - the change will be skipped and the next in turn will be available if such exists. Unmanaged changes should all be skipped by default (see PRO_CHANGE_PRIMITIVES_R0). Other changes may be skipped depending on certain situations.
  • unskip a change - will provide the opportunity to revert the skipping of a change. This should be possible only if a skip of the change had been done.
  • undo/redo - the undo/redo mechanism should behave in a generally accepted manner as in most applications nowadays.
  • Important:
    • skip/unskip and undo/redo are all going to be defined as changes.
    • undo/redo should be possible to be skipped and unskipped.
    • skip/unskip should be possible to be undone and redone.
  • Provide unit tests for at least 5 scenarios.

Task result

• review of current source code.
• more source code.
• unit tests

Implementation idea

• review current code.
• add the new features.
• write unit tests. Example scenarios - every number represents a change and its position in the list:

     skip:
     1. a = 5 | 5
     2. a = 6 | 6
     3. a = 7 | 7
     4. skip 2 | 7 because a new change has occurred after 2.
  
     skip/undo:
     1. b = 10 | 10
     2. b = 5 | 5
     3. skip 2 | 10 is the last change that is to be undone.
     4. undo | 5 because the skip is undone.
     5. skip 4 | 10 because the last undo is skipped as a change.
    
     more complicated:
     1. c = 5 | 5
     2. c = 7 | 7
     3. c = 10 | 10
     4. c = 12 | 12
     5. undo | 10 this is the current value of c
     6. skip 3 | 7 
     
  

Related

PRO_CHANGE_PRIMITIVES_R0
PRO_CHANGE_TRANSACTION_SAFETY_R0
PRO_CHANGE_COMPOSING_R0
PRO_CHANGE_MANAGER_R0

How to demo

Design

Implementation

Testing

Comments