Finish the command manager part of implementing function add, delete, update and display

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What steps will reproduce the problem?
1. implement function add
2. implement function delete
3. implement function display
4. implement function update

Original issue reported on code.google.com by nuss...@gmail.com on 4 Oct 2013 at 5:06

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Original comment by naomileo...@gmail.com on 4 Oct 2013 at 6:05

• Added labels: Component-Logic
• Removed labels: Type-Defect

[GoogleCodeExporter]

Original comment by naomileo...@gmail.com on 15 Oct 2013 at 4:42

• Changed state: Done