Changes

'''Description'''

'''Description'''

Initially, navigation-main row would be initiated with widget-id say 0 and delete to be false  

Initially, navigation-main row will be initiated with widget-id say 0 and delete will be false  

When user drags an widget on canvas, new widget would be created and a new entry comes in navigation-main table. Similarly children-widgets are created and subsequent entries will be given in specific tables. For undo operation, navigation-row entry for "delete" can be set to false, similarly for redo operation, entry would be false again.

When user drags an widget on canvas, new widget will be created and a new entry comes in navigation-main table. Similarly children-widgets are created and subsequent entries will be given in specific tables. In this way, a whole tree-view of UI application would then be saved in database.

For undo operation, navigation-row entry for "delete" can be set to true, similarly for redo operation, entry would be false again.