admin: merge topics and items #19
Description
In the admin lists of topics and items, add an option to the "Action:" menu for "Merge selected [object]s". It should return an error (or just do nothing) if only one object is selected.
When activated, the option should bring up a new page with some choices…
- Radio buttons to let the user choose which one of the objects' names will be kept. Perhaps an additional radio button with an input field to enter an alternate name, too.
- Check boxes to indicate which object notes (if any) should be kept.
The easiest method for merging is probably to create a completely new object, use the selected name, and add the selected object notes. Following that, if the object is a topic, change all items and object notes that referred to the old topics to refer to the new one instead.