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kovidgoyal · 09-09-2016, 06:53 PM

You can use calibredb while the GUI is running, but it is not a good idea and it's likely the ability will be removed in the future in favor of a direct IPC interface to the db the GUI is using. Adding/modifying custom columns requires a GUI restart, which is why calibre db does not notify the GUI on those actions, while adding/deleting/etc. works fine witha simple refresh in the GUI.

09-09-2016, 06:53 PM	#2
kovidgoyal creator of calibre Posts: 45,402 Karma: 27756918 Join Date: Oct 2006 Location: Mumbai, India Device: Various	You can use calibredb while the GUI is running, but it is not a good idea and it's likely the ability will be removed in the future in favor of a direct IPC interface to the db the GUI is using. Adding/modifying custom columns requires a GUI restart, which is why calibre db does not notify the GUI on those actions, while adding/deleting/etc. works fine witha simple refresh in the GUI.