id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
21638	[RFC][Patch] Extend opendata plugin to support CKAN open data platforms	Woazboat	Don-vip	"Extend the opendata plugin to be able to fetch resources from CKAN open data platforms. 

http://docs.ckan.org/en/2.9/user-guide.html#what-is-ckan

- New 'jackan' CKAN client plugin (https://github.com/opendatatrentino/jackan)
- New CKAN data set handler that fetches resources via CKAN API
- Refactor opendata menu entry creation to allow modules to provide special menu item handling

Also adds a module for https://www.data.gv.at/ (WIP)
- Some sample CKAN data set handlers included for testing


TODO:
- Registered CKAN data set handlers currently send CKAN API requests on startup to fetch information about data set -> problematic, especially when number of handlers/queries increases
- Allow users to search and select datasets available on the open data platform via a user interface
- Eventually support https://data.europa.eu/en if possible (https://data.europa.eu/api/hub/search/#tag/Ckan)"	enhancement	new	normal		Plugin opendata			ckan, opendata, module