id	summary	reporter	owner	description	type	status	priority	milestone	component	resolution	keywords	cc	repo	theme
989	Extending the model from plugins	pudo	kindly	"We need to support extending the model from plugins. This could involve: 
 
 * Adding a plugin hook to extend the mapper
 * Adding an upgrade hook for plugin schema migrations
 * Documenting how this is to be done
 * Find a way to avoid conflicts "	enhancement	new	major	ckan-future	ckan				ckan	none