User
	FavouriteForumTopics

Poll
	id
	createdAt
	createdBy
	updatedAt
	updatedBy
	updateReason
	endTime (timestamp/date?)
	answers (ArrayCollection of PollAnswers)
	text
	anyoneCanAddAnswers
	multiselect
	voters (is it really required?)
PollAnswer
	id
	createdAt
	createdBy
	updatedAt
	updatedBy
	updateReason
	voters
	poll (back-reference to Poll)
	text

Article check if public

UserForumViewed
	it should contain records that show the last viewed post in each forum topic

BlogPost
	id
	title
	slug
	timestamp
	lead (?)
	text
	poster
	public

ForumTopicGroup
	visible
	locked

ForumTopic
	roles who can access it
	visible
	locked

ForumPost
	last edited by
	last edited timestamp
	last edit reason
	edit count

Library
	id
	owner
	author
	title
	year
	borrowable
	borrowed by
	borrower returned
	commentable

Event
	last edited by
	last edited timestamp
	last edit reason
	location
	commentable

PrivateChatMessage
	id
	from user
	to user
	timestamp

GroupChatMessage
	id
	from user
	to group
	timestamp