Rocket.Chat/server/startup/migrations/v19.coffee

Meteor.startup ->
	Migrations.add
		version: 19
		up: ->
			###
			# Migrate existing admin users to Role based admin functionality
			# 'admin' role applies to global scope
			###
			admins = Meteor.users.find({ admin: true }, { fields: { _id: 1, username:1 } }).fetch()
			RocketChat.authz.addUsersToRoles( _.pluck(admins, '_id'), ['admin'])
			Meteor.users.update({}, { $unset :{admin:''}}, {multi:true})
			usernames = _.pluck( admins, 'username').join(', ')
			console.log "Migrate #{usernames} from admin field to 'admin' role".green

			# Add 'user' role to all users
			users = Meteor.users.find().fetch()
			RocketChat.authz.addUsersToRoles( _.pluck(users, '_id'), ['user'])
			usernames = _.pluck( users, 'username').join(', ')
			console.log "Add #{usernames} to 'user' role".green

			# Add 'moderator' role to channel/group creators
			rooms = RocketChat.models.Rooms.findByTypes(['c','p']).fetch()
			_.each( rooms, (room) ->
				creator = room?.u?._id
				if creator
					RocketChat.authz.addUsersToRoles( creator, ['moderator'], room._id)
					console.log "Add #{room.u.username} to 'moderator' role".green
				)