groupy branch migration

1. create a group -> group_id
2. delete new group's forum and assign old main forum to new group:

Forum.find_by_group_id(group_id).delete
g = Group.find(group_id)
f = Forum.first(:conditions => ['group_id IS ?',nil])
f.group = g
f.save

3. change all members' default accounts to belong to the new group:

accounts = Account.all(:conditions => ['group_id IS ?',nil])
accounts.each {|a| a.group = g;a.save}

4. add everyone to the new group:

Person.all {|p| Membership.request(p,g,false) unless g.owner?(p)}

5. in Req, Offer, Exchange models, temporarily comment out attr_readonly line for group_id

6. assign objects belonging to nil group to the new group:

reqs = Req.all(:conditions => ['group_id IS ?',nil])
reqs.each {|r| r.group=g;r.save}

offers = Offer.all(:conditions => ['group_id IS ?',nil])
offers.each {|o| o.group=g;o.save}

bids = Bid.all(:conditions => ['group_id IS ?',nil])
bids.each {|b| b.group=g;b.save}

exchanges = Exchange.all(:conditions => ['group_id IS ?',nil])
exchanges.each {|e| e.group=g;e.save}

7. uncomment attr_readonly lines previously commented out in Req, Offer, Exchange models

8. update code with groupy branch and rake db:migrate

9. assign everyone's default group to the new group:

Person.all.each {|p| p.default_group = g;p.save}

10. assign each group owner the role of admin for that group:

Group.all.each do |g|
  m = Membership.mem(g.owner,g)
  unless m.nil? # owner may have left group
    unless m.is?(:admin)
      puts "Making #{g.owner.name}(#{g.owner.id}) admin of #{g.id}:#{g.name}"
      m.add_role('admin')
      m.save
    else
      puts "#{g.owner.name}(#{g.owner.id}) is already admin of #{g.id}:#{g.name}"
    end
  else
    unless g.owner.nil? # owner may be deleted
      puts "*** WARNING #{g.owner.name} left #{g.id}:#{g.name}."
    else
      puts "*** WARNING owner of #{g.id}:#{g.name} deleted."
    end
    puts "*** Please assign a new owner and make admin" 
  end
end

11. create a MemberPreference object for each Membership:

Membership.all.each {|m| MemberPreference.create!(:membership => m)}

12. set the default group for new registrations:

p = Preference.first
p.default_group_id = group_id
p.save

13. log out and log in and you should be taken to the new default group!