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# Copyright (C) 2007, 2008, 2009, 2010 Heiko Bernloehr (FreeIT.de).
#
# This file is part of ECS.
#
# ECS is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# ECS is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with ECS. If not, see <http://www.gnu.org/licenses/>.
class Community < ActiveRecord::Base
has_many :memberships, -> { order 'id ASC' }
has_many :participants, :through => :memberships
has_many :community_messages, :dependent => :destroy
has_many :messages, :through => :community_messages
validates_presence_of :name
validates_uniqueness_of :name
scope :for_participant, lambda { |participant|
joins(:memberships => :participant).
where(:participants => { :id => participant.id })}
scope :for_message, lambda { |message|
joins(:memberships => {:membership_messages => :message}).
where(:messages => { :id => message.id })}
end
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