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# Redmine - project management software
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# Copyright (C) 2006-2009 Jean-Philippe Lang
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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class UserRole < ActiveRecord::Base
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belongs_to :owner, :polymorphic => true
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belongs_to :role
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has_many :cached_user_roles, :dependent => :destroy
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validates :role_id, :presence => true
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validates :owner_id, :presence => true, :uniqueness => {:scope => [:role_id, :owner_type],
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:message => N_("has this role already")}
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def user_role?
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self.owner_type == 'User'
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end
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def user_group_role?
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self.owner_type == 'Usergroup'
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end
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before_save :remove_cache!
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after_save :cache_user_roles!
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before_destroy :remove_cache!
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private
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def remove_cache!
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cached_user_roles.destroy_all
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end
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def cache_user_roles!
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if self.user_role?
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built = build_user_role_cache
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elsif self.user_group_role?
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built = build_user_group_role_cache(self.owner)
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else
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raise 'unknown UserRole owner type'
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end
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built.all?(&:save!)
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end
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def build_user_role_cache
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[ self.cached_user_roles.build(:user => owner, :role => role) ]
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end
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def build_user_group_role_cache(owner)
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cache = []
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cache += owner.users.map { |m| self.cached_user_roles.build(:user => m, :role => role) }
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cache += owner.usergroups.map { |g| build_user_group_role_cache(g) }
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cache.flatten
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end
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end
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