107 lines
3.2 KiB
Ruby
107 lines
3.2 KiB
Ruby
#
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# Copyright (C) 2011 Instructure, Inc.
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#
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# This file is part of Canvas.
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#
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# Canvas is free software: you can redistribute it and/or modify it under
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# the terms of the GNU Affero General Public License as published by the Free
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# Software Foundation, version 3 of the License.
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#
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# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# == Schema Information
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#
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# Table name: wikis
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#
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# id :integer(4) not null, primary key
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# title :string(255)
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# created_at :datetime
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# updated_at :datetime
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#
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class Wiki < ActiveRecord::Base
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attr_accessible :title
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has_many :wiki_pages, :dependent => :destroy
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after_save :update_contexts
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def update_contexts
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self.context.try(:touch)
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end
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def to_atom
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Atom::Entry.new do |entry|
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entry.title = self.title
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entry.updated = self.updated_at
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entry.published = self.created_at
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entry.links << Atom::Link.new(:rel => 'alternate',
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:href => "/wikis/#{self.id}")
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end
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end
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def update_default_wiki_page_roles(new_roles, old_roles)
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return if new_roles == old_roles
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self.wiki_pages.each do |p|
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if p.editing_roles == old_roles
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p.editing_roles = new_roles
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p.save
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end
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end
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end
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def wiki_page
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# TODO i18n
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t :front_page_name, "Front Page"
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self.wiki_pages.find_by_url("front-page") || self.wiki_pages.build(:title => "Front Page", :url => 'front-page')
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end
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def context
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@context ||= Course.find_by_wiki_id(self.id) || Group.find_by_wiki_id(self.id)
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end
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def context_type
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context.class.to_s
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end
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def context_id
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context.id
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end
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set_policy do
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given {|user| self.context.is_public }
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can :read
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given {|user, session| self.cached_context_grants_right?(user, session, :read) }#students.include?(user) }
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can :read
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given {|user, session| self.cached_context_grants_right?(user, session, :participate_as_student) && self.context.allow_student_wiki_edits}
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can :contribute and can :read and can :update and can :delete and can :create and can :create_page and can :update_page
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given {|user, session| self.cached_context_grants_right?(user, session, :manage_wiki) }#admins.include?(user) }
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can :manage and can :read and can :update and can :create and can :delete and can :create_page and can :update_page
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end
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def self.wiki_for_context(context)
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return context.wiki_without_create if context.wiki_id
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context.transaction do
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# otherwise we lose dirty changes
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context.save! if context.changed?
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context.lock!
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return context.wiki_without_create if context.wiki_id
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# TODO i18n
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t :default_course_wiki_name, "%{course_name} Wiki", :course_name => nil
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t :default_group_wiki_name, "%{group_name} Wiki", :group_name => nil
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context.wiki = wiki = Wiki.create!(:title => "#{context.name} Wiki")
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context.save!
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wiki
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end
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end
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end
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