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# Redmine - project management software
# Copyright (C) 2006-2017 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
class Board < ActiveRecord::Base
include Redmine::SafeAttributes
belongs_to :project
has_many :messages, lambda {order("#{Message.table_name}.created_on DESC")}, :dependent => :destroy
belongs_to :last_message, :class_name => 'Message'
acts_as_tree :dependent => :nullify
acts_as_positioned :scope => [:project_id, :parent_id]
acts_as_watchable
validates_presence_of :name, :description
validates_length_of :name, :maximum => 30
validates_length_of :description, :maximum => 255
validate :validate_board
scope :visible, lambda {|*args|
joins(:project).
where(Project.allowed_to_condition(args.shift || User.current, :view_messages, *args))
}
safe_attributes 'name', 'description', 'parent_id', 'position'
def visible?(user=User.current)
!user.nil? && user.allowed_to?(:view_messages, project)
end
def reload(*args)
@valid_parents = nil
super
end
def to_s
name
end
# Returns a scope for the board topics (messages without parent)
def topics
messages.where(:parent_id => nil)
end
def valid_parents
@valid_parents ||= project.boards - self_and_descendants
end
def reset_counters!
self.class.reset_counters!(id)
end
# Updates topics_count, messages_count and last_message_id attributes for +board_id+
def self.reset_counters!(board_id)
board_id = board_id.to_i
Board.where(:id => board_id).
update_all(["topics_count = (SELECT COUNT(*) FROM #{Message.table_name} WHERE board_id=:id AND parent_id IS NULL)," +
" messages_count = (SELECT COUNT(*) FROM #{Message.table_name} WHERE board_id=:id)," +
" last_message_id = (SELECT MAX(id) FROM #{Message.table_name} WHERE board_id=:id)", :id => board_id])
end
def self.board_tree(boards, parent_id=nil, level=0)
tree = []
boards.select {|board| board.parent_id == parent_id}.sort_by(&:position).each do |board|
tree << [board, level]
tree += board_tree(boards, board.id, level+1)
end
if block_given?
tree.each do |board, level|
yield board, level
end
end
tree
end
protected
def validate_board
if parent_id && parent_id_changed?
errors.add(:parent_id, :invalid) unless valid_parents.include?(parent)
end
end
end
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