Redmine/app/models/tracker.rb

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# Redmine - project management software
# Copyright (C) 2006-2012 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 Tracker < ActiveRecord::Base
CORE_FIELDS_UNDISABLABLE = %w(project_id tracker_id subject description priority_id is_private).freeze
# Fields that can be disabled
# Other (future) fields should be appended, not inserted!
CORE_FIELDS = %w(assigned_to_id category_id fixed_version_id parent_issue_id start_date due_date estimated_hours done_ratio).freeze
CORE_FIELDS_ALL = (CORE_FIELDS_UNDISABLABLE + CORE_FIELDS).freeze
before_destroy :check_integrity
has_many :issues
has_many :workflow_rules, :dependent => :delete_all do
def copy(source_tracker)
WorkflowRule.copy(source_tracker, nil, proxy_association.owner, nil)
end
end
has_and_belongs_to_many :projects
has_and_belongs_to_many :custom_fields, :class_name => 'IssueCustomField', :join_table => "#{table_name_prefix}custom_fields_trackers#{table_name_suffix}", :association_foreign_key => 'custom_field_id'
acts_as_list
attr_protected :field_bits
validates_presence_of :name
validates_uniqueness_of :name
validates_length_of :name, :maximum => 30
scope :sorted, order("#{table_name}.position ASC")
scope :named, lambda {|arg| where("LOWER(#{table_name}.name) = LOWER(?)", arg.to_s.strip)}
def to_s; name end
def <=>(tracker)
position <=> tracker.position
end
# Returns an array of IssueStatus that are used
# in the tracker's workflows
def issue_statuses
if @issue_statuses
return @issue_statuses
elsif new_record?
return []
end
ids = WorkflowTransition.
connection.select_rows("SELECT DISTINCT old_status_id, new_status_id FROM #{WorkflowTransition.table_name} WHERE tracker_id = #{id} AND type = 'WorkflowTransition'").
flatten.
uniq
@issue_statuses = IssueStatus.find_all_by_id(ids).sort
end
def disabled_core_fields
i = -1
@disabled_core_fields ||= CORE_FIELDS.select { i += 1; (fields_bits || 0) & (2 ** i) != 0}
end
def core_fields
CORE_FIELDS - disabled_core_fields
end
def core_fields=(fields)
raise ArgumentError.new("Tracker.core_fields takes an array") unless fields.is_a?(Array)
bits = 0
CORE_FIELDS.each_with_index do |field, i|
unless fields.include?(field)
bits |= 2 ** i
end
end
self.fields_bits = bits
@disabled_core_fields = nil
core_fields
end
# Returns the fields that are disabled for all the given trackers
def self.disabled_core_fields(trackers)
if trackers.present?
trackers.uniq.map(&:disabled_core_fields).reduce(:&)
else
[]
end
end
# Returns the fields that are enabled for one tracker at least
def self.core_fields(trackers)
if trackers.present?
trackers.uniq.map(&:core_fields).reduce(:|)
else
CORE_FIELDS.dup
end
end
private
def check_integrity
raise Exception.new("Can't delete tracker") if Issue.where(:tracker_id => self.id).any?
end
end