OpenProject is the leading open source project management software.
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openproject/app/controllers/work_packages/auto_completes_controller.rb

100 lines
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#-- encoding: UTF-8
#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2018 the OpenProject Foundation (OPF)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2017 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# 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.
#
# See docs/COPYRIGHT.rdoc for more details.
#++
require 'rack/utils'
class WorkPackages::AutoCompletesController < ::ApplicationController
def index
@work_packages = work_package_with_id | work_packages_by_subject_or_id
respond_to do |format|
format.json { render request.format.to_sym => wp_hashes_with_string(@work_packages) }
end
end
private
def work_package_with_id
query_term = params[:q].to_s
if query_term =~ /\A\d+\z/
work_package_scope.visible.where(id: query_term.to_i)
else
[]
end
end
def work_packages_by_subject_or_id
query_term_sql = subject_or_id_query(params[:q].to_s)
work_package_scope
.visible
.where(query_term_sql)
.order("#{WorkPackage.table_name}.id ASC") # :id does not work because...
.limit(10)
.includes(:type)
end
def wp_hashes_with_string(work_packages)
work_packages.map do |work_package|
wp_hash = Hash.new
work_package.attributes.each { |key, value| wp_hash[key] = Rack::Utils.escape_html(value) }
wp_hash['to_s'] = Rack::Utils.escape_html(work_package.to_s)
wp_hash
end
end
def subject_or_id_query(query_term)
if query_term =~ /\A\d+\z/
["#{WorkPackage.table_name}.subject LIKE :q OR
CAST(#{WorkPackage.table_name}.id AS CHAR(13)) LIKE :q",
{ q: "%#{query_term}%" }]
else
["LOWER(#{WorkPackage.table_name}.subject) LIKE :q",
{ q: "%#{query_term.downcase}%" }]
end
end
def work_package_scope
scope = WorkPackage.all
# The filter on subject in combination with the ORDER BY on id
# seems to trip MySql's usage of indexes on the order statement
# I haven't seen similar problems on postgresql but there might be as the
# data at hand was not very large.
#
# For MySql we are therefore helping the DB optimizer to use the correct index
if ActiveRecord::Base.connection_config[:adapter] == 'mysql2'
scope = scope.from("#{WorkPackage.table_name} USE INDEX(PRIMARY)")
end
scope
end
end