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

112 lines
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# redMine - project management software
# Copyright (C) 2006 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 SearchController < ApplicationController
layout 'base'
helper :messages
include MessagesHelper
def index
@question = params[:q] || ""
@question.strip!
@all_words = params[:all_words] || (params[:submit] ? false : true)
@titles_only = !params[:titles_only].nil?
offset = nil
begin; offset = params[:offset].to_time if params[:offset]; rescue; end
# quick jump to an issue
if @question.match(/^#?(\d+)$/) && Issue.find_by_id($1, :include => :project, :conditions => Project.visible_by(User.current))
redirect_to :controller => "issues", :action => "show", :id => $1
return
end
if params[:id]
find_project
return unless check_project_privacy
end
if @project
# only show what the user is allowed to view
@object_types = %w(issues news documents changesets wiki_pages messages)
@object_types = @object_types.select {|o| User.current.allowed_to?("view_#{o}".to_sym, @project)}
@scope = @object_types.select {|t| params[t]}
@scope = @object_types if @scope.empty?
else
@object_types = @scope = %w(projects)
end
# extract tokens from the question
# eg. hello "bye bye" => ["hello", "bye bye"]
@tokens = @question.scan(%r{((\s|^)"[\s\w]+"(\s|$)|\S+)}).collect {|m| m.first.gsub(%r{(^\s*"\s*|\s*"\s*$)}, '')}
# tokens must be at least 3 character long
@tokens = @tokens.uniq.select {|w| w.length > 2 }
if !@tokens.empty?
# no more than 5 tokens to search for
@tokens.slice! 5..-1 if @tokens.size > 5
# strings used in sql like statement
like_tokens = @tokens.collect {|w| "%#{w.downcase}%"}
@results = []
limit = 10
if @project
@scope.each do |s|
@results += s.singularize.camelcase.constantize.search(like_tokens, @project,
:all_words => @all_words,
:titles_only => @titles_only,
:limit => (limit+1),
:offset => offset,
:before => params[:previous].nil?)
end
@results = @results.sort {|a,b| b.event_datetime <=> a.event_datetime}
if params[:previous].nil?
@pagination_previous_date = @results[0].event_datetime if offset && @results[0]
if @results.size > limit
@pagination_next_date = @results[limit-1].event_datetime
@results = @results[0, limit]
end
else
@pagination_next_date = @results[-1].event_datetime if offset && @results[-1]
if @results.size > limit
@pagination_previous_date = @results[-(limit)].event_datetime
@results = @results[-(limit), limit]
end
end
else
operator = @all_words ? ' AND ' : ' OR '
@results += Project.find(:all,
:limit => limit,
:conditions => [ (["(#{Project.visible_by(User.current)}) AND (LOWER(name) like ? OR LOWER(description) like ?)"] * like_tokens.size).join(operator), * (like_tokens * 2).sort]
) if @scope.include? 'projects'
# if only one project is found, user is redirected to its overview
redirect_to :controller => 'projects', :action => 'show', :id => @results.first and return if @results.size == 1
end
else
@question = ""
end
render :layout => false if request.xhr?
end
private
def find_project
@project = Project.find(params[:id])
rescue ActiveRecord::RecordNotFound
render_404
end
end