Chris@1295: # Redmine - project management software
Chris@1295: # Copyright (C) 2006-2013  Jean-Philippe Lang
Chris@1295: #
Chris@1295: # This program is free software; you can redistribute it and/or
Chris@1295: # modify it under the terms of the GNU General Public License
Chris@1295: # as published by the Free Software Foundation; either version 2
Chris@1295: # of the License, or (at your option) any later version.
Chris@1295: #
Chris@1295: # This program is distributed in the hope that it will be useful,
Chris@1295: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@1295: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@1295: # GNU General Public License for more details.
Chris@1295: #
Chris@1295: # You should have received a copy of the GNU General Public License
Chris@1295: # along with this program; if not, write to the Free Software
Chris@1295: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@1295: 
Chris@1295: class SearchController < ApplicationController
Chris@1295:   before_filter :find_optional_project
Chris@1295: 
Chris@1295:   def index
Chris@1295:     @question = params[:q] || ""
Chris@1295:     @question.strip!
Chris@1295:     @all_words = params[:all_words] ? params[:all_words].present? : true
Chris@1295:     @titles_only = params[:titles_only] ? params[:titles_only].present? : false
Chris@1295: 
Chris@1295:     projects_to_search =
Chris@1295:       case params[:scope]
Chris@1295:       when 'all'
Chris@1295:         nil
Chris@1295:       when 'my_projects'
Chris@1295:         User.current.memberships.collect(&:project)
Chris@1295:       when 'subprojects'
Chris@1295:         @project ? (@project.self_and_descendants.active.all) : nil
Chris@1295:       else
Chris@1295:         @project
Chris@1295:       end
Chris@1295: 
Chris@1295:     offset = nil
Chris@1295:     begin; offset = params[:offset].to_time if params[:offset]; rescue; end
Chris@1295: 
Chris@1295:     # quick jump to an issue
Chris@1295:     if (m = @question.match(/^#?(\d+)$/)) && (issue = Issue.visible.find_by_id(m[1].to_i))
Chris@1295:       redirect_to issue_path(issue)
Chris@1295:       return
Chris@1295:     end
Chris@1295: 
Chris@1295:     @object_types = Redmine::Search.available_search_types.dup
Chris@1295:     if projects_to_search.is_a? Project
Chris@1295:       # don't search projects
Chris@1295:       @object_types.delete('projects')
Chris@1295:       # only show what the user is allowed to view
Chris@1295:       @object_types = @object_types.select {|o| User.current.allowed_to?("view_#{o}".to_sym, projects_to_search)}
Chris@1295:     end
Chris@1295: 
Chris@1295:     @scope = @object_types.select {|t| params[t]}
Chris@1295:     @scope = @object_types if @scope.empty?
Chris@1295: 
Chris@1295:     # extract tokens from the question
Chris@1295:     # eg. hello "bye bye" => ["hello", "bye bye"]
Chris@1295:     @tokens = @question.scan(%r{((\s|^)"[\s\w]+"(\s|$)|\S+)}).collect {|m| m.first.gsub(%r{(^\s*"\s*|\s*"\s*$)}, '')}
Chris@1295:     # tokens must be at least 2 characters long
Chris@1295:     @tokens = @tokens.uniq.select {|w| w.length > 1 }
Chris@1295: 
Chris@1295:     if !@tokens.empty?
Chris@1295:       # no more than 5 tokens to search for
Chris@1295:       @tokens.slice! 5..-1 if @tokens.size > 5
Chris@1295: 
Chris@1295:       @results = []
Chris@1295:       @results_by_type = Hash.new {|h,k| h[k] = 0}
Chris@1295: 
Chris@1295:       limit = 10
Chris@1295:       @scope.each do |s|
Chris@1295:         r, c = s.singularize.camelcase.constantize.search(@tokens, projects_to_search,
Chris@1295:           :all_words => @all_words,
Chris@1295:           :titles_only => @titles_only,
Chris@1295:           :limit => (limit+1),
Chris@1295:           :offset => offset,
Chris@1295:           :before => params[:previous].nil?)
Chris@1295:         @results += r
Chris@1295:         @results_by_type[s] += c
Chris@1295:       end
Chris@1295:       @results = @results.sort {|a,b| b.event_datetime <=> a.event_datetime}
Chris@1295:       if params[:previous].nil?
Chris@1295:         @pagination_previous_date = @results[0].event_datetime if offset && @results[0]
Chris@1295:         if @results.size > limit
Chris@1295:           @pagination_next_date = @results[limit-1].event_datetime
Chris@1295:           @results = @results[0, limit]
Chris@1295:         end
Chris@1295:       else
Chris@1295:         @pagination_next_date = @results[-1].event_datetime if offset && @results[-1]
Chris@1295:         if @results.size > limit
Chris@1295:           @pagination_previous_date = @results[-(limit)].event_datetime
Chris@1295:           @results = @results[-(limit), limit]
Chris@1295:         end
Chris@1295:       end
Chris@1295:     else
Chris@1295:       @question = ""
Chris@1295:     end
Chris@1295:     render :layout => false if request.xhr?
Chris@1295:   end
Chris@1295: 
Chris@1295: private
Chris@1295:   def find_optional_project
Chris@1295:     return true unless params[:id]
Chris@1295:     @project = Project.find(params[:id])
Chris@1295:     check_project_privacy
Chris@1295:   rescue ActiveRecord::RecordNotFound
Chris@1295:     render_404
Chris@1295:   end
Chris@1295: end