1  # Redmine - project management software
   2  # Copyright (C) 2006-2011  Jean-Philippe Lang
   3  #
   4  # This program is free software; you can redistribute it and/or
   5  # modify it under the terms of the GNU General Public License
   6  # as published by the Free Software Foundation; either version 2
   7  # of the License, or (at your option) any later version.
   8  #
   9  # This program is distributed in the hope that it will be useful,
  10  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  # GNU General Public License for more details.
  13  #
  14  # You should have received a copy of the GNU General Public License
  15  # along with this program; if not, write to the Free Software
  16  # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17 
  18  class SearchController < ApplicationController
  19    before_filter :find_optional_project
  20 
  21    helper :messages
  22    include MessagesHelper
  23 
  24    def index
  25      @question = params[:q] || ""
  26      @question.strip!
  27      @all_words = params[:all_words] ? params[:all_words].present? : true
  28      @titles_only = params[:titles_only] ? params[:titles_only].present? : false
  29 
  30      projects_to_search =
  31        case params[:scope]
  32        when 'all'
  33          nil
  34        when 'my_projects'
  35          User.current.memberships.collect(&:project)
  36        when 'subprojects'
  37          @project ? (@project.self_and_descendants.active.all) : nil
  38        else
  39          @project
  40        end
  41 
  42      offset = nil
  43      begin; offset = params[:offset].to_time if params[:offset]; rescue; end
  44 
  45      # quick jump to an issue
  46      if @question.match(/^#?(\d+)$/) && Issue.visible.find_by_id($1.to_i)
  47        redirect_to :controller => "issues", :action => "show", :id => $1
  48        return
  49      end
  50 
  51      @object_types = Redmine::Search.available_search_types.dup
  52      if projects_to_search.is_a? Project
  53        # don't search projects
  54        @object_types.delete('projects')
  55        # only show what the user is allowed to view
  56        @object_types = @object_types.select {|o| User.current.allowed_to?("view_#{o}".to_sym, projects_to_search)}
  57      end
  58 
  59      @scope = @object_types.select {|t| params[t]}
  60      @scope = @object_types if @scope.empty?
  61 
  62      # extract tokens from the question
  63      # eg. hello "bye bye" => ["hello", "bye bye"]
  64      @tokens = @question.scan(%r{((\s|^)"[\s\w]+"(\s|$)|\S+)}).collect {|m| m.first.gsub(%r{(^\s*"\s*|\s*"\s*$)}, '')}
  65      # tokens must be at least 2 characters long
  66      @tokens = @tokens.uniq.select {|w| w.length > 1 }
  67 
  68      if !@tokens.empty?
  69        # no more than 5 tokens to search for
  70        @tokens.slice! 5..-1 if @tokens.size > 5
  71 
  72        @results = []
  73        @results_by_type = Hash.new {|h,k| h[k] = 0}
  74 
  75        limit = 10
  76        @scope.each do |s|
  77          r, c = s.singularize.camelcase.constantize.search(@tokens, projects_to_search,
  78            :all_words => @all_words,
  79            :titles_only => @titles_only,
  80            :limit => (limit+1),
  81            :offset => offset,
  82            :before => params[:previous].nil?)
  83          @results += r
  84          @results_by_type[s] += c
  85        end
  86        @results = @results.sort {|a,b| b.event_datetime <=> a.event_datetime}
  87        if params[:previous].nil?
  88          @pagination_previous_date = @results[0].event_datetime if offset && @results[0]
  89          if @results.size > limit
  90            @pagination_next_date = @results[limit-1].event_datetime
  91            @results = @results[0, limit]
  92          end
  93        else
  94          @pagination_next_date = @results[-1].event_datetime if offset && @results[-1]
  95          if @results.size > limit
  96            @pagination_previous_date = @results[-(limit)].event_datetime
  97            @results = @results[-(limit), limit]
  98          end
  99        end
 100      else
 101        @question = ""
 102      end
 103      render :layout => false if request.xhr?
 104    end
 105 
 106  private
 107    def find_optional_project
 108      return true unless params[:id]
 109      @project = Project.find(params[:id])
 110      check_project_privacy
 111    rescue ActiveRecord::RecordNotFound
 112      render_404
 113    end
 114  end