search_controller.rb 3.44 KB
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#-- encoding: UTF-8
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#-- copyright
# ChiliProject is a project management system.
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#
Holger Just's avatar
Holger Just committed
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# Copyright (C) 2010-2013 the ChiliProject Team
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#
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# 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.
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#
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# See doc/COPYRIGHT.rdoc for more details.
#++

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class SearchController < ApplicationController
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  before_filter :find_optional_project
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  include MessagesHelper

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  def index
    @question = params[:q] || ""
    @question.strip!
    @all_words = params[:all_words] || (params[:submit] ? false : true)
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    @titles_only = !params[:titles_only].nil?
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    projects_to_search =
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      case params[:scope]
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      when 'all'
        nil
      when 'my_projects'
        User.current.memberships.collect(&:project)
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      when 'subprojects'
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        @project ? (@project.self_and_descendants.active) : nil
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      else
        @project
      end
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    offset = nil
    begin; offset = params[:offset].to_time if params[:offset]; rescue; end
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    # quick jump to an issue
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    if @question.match(/^#?(\d+)$/) && Issue.visible.find_by_id($1.to_i)
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      redirect_to :controller => "issues", :action => "show", :id => $1
      return
    end
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    @object_types = Redmine::Search.available_search_types.dup
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    if projects_to_search.is_a? Project
      # don't search projects
      @object_types.delete('projects')
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      # only show what the user is allowed to view
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      @object_types = @object_types.select {|o| User.current.allowed_to?("view_#{o}".to_sym, projects_to_search)}
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    end
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    @scope = @object_types.select {|t| params[t]}
    @scope = @object_types if @scope.empty?
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    # extract tokens from the question
    # eg. hello "bye bye" => ["hello", "bye bye"]
    @tokens = @question.scan(%r{((\s|^)"[\s\w]+"(\s|$)|\S+)}).collect {|m| m.first.gsub(%r{(^\s*"\s*|\s*"\s*$)}, '')}
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    # tokens must be at least 2 characters long
    @tokens = @tokens.uniq.select {|w| w.length > 1 }
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    if !@tokens.empty?
      # no more than 5 tokens to search for
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      @tokens.slice! 5..-1 if @tokens.size > 5

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      @results = []
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      @results_by_type = Hash.new {|h,k| h[k] = 0}
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      limit = 10
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      @scope.each do |s|
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        r, c = s.singularize.camelcase.constantize.search(@tokens, projects_to_search,
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          :all_words => @all_words,
          :titles_only => @titles_only,
          :limit => (limit+1),
          :offset => offset,
          :before => params[:previous].nil?)
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        @results += r
        @results_by_type[s] += c
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      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
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          @pagination_next_date = @results[limit-1].event_datetime
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          @results = @results[0, limit]
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        end
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      else
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        @pagination_next_date = @results[-1].event_datetime if offset && @results[-1]
        if @results.size > limit
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          @pagination_previous_date = @results[-(limit)].event_datetime
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          @results = @results[-(limit), limit]
        end
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      end
    else
      @question = ""
    end
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    render :layout => false if request.xhr?
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  end

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private
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  def find_optional_project
    return true unless params[:id]
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    @project = Project.find(params[:id])
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    check_project_privacy
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  rescue ActiveRecord::RecordNotFound
    render_404
  end
end