1  # encoding: utf-8
   2  #
   3  # Redmine - project management software
   4  # Copyright (C) 2006-2011  Jean-Philippe Lang
   5  #
   6  # This program is free software; you can redistribute it and/or
   7  # modify it under the terms of the GNU General Public License
   8  # as published by the Free Software Foundation; either version 2
   9  # of the License, or (at your option) any later version.
  10  #
  11  # This program is distributed in the hope that it will be useful,
  12  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  # GNU General Public License for more details.
  15  #
  16  # You should have received a copy of the GNU General Public License
  17  # along with this program; if not, write to the Free Software
  18  # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19 
  20  module QueriesHelper
  21 
  22    def operators_for_select(filter_type)
  23      Query.operators_by_filter_type[filter_type].collect {|o| [l(Query.operators[o]), o]}
  24    end
  25 
  26    def column_header(column)
  27      column.sortable ? sort_header_tag(column.name.to_s, :caption => column.caption,
  28                                                          :default_order => column.default_order) :
  29                        content_tag('th', h(column.caption))
  30    end
  31 
  32    def column_content(column, issue)
  33      value = column.value(issue)
  34      if value.is_a?(Array)
  35        value.collect {|v| column_value(column, issue, v)}.compact.sort.join(', ').html_safe
  36      else
  37        column_value(column, issue, value)
  38      end
  39    end
  40    
  41    def column_value(column, issue, value)
  42      case value.class.name
  43      when 'String'
  44        if column.name == :subject
  45          link_to(h(value), :controller => 'issues', :action => 'show', :id => issue)
  46        else
  47          h(value)
  48        end
  49      when 'Time'
  50        format_time(value)
  51      when 'Date'
  52        format_date(value)
  53      when 'Fixnum', 'Float'
  54        if column.name == :done_ratio
  55          progress_bar(value, :width => '80px')
  56        elsif  column.name == :spent_hours
  57          sprintf "%.2f", value
  58        else
  59          h(value.to_s)
  60        end
  61      when 'User'
  62        link_to_user value
  63      when 'Project'
  64        link_to_project value
  65      when 'Version'
  66        link_to(h(value), :controller => 'versions', :action => 'show', :id => value)
  67      when 'TrueClass'
  68        l(:general_text_Yes)
  69      when 'FalseClass'
  70        l(:general_text_No)
  71      when 'Issue'
  72        link_to_issue(value, :subject => false)
  73      else
  74        h(value)
  75      end
  76    end
  77 
  78    # Retrieve query from session or build a new query
  79    def retrieve_query
  80      if !params[:query_id].blank?
  81        cond = "project_id IS NULL"
  82        cond << " OR project_id = #{@project.id}" if @project
  83        @query = Query.find(params[:query_id], :conditions => cond)
  84        raise ::Unauthorized unless @query.visible?
  85        @query.project = @project
  86        session[:query] = {:id => @query.id, :project_id => @query.project_id}
  87        sort_clear
  88      elsif api_request? || params[:set_filter] || session[:query].nil? || session[:query][:project_id] != (@project ? @project.id : nil)
  89        # Give it a name, required to be valid
  90        @query = Query.new(:name => "_")
  91        @query.project = @project
  92        build_query_from_params
  93        session[:query] = {:project_id => @query.project_id, :filters => @query.filters, :group_by => @query.group_by, :column_names => @query.column_names}
  94      else
  95        # retrieve from session
  96        @query = Query.find_by_id(session[:query][:id]) if session[:query][:id]
  97        @query ||= Query.new(:name => "_", :filters => session[:query][:filters], :group_by => session[:query][:group_by], :column_names => session[:query][:column_names])
  98        @query.project = @project
  99      end
 100    end
 101 
 102    def retrieve_query_from_session
 103      if session[:query]
 104        if session[:query][:id]
 105          @query = Query.find_by_id(session[:query][:id])
 106          return unless @query
 107        else
 108          @query = Query.new(:name => "_", :filters => session[:query][:filters], :group_by => session[:query][:group_by], :column_names => session[:query][:column_names])
 109        end
 110        if session[:query].has_key?(:project_id)
 111          @query.project_id = session[:query][:project_id]
 112        else
 113          @query.project = @project
 114        end
 115        @query
 116      end
 117    end
 118 
 119    def build_query_from_params
 120      if params[:fields] || params[:f]
 121        @query.filters = {}
 122        @query.add_filters(params[:fields] || params[:f], params[:operators] || params[:op], params[:values] || params[:v])
 123      else
 124        @query.available_filters.keys.each do |field|
 125          @query.add_short_filter(field, params[field]) if params[field]
 126        end
 127      end
 128      @query.group_by = params[:group_by] || (params[:query] && params[:query][:group_by])
 129      @query.column_names = params[:c] || (params[:query] && params[:query][:column_names])
 130    end
 131  end