Javascript to group queries in categories within sfDebugBar

sfWebDebugdbCategory.js

var sfWebDebugdbCategory = function () {
  return {
    init: function (categoriesPatterns) {
      if (!$("#sfWebDebugdbDetails")) {
        return ;
      }

      var categoryInfos = {};

      var sqlInfosRegexp = /time: (.*) sec/;

      $('li', $('#sfWebDebugDatabaseLogs')).each(function(index, el) {
        var sql        = $('.sfWebDebugDatabaseQuery', el).text();

        var category = 'main';
        var categoryFound = false;
        for (var key in categoriesPatterns) {

          for (var i = 0; i < categoriesPatterns[key].length; i++) {

            var re = new RegExp(categoriesPatterns[key][i]);
            if(re.test(sql))
            {
              category = key;
              categoryFound = true;
              break;
            }
          }

          if (categoryFound) {
            break;
          }
        }

        var queryInfos = $('.sfWebDebugDatabaseLogInfo', el).text();
        var queryTime  = parseFloat(sqlInfosRegexp.exec(queryInfos)[1]);

        if (typeof categoryInfos[category] === 'undefined')
        {
          categoryInfos[category] = {time: 0, nb: 0};
        }

        categoryInfos[category]['time'] += queryTime;
        categoryInfos[category]['nb']++;

        $(el).addClass('sql-'+category);
      });

      var categoryTotal = {time: 0, nb: 0};
      for (var key in categoryInfos)
      {
        categoryTotal['time'] += categoryInfos[key]['time'];
        categoryTotal['nb']   += categoryInfos[key]['nb'];
      }
      categoryInfos['total'] = categoryTotal;

      var sqlInfosHtml = '<ul id="sfWebDebugDatabaseLogsCategories">';
      for (var key in categoryInfos)
      {
        var inputHtml = '<input type="checkbox" name="sfWebDebugDatabaseLogsCategory" value="' + key + '" checked="checked">'

        sqlInfosHtml += '<li>' + inputHtml + key + ' (' + categoryInfos[key]['nb'] +'  reqs): ' + Math.round(categoryInfos[key]['time']*100)/100 + ' sec</li>'
      }
      sqlInfosHtml += '</ul>';

      $(sqlInfosHtml).insertAfter($('h3', $('#sfWebDebugDatabaseLogs')));

      $('#sfWebDebugDatabaseLogsCategories').delegate('input', 'click', function() {
        var category = this.value;
        
        if (category === 'total') {
          
          if (this.checked) {
            $('ol li', $('#sfWebDebugDatabaseLogs')).show();
            $('input[name=sfWebDebugDatabaseLogsCategory]', $('#sfWebDebugDatabaseLogs')).attr('checked', 'checked');
          } else {
            $('ol li', $('#sfWebDebugDatabaseLogs')).hide();
            $('input[name=sfWebDebugDatabaseLogsCategory]', $('#sfWebDebugDatabaseLogs')).attr('checked', '');
          }
          
        } else {
          $('.sql-'+this.value, $('#sfWebDebugDatabaseLogs')).toggle();
        }
      });
    }
  }
}();