cloned project title

/**
 * Create a project copy
 */
exports.clone = function(req, res) {
    var project = req.project.toObject(),
        title = project.title,
        prefix = 'Копия ',
        postfix = '',
        copyTitle = title.indexOf(prefix) === 0 ? title.replace(/ \(\d+\)$/,'') : prefix + title,
        titlePattern = new RegExp('^' + escape(copyTitle) + '( \\(\\d+\\))?$'),
        count = 0;

    console.log('title pattern ', titlePattern);

    Project
      .find({title: titlePattern})
      .exec(function(err, projectCopies){
          if (err) return next(err);

          var titles = projectCopies.map(function(p) { return p.title;});

          console.log('copies', titles);
          
          // find unused copy name
          while(titles.indexOf(copyTitle + postfix) !== -1){
            count++;
            postfix = ' (' + count + ')';
            console.log('copyTitle', copyTitle + postfix);
          }

          // prepeare new project object
          delete project['_id'];
          // set copy title
          project.title = copyTitle + postfix;
          // set type as user own project
          project.type = 0;

          project = new Project(project);



          console.log('clone name ', project.title);
          
          project.save(function(err) {
              if (err) {
                  console.log('an error ocurrend while project clone saving');
                  return next(err);
              } else {
                  console.log('project cloned');
                  res.jsonp(project);
              }
          });

        });
  };