old_contents: var App = require('./application');
  
  module.exports.app    = App;
  
  module.exports = function(Obj, cb){
  	if(Obj){
  		App(Obj, function(err, app){
  			if(err) return cb(err, Obj);
  			else return cb(null, app);
  		});		
  	} else {
  		return cb({type:'!No READ Item'}, Obj);
  	}
  };
  
new_contents: var App = require('./application');
  
  module.exports.app    = App;
  
  module.exports = function(Obj, cb){
  	if(Obj){
  		if(Obj.user){
  			App({user:Obj.user}, function(err, app){
  				if(err) return cb(err, Obj);
  				else return cb(null, app);
  			});
  		} else {
  			App({_id:Obj.id}, function(err, app){
  				if(err) return cb(err, Obj);
  				else return cb(null, app);
  			});
  		}
  	} else {
  		return cb({type:'!No READ Item'}, Obj);
  	}
  };
  
subject: Read modification