Every time you create a web application where users can register, it is good to exclude some login or username so that they can not be used. A classic example is the login "adm...

Hello everyone.With today’s article I want to show how to implement two dropdowns dependent on each other using Django and jQuery.Suppose we have a 1-N relationship between car ...

In my last post I talked about Ruby's hash. Today I will resume and complete the argument by describing some of the things you can do to manipulate the hash values. 1. How to i...

Hello everyone.In this article I will show you how to create a custom feed in Django, using the Django Syndication Feed Framework 1.2 or higher.I’ve had to create an XML with so...

The most famous framework based on Ruby language, Ruby on Rails, makes extensive use of hash. And cause in our blog we talk mainly about development with Ruby on Rails it seem f...

Today I want to present a very convenient jQuery plugin I’ve used to create a combo box with checkboxes for a multi-selection field.Suppose we have a form of insertion / modific...

In some projects can happen that you have to use different graphic templates for different methods of the same controller. At first sight one would implement a solution that pro...

With the today’s post I shall conclude my series on Ruby On Rails Best Practices . This is not because the required topics are completed, but rather because after the release of...

Migrations, in my opinion, are one of the best things in Rails since these allow the creation and populating the database using ruby code without having to worry about which typ...

In today’s post I will show some optimization we can do for models. I’ll focus on how to put methods inside the right model and delegation to get a better code.1. Put method in...

Today's post discusses the first of the behavioral pattern shown by the GoF, the chain of responsibility. This pattern expects a series of commands to be executed and a set of ...

[POST UPDATE ON 19/07/2010 - 15:45] Continuing our analysis of the Rails Best Practices today we’ll see two other tricks to make more readable method of the controller.1. Method...

This second post of the series leaves for a moment the creational patterns and speaks about one of the most important structural pattern: the Adapter. The purpose of an adapter...

Today we continue our analysis of the Rails Best Practices. In the previous post we saw Named Scope, Model Association and Following the same direction, in today’s post we’ll ex...

An abstract Factory provides a common interface for creating families of related objects together. The client object does not bother to build objects directly, but it calls th...