git
Today, I am going to introduce a technique to easily find out the first bad commit in your git repository. With this technique, you can save a lot of time debugging a code introduced by certain commit. Let's get started! First, assume that we have the following commits
html
Unlike other form controls such as textbox, checkbox or radio button, you'll find it hard to customize file upload control. The look and feel of this control is totally managed by the rendering browser. A simple customization like changing the button color or remove the text "Choose
rails
Callbacks are great and many business rules are often implemented in those callbacks to maintain data consistency and perform useful actions in app. As you might know, we can define several kinds of callbacks in ActiveRecord model, refer to the following guide for more detailed information: http://guides.rubyonrails.org/
rails
When installing new gem for Rails application, you expect to run simple command bundle install and hopefully all gems in Gemfile will be installed in your machine. Unfortunately, that is not always the case. It is because many gems require a specific library to be pre-installed. In this post, I
rails
In this tutorial, I am going to show you how to setup your server to run Rails application on Nginx with Puma server, and how to deploy the app with Mina tool. 1. Installing Ruby ==== First, we need to install some dependencies for Ruby sudo apt-get update sudo apt-get install
css
If you are using CloudFront for hosting static assets and having trouble with the CORS which prevents the icons from displaying properly on your website, in this post, I am going to show how to resolve this issue. As you have already known, the main cause of CORS issue is
deployment
If you are a web developer, there is one thing to which you should pay attention: Static assets on your hosts should be cached by the browsers if it does not change very often. More specifically, when you request the assets (CSS + JS) for the first time, the files will
rails
This week, I would like to introduce a gem which is being used in almost every project I have been working on. And it becomes more important for us nowadays because everyone want their website to be SEO efficiently. Link: https://github.com/norman/friendly_id Developed by: Norman Clarke
rails
Every Rails developers might be already familiar with data-confirm attribute for a link. It is used to ask for user confirmation before executing the action on behalf of user. Here is one example <%= link_to "Delete", post_path(post), method: :delete, confirm: "Are you sure?"
rails
Normally, there are two basic ways to integrate Twitter Bootstrap into your Rails application 2. Install a twitter boostrap gem and do a little configuration 3. Manually copy Bootstrap JS + CSS + Fonts into your app The first option is quite easy and many people choose to follow this one. There
best practices
You have just graduated from university and started your professional career as software developer? Here are some tips which will help you become more professional in the eyes of your manager and co-workers. These tips are based on my experience when working with many young developers. And they are the
rails
Today, I really want to start something different which I believe would be very helpful to new Rails developers. I remember the time when I first came to Rails world, I was impressed with its amazing community and gem ocean. I could find almost every thing I needed which has