ruby on rails tutorial

Tutorial on Ruby on Rails to implement the most basic user registration and login functions, rubyrails It is very convenient to implement the user registration and login functions in Rails. For example, you can use the Devise class to implement the complete function of the gem extension package. You can also use the ha

Images can be said to be a critical part of any application. From social networks to a simple bug tracker, images play an important role. Managing images, however, is not an easy task and requires a lot of time and energy to plan ahead. This article demonstrates how to achieve this goal in rail. How do you handle your images and create multiple versions in the background? How to improve the performance of the page by compressing the image without compromising the image quality? These are the on

Tags: railsThere are 11 chapters in total, a simple Weibo system.The development is driven by testing, so there are a lot of test code in the book. At the beginning, I felt very uncomfortable. After a while, I still don't like this development method. Finally, I chose to organize the knowledge points in the book in my own way. That is to say, I separate the development part from the test part. After thinking about it, I think the knowledge points can be divided into the following four points.1.

1, Purpose: Use Heroku to deploy the development environment to the production environment. Heroku is dedicated to deploying rails and other Web applications, and the process of deploying rails applications is straightforward-as long as the source code is incorporated into the GIT version control system.2. Build Heroku Deployment Environment(1) Heroku use PostgreSQL database, so to add PG to the production

1) Install Ruby Download installation package:http://rubyforge.org/frs/?group_id=167, I downloaded the Rubyinstaller-1.8.7-p302.exe After loading, you can use RUBY-V test whether the installation is successful, such as figure, if a version of the installation is successful 2) Installation RubyGems RubyGems is a Ruby Package Manager tool that mak

1. The microblog model is as follows:2, the creation of Weibo resources, the command is as follows:$ rails Generate scaffold micropost content:text User_id:integer #生成微博资源$ bundle EXEC Rake db:migrate #执行迁移, update the database, use the new data model3, the content of micro-blog restrictions(1) Limit the length of WeiboIn the APP/MODELS/MICROPOST.RBclass Micropost activerecord::base validates:content, length:{maximum: }end(2) Weibo cannot be emptyclas

to the browser.(1) Nesting:{ text-align: center;} . Center H1 { margin-bottom: 10px;}The nested format is as follows:{ text-align: Center; h1{ margin-bottom: 10px; } }{ float: left; margin-right: 10px;} { color: #fff; Text-decoration: none;}The nested format is as follows:{ float: left; margin-right: 10px; :hover {#在SCSS中, using conforming to a reference to the parent element color: #fff; Text-decoration: none; } }(2) Variables

(Chapter I. Summary)First step: Build the project skeleton$ Rails _4.1.6_ New Toy_appStep Two: Modify GemfileStep three: Install the gem$ bundle Install--without productionFourth step: Add the app to the GIT version control system$ git init$ git add-a$ git commit-m "Initialize repository"Fifth step: Push the code to the remote repository#在GitHub网站创建新的repository$ git Remote add origin [email Protected]:lihuasun/toy_app$ Git push-u origin--allSixth step

Keywords: Ruby on Rails, instantrails, windows, getting started, tutorial I always wanted to try Ruby on Rails, but I was not familiar with Apache and MySQL, and I was not confident in setting up the rails environment. So I never

Ruby on Rails Session 1: How to Build a Ruby on Rails on the Ubuntu., railsubuntuAbout Ruby on Rails Ruby on Rails is an application stack t

About Ruby on Rails Ruby on Rails is an application stack that provides developers with a framework to quickly create a variety of Web applications. ruby on Rails does take a little while to install on a virtual server, but luckil