ruby on rails tutorial learn web development with rails
ruby on rails tutorial learn web development with rails
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Introduction: Ruby on Rails is just one aspect of making Ruby very powerful, just as EJB is part of the Java Enterprise platform. Andrew Glover reveals what Java developers can do with Ruby.
Before I begin this article, I need to clarify a few things. First, it's not an article about
Construction of development environment under Windows system
1. Remote Installation
Step 1: Download and install the Ruby one-click installation package
Download the latest Ruby 1.8.4-16 one-click installation package with a download address of :
http://rubyforge.org/projects/rubyinstaller/
Run the installation file after downloading, and click th
Build a ruby on rails development environment under CentOS7, centos7rails
1. Install rvm
Curl-L https://get.rvm.io | bash-s stable
Rvm is a command line tool that provides management and switching of Multi-version ruby environments. You can also manage different gemsets based on projects.
If the ssh key is not gene
Extract to a directory (for example: D:\server\Ruby200Install\ruby-kit)2 run cmd execute ruby dk.rb init and Ruby dk.rb install command in the Ruby-kit directoryVerify: Rails-v display version number in CMD indicates normal
4 Replace the Rubygem library address (very impor
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 whi
Ror may be the biggest difficulty for beginners, that is, the installation and setup of the development environment. Today, it has been around for a long time, and the process has been posted here, so that beginners can avoid detours.
1. Install Ruby 1.8.6
Open http://rubyforge.org/frs? Group_id = 167, install the final version of ruby1.8.6-26
After the download is complete, enter the
Brief introduction
The Ruby on Rails framework has been widely watched since its inception and, guided by ideas like "Don't repeat Yourself" and "contract is superior to configuration", rails gives Web developers a very high level of development efficiency. ActiveRecord's f
Several solutions to improve Ruby on Rails performance: rubyrails
Introduction
The Ruby On Rails framework has received wide attention since it was proposed. Under the guidance of ideas such as "do not repeat yourself" and "convention is better than configuration, rails brin
Ruby on Rails is a ruby-based Web development framework that follows the MVC pattern. Using ROR will give you a faster and more rapid web development experience. Compared to Java EE, th
5. Below we want to use gem, before using, first switch to Taobao server gem more use, see://View the current Gem source list, the default source is
https://rubygems.org/
6. Installing Rails with Gems
Gem Install rails///////////////////////////
and start installing Ruby on Rails.
presentation layer is rendered by the browser
The logical layer manipulates the data from the server side and goes to the presentation layer
The data layer is responsible for storing the data.
6-tier architectureIf you divide it further, you get a 6-tier architecture, such as
The presentation layer is divided into the client layer and the presentation logic layer
The client layer is responsible for rendering the display page
Indicates that the logical layer generat
The presentation layer is rendered by the browser
The logical layer manipulates the data from the server side and goes to the presentation layer
The data layer is responsible for storing the data.
6-tier architectureAssuming a further cut, you get a 6-tier architecture, such as
The presentation layer is divided into the client layer and the presentation logic layer
The client layer is responsible for rendering the display page
Indicates that the logical layer g
Use Instantrails to quickly build ruby on rails development environment
There's been a lot of interest in Ruby on Rails to see what's been praised by many people, but the development that has been done under Windows is a headache
Description: User resources include user data models and Web pages related to this model.1. The user data model is as follows:2. Using rails built-in scaffolding to generate user resources, execute the following command:$ rails Generate scaffold User name:string email:string #创建模型$ rails Destroy Scaffold User #销毁模型$ bu
Here simply add a few validations, non-empty, minimum length, uniqueModifying a modelModify the App/models/post.rb file as follows:Class Post At this time to run the service, modify/New model, when nothing is filled, can not be submitted, nor error.What's the reason?Because you didn't show the error message.Modify viewsModify the App/views/posts/new.html.erb file as follows:That is, addFor App/views/posts/edit.html.erb.Running the serviceRails S-b 192.168.xxx.xxx-p 3000, add a record, do not fil
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
: Network Disk DownloadThis is the first book on the Ruby on Rails.The main contents of the book are divided into two parts. In the Build Application section, readers will see an example of a complete online book purchase site. During the presentation, the author truly reproduces a complete iterative development process, giving the reader a firsthand experience of the various problems encountered in real-wo
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
Build a ruby on rails Development Environment on win7, win7rails
For beginners who are new to a new technology or language, building a learning environment is always a tough topic, especially in the domestic network.
After more than 10 hours of hard work, I finally built a ruby + r
In the practice of agile development, the test drive is indispensable. This article looks at a test-driven development example in rails.
Before we wrote and conducted some unit tests and functional tests, our customers suddenly asked to add a feature: Each user of the system could query the product.
We first sketched some sketches to sort out our ideas and desi
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