ruby on rails web app tutorial

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[Ruby on Rails series]3, initial rails: Developing the first Web program using Rails

The first two sections of this series have already covered how to configure the Ruby on Rails development environment, and now it's time to get to the point!Part1. Pre-development Preparation The main task of this time is to develop the first rails program. In particular, this time I chose a (PAAs development platform), which is the Cloud 9 platform describ

Ruby on Rails Tutorial Fourth of the Ruby strings behind rails

1. Auxiliary methods2. StringEnter "IRB" into the ruby command-line development environment, and the controller starts by executing "rails console" on the command line.(1) String connection>>"foo"+"bar"="foobar" (2) Interpolation by special syntax #{}>>first_name="Amy" ="Amy">>" #{first_name} Sun"+"Amy Sun "(3) The difference between a single-quote string and a double-quote string: Single-quote strings the

Use Ruby on Rails to quickly develop web applications.

/view/controller (model/view/controller, MVC) architecture. Although this technology is not unique to Rails-or even not unique to Web applications (compared to other programs), Rails has a very clear and specific MVC way of thinking. If you do not use the MVC method, Rails will be much less useful (compared to followin

Tutorials on using Ruby on Rails to quickly develop Web applications _ruby topics

application's app/models/directory can invoke multiple authentication methods for ActiveRecord. However, you can also leave the model code as a stub rather than relying on the constraints of the RDBMS that holds the data. For example, the application that I developed in this example contains only this skeleton model code (at least initially):Listing 1. Skeleton Model APP/MODELS/CONTACT.RB Class Con

tutorial on using Java code with RJB in Ruby on Rails _ruby topics

Before you start About this tutorial Ruby on Rails (rails) is a full-stack WEB application framework written in Ruby, and Ruby is a rich, free, extensible, portable, object-o

Tutorial on using Rails Active resource in Ruby on Rails _ruby topics

about REST, SOAP, Rails Active Resource, and how to improve interoperability between multiple applications. Ruby on Rails Ruby on Rails (also known as rails or RoR) is an open source Web

Ruby Rails web Development environment--windows

under the C:\ruby directory, and the blog can be modified to the name of the app you want to create. For more help on commanding rails new, execute the command view: Rails new-hstart the Web service1, switch the command line to the application directory;2. Execution:

Add login sign-up function for app Ruby on Rails

; class:"Control-label"%> class:"Form-control"%> class="Form-group"> class:"Control-label"%> "if",class:"Form-control"%> ifDevise_mapping.rememberable? -%> class="Form-group"> class="Actions"> "Login",class:"btn Btn-primary"%> "Forgot Password", New_password_path (resource_name),class:"btn Btn-link"%> (8) In order to protect our methods, add a login check before each method app/controllers/application_controller.rbclass Applicationcontroller actionco

Ruby on Rails installation Configuration tutorial detailed

"Pma_user: "Root"Pma_password: "Root"Volumes:Db:Driver:localGemfile Open the Services/rails/config/gemfile file and enter the contents: SOURCE ' https://rubygems.org 'Gem ' rails ', ' 5.0.0.1 'Dockerfile Open the Services/rails/dockerfile file and enter the contents: From ruby:2.3Maintainer Wanghao RUN apt-get up

Choosing Web Framework:ASP.NET MVC vs Django Python vs Ruby on Rails (reprint)

Source: http://podlipensky.com/2012/06/choosing-web-framework-asp-net-mvc-vs-django-python-vs-ruby-on-rails/How often does emerge from the cubicle to look around, note new faces or new facial expression on old ones? How often does emerge from you technology stacks to consider better another approaches/practices?If you do this rarely–bad for you, you'll miss impor

[Script _ruby] first Ruby on Rails Web application HelloWorld

creating a new project, and this time see the result, then go into the Hello project to open the Gemfile file, in the first line there is a: source ' https://rubygems.org/' Change to our domestic mirror source:[Plain]View Plaincopyprint? SOURCE ' http://ruby.taobao.org/' There is no problem installing bundles at this time:[Plain]View Plaincopyprint? Gem Install bundle You need to create a new controller: Say Specific action: Hello[Plain]View Plaincopyprint?

Tutorial on efficient unit tests on Ruby on Rails, rubyrails

Tutorial on efficient unit tests on Ruby on Rails, rubyrails In the system developed by the author, a large amount of data needs to be analyzed, which not only requires accurate data analysis, but also requires a certain speed. Before writing the test code, I used several major methods to achieve this requirement. As you can imagine, the code is complex, difficul

Tutorial on using Ajax in Ruby on Rails _ruby topics

If you've never heard of rails, you're welcome to return from an extraterrestrial trip, and in recent years it's probably the only place that hasn't heard of Ruby on rails. The most compelling thing about Rails is the ability to quickly build a full-featured application and run it. Rails's built-in integrated Prototype

Submit HTTP GET and HTTP POST requests using the Android client to the WEB application built on the Ruby on Rails

Recently wanted to get an Android app that has access to the Internet, because it's fast so it uses Ruby on Rails to provide HTTP resources. This information is still relatively small, so the attempt to record the process.1 building Web application with Ruby on Rails1.1 New

Ruby on Rails 3.0 RC released to solve Web coding problems

Ruby on Rails is a complete framework for developing database-driven network applications. Recently, the latest version of Ruby on Rails 3.0 RC has been officially released and is available for download. The blog of the Ruby on Rails

Basic concepts for developing Web applications with 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

Basic concepts for developing Web applications with Ruby on Rails

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

Ruby on Rails Tutorial Chapter II User Resources &mvc&rest

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

Tutorial on Ruby on Rails to implement the most basic user registration and login functions, rubyrails

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

An introductory tutorial on image processing in Ruby on Rails _ruby topics

" Converting images Perhaps one of your most common jobs is to convert images into different formats. Minimagick can simplify this process: Image.format "PNG" image.write "Public/uploads/test.png" You can also put multiple operations in the same module: Image.combine_options do |i| I.resize "2048x1536" i.flip i.rotate " -45" I.blur " 0x15" end image.write "public/uploads/" Blur.png " ![ Some Weird result] (blur.png) So let's take a look at how to relat

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