rails for dummies

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 Ruby on Rails. If you want to learn about Rails, there are articles and blogs t

After reading this article, you should be familiar with the following: All the obvious countermeasures. The concept of a session in rails, where the content is stored, common means of attack. A large number of allocation issues in rails. There are a few things that you have to focus on when providing a management interface. How to manage Users: Login, exit, attack methods at all levels. Common method

Algorithm competition entry classic 6.1.2 stack and queue-rails, algorithm competition entry classic rails There is a railway station in a city, as shown in. There are n trains entering the station from the direction, numbered 1 ~ N. Your task is to let them enter the Track B in a specific order and exit the station. In order to restructure the carriage, you can use the transfer station C. This is a station

=${zlib-dir}/include--with-zlib-lib--without-zli B-lib=${zlib-dir}/lib--enable-cross-build--disable-cross-build to the why this extension failed to compile, ple ASE Check the Mkmf.log which can be found here:/VAR/LIB/GEMS/2.3.0/EXTENSIONS/X86_64-LINUX/2.3.0/NOKOGIRI-1.8.2/MKMF.L OG extconf failed, exit code 1 GEM files would remain installed in/var/lib/gems/2.3.0/gems/nokogiri-1.8.2 for inspection . Results logged To/var/lib/gems/2.3.0/extensions/x86_64-linux/2.3.0/nokogiri-1.8.2/gem_make.out

A solution for modifying operation conflicts in Rails applications at the same time. A rails Solution Operating conflicts in Rails Applications are a common problem. Rails provides a simple and effective solution. For example, there is a shop module in our system. An important part of the store is the management of pro

Rails implements field encryption storage and rails field Encryption Solution Data is encrypted before being stored in the database.The KEY is used for decryption after reading. Implementation ActiveSupport: MessageEncryptor is a class implemented by Rails Based on openssl encapsulation. It can be used to encrypt and decrypt an object. For example: salt = SecureR

New rails4.2.6 project, project can not be accessed through intranet ip:3000, only localhost:3000 access since Rails4.2 is bound to 0.0.0.0,rails 4.2 by default, localhost is bound by default. The default boot console information is as follows: Rails 4.2.2 Application starting in development on http://localhost:3000 The following modifications are made via IP access:The CONFIG/BOOT.RB directory under en

The following method defines constants and global variables in Rails. If you want to access any environment (development, testing, or product), it is defined in config/environment. rb. For example: BOOLEN_TRUE = 1 If you want your global variables to be determined by the Environment, configure /Config/environments/development. rb /Config/environments/test. rb /Config/environments/production. rb Note,1> constants and global variables must all be in up

1. Apps created with the rails new command will not succeed in automating the bundle install, and depending on the error prompt, it may be the security of the certificate that is being wall and HTTPS. As a development environment, choose to bypass the method, in the directory C:\ProgramData build GEMRC file, inside only one line of code can:: ssl_verify_mode:02. Run the command gem sources-a http://gems.ruby-china.org to add the Ruby-china gem Source

This chapter launches the introduction of model: including check and delete operation. And then the above section, [Ruby on Rails] and I learned the HelloWorldCreating models using commands to create modelsCreate a table post, default comes with two field title:string, Content:text, use the singular post instead of the plural in the model by convention postsCD Blograils G model post title:string Content:textOutput: Invoke Active_record crea

Brief introduction Today's applications need to interoperate not only with browser-based clients, but with other applications as well. For interoperability, Web applications typically provide a Web service API. The Web services API provides remote access to applications through a network, such as the Internet. Until recently, the Web services API had also been integrated with heavy, complex, SOAP-based Web services, which had little merit and would take a long time to implement. The

Uva514 rails (Rails) Question: railsLink: uva514Description:There is a railway station in a city, with N trains entering the station from the direction, numbered 1-N in the order of arrival. your task is to determine whether you can allow them to enter the Track B in a specific order and enter the station. For example, the order of the output stack (5 4 1 2 3) is impossible, but (5 4 3 2 1) is possible.Ques

The Run-time configuration of rails is controlled by the files in the Config directory. 1. Runtime Environment (Runtime environment) When developers write code, the requirements are many and varied. In development you may need a lot of logins to load the changed code. When testing, you need to separate the systems from each other. Before publishing, you may need to optimize performance and keep users away from bugs. To support all this, rials has t

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 brings high development efficiency to Web developers. The flexibility of ActiveRecord allows y

Fast Rich Client Rails Development with Webpack and the ES6 Transpiler There's a better way to bring the JavaScript ecosystem into Rails. Do you have: Wondering if there's a better way to use the modern JavaScript client framework under existing Ruby on Rails projects? How do you integrate JavaScript libraries and examples that are packaged as "mod

The previous 30 articles are based on the contents of the book written, rarely have their own understanding, from this beginning to understand some of the internal rails mechanism, so understand more things, less code, this time we look at the Rails directory structure. About the directory structure of rails, we should have some understanding of the previous exe

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 started. After learning about instantrails, finally, we set up the Ruby on Rails Developm

Learning and developing the Ruby on Rails application process is done on the local computer. That is, you need to create a Rails project on your local computer, run it, and then learn or do real development. Either way, you can install all the tools for the rails project directly on your local computer, and then run the Rails