ruby on rails download

Ruby on Rails Twitter ApplicationProgramThe interface is very simple.Twitter is a simple rails application.The application interface for querying information is called as a GET request, while the application interface for modifying, creating, or deleting information is a POST request. The command itself is the URL read by your program. Twitter will respond in HTT

In Ruby rails, if you want to save a property (or read a property), and you want to do something else when you save the property (or read a property)You can use the method that overrides the property's setup or reader.For example, a models table has a field called name, and you want to manipulate the name.Method One,Class Model Method Two,Similar to method one, facilitates After_find and Before_save methods

in the article The rest API in Ruby on Rails uses an example of creating your own online translator tool based on cloud Platform + cloud services , using Ruby's net::http to initiate HTTP requests to access language translation services on IBM Bluemix , Tip: End offile reachedThe code is as follows:Auth = "C9819718-4660-441c-9df7-07398950ea44:quvrjpqwsgox"; surl = "https://" + auth + "@gateway. watsonplatfo

Notes for Ruby on Rails migration: rubyonrails migration Save schema. rb under version control.Use rake db: scheme: load to replace rake db: migrate to initialize an empty database.Use rake db: test: prepare to update the schema of the test database. Avoid setting default data in the table. Use the model layer instead. def amount self[:amount] or 0 end However, the use of self [: attr_name] is consider

Converting an array to activerecord::relation is a common requirement. For example, in my project, the backup_projects return value of the array form is obtained from the method. In order to sort and page out this collection, I need to convert it to activerecord::relation form. The conversion method is as follows: Project = Project.backup_projects project.map{|i| i.id} @projects = Project.where (: id = = Project) Now @projects is the activerecord::relation type. Original: https://aakashsharmaror

Rails is for Web projects and you have to think about the large amount of traffic, so let's take a look at how rails performs performance testing. 1. To perform performance testing, we first have to imitate a large number of data, we now know that in the test/fixtures/directory in the Yml file to add our test data, when the test run, the data will be loaded into the database. But a piece of two data can al

I mainly use two plug-ins: rinari and Yari. Rinari supports fast jump to multiple files in the rails project. In addition, it provides the grep tool, which I found useful. The shortcut keys are easy to remember. Yari provides an Emacs interface for the RI tool that comes with Ruby, which is compatible with the latest Ruby and easy to operate. You only need to u

This article will focus on how to build a ROR development environment under different operating systems and, at the end, detail how to install and configure the MySQL database under Windows operating systems. Construction of development environment under Windows system This article describes how to build a ROR development environment under Windows operating systems. 1. Remote Installation A, Step 1: Download and install the

Will_paginate (http://blog.csdn.net/kunshan_shenbin/article/details/4182610 ), Now we plan to integrate it into rails3. In addition, the Code also includes jqgrid integration. 1. Open gemfile and modify it as follows: gem 'rails', '3.2.13'#gem 'sqlite3'gem 'mysql2'gem 'thin'gem 'will_paginate', '~> 3.0'gem 'jquery-ui-rails' 2. Execute rails g controller Report

1, Aliyun a key to install the Web-wide environment Download one-click to install Web full-environment Sh.zip compression packUpload to the server, decompression, execute the script, detailed steps described here $ mv sh.zip/home/tmp/ cd/home/tmp $ unzip sh.zip $ chmod-r 777 Sh cd SH # arbitrary selection of a method to execute a script # method One $./install.sh # Method Two $/install_nginx_xxx.sh $./install_mysql_xxx.sh 2, install RVM

Ruby rails installation process description 1. create a user 2. assign permissions first add a user group: groupadd humou Add User, set the main directory, shell path useradd-g humou-d/home/humou-s/bin/bash-m humoushell path is not set, this user will not be able to log on or directly: useradd-g humou set password passwd humou delete a user: userdel humou corresponding user group will also be deleted to vi

Ruby on Rails internationalization, rubyrails Language-related settings and strings should not be used in views, models, and controllers. The text should be moved to the language file under config/locales. When the tags of the ActiveRecord model need to be translated, the scope of activerecord is used: en: activerecord: models: user: Member attributes: user: name: "Full name" Then User. model_name.

Explain how to use Cucumber in Ruby on Rails, railscucumber Use the @ wip label to mark your unfinished scenarios. These scenarios are not considered and are not marked as test failures. When an unfinished scenario is completed and the function test passes, the @ wip tag should be removed to add the scenario to the test suite.Configure your default configuration file to exclude the scenes marked as @ javasc

ActiveResource in Ruby on Rails When an HTTP response is in a different format (XML and JSON) than an existing one, you need to parse some additional formats to create a common format and use it in the category. The following methods should be implemented in the conventional format: extension, mime_type,Encode and decode. Module ActiveResource module Formats module Extend module CSVFormat extend self def e

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

At the beginning of 2006, I received a legacy project assigned by the company, asking me to be responsible for a server end of a C/S-based system. In fact, the system is based on the HTTP protocol, because the client's colleaguesI don't know much about server-side programming. Although I use PHP to be familiar with C ++, I am very familiar with it, but it is too slow to implement more functions and higher performance. The project is very suddenThis is because this colleague has more things to do

To have the zh-CN.yml file, this can be downloaded on GitHub, someone else made Gem for i18n Installation Config. i18n. default_locale = "ZH-CN" Add Zh-CN: Activerecord: Attributes: Product: Title: "title" Description: "Description" Image_url: "image"Because I guess it is related to the marked red below, there is a corresponding messages, but there is no attributes. After querying the information, I found that it is indeed the problem. The above product is my model, title is the name o

1. Install Curl:GPG--keyserver hkp://keys.gnupg.net--recv-keys d39dc0e3Curl-l Https://get.rvm.io | Bash-s StableSOURCE ~/.RVM/SCRIPTS/RVMCheck installation CompleteRvm-v2. Install RubyRVM Install 2.1.5RVM 2.1.5--defaultSwitch gem Source: Gem source-r https://rubygems.org/gem source-a https://ruby.taobao.org3. Install RailsGem Install RailsTest installation CompleteRails-v4. Install other, install Nodejs, Libmysqlclient-dev and so on, prevent the back run errorsudo apt-get install Nodejssudo apt-

to build a class method for the same purpose and return a Activerecord::relation object. You can also define a more streamlined scope. Class User Pay attention to the behavior of the Update_attribute method. It does not run model validation (unlike update_attributes) and may screw up the model state. Use a user-friendly web site. Displays descriptive model attributes, not just IDs, on the Web site.There are more than one way to achieve this: The To_param method of the overridd

In the previous essay Ruby on Rails development from scratch (Windows) (ii)-Create project and first Hello World, we described how to use instantrails to create a project and write a simple HelloWorld page, Today on the basis of the last, write a simple page jump. 1. Change the contents of the Say_controller.rb file in the Appcontrollers directory to the following: Class Saycontroller We see that compa