rails scaffold

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

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

MySQL Time Zone Display Time Zone Information mysql>showvariableslike'%time_zone%'; +------------------+--------+ |Variable_name|Value| +------------------+--------+ |system_time_zone|CST| |time_zone|SYSTEM| +------------------+--------+ 2rowsinset(0.00sec) Set Time Zone Information + Is China's time zone, UTC + 8. mysql>settime_zone='+8:00'; QueryOK,0rowsaffected(0.00sec) Time zone in Rails By default,

Common Commands for Rails: (Rails version:4.2.0)1. New Rails project, rails new project name –skip-bundle (this is to skip the bundle dependency check)2. New controller and Model: Rails generate (g) model name (singular) field: Properties ...

: Rails g scaffold book name: string count: integer price: integer remark: string Create a new database as follows: Rake db: migrate An error occurred. The system prompts that mysql cannot be connected. The mysql service is not in the listening status! Now let's start to install the mysql server: Sudo apt-get install mysql-server Next, the mysql client: Apt-get isntall mysql-client When installing the serve

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 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 flexibility allows you to use a very easy-to-use Hibernate without cumbersome configuration, Github and Rubygems's rich and varied

1.1 link_to General format: Link_to "XXXX", {hash}, {hash}The first is the link text, the second hash is the same as url_for, and the third hash is the tag added by the user in Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Link_to " Issues " , {: Controller => " Issue " ,: Action => " Index " },{: Title => " Issues " } %> Link_to_unless_current automatically identifies the current

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

File Upload (filecolumn) Web page: http://www.kanthak.net/opensource/file_column/ Installation: Http://opensvn.csie.org/rails_file_column/plugins/file_column Theme Support (Theme Support) Installation: Http://mattmccray.com/svn/rails/plugins/theme_support Dynamic tree-type structure (livetree) Web page: http://www.epiphyte.ca/code/live_tree.html Download: Http://www.epiphyte.ca/downloads/live_tree/live_tree-0.1.2.zip Internationalization Plugi

Scaffolding is a very easy method for rails. Some simple addition, deletion, modification, and query scaffolding can be implemented, saving unnecessary trouble. How can we use rails scaffolding? Let's explain it today. . Specify the port to start the rails ProjectCopy codeThe Code is as follows: ruby script/server webrick-p 30000. Create a projectCopy codeThe Cod

. Add page and process logic Generate pages, controllers, and model-level files through rails ' generate commands (individuals still like to create them manually, here for demonstration purposes) Rails Generate Scaffold Project name:string--orm=mongo_mapper Because we use MONGO as a database. Then, we need to change the model of ActiveRecord to Mo

") 8. Create a scaffold model (generate scaffold Post name: string title: string content: text) 9. Execute the rake task and synchronize the new data model to the database. rake db: migrate 10. Add the link to the scaffold on the homepage (modify it in views \ home \ index.html. erbPosts_path%> Pay attention to the posts_path in it, as agreed in writing 11. Open

Rails installs Rails on Ubuntu (RVM Ruby gem Bootstrap bootswatch)Rails 4.1.4Ruby 2.2.0 sudo apt-get install mysql-server mysql-client installing MySQL (setting up the MySQL user root password during installation) sudo apt-get install Libmysqlclient-dev (HTTPS://GITHUB.COM/BRIANMARIO/MYSQL2 see this section for Linux and other unixes) Mysql-u root-p (log

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

Ubuntu14.04 use rails to connect to the mysql database Rails comes with sqlite3 in all aspects, but the free version lacks a fatal function: Add a password! Although the third party has a compiled binary version of the encrypted version, let's not go to mysql first. It is very easy to install mysql In ubuntu. I will not talk about it first. I will first talk about how to change