heroku rails

Rails comes with sqlite3 in every way, but the free version lacks a deadly feature: add password! Although the third party has compiled the two-in-plate encryption version, but we do not toss the bird; go directly to MySQL.Ubuntu installation MySQL is very simple, do not talk first, first of all, how to change rails to MySQL driver, with one of the following command is sufficient:Rails new xxx-d MySQLBecaus

original address: http://www.blogjava.net/pengpenglin/archive/2011/08/29/357506.html 1. Basics========================================================== =====Generators in rails 3:Http://railscasts.com/episodes/216-generators-in-rails-3Validations in rails 3:Http://railscasts.com/episodes/211-validations-in-rails-3How

Fence rails Burch, kolstad, and schrijvers Farmer John is trying to erect a fence und part of his field. he has decided on the shape of the fence and has even already installed the posts, but he's having a problem with the rails. the local lumber store has dropped off boards of varying lengths; Farmer John must create as much of the rails he needs from the su

Save the password and API certificate used by your program in a custom configuration file. I use a yaml file and use a format similar to database. yml. Use constants when necessary. Do not repeat strings such as customer service email addresses, but store them in constants (they can be saved in environment. RB or custom configuration file), and then use this constant throughout the program. Use UTC time whenever possible, which makes the application look more consistent. (However, the timezone

As a good programmer, you should be clear about the benefits of the Ruby on Rails development framework. Here we will introduce some tips for installing Ruby on Rails locally. Many documents describe how to use the gem (one-click Ruby installer is already included, and you can use the gem after installation) for Remote Installation. If the network is poor, the installation will fail. I can see an article on

When we use rails generate scaffold to generate MVC, rails will automatically generate a series of files for us, including how to display the Model View in JSON. By default, your system is a crud system, but we know that restful is not a crud system. Exposing the model directly is not a good choice. Rabl is a DSL that allows you to easily customize the display information of the generated object GEM: https

I want to learn more about MongoDB recently, but I used Ror a long time ago, and I just had a chance to pick it up again. The following is the process of creating the first project. References: 1. rails 3-getting started 2. MongoDB and MongoDB mapper (you may need to flip the wall) 3. Getting started with Vmware cloudfoundry, MongoDB and rails (may need to go through the wall) I. CreateProgramFram

1, Cloud development environment, CLOUD9 (https://ide.c9.io/). The development environment is pre-installed with most of the software required for rails development, including Ruby, RubyGems, and git, and requires you to install rails yourself.(1) Installing rails: $gem Install rails-v 4.1.6(2) Create project: $

1. Goal: Mastering MVC and Rest, generators, migrations, routes, embedded RubyThis book deals with the Rails,ruby language, the test framework (minitest) that rails uses by default, the Unix command line, HTML,CSS, a small amount of javascript, and a bit of SQL.2. Demo Application:Hello_app (v. 1.3)Toy_app (2nd Chapter)Sample_app (chapters 3rd through 12th)3. The key to the success of Ruby on

The native Nginx server does not meet the requirements of rails deployment and therefore requires the use of passenger-rewritten nginx. Ps: Rails accepts the requested model as a process that processes a request, a single process is less efficient, and typically requires multiple processes to be opened Passenger is the Rails app servic

Ruby on Rails is famous for its elegant MVC Architecture, which is so attractive and beautiful, while CakePHP is one of the common frameworks in PHP development. If you don't want to be bound to the traditional PHP brick-and-mortar development, you can try to switch to the MVC Architecture, but the performance and deployment problems of Rails have been worrying. The topics of comparison between the two have

Realize Patient Information xform Brief introduction Part 1th of this article series designs a WEB application that allows patients to enter information in a doctor's office. discussed how to create such an application using XForms, DB2 PureXML, and Ruby on Rails, and experimented with the use of these technologies. This is the 2nd part of the article, and we're starting to implement the application. We'll design the first XForm and build Ruby on

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

Troubleshoot common performance issues Introduction: ActiveRecord is an excellent persistence framework, but because the framework often hides some of the low-level details, it is easy to generate performance problems. Through this article, we understand some of the most common problems and how to solve them. Ruby on Rails programming often spoils you. This evolving framework frees you from the tedium of other frameworks. You can express your intent

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 development team also revealed that the development of Ruby on Rails 3.0 will be accel

This part is about the model M in MVC.ActiveRecord is the core component of the database operation of rails, using the standard ORM model, mapping the tables of the database to the appropriate classes, matching the row records to the specific instance objects, and the fields corresponding to the properties of the instance objects.The ORM model is the high-level encapsulation of the database, which allows us to manipulate the database without using com

How to configure Ruby on Rails in ubuntu10.04 [from other blogs, refer to the first two webpages] Http://www.baoyalv.info/blog/panjj/Rails/2010/05/01/76 (basic steps) Http://hi.baidu.com/%BA%C3%BA%C3%BC%D3%BC%D3%D3%CD/blog/item/4357193da3dda20bbaa167f9.html (basic steps, database) /* Note: One of the most important steps is to install ruby-full instead of Ruby. Otherwise, the package is missing and re

Next, let's get started with Ruby on Rails (ROR ).First, we need to quickly configure the development environment of Ruby on Rails.1. Download InstantRails-2.0-win.zipCan go to official download, http://rubyforge.org/frs? Group_id = 904You can also go to/download/tools/InstantRails-2.0-win.zip to change/Download/tools/InstantRails-2.0-win.7z downloading2. After downloading, decompress the package.If you dow

Ubuntu14.04 use rails to connect to the mysql database and ubuntu14.04rails 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

1. prerequesite assume that you have installed jruby and JDK 1.7 is preferred. 2. Install rails to install rails4.0.0: C:\>jruby -S gem install rails -V View the installed rails version: C:\>jruby -S rails -vRails 4.0.0 3. Create a new rails apps C:\>jruby -S