![]() 2.2.5 Action MailerĪction Mailer is a framework for building e-mail services. 2.2.4 Action DispatchĪction Dispatch handles routing of web requests and dispatches them as you want, either to your application or any other Rack application. Action View manages rendering templates, including nested and partial templates, and includes built-in AJAX support. It can create both HTML and XML output by default. 2.2.3 Action ViewĪction View manages the views of your Rails application. Services provided by Action Controller include session management, template rendering, and redirect management. The Action Controller framework processes incoming requests to a Rails application, extracts parameters, and dispatches them to the intended action. 2.2.2 Action ControllerĪction Controller is the component that manages the controllers in a Rails application. Rails ships as many individual components.Īction Pack is a single gem that contains Action Controller, Action View and Action Dispatch. In Rails, controllers are responsible for processing the incoming requests from the web browser, interrogating the models for data, and passing that data on to the views for presentation. 2.1.3 ControllersĬontrollers provide the “glue” between models and views. Views handle the job of providing data to the web browser or other tool that is used to make requests from your application. In Rails, views are often HTML files with embedded Ruby code that perform tasks related solely to the presentation of the data. Views represent the user interface of your application. The bulk of your application’s business logic will be concentrated in the models. In most cases, one table in your database will correspond to one model in your application. In the case of Rails, models are primarily used for managing the rules of interaction with a corresponding database table. Making it clear where different types of code belong for easier maintenanceĪ model represents the information (data) of the application and the rules to manipulate that data.Isolation of business logic from the user interface. ![]() REST is the best pattern for web applications – organizing your application around resources and standard HTTP verbs is the fastest way to go.Īt the core of Rails is the Model, View, Controller architecture, usually just called MVC.Convention Over Configuration – means that Rails makes assumptions about what you want to do and how you’re going to do it, rather than requiring you to specify every little thing through endless configuration files.DRY – “Don’t Repeat Yourself” – suggests that writing the same code over and over again is a bad thing.The Rails philosophy includes several guiding principles: If you persist in bringing old habits from other languages to your Rails development, and trying to use patterns you learned elsewhere, you may have a less happy experience. If you learn “The Rails Way” you’ll probably discover a tremendous increase in productivity. It makes the assumption that there is a “best” way to do things, and it’s designed to encourage that way – and in some cases to discourage alternatives. Experienced Rails developers also report that it makes web application development more fun. It allows you to write less code while accomplishing more than many other languages and frameworks. It is designed to make programming web applications easier by making assumptions about what every developer needs to get started. Rails is a web application development framework written in the Ruby language. There are some good free resources on the internet for learning Ruby, including: If you have no prior experience with Ruby, you will find a very steep learning curve diving straight into Rails. Rails is a web application framework running on the Ruby programming language. A working installation of the SQLite3 Database. ![]() ![]() On the 1.9 front, Ruby 1.9.1 is not usable because it outright segfaults on Rails 3.0, so if you want to use Rails 3 with 1.9.x jump on 1.9.2 for smooth sailing. Ruby Enterprise Edition have these fixed since release 1.8.7-2010.02 though. Note that Ruby 1.8.7 p248 and p249 have marshaling bugs that crash Rails 3.0.
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