https://github.com/indirect/simple_presenter

presenter layer for rails
https://github.com/indirect/simple_presenter

Last synced: 26 days ago
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presenter layer for rails

• Host: GitHub
• URL: https://github.com/indirect/simple_presenter
• Owner: indirect
• Created: 2009-02-28T07:43:53.000Z (over 15 years ago)
• Default Branch: main
• Last Pushed: 2020-06-27T06:53:56.000Z (over 4 years ago)
• Last Synced: 2024-05-01T22:07:33.075Z (6 months ago)
• Language: Ruby
• Homepage:
• Size: 14.6 KB
• Stars: 7
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
SimplePresenter

===============

So code that generates format-specific representations of data is supposedly a View. In Rails, that code is sometimes inexplicably inserted into the Model, which is supposed to know nothing about formats or presentations of the data they represent.

SimplePresenter is inspired by [simply\_presentable](http://simply_presentable.richcollins.net), which is an implementation of the [Presentation Model](http://martinfowler.com/eaaDev/PresentationModel.html). There are [many](http://blog.jayfields.com/2007/03/rails-presenter-pattern.html) [other](http://gilesbowkett.blogspot.com/2007/10/my-version-of-rails-presenters.html) [presenter](http://jamesgolick.com/2008/7/28/introducing-activepresenter-the-presenter-library-you-already-know) libraries for Rails, but they are all based on the [Supervising Controller](http://martinfowler.com/eaaDev/SupervisingPresenter.html) pattern, so I had to write my own. SimplePresenter is just an easy way to get all that view code out of your model and into a separate (and testable) file, without requiring you to write two pages of ruby code inside a single erb tag. Models with view code in them make Martin Fowler cry. Don't make Martin Fowler cry. Use SimplePresenter.

Usage

=====

In `app/presenter/foo_presenter.rb`:

    class FooPresenter < SimplePresenter

      def to_json

        {:id => id, :name => name}.to_json

      end

    end

In `app/controller/foo_controller.rb`:

    class FooController < ApplicationController

      def show

        @foo = Foo.find(params[:id])

        render :json => present(@foo)

      end

    end

`render :json => foo` implicitly calls to\_json on `foo`.

http://github.com/indirect/simple_presenter

Copyright (c) 2009 Andre Arko, released under the MIT license