Modularizing Rails Apps with Cells

Modularizing Rails Apps With Cells Flavia Missi @flaviamissi

Installation $ gem install cells Gemfile gem 'cells'

group :test do gem " rspec-cells " end RSpec?

$ rails g cell tags display create app/cells/tags_cell.rb invoke erb create app/cells/tags/display.html.erb invoke rspec create spec/cells/tags_cell_spec.rb
$ rails g cell CellName actionName
Generator

Don't use erb? $ rails g cell Tags display -e haml

class TagsCell < Cell :: Rails def display render end end Generated code

What if I want to...

Cache class TagsCell < Cell :: Rails cache :display , :expires_in => 10 .minutes ...

It looks like a controller... And it is! Works exactly like one ;)

Views
Suports rendering other cells
Works like Rails default views
Are located in app/cells/your_cell_name/ folder

<%= render_cell :tags , :display , :msg => "Live long and prosper" %> Rendering Cells

What about the Models?
Models are not part of a cell
Cells are able to interact with a
model just like a controller does

Inheritance
Cells inheritance
Views inheritance

app
cells
abstract_post/
index.html.erb
show.html.erb
post/
index.html.erb
abstract_post_cell.rb
post_cell.rb
Inheritance

Some interesting links
http://cells.rubyforge.org/examples.html
http://nicksda.apotomo.de/2010/12/pragmatic-rails-thoughts-on-views-inheritance-view-inheritance-and-rails-304/
https://github.com/apotonick/cells

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Modularizing Rails Apps with Cells

by Flavia Missi on May 06, 2011

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