Minimal decoration of Ruby objects using a decorate method.
The idea is to create the thinnest possible layer of abstraction between presentational methods and 'work' methods.
I was inspired by gems such as Draper, but felt like they were doing too much.
Run gem install mini_decorator or add mini_decorator to your Gemfile.
gem 'mini_decorator'require 'mini_decorator'
#
# This is where our presentational methods live
#
class PersonDecorator
def name(person)
"#{person.first_name} #{person.last_name}"
end
end
#
# Imagine that this is an ActiveRecord model or something...
#
class Person
include MiniDecorator.new(PersonDecorator.new)
def first_name
'John'
end
def last_name
'Smith'
end
end
person = Person.new
person.decorate(:name)
# => "John Smith"
#
# If a decorator isn't defined, MiniDecorator attempts to call the method on the model directly
#
person.decorate(:first_name)
# => "John"
#
# If the given item isn't a decorator or method, a NoMethodError is raised
#
person.decorate(:nonexistant)
# => NoMethodError raisedMIT