README.textile

Dragonfly MongoMapper Extensions

Install

This plugin makes Dragonfly works with MongoMapper like it works with ActiveRecord

Install:

script/plugin install git://[email protected]:tomasc/dragonfly_mongo_mapper_extensions.git

Configure:

config/initializers/dragonfly.rb

require 'dragonfly'
require 'dragonfly_mongo_mapper_extensions'
require 'rack/cache'

app = Dragonfly::App[:images]

# MongoMapper extensions
MongoMapper::Document::InstanceMethods.module_eval do
  def self.included(base)
    base.extend Dragonfly::MongoMapperExtensions::ClassMethods
    base.send :include, Dragonfly::MongoMapperExtensions::InstanceMethods
    base.register_dragonfly_app :image, Dragonfly::App[:images]
  end
end

# Dragonfly config
app.configure_with(Dragonfly::Config::RMagickImages)
app.configure_with(Dragonfly::Config::RailsDefaults)
app.datastore = Dragonfly::DataStorage::MongoGridFsStore.new( MongoMapper.connection.host, MongoMapper.database.name )

# Dragonfly Middleware
middleware = Rails.respond_to?(:application) ? Rails.application.middleware : ActionController::Dispatcher.middleware
middleware.insert_after Rack::Lock, Dragonfly::Middleware, :images

# Rack Cache
middleware.insert_before Dragonfly::Middleware, Rack::Cache, {
  :verbose     => true,
  :metastore   => "file:#{Rails.root}/tmp/dragonfly/cache/meta",
  :entitystore => "file:#{Rails.root}/tmp/dragonfly/cache/body"
}

Example model

class User
  include Mongoid::Document
  
  field :name
  field :email
  
  image_accessor :avatar
end

Notice you don’t need to declare avatar_uid field, the extension defines this field automatically.

based on Wilker Lúcio’s dragonfly_mongoid_extensions http://github.com/wilkerlucio/dragonfly_mongoid_extensions.git

Yoomee fork

Simple modification of rails/init.rb to check that Dragonfly::DataStorage::Base is available before requiring the plugin.