Add Resque Support

* For it to work, it depends on Redis server is running.
- To install: '$ apt-get install redis-server'
- To execute: '$ redis-server'

* To add new worker's tasks:

- Create a new class, with the template below:
class SampleWorker
@queue = :sample_work
def self.perform(params)
end
end

- Enqueue new jobs:
Resque.enqueue(SampleWorker, params)

* To monitor jobs' status, access: '<rails_server>/resque'

Gemfile

@@ -95,3 +95,6 @@ gem 'bullet'
 
 # docs
 gem 'rdoc'
+
+# Resque
+gem 'resque', require: 'resque/server'

config/initializers/resque.rb

+require 'yaml'
+
+def set_resque_config(host)
+  Resque.redis = host
+end
+
+if Rails.env.production?
+  set_orientdb_config ENV['PORTALMEC_RESQUE_HOST']
+else
+  # connect to Resque/Redis server
+  resque_configs = YAML.load_file Rails.root.join('config').to_s.concat('/resque.yml')
+  config = resque_configs.fetch(Rails.env)
+
+  set_resque_config config['host']
+end

config/resque.yml

+development: &development
+  host: localhost
+  port: 2480
+
+test:
+  host: mecdb1.c3sl.ufpr.br
+  port: 2480

config/routes.rb

@@ -32,4 +32,6 @@ Rails.application.routes.draw do
   get '/contact' => 'welcome#contact', as: 'contact'
   get '/complaint' => 'welcome#complaint', as: 'complaint'
   get '/search' => 'search/solr#search', as: 'search'
+
+  mount Resque::Server, :at => "/resque"
 end

lib/tasks/resque.rake

+require "resque/tasks"
+
+task "resque:setup" => :environment