Work around Errno::ECONNREFUSED when SOLR is not running

activerecord.rb

=begin

1) include following ruby file from your config/application.rb like so:

    require File.expand_path('../../lib/ext/active_record', __FILE__)

2) add auto_commit_after_request: false to your config/sunspot.yml

    development:
      solr:
      ...
    auto_commit_after_request: false

=end




class SolrWrapRailtie < Rails::Railtie
  initializer 'after_sunspot', after: 'sunspot_rails.init' do
    ActiveSupport.on_load(:active_record) do
      include(ThrowAwaySolrConnectionErrors)
    end
  end
end


module ThrowAwaySolrConnectionErrors
  class <<self
    def included(base)
      base.module_eval do
        class << self
          alias_method(:original_searchable, :searchable)
        end
        extend(ClassMethods)
      end
    end
  end

  module ClassMethods
    def searchable *a, &block
      original_searchable(*a, &block)

      unless respond_to? :original_perform_index_tasks 
        alias_method(
          :original_perform_index_tasks, 
          :perform_index_tasks
        )
        alias_method(
          :original_remove_from_index, 
          :remove_from_index
        )
      end

      define_method :perform_index_tasks do
        begin
          original_perform_index_tasks
        rescue Errno::ECONNREFUSED => e
          if Rails.env.development?
            Rails.logger.warn(e)
          else
            Rollbar.error(e)
          end
        end
      end

      define_method :remove_from_index do
        begin
          original_remove_from_index
        rescue Errno::ECONNREFUSED => e
          if Rails.env.development?
            Rails.logger.warn(e)
          else
            Rollbar.error(e)
          end
        end
      end

    end
  end
end