Class: ConcertoEmergency::Engine

Inherits:
Rails::Engine
  • Object
show all
Defined in:
lib/concerto_emergency/engine.rb

Instance Method Summary collapse

Instance Method Details

#plugin_info(plugin_info_class) ⇒ Object 



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# File 'lib/concerto_emergency/engine.rb', line 8

def plugin_info(plugin_info_class)
  @plugin_info ||= plugin_info_class.new do

    # Add configuration options under Concerto Admin Settings
    add_config("emergency_template", "Default Template",
      :value_type => "string",
      :category => "Emergency Alerts",
      :description => "Template used to display emergency alerts")

    add_config("emergency_feed", "Concerto",
      :value_type => "string",
      :category => "Emergency Alerts",
      :description => "Feed monitored for emergency alert content")

    init do 
      Rails.logger.info "ConcertoEmergencyBroadcast: Initialization code is running"
    end

    # Effective template hook 
    add_controller_hook "Screen", :frontend_display, :before do

      emergency_feed = Feed.find_by_name(ConcertoConfig[:emergency_feed])
      emergency_active = emergency_feed.submissions.approved.active.includes(:content).where("kind_id != 4").present?

      # Check for emergency content 
      if not emergency_feed.nil? and emergency_active
        # swap template to emergency template if emergency content is present
        emergency_template = Template.find_by_name(ConcertoConfig[:emergency_template])
        if not emergency_template.nil?
          self.template = emergency_template
        end
      end

    end

    # Controller hook for frontend/contents_controller
    add_controller_hook "Frontend::ContentsController", :index, :after do

      emergency_feed = Feed.find_by_name(ConcertoConfig[:emergency_feed])
      emergency_active = emergency_feed.submissions.approved.active.includes(:content).where("kind_id != 4").present?
      
      if not emergency_feed.nil?
        emergency_submissions = emergency_feed.submissions.approved.active.includes(:content).where("kind_id = ?", @field.kind_id)
        emergency_contents = Array.new()
        emergency_submissions.each { |submission| emergency_contents << Content.find(submission.content_id) }
    
        if emergency_active

          # Change template identifier so the screen knows a template 
          #  is used for emergency alerts
          emergency_template = Template.find_by_name(ConcertoConfig[:emergency_template])
          if not emergency_template.nil?
            @screen.template = emergency_template
          end
          
          # Content supplied to screen is replaced with emergency contents
          @content = emergency_contents
        end
      else
        Rails.logger.error("could not find emergency feed #{ConcertoConfig[:emergency_feed]}")
      end
    end

  end
end