Action View Log Subscriber

Provides functionality so that Rails can output logs from Action View.

Methods

Constants

VIEWS_PATTERN = /^app\/views\//

Class Public methods

attach_to(*)

📝 Source code 
# File actionview/lib/action_view/log_subscriber.rb, line 105
    def self.attach_to(*)
      ActiveSupport::Notifications.subscribe("render_template.action_view", ActionView::LogSubscriber::Start.new)
      ActiveSupport::Notifications.subscribe("render_layout.action_view", ActionView::LogSubscriber::Start.new)

      super
    end
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new()

📝 Source code 
# File actionview/lib/action_view/log_subscriber.rb, line 12
    def initialize
      @root = nil
      super
    end
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Instance Public methods

render_collection(event)

📝 Source code 
# File actionview/lib/action_view/log_subscriber.rb, line 45
    def render_collection(event)
      identifier = event.payload[:identifier] || "templates"

      debug do
        message = +"  Rendered collection of #{from_rails_root(identifier)}"
        message << " within #{from_rails_root(event.payload[:layout])}" if event.payload[:layout]
        message << " #{render_count(event.payload)} (Duration: #{event.duration.round(1)}ms | GC: #{event.gc_time.round(1)}ms)"
        message
      end
    end
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render_layout(event)

📝 Source code 
# File actionview/lib/action_view/log_subscriber.rb, line 37
    def render_layout(event)
      info do
        message = +"  Rendered layout #{from_rails_root(event.payload[:identifier])}"
        message << " (Duration: #{event.duration.round(1)}ms | GC: #{event.gc_time.round(1)}ms)"
      end
    end
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render_partial(event)

📝 Source code 
# File actionview/lib/action_view/log_subscriber.rb, line 26
    def render_partial(event)
      debug do
        message = +"  Rendered #{from_rails_root(event.payload[:identifier])}"
        message << " within #{from_rails_root(event.payload[:layout])}" if event.payload[:layout]
        message << " (Duration: #{event.duration.round(1)}ms | GC: #{event.gc_time.round(1)}ms)"
        message << " #{cache_message(event.payload)}" unless event.payload[:cache_hit].nil?
        message
      end
    end
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render_template(event)

📝 Source code 
# File actionview/lib/action_view/log_subscriber.rb, line 17
    def render_template(event)
      info do
        message = +"  Rendered #{from_rails_root(event.payload[:identifier])}"
        message << " within #{from_rails_root(event.payload[:layout])}" if event.payload[:layout]
        message << " (Duration: #{event.duration.round(1)}ms | GC: #{event.gc_time.round(1)}ms)"
      end
    end
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Instance Private methods

cache_message(payload)

📝 Source code 
# File actionview/lib/action_view/log_subscriber.rb, line 121
    def cache_message(payload) # :doc:
      case payload[:cache_hit]
      when :hit
        "[cache hit]"
      when :miss
        "[cache miss]"
      end
    end
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render_count(payload)

📝 Source code 
# File actionview/lib/action_view/log_subscriber.rb, line 113
    def render_count(payload) # :doc:
      if payload[:cache_hits]
        "[#{payload[:cache_hits]} / #{payload[:count]} cache hits]"
      else
        "[#{payload[:count]} times]"
      end
    end
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