class ActionView::LogSubscriber

Action View Log Subscriber

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

Constants

EMPTY
VIEWS_PATTERN

Public Class Methods

new() click to toggle source
Calls superclass method
# File lib/action_view/log_subscriber.rb, line 11
def initialize
  @root = nil
  super
end

Public Instance Methods

logger() click to toggle source
# File lib/action_view/log_subscriber.rb, line 51
def logger
  ActionView::Base.logger
end
render_collection(event) click to toggle source
# File lib/action_view/log_subscriber.rb, line 34
def render_collection(event)
  identifier = event.payload[:identifier] || "templates"

  info do
    "  Rendered collection of #{from_rails_root(identifier)}" \
    " #{render_count(event.payload)} (#{event.duration.round(1)}ms)"
  end
end
render_partial(event) click to toggle source
# File lib/action_view/log_subscriber.rb, line 24
def render_partial(event)
  info do
    message = "  Rendered #{from_rails_root(event.payload[:identifier])}".dup
    message << " within #{from_rails_root(event.payload[:layout])}" if event.payload[:layout]
    message << " (#{event.duration.round(1)}ms)"
    message << " #{cache_message(event.payload)}" unless event.payload[:cache_hit].nil?
    message
  end
end
render_template(event) click to toggle source
# File lib/action_view/log_subscriber.rb, line 16
def render_template(event)
  info do
    message = "  Rendered #{from_rails_root(event.payload[:identifier])}".dup
    message << " within #{from_rails_root(event.payload[:layout])}" if event.payload[:layout]
    message << " (#{event.duration.round(1)}ms)"
  end
end
start(name, id, payload) click to toggle source
Calls superclass method
# File lib/action_view/log_subscriber.rb, line 43
def start(name, id, payload)
  if name == "render_template.action_view"
    log_rendering_start(payload)
  end

  super
end

Private Instance Methods

cache_message(payload) click to toggle source
# File lib/action_view/log_subscriber.rb, line 76
def cache_message(payload) # :doc:
  case payload[:cache_hit]
  when :hit
    "[cache hit]"
  when :miss
    "[cache miss]"
  end
end
from_rails_root(string) click to toggle source
# File lib/action_view/log_subscriber.rb, line 58
def from_rails_root(string) # :doc:
  string = string.sub(rails_root, EMPTY)
  string.sub!(VIEWS_PATTERN, EMPTY)
  string
end
log_rendering_start(payload) click to toggle source
# File lib/action_view/log_subscriber.rb, line 85
def log_rendering_start(payload)
  info do
    message = "  Rendering #{from_rails_root(payload[:identifier])}".dup
    message << " within #{from_rails_root(payload[:layout])}" if payload[:layout]
    message
  end
end
rails_root() click to toggle source
# File lib/action_view/log_subscriber.rb, line 64
def rails_root # :doc:
  @root ||= "#{Rails.root}/"
end
render_count(payload) click to toggle source
# File lib/action_view/log_subscriber.rb, line 68
def render_count(payload) # :doc:
  if payload[:cache_hits]
    "[#{payload[:cache_hits]} / #{payload[:count]} cache hits]"
  else
    "[#{payload[:count]} times]"
  end
end