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require 'active_support/log_subscriber'
module ActionView
# = Action View Log Subscriber
#
# Provides functionality so that Rails can output logs from Action View.
class LogSubscriber < ActiveSupport::LogSubscriber
VIEWS_PATTERN = /^app\/views\//
def initialize
@root = nil
super
end
def render_template(event)
return unless logger.info?
message = " Rendered #{from_rails_root(event.payload[:identifier])}"
message << " within #{from_rails_root(event.payload[:layout])}" if event.payload[:layout]
message << " (#{event.duration.round(1)}ms)"
info(message)
end
alias :render_partial :render_template
alias :render_collection :render_template
def logger
ActionView::Base.logger
end
protected
EMPTY = ''
def from_rails_root(string)
string = string.sub(rails_root, EMPTY)
string.sub!(VIEWS_PATTERN, EMPTY)
string
end
def rails_root
@root ||= "#{Rails.root}/"
end
end
end
ActionView::LogSubscriber.attach_to :action_view
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