Action View Log Subscriber

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

Methods

Constants

EMPTY = ""
 
VIEWS_PATTERN = /^app\/views\//
 

Class Public methods

new()

Source: 

# File actionview/lib/action_view/log_subscriber.rb, line 12
def initialize
  @root = nil
  super
end

Instance Public methods

logger()

Source: 

# File actionview/lib/action_view/log_subscriber.rb, line 52
def logger
  ActionView::Base.logger
end

render_collection(event)

Source: 

# File actionview/lib/action_view/log_subscriber.rb, line 35
def render_collection(event)
  identifier = event.payload[:identifier] || "templates"

  info do
    "  Rendered collection of #{from_rails_root(identifier)}" \
    " #{render_count(event.payload)} (Duration: #{event.duration.round(1)}ms | Allocations: #{event.allocations})"
  end
end

render_partial(event)

Source: 

# File actionview/lib/action_view/log_subscriber.rb, line 25
def render_partial(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 | Allocations: #{event.allocations})"
    message << " #{cache_message(event.payload)}" unless event.payload[:cache_hit].nil?
    message
  end
end

render_template(event)

Source: 

# 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 | Allocations: #{event.allocations})"
  end
end

start(name, id, payload)

Source: 

# File actionview/lib/action_view/log_subscriber.rb, line 44
def start(name, id, payload)
  if name == "render_template.action_view"
    log_rendering_start(payload)
  end

  super
end

Instance Private methods

cache_message(payload)

Source: 

# File actionview/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)

Source: 

# File actionview/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

rails_root()

Source: 

# File actionview/lib/action_view/log_subscriber.rb, line 64
def rails_root # :doc:
  @root ||= "#{Rails.root}/"
end

render_count(payload)

Source: 

# File actionview/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