module Datadog::Contrib::ActionView::Instrumentation::TemplateRenderer::Rails31Plus

Legacy shared code for Rails >= 3.1 template rendering

Attributes

active_datadog_span[RW]

Public Instance Methods

datadog_render_template(template, layout_name) click to toggle source
# File lib/ddtrace/contrib/action_view/instrumentation/template_renderer.rb, line 114
def datadog_render_template(template, layout_name)
  # update the tracing context with computed values before the rendering
  template_name = template.try('identifier')
  template_name = Utils.normalize_template_name(template_name)
  layout = layout_name.try(:[], 'virtual_path') # Proc can be called without parameters since Rails 6

  if template_name
    active_datadog_span.resource = template_name
    active_datadog_span.set_tag(
      Ext::TAG_TEMPLATE_NAME,
      template_name
    )
  end

  if layout
    active_datadog_span.set_tag(
      Ext::TAG_LAYOUT,
      layout
    )
  end

  # Measure service stats
  Contrib::Analytics.set_measured(active_datadog_span)
end
render(*args, &block) click to toggle source
Calls superclass method
# File lib/ddtrace/contrib/action_view/instrumentation/template_renderer.rb, line 92
def render(*args, &block)
  datadog_tracer.trace(
    Ext::SPAN_RENDER_TEMPLATE,
    span_type: Datadog::Ext::HTTP::TEMPLATE
  ) do |span|
    with_datadog_span(span) { super(*args, &block) }
  end
end
render_template(*args) click to toggle source
Calls superclass method
# File lib/ddtrace/contrib/action_view/instrumentation/template_renderer.rb, line 101
def render_template(*args)
  begin
    template, layout_name = datadog_parse_args(*args)

    datadog_render_template(template, layout_name)
  rescue StandardError => e
    Datadog.logger.debug(e.message)
  end

  # execute the original function anyway
  super(*args)
end

Private Instance Methods

datadog_tracer() click to toggle source
# File lib/ddtrace/contrib/action_view/instrumentation/template_renderer.rb, line 143
def datadog_tracer
  Datadog.configuration[:action_view][:tracer]
end
with_datadog_span(span) { || ... } click to toggle source
# File lib/ddtrace/contrib/action_view/instrumentation/template_renderer.rb, line 147
def with_datadog_span(span)
  self.active_datadog_span = span
  yield
ensure
  self.active_datadog_span = nil
end