old_contents: from google.appengine.ext import webapp
  import re
  
  # More info on custom Django template filters here:
  # https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#registering-custom-filters
  
  register = webapp.template.create_template_register()
  
  
  @register.filter
  def digits(value):
      return re.sub('[^0-9]', '', value)
  
  
  @register.filter
  def mul(value, arg):
      return value * arg
  
  
  @register.filter
  def yt_start(value):
      return value.replace("?t=", "?start=")
  
new_contents: from google.appengine.ext import webapp
  from helpers.youtube_video_helper import YouTubeVideoHelper
  import re
  
  # More info on custom Django template filters here:
  # https://docs.djangoproject.com/en/dev/howto/custom-template-tags/#registering-custom-filters
  
  register = webapp.template.create_template_register()
  
  
  @register.filter
  def digits(value):
      return re.sub('[^0-9]', '', value)
  
  
  @register.filter
  def mul(value, arg):
      return value * arg
  
  
  @register.filter
  def yt_start(value):
      if '?t=' in value:  # Treat ?t= the same as #t=
          value = value.replace('?t=', '#t=')
      if '#t=' in value:
          sp = value.split('#t=')
          video_id = sp[0]
          old_ts = sp[1]
          total_seconds = YouTubeVideoHelper.time_to_seconds(old_ts)
          value = '%s?start=%i' % (video_id, total_seconds)
  
      return value
  
subject: Fix video suggestion review showing wrong time