text: import base64
  
  from django.db import models
  from django.core.files.base import ContentFile
  from django.conf import settings
  
  import requests
  
  from url_store.models import URL
  
  def download_file_name(instance, filename):
      return "/".join([
          "screenshots",
          instance.url.base_file_name()
      ]) + '.png'
  
  
  class Screenshot(models.Model):
      url = models.ForeignKey(URL, max_length=800)
      image = models.ImageField(upload_to=download_file_name)
  
      def take_screenshot(self):
          url = requests.get(self.url.url).url
          br = settings.WEBDRIVER()
          br.get(self.url.url)
          ss =  br.get_screenshot_as_base64()
          br.quit()
          self.image.save(
              self.url.base_file_name(),
              ContentFile(base64.decodestring(ss))
          )
  