old_contents: from django.conf import settings
  from django.urls import reverse
  from rest_framework import serializers
  
  from falmer.content.models import StaffMemberSnippet
  from falmer.matte.models import MatteImage
  
  
  
  def generate_image_url(image, filter_spec):
      from wagtail.wagtailimages.views.serve import generate_signature
      signature = generate_signature(image.id, filter_spec)
      url = reverse('wagtailimages_serve', args=(signature, image.id, filter_spec))
  
      # Append image's original filename to the URL (optional)
      # url += image.file.name[len('original_images/'):]
  
      return settings.PUBLIC_HOST + url
  
  
  class WagtailImageSerializer(serializers.ModelSerializer):
      wagtail_image = serializers.SerializerMethodField()
      resource = serializers.SerializerMethodField()
  
      class Meta:
          model = MatteImage
          fields = ('id', 'wagtail_image', 'resource')
  
      def get_wagtail_image(self, image):
          return generate_image_url(image, 'fill-400x400')
  
  
      def get_resource(self, image):
          return image.file.name
  
  
  class SnippetSerializer(serializers.ModelSerializer):
      photo = WagtailImageSerializer()
  
      class Meta:
          model = StaffMemberSnippet
          fields = ('name', 'job_title', 'email', 'office_phone_number', 'mobile_phone_number', 'job_description', 'office_location', 'photo')
  
new_contents: from django.conf import settings
  from django.urls import reverse
  from rest_framework import serializers
  
  from falmer.content.models import StaffMemberSnippet
  from falmer.matte.models import MatteImage
  
  
  
  def generate_image_url(image, filter_spec):
      from wagtail.wagtailimages.views.serve import generate_signature
      signature = generate_signature(image.id, filter_spec)
      url = reverse('wagtailimages_serve', args=(signature, image.id, filter_spec))
  
      # Append image's original filename to the URL (optional)
      # url += image.file.name[len('original_images/'):]
  
      return settings.PUBLIC_HOST + url
  
  
  class WagtailImageSerializer(serializers.ModelSerializer):
      resource = serializers.SerializerMethodField()
  
      class Meta:
          model = MatteImage
          fields = ('id', 'resource')
  
      def get_resource(self, image):
          return image.file.name
  
  
  class SnippetSerializer(serializers.ModelSerializer):
      photo = WagtailImageSerializer()
  
      class Meta:
          model = StaffMemberSnippet
          fields = ('name', 'job_title', 'email', 'office_phone_number', 'mobile_phone_number', 'job_description', 'office_location', 'photo')
  
subject: Remove wagtail_image from image resources