old_contents: from bluebottle.bluebottle_drf2.serializers import ImageSerializer
  from bluebottle.projects.models import PartnerOrganization
  from bluebottle.projects.serializers import ProjectPreviewSerializer as BaseProjectPreviewSerializer
  from rest_framework import serializers
  
  
  # This is a bit of a hack. We have an existing ProjectPreviewSerializer in /bb_projects/serializers.
  # However, that serializer depends on properties calculated in the ProjectPreview view. Therefore, we
  # cannot re-use the serializer. The serialzier below is the same, except it has the fields "people_requested"
  # and "people_registered" removed.
  from bluebottle.utils.serializer_dispatcher import get_serializer_class
  
  
  class ProjectPreviewSerializer(BaseProjectPreviewSerializer):
      task_count = serializers.IntegerField(source='task_count')
      owner = get_serializer_class('AUTH_USER_MODEL', 'preview')(source='owner')
      partner = serializers.SlugRelatedField(slug_field='slug', source='partner_organization')
      is_funding = serializers.Field()
  
      class Meta(BaseProjectPreviewSerializer):
          model = BaseProjectPreviewSerializer.Meta.model
          fields = ('id', 'title', 'image', 'status', 'pitch', 'country', 'task_count',
                    'allow_overfunding', 'latitude', 'longitude', 'is_campaign',
                    'amount_asked', 'amount_donated', 'amount_needed', 'amount_extra',
                    'deadline', 'status', 'owner', 'partner', 'is_funding')
  
  
  class PartnerOrganizationPreviewSerializer(serializers.ModelSerializer):
      id = serializers.CharField(source='slug', read_only=True)
  
      class Meta:
          model = PartnerOrganization
          fields = ('id', 'name', )
  
  
  class PartnerOrganizationSerializer(PartnerOrganizationPreviewSerializer):
      projects = ProjectPreviewSerializer(source='projects')
      image = ImageSerializer(required=False)
      description = serializers.CharField(source='description')
  
      class Meta:
          model = PartnerOrganization
          fields = ('id', 'name', 'projects', 'description', 'image')
  
  
new_contents: from bluebottle.bluebottle_drf2.serializers import ImageSerializer
  from bluebottle.projects.models import PartnerOrganization
  from bluebottle.projects.serializers import ProjectPreviewSerializer
  from rest_framework import serializers
  
  
  class PartnerOrganizationPreviewSerializer(serializers.ModelSerializer):
      id = serializers.CharField(source='slug', read_only=True)
  
      class Meta:
          model = PartnerOrganization
          fields = ('id', 'name', )
  
  
  class PartnerOrganizationSerializer(PartnerOrganizationPreviewSerializer):
      projects = ProjectPreviewSerializer(source='projects')
      image = ImageSerializer(required=False)
      description = serializers.CharField(source='description')
  
      class Meta:
          model = PartnerOrganization
          fields = ('id', 'name', 'projects', 'description', 'image')
  
  
subject: Fix partner project serializer. (The comment was outdated btw)