serializers.py

from rest_framework import serializers

from .models import ApplicationSubmission


class SubmissionListSerializer(serializers.ModelSerializer):
    url = serializers.HyperlinkedIdentityField(view_name='funds:submissions-api:detail')

    class Meta:
        model = ApplicationSubmission
        fields = ('id', 'title', 'status', 'url')


class SubmissionDetailSerializer(serializers.ModelSerializer):
    questions = serializers.SerializerMethodField()
    meta_questions = serializers.SerializerMethodField()
    stage = serializers.CharField(source='stage.name')

    class Meta:
        model = ApplicationSubmission
        fields = ('id', 'title', 'stage', 'meta_questions', 'questions')

    def serialize_questions(self, obj, fields):
        for field_id in fields:
            yield obj.serialize(field_id)

    def get_meta_questions(self, obj):
        meta_questions = {
            'title': 'Project Name',
            'full_name': 'Legal Name',
            'email': 'Email',
            'value': 'Requested Funding',
            'duration': 'Project Duration',
            'address': 'Address'
        }
        data = self.serialize_questions(obj, obj.named_blocks.values())
        data = [
            {
                **response,
                'question': meta_questions.get(response['type'], response['question'])
            }
            for response in data
        ]
        return data

    def get_questions(self, obj):
        return self.serialize_questions(obj, obj.normal_blocks)