function.py

from rest_framework.response import Response

from osp.models import (
    Choice, Checkbox, Dropdown,
    Paragraph, ShortAnswer,
    Date, Time, FileUpload
)
from osp.serializers.fields import (
    ChoiceSerializer, CheckboxSerializer, DropdownSerializer,
    ParagraphSerializer, ShortAnswerSerializer, ParagraphSerializer,
    DateSerializer, TimeSerializer, FileUploadSerializer
)

def get_model_and_serializer(data_type):
    if data_type == 'char':
        model = ShortAnswer
        serializer = ShortAnswerSerializer

    elif data_type == 'text':
        model = Paragraph
        serializer = ParagraphSerializer

    elif data_type == 'choice':
        model = Choice
        serializer = ChoiceSerializer

    elif data_type == 'checkbox':
        model = Checkbox
        serializer = CheckboxSerializer

    elif data_type == 'dropdown':
        model = Dropdown
        serializer = DropdownSerializer

    elif data_type == 'date':
        model = Date
        serializer = DateSerializer

    elif data_type == 'time':
        model = Time
        serializer = TimeSerializer

    elif data_type == 'file':
        model = FileUpload
        serializer = FileUploadSerializer

    return {
        "model": model,
        "serializer": serializer
    }