models.py

from django.db import models
from django.contrib.postgres.fields import JSONField


class Score(models.Model):
    """docstring"""

    title = models.TextField(blank=True)
    stage_set = models.TextField(blank=True)
    mainline = JSONField(blank=True)

    def __str__(self):
        return self.title

    def get_absolute_url(self):
        return "/playground/score/#{}".format(self.id)