old_contents: from django.db import models
  
  # Create your models here.
  
  class Story(models.Model):
      headline             = models.CharField(max_length=100)
      url                  = models.CharField(max_length=255)
      lat                  = models.FloatField()
      lon                  = models.FloatField()
      location_description = models.CharField(max_length=255)
      popularity           = models.IntegerField()
      blurb                = models.CharField(max_length=1000)
  
new_contents: from django.db import models
  
  # Create your models here.
  
  class Story(models.Model):
      headline             = models.CharField(max_length=100, null=True)
      url                  = models.CharField(max_length=255, null=True)
      lat                  = models.FloatField(null=True)
      lon                  = models.FloatField(null=True)
      location_description = models.CharField(max_length=255, null=True)
      popularity           = models.IntegerField(null=True)
      blurb                = models.CharField(max_length=1000, null=True)
  
subject: make fields model fields nullable