- source = models.CharField(max_length=500, blank=True, db_index=True)
- biology = models.TextField(blank=True)
- notes = models.TextField(blank=True)
+ source = models.CharField(max_length=500, blank=True, null=True, db_index=True)
+ biology = models.TextField(blank=True, null=True)
+ notes = models.TextField(blank=True, null=True)