type = models.CharField(max_length=15, db_index=True)
order = models.IntegerField(db_index=True)
dc = JSONField(default='{}')
- curriculum_courses = models.ManyToManyField(CurriculumCourse)
+ curriculum_courses = models.ManyToManyField(CurriculumCourse, blank=True)
xml_file = models.FileField(upload_to="catalogue/lesson/xml",
null=True, blank=True, max_length=255)