嗨，我正在尝试生成迁移，但并未将所有字段都创建到数据库中。下面是我的代码。

from django.db import models

class News(models.Model):
    author = models.CharField(max_length = 100),content = models.CharField(max_length= 100),description = models.TextField(default= "")

    def __str__(self):
        return self.author

    class Meta:
        db_table = "news"


class SportNews(models.Model):
    author = models.CharField(max_length = 100),content = models.CharField(max_length = 100),description = models.TextField(default = "")

    def __str__(self):
        return self.author

    class Meta:
        db_table = "sports_news"