• 表結構：

from django.contrib.auth.models import AbstractUser
from django.db import models


# Create your models here.


class AuthorInfo(AbstractUser):
    """
    使用者資訊表
    """
    nid = models.AutoField(primary_key=True)
    phone = models.CharField(max_length=11, null=True, unique=True)
    avatar = models.FileField(upload_to="avatars/"
 
, default="avatars/default.png")

    blog = models.OneToOneField(to="Blog", to_field="nid", null=True, on_delete=models.CASCADE)

    def __str__(self):
        return self.username

    class Meta:
        verbose_name = "使用者資訊"
        verbose_name_plural = verbose_name


class Blog(models.Model):
 

    """
    部落格資訊
    """
    nid = models.AutoField(primary_key=True)
    title = models.CharField(max_length=64)  # 個人部落格標題
    theme = models.CharField(max_length=32)  # 部落格主題

    def __str__(self):
        return self.title

    class Meta:
        verbose_name = "部落格"
        verbose_name_plural = verbose_name


class
 
 Category(models.Model):
    """
    個人部落格文章分類
    """
    nid = models.AutoField(primary_key=True)
    title = models.CharField(max_length=32)  # 分類標題
    blog = models.ForeignKey(to="Blog", to_field="nid", on_delete=models.CASCADE)  # 外來鍵關聯部落格，一個部落格站點可以有多個分類

    def __str__(self):
        return "{}-{}".format(self.blog.title, self.title)

    class Meta:
        verbose_name = "文章分類"
        verbose_name_plural = verbose_name


class Tag(models.Model):
    """
    標籤
    """
    nid = models.AutoField(primary_key=True)
    title = models.CharField(max_length=32)  # 標籤名
    blog = models.ForeignKey(to="Blog", to_field="nid", on_delete=models.CASCADE)  # 所屬部落格

    def __str__(self):
        return self.title

    class Meta:
        verbose_name = "標籤"
        verbose_name_plural = verbose_name


class Article(models.Model):
    """
    文章
    """
    nid = models.AutoField(primary_key=True)
    title = models.CharField(max_length=50, verbose_name="標題")  # 文章標題
    desc = models.CharField(max_length=255)  # 文章描述
    create_time = models.DateTimeField(auto_now_add=True)  # 建立時間
    category = models.ForeignKey(to="Category", to_field="nid", null=True, on_delete=models.CASCADE)
    user = models.ForeignKey(to="AuthorInfo", to_field="nid", on_delete=models.CASCADE)

    # 評論數
    comment_count = models.IntegerField(default=0)
    # 點贊數
    up_count = models.IntegerField(default=0)
    # 反對數
    down_count = models.IntegerField(default=0)

    tags = models.ManyToManyField(
        to="Tag",
        through="Article2Tag",
        through_fields=("article", "tag"),
    )

    def __str__(self):
        return self.title

    class Meta:
        verbose_name = "文章"
        verbose_name_plural = verbose_name


class ArticleDetail(models.Model):
    """
    文章詳情表
    """
    nid = models.AutoField(primary_key=True)
    content = models.TextField()
    article = models.OneToOneField(to="Article", to_field="nid", on_delete=models.CASCADE)

    class Meta:
        verbose_name = "文章詳情"
        verbose_name_plural = verbose_name


class Article2Tag(models.Model):
    """
    文章和標籤的多對多關係表
    """
    nid = models.AutoField(primary_key=True)
    article = models.ForeignKey(to="Article", to_field="nid", on_delete=models.CASCADE)
    tag = models.ForeignKey(to="Tag", to_field="nid", on_delete=models.CASCADE)

    def __str__(self):
        return "{}-{}".format(self.article, self.tag)

    class Meta:
        unique_together = (("article", "tag"),)
        verbose_name = "文章-標籤"
        verbose_name_plural = verbose_name


class ArticleThumbsUp(models.Model):
    """
    點贊表
    """
    nid = models.AutoField(primary_key=True)
    user = models.ForeignKey(to="AuthorInfo", null=True, on_delete=models.CASCADE)
    article = models.ForeignKey(to="Article", null=True, on_delete=models.CASCADE)
    is_up = models.BooleanField(default=True)

    class Meta:
        unique_together = (("article", "user"),)
        verbose_name = "點贊"
        verbose_name_plural = verbose_name


class Comment(models.Model):
    """
    評論表
    """
    nid = models.AutoField(primary_key=True)
    article = models.ForeignKey(to="Article", to_field="nid", on_delete=models.CASCADE)
    user = models.ForeignKey(to="AuthorInfo", to_field="nid", on_delete=models.CASCADE)
    content = models.CharField(max_length=255)  # 評論內容
    create_time = models.DateTimeField(auto_now_add=True)
    parent_comment = models.ForeignKey("self", null=True, on_delete=models.CASCADE)

    def __str__(self):
        return self.content

    class Meta:
        verbose_name = "評論"
        verbose_name_plural = verbose_name

• 資料庫遷移：
  

python3 manage.py makemigations
這時會報個錯誤：

ERRORS:
auth.User.groups: (fields.E304) Reverse accessor for 'User.groups' clashes with reverse accessor for 'AuthorInfo.groups'.
        HINT: Add or change a related_name argument to the definition for 'User.groups' or 'AuthorInfo.groups'.
auth.User.user_permissions: (fields.E304) Reverse accessor for 'User.user_permissions' clashes with reverse accessor for 'AuthorIn
fo.user_permissions'.
        HINT: Add or change a related_name argument to the definition for 'User.user_permissions' or 'AuthorInfo.user_permissions'
.
login_func.AuthorInfo.groups: (fields.E304) Reverse accessor for 'AuthorInfo.groups' clashes with reverse accessor for 'User.group
s'.
        HINT: Add or change a related_name argument to the definition for 'AuthorInfo.groups' or 'User.groups'.
login_func.AuthorInfo.user_permissions: (fields.E304) Reverse accessor for 'AuthorInfo.user_permissions' clashes with reverse acce
ssor for 'User.user_permissions'.
        HINT: Add or change a related_name argument to the definition for 'AuthorInfo.user_permissions' or 'User.user_permissions'

解決方案：在settings.py中

AUTH_USER_MODEL = '建立app的名字.AuthorInfo'