个人博客模型设计python3+django2

在模型文件models.py中引入AbstractUser，用以继承Django自带用户模型

from django.db import models

from django.contrib.auth.models import AbstractUser

创建用户(User)模型，采用的继承方式扩展用户信息

class User(AbstractUser):

    # 在继承的基础上新增4个字段

    avatar = models.ImageField(upload_to='avatar/%Y/%m', default='avatar/default.png', max_length=200, blank=True, null=True, verbose_name='用户头像')

    qq = models.CharField(max_length=20, blank=True, null=True, verbose_name='QQ号码')

    mobile = models.CharField(max_length=11, blank=True, null=True, unique=True, verbose_name='手机号码')

    url = models.URLField(max_length=100, blank=True, null=True, verbose_name='个人网页地址')

    # 使用内部的class Meta 定义模型的元数据

    class Meta:

        # verbose_name：数据库表名名称，这里表名称为“用户”

        verbose_name = '用户'

        # verbose_name_plural：人类可读的单复数名称，这里“用户”复数名称为“用户”

        verbose_name_plural = verbose_name

        # ordering：如排序选项，这里以id降序来排序

        ordering = ['-id']

    def __str__(self):

        return self.username

创建分类(category)模型、文章(aticle)模型、评论(comment)模型

class Category(models.Model):

    name = models.CharField(max_length=30, verbose_name='分类名称')

    index = models.IntegerField(default=999, verbose_name='分类的排序')

    class Meta:

        verbose_name = '分类'

        verbose_name_plural = verbose_name

        ordering = ['index', 'id']

    def __str__(self):

        return self.name

class Article(models.Model):

    title = models.CharField(max_length=50, verbose_name='文章标题')

    desc = models.CharField(max_length=50, verbose_name='文章描述')

    content = models.TextField(verbose_name='文章内容')

    click_count = models.IntegerField(default=0, verbose_name='点击次数')

    is_recommend = models.BooleanField(default=False, verbose_name='是否推荐')

    date_publish = models.DateTimeField(auto_now_add=True, verbose_name='发布时间')

    user = models.ForeignKey(User, verbose_name='用户', on_delete=models.CASCADE)

    category = models.ForeignKey(Category, blank=True, null=True, verbose_name='分类', on_delete=models.CASCADE)

    class Meta:

        verbose_name = '文章'

        verbose_name_plural = verbose_name

        ordering = ['-date_publish']

    def __str__(self):

        return self.title



class Comment(models.Model):

    content = models.TextField(verbose_name='评论内容')

    username = models.CharField(max_length=30, blank=True, null=True, verbose_name='用户名')

    email = models.EmailField(max_length=50, blank=True, null=True, verbose_name='邮箱地址')

    url = models.URLField(max_length=100, blank=True, null=True, verbose_name='个人网页地址')

    date_publish = models.DateTimeField(auto_now_add=True, verbose_name='发布时间')

    user = models.ForeignKey(User, blank=True, null=True, verbose_name='用户', on_delete=models.CASCADE)

    article = models.ForeignKey(Article, blank=True, null=True, verbose_name='文章', on_delete=models.CASCADE)

    pid = models.ForeignKey('self', blank=True, null=True, verbose_name='父级评论', on_delete=models.CASCADE)

    class Meta:

        verbose_name = '评论'

        verbose_name_plural = verbose_name

    def __str__(self):

        return str(self.id)

最后在admin.py里面注册模型到admin管理后台

from .models import User, Tag, Category, Article, Comment, Links, Ad
@admin.register(User)
class UserAdmin(admin.ModelAdmin):
    pass


@admin.register(Category)
class CategoryAdmin(admin.ModelAdmin):
    pass


@admin.register(Article)
class ArticleAdmin(admin.ModelAdmin):
    pass


@admin.register(Comment)
class CommentAdmin(admin.ModelAdmin):
    pass

后使用以下命令,同步数据库，进入admin页面即可

   python manage.py makemigrations
   python manage.py migrate