数据库

 

from django.db import models
from django.contrib.auth.models import AbstractUser  # admin 表中的有些字段就不会显示


# Create your models here.
class UserInfo(AbstractUser):  # settings:   AUTH_USER_MODEL = "app01.UserInfo"
    """
    用户信息
    """
    nid = models.BigAutoField(primary_key=True)
    nickname = models.CharField(verbose_name='昵称', max_length=32)
    telephone = models.CharField(max_length=11, blank=True, null=True, unique=True, verbose_name='手机号码')
    avatar = models.FileField(verbose_name='头像', upload_to='uploads', default="default/default.png")
    create_time = models.DateTimeField(verbose_name='创建时间', auto_now_add=True)

    class Meta:
        verbose_name_plural = "用户信息表"

    def __str__(self):
        return self.username  # 这里可以看做是验证成功返回的值


class Blog(models.Model):
    """
    站点信息
    """
    nid = models.BigAutoField(primary_key=True)
    title = models.CharField(verbose_name='个人博客标题', max_length=64)
    site = models.CharField(verbose_name='个人博客后缀', max_length=32, unique=True)
    theme = models.CharField(verbose_name='博客主题', max_length=32)
    user = models.OneToOneField(to='UserInfo', to_field='nid')

    class Meta:
        verbose_name_plural = "站点信息表"

    def __str__(self):
        return self.title


class Category(models.Model):
    """
    博主个人文章分类表
    """
    nid = models.AutoField(primary_key=True)
    title = models.CharField(verbose_name='分类标题', max_length=32)
    blog = models.ForeignKey(verbose_name='所属博客', to='Blog', to_field='nid')  # 一个站点多个博客

    def __str__(self):
        return self.title

    class Meta:
        verbose_name_plural = "文章分类表"


class Article(models.Model):
    '''
    文章表，最主要的一张表
    '''
    nid = models.BigAutoField(primary_key=True)
    title = models.CharField(max_length=50, verbose_name='文章标题')
    desc = models.CharField(max_length=255, verbose_name='文章描述')  # 外键用更加详细的描述
    read_count = models.IntegerField(default=0)
    comment_count = models.IntegerField(default=0)
    up_count = models.IntegerField(default=0)
    down_count = models.IntegerField(default=0)
    create_time = models.DateTimeField(verbose_name='创建时间')  # auto_now_add    当前的时间
    category = models.ForeignKey(verbose_name='文章类型', to='Category', to_field='nid', null=True)  # 多个文章对应一个类型
    user = models.ForeignKey(verbose_name='所属用户', to='UserInfo', to_field='nid')  # 多个文章对应一个用户
    tags = models.ManyToManyField(
        to="Tag",
        through='Article2Tag',
        through_fields=('article', 'tag'),
    )
    site_article_category = models.ForeignKey("SiteArticleCategory", null=True)
    # type_choices = [
    #     (1, "编程语言"),
    #     (2, "软件设计"),
    #     (3, "前端"),
    #     (4, "操作系统"),
    #     (5, "数据库"),
    # ]
    # article_type_id = models.IntegerField(choices=type_choices, default=None)

    class Meta:
        verbose_name_plural = "文章表"

    def __str__(self):
        return self.title


class ArticleDetail(models.Model):
    """
    文章详细表
    """
    nid = models.AutoField(primary_key=True)
    content = models.TextField(verbose_name='文章内容', )
    article = models.OneToOneField(verbose_name='所属文章', to='Article', to_field='nid')  # 每个文章的简介只是对应一片文章

    class Meta:
        verbose_name_plural = "文章详细表"

    def __str__(self):
        return self.content


class Comment(models.Model):
    """
    评论表
    """
    nid = models.BigAutoField(primary_key=True)
    content = models.CharField(verbose_name='评论内容', max_length=255)
    create_time = models.DateTimeField(verbose_name='创建时间', auto_now_add=True)
    up_count = models.IntegerField(default=0)
    user = models.ForeignKey(verbose_name='评论者', to='UserInfo', to_field='nid')  # 评论表是由多个人组件起来的
    article = models.ForeignKey(verbose_name='评论文章', to='Article', to_field='nid')  # 评论的是文章
    parent_comment = models.ForeignKey('self', blank=True, null=True, verbose_name='父级评论')  # 自关联，父级评论

    class Meta:
        verbose_name_plural = "评论表"

    def __str__(self):
        return self.content


class CommentUp(models.Model):
    """
    评论点赞表
    """
    nid = models.AutoField(primary_key=True)
    user = models.ForeignKey('UserInfo', null=True)  # 用户点赞
    comment = models.ForeignKey("Comment", null=True)  # 对评论点赞

    class Meta:
        verbose_name_plural = "评论点赞表"


class ArticleUp(models.Model):
    """
    文章点赞表
    """
    nid = models.AutoField(primary_key=True)
    user = models.ForeignKey('UserInfo', null=True)  # 用户点赞
    article = models.ForeignKey("Article", null=True)  # 文章点赞

    class Meta:
        verbose_name_plural = "文章点赞表"


class Tag(models.Model):
    '''
    标签表
    '''
    nid = models.AutoField(primary_key=True)
    title = models.CharField(verbose_name='标签名称', max_length=32)
    blog = models.ForeignKey(verbose_name='所属博客', to='Blog', to_field='nid')  # 多个标签属于一个博客，，

    class Meta:
        verbose_name_plural = "标签表"

    def __str__(self):
        return self.title


class Article2Tag(models.Model):
    '''
    文章标签的第二张表，自己新建的
    '''
    nid = models.AutoField(primary_key=True)
    article = models.ForeignKey(verbose_name='文章', to="Article", to_field='nid')  # 对应文章
    tag = models.ForeignKey(verbose_name='标签', to="Tag", to_field='nid')  # 对应标签

    class Meta:
        unique_together = [
            ('article', 'tag'),
        ]

class SiteCategory(models.Model):
    name=models.CharField(max_length=32)

    def __str__(self):
        return self.name

    class Meta:
        verbose_name_plural = "大分类"

class SiteArticleCategory(models.Model):
    name=models.CharField(max_length=32)
    site_category=models.ForeignKey("SiteCategory")
    def __str__(self):
        return self.name

    class Meta:
        verbose_name_plural = "小分类"