數據庫

 

from django.db import models
from django.contrib.auth.models import AbstractUser  # admin 表中的有些字段就不會顯示


# Create your models here.
class UserInfo(AbstractUser):  # settings:   AUTH_USER_MODEL = "app01.UserInfo"
    """
    用戶信息
    """
    nid = models.BigAutoField(primary_key=True)
    nickname = models.CharField(verbose_name='暱稱', max_length=32)
    telephone = models.CharField(max_length=11, blank=True, null=True, unique=True, verbose_name='手機號碼')
    avatar = models.FileField(verbose_name='頭像', upload_to='uploads', default="default/default.png")
    create_time = models.DateTimeField(verbose_name='建立時間', auto_now_add=True)

    class Meta:
        verbose_name_plural = "用戶信息表"

    def __str__(self):
        return self.username  # 這裏能夠看作是驗證成功返回的值


class Blog(models.Model):
    """
    站點信息
    """
    nid = models.BigAutoField(primary_key=True)
    title = models.CharField(verbose_name='我的博客標題', max_length=64)
    site = models.CharField(verbose_name='我的博客後綴', max_length=32, unique=True)
    theme = models.CharField(verbose_name='博客主題', max_length=32)
    user = models.OneToOneField(to='UserInfo', to_field='nid')

    class Meta:
        verbose_name_plural = "站點信息表"

    def __str__(self):
        return self.title


class Category(models.Model):
    """
    博主我的文章分類表
    """
    nid = models.AutoField(primary_key=True)
    title = models.CharField(verbose_name='分類標題', max_length=32)
    blog = models.ForeignKey(verbose_name='所屬博客', to='Blog', to_field='nid')  # 一個站點多個博客

    def __str__(self):
        return self.title

    class Meta:
        verbose_name_plural = "文章分類表"


class Article(models.Model):
    '''
    文章表，最主要的一張表
    '''
    nid = models.BigAutoField(primary_key=True)
    title = models.CharField(max_length=50, verbose_name='文章標題')
    desc = models.CharField(max_length=255, verbose_name='文章描述')  # 外鍵用更加詳細的描述
    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='建立時間')  # auto_now_add    當前的時間
    category = models.ForeignKey(verbose_name='文章類型', to='Category', to_field='nid', null=True)  # 多個文章對應一個類型
    user = models.ForeignKey(verbose_name='所屬用戶', to='UserInfo', to_field='nid')  # 多個文章對應一個用戶
    tags = models.ManyToManyField(
        to="Tag",
        through='Article2Tag',
        through_fields=('article', 'tag'),
    )
    site_article_category = models.ForeignKey("SiteArticleCategory", null=True)
    # type_choices = [
    #     (1, "編程語言"),
    #     (2, "軟件設計"),
    #     (3, "前端"),
    #     (4, "操做系統"),
    #     (5, "數據庫"),
    # ]
    # 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):
    """
    文章詳細表
    """
    nid = models.AutoField(primary_key=True)
    content = models.TextField(verbose_name='文章內容', )
    article = models.OneToOneField(verbose_name='所屬文章', to='Article', to_field='nid')  # 每一個文章的簡介只是對應一片文章

    class Meta:
        verbose_name_plural = "文章詳細表"

    def __str__(self):
        return self.content


class Comment(models.Model):
    """
    評論表
    """
    nid = models.BigAutoField(primary_key=True)
    content = models.CharField(verbose_name='評論內容', max_length=255)
    create_time = models.DateTimeField(verbose_name='建立時間', auto_now_add=True)
    up_count = models.IntegerField(default=0)
    user = models.ForeignKey(verbose_name='評論者', to='UserInfo', to_field='nid')  # 評論表是由多我的組件起來的
    article = models.ForeignKey(verbose_name='評論文章', to='Article', to_field='nid')  # 評論的是文章
    parent_comment = models.ForeignKey('self', blank=True, null=True, verbose_name='父級評論')  # 自關聯，父級評論

    class Meta:
        verbose_name_plural = "評論表"

    def __str__(self):
        return self.content


class CommentUp(models.Model):
    """
    評論點贊表
    """
    nid = models.AutoField(primary_key=True)
    user = models.ForeignKey('UserInfo', null=True)  # 用戶點贊
    comment = models.ForeignKey("Comment", null=True)  # 對評論點贊

    class Meta:
        verbose_name_plural = "評論點贊表"


class ArticleUp(models.Model):
    """
    文章點贊表
    """
    nid = models.AutoField(primary_key=True)
    user = models.ForeignKey('UserInfo', null=True)  # 用戶點贊
    article = models.ForeignKey("Article", null=True)  # 文章點贊

    class Meta:
        verbose_name_plural = "文章點贊表"


class Tag(models.Model):
    '''
    標籤表
    '''
    nid = models.AutoField(primary_key=True)
    title = models.CharField(verbose_name='標籤名稱', max_length=32)
    blog = models.ForeignKey(verbose_name='所屬博客', to='Blog', to_field='nid')  # 多個標籤屬於一個博客，，

    class Meta:
        verbose_name_plural = "標籤表"

    def __str__(self):
        return self.title


class Article2Tag(models.Model):
    '''
    文章標籤的第二張表，本身新建的
    '''
    nid = models.AutoField(primary_key=True)
    article = models.ForeignKey(verbose_name='文章', to="Article", to_field='nid')  # 對應文章
    tag = models.ForeignKey(verbose_name='標籤', to="Tag", to_field='nid')  # 對應標籤

    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 = "大分類"

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 = "小分類"

View Code