BBS模型层搭建-编程知识

BBS模型层搭建

建表思想

表结构图解

配置文件

settings.py：

# 默认用户模型指定
AUTH_USER_MODEL = 'User.Userinfo'

底部添加即可，用于替换默认的AbstractUser用户表

STATIC_URL = '/static/'
STATIC_DIRS = [os.path.join(BASE_DIR, 'User/static')
]

创建static静态地址

DATABASES = {'default': {'ENGINE': 'django.db.backends.mysql','NAME': 'BBS','USER': 'root','PASSWORD': '7997','HOST': '127.0.0.1','PORT': 3306,'CHARSET': 'utf8',}
}

更改默认数据库

模型层

User应用：

# models.pyfrom django.db import models
from django.contrib.auth.models import AbstractUser# 用户表
class Userinfo(AbstractUser):phone = models.CharField(verbose_name='手机号', help_text='手机号', max_length=11, null=True)avatar = models.FileField(verbose_name='头像', help_text='头像', null=True, default='static/avatar/default.png')register_time = models.TimeField(verbose_name='注册时间', help_text='注册时间', auto_now_add=True)last_login_time = models.TimeField(verbose_name='最近登录时间', help_text='最近登录时间', null=True)is_deleted = models.BooleanField(verbose_name='注销状态', help_text='注销状态', default=False)# 一对一绑定站点表blog = models.OneToOneField('Blog.Blog', verbose_name='关联站点', help_text='关联站点',on_delete=models.CASCADE,related_name='blog', null=True)class Meta:# 指定数据库在后台显示的名字verbose_name = "用户表"verbose_name_plural = verbose_namedb_table = 'Userinfo'

# admin.pyfrom django.contrib import admin
from User.models import Userinfo# Register your models here.# 创建一个类并用它来定制Userinfo
@admin.register(Userinfo)
# 这个类必须继承 admin.ModelAdmin
class UserinfoAdmin(admin.ModelAdmin):# 后台展示的信息，默认是全部都展示，但是可以定制展示的字段list_display = ['username', 'last_name', 'email', 'phone', 'avatar', 'register_time', 'last_login_time','is_deleted', 'blog']

Blog应用：

# models.py
from django.db import models# 个人站点表
class Blog(models.Model):site_name = models.CharField(verbose_name='站点名', help_text='站点名', max_length=20, null=True)site_title = models.CharField(verbose_name='站点标题', help_text='站点标题', max_length=20, null=True)site_theme = models.CharField(verbose_name='站点样式', help_text='站点样式', max_length=255, null=True)# 一对多绑定分类表article_category = models.ForeignKey('Article.ArticleCategory', verbose_name='关联分类', help_text='关联分类',on_delete=models.CASCADE, related_name='blog')# 一对多绑定标签表article_tags = models.ForeignKey('Article.ArticleTags', verbose_name='关联标签', help_text='关联标签',on_delete=models.CASCADE, related_name='blog')class Meta:# 指定数据库在后台显示的名字verbose_name = "个人站点表"verbose_name_plural = verbose_namedb_table = 'Blog'# 广告信息表
class Adv(models.Model):title = models.CharField(verbose_name="广告标题", help_text="广告标题", max_length=64)content = models.TextField(verbose_name="广告详情", help_text="广告详情")create_time = models.DateTimeField(verbose_name="创建时间", help_text="创建时间", auto_now=True)update_time = models.DateTimeField(verbose_name="更新时间", help_text="更新时间", auto_now_add=True)mobile = models.CharField(verbose_name="手机号", help_text="手机号", max_length=11,default="", blank=True)img = models.ImageField(verbose_name="广告图片", help_text="广告图片",upload_to="static/advImg/", default="")class Meta:# 指定数据库在后台显示的名字verbose_name = "广告信息表"verbose_name_plural = verbose_namedb_table = 'Adv'

# admin.pyfrom django.contrib import admin
from Blog.models import Blog, Adv@admin.register(Blog)
class BlogAdmin(admin.ModelAdmin):# 后台展示的信息，默认是全部都展示，但是可以定制展示的字段list_display = ['site_name', 'site_title', 'site_theme', 'article_category', 'article_tags']@admin.register(Adv)
class AdvAdmin(admin.ModelAdmin):# 后台展示的信息，默认是全部都展示，但是可以定制展示的字段list_display = ['title', 'content', 'create_time', 'update_time', 'mobile', 'img']

Article应用：

# models.pyfrom django.db import models# 文章表
class Article(models.Model):title = models.CharField(verbose_name='标题', help_text='标题', max_length=32, null=True)desc = models.CharField(verbose_name='描述', help_text='描述', max_length=255, null=True)context = models.TextField(verbose_name='内容', help_text='内容', null=True)create_time = models.DateTimeField(verbose_name='发布时间', help_text='发布时间', auto_now_add=True, null=True)up_num = models.BigIntegerField(verbose_name='点赞数', help_text='点赞数', null=True)down_num = models.BigIntegerField(verbose_name='点踩数', help_text='点踩数', null=True)comment_num = models.BigIntegerField(verbose_name='评论数', help_text='评论数', null=True)# 多对多绑定标签表tags = models.ManyToManyField('ArticleTags', verbose_name='评论内容', help_text='评论内容',through='ArticleToTags', through_fields=['article', 'tag'])class Meta:# 指定数据库在后台显示的名字verbose_name = "文章表"verbose_name_plural = verbose_namedb_table = 'article'# 文章分类表
class ArticleCategory(models.Model):name = models.CharField(verbose_name='分类名称', help_text='分类名称', max_length=32, null=True)# 一对多绑定文章表article = models.ForeignKey('Article', verbose_name='评论内容', help_text='评论内容', on_delete=models.CASCADE,related_name='article_category', null=True)class Meta:# 指定数据库在后台显示的名字verbose_name = "文章分类表"verbose_name_plural = verbose_namedb_table = 'article_category'# 文章标签表
class ArticleTags(models.Model):name = models.CharField(verbose_name='标签名称', help_text='标签名称', max_length=32, null=True)## # 多对多绑定文章表# article = models.ForeignKey('Article', verbose_name='关联文章', help_text='关联文章', on_delete=models.CASCADE,#                             related_name='article_tags', null=True)class Meta:# 指定数据库在后台显示的名字verbose_name = "文章标签表"verbose_name_plural = verbose_namedb_table = 'article_tags'# 文章点赞点踩表
class UpDown(models.Model):up_num = models.BigIntegerField(verbose_name='点赞数', help_text='点赞数', null=True)down_num = models.BigIntegerField(verbose_name='点踩数', help_text='点踩数', null=True)# 一对多绑定用户表user = models.ForeignKey('User.Userinfo', verbose_name='关联用户', help_text='关联用户', on_delete=models.CASCADE,related_name='up_down', null=True)# 一对多绑定文章表article = models.ForeignKey('Article', verbose_name='关联文章', help_text='关联文章', on_delete=models.CASCADE,related_name='up_down', null=True)class Meta:# 指定数据库在后台显示的名字verbose_name = "文章点赞点踩表"verbose_name_plural = verbose_namedb_table = 'up_down'# 文章评论表
class Comment(models.Model):content = models.TextField(verbose_name='评论内容', help_text='评论内容', null=True)comment_time = models.DateTimeField(verbose_name='发布时间', help_text='发布时间', null=True)# 一对多绑定用户表user = models.ForeignKey('User.Userinfo', verbose_name='关联用户', help_text='关联用户', on_delete=models.CASCADE,related_name='comment', null=True)# 一对多绑定文章表article = models.ForeignKey('Article', verbose_name='关联文章', help_text='关联文章', on_delete=models.CASCADE,related_name='comment', null=True)# 自关联表 表示评论的上下级关系parent_comment = models.ForeignKey('self', verbose_name='上级评论', help_text='上级评论', on_delete=models.SET_NULL,blank=True, null=True, related_name='son_comment')class Meta:# 指定数据库在后台显示的名字verbose_name = "文章评论表"verbose_name_plural = verbose_namedb_table = 'comment'# 多对多绑定文章表和标签表
class ArticleToTags(models.Model):tag = models.ForeignKey('ArticleTags', verbose_name='关联标签', help_text='关联标签', on_delete=models.CASCADE,related_name='article_to_tags', null=True)article = models.ForeignKey('Article', verbose_name='关联文章', help_text='关联文章', on_delete=models.CASCADE,related_name='article_to_tags', null=True)class Meta:# 指定数据库在后台显示的名字verbose_name = "多对多绑定文章表和标签表"verbose_name_plural = verbose_namedb_table = 'article_to_tags'

# admin.pyfrom django.contrib import admin
from Article.models import Article, ArticleCategory, ArticleTags, UpDown, Comment, ArticleToTags@admin.register(Article)
class ArticleAdmin(admin.ModelAdmin):# 后台展示的信息，默认是全部都展示，但是可以定制展示的字段list_display = ['title', 'desc', 'context', 'create_time', 'up_num', 'down_num', 'comment_num']@admin.register(ArticleCategory)
class ArticleCategoryAdmin(admin.ModelAdmin):# 后台展示的信息，默认是全部都展示，但是可以定制展示的字段list_display = ['name','article']@admin.register(ArticleTags)
class ArticleTagsAdmin(admin.ModelAdmin):# 后台展示的信息，默认是全部都展示，但是可以定制展示的字段list_display = ['name']@admin.register(UpDown)
class UpDownAdmin(admin.ModelAdmin):# 后台展示的信息，默认是全部都展示，但是可以定制展示的字段list_display = ['up_num', 'down_num', 'user', 'article']@admin.register(Comment)
class CommentAdmin(admin.ModelAdmin):# 后台展示的信息，默认是全部都展示，但是可以定制展示的字段list_display = ['content', 'comment_time', 'user', 'article', 'parent_comment']@admin.register(ArticleToTags)
class Article_To_TagsAdmin(admin.ModelAdmin):# 后台展示的信息，默认是全部都展示，但是可以定制展示的字段list_display = ['tag', 'article']
mment)
class CommentAdmin(admin.ModelAdmin):# 后台展示的信息，默认是全部都展示，但是可以定制展示的字段list_display = ['content', 'comment_time', 'user', 'article', 'parent_comment']@admin.register(ArticleToTags)
class Article_To_TagsAdmin(admin.ModelAdmin):# 后台展示的信息，默认是全部都展示，但是可以定制展示的字段list_display = ['tag', 'article']