引子: 烂尾就烂尾吧，大不了以后自己创业。唉，也算给自己一个警戒。
E-R模型
接口设计
数据模型设计
基本模型放在models.py中
class School(models.Model):id = models.AutoField(primary_key=True)name = models.CharField(max_length=100, verbose_name='学校名称')
# 学校校区
class SchoolRegion(models.Model):id = models.AutoField(primary_key=True)name = models.CharField(max_length=100, verbose_name='校区名称')school = models.ForeignKey(School, on_delete=models.CASCADE, related_name='regions', verbose_name='所属学校')def __str__(self):return f"{self.school.name} {self.name}"# 用户
class CustomUser(models.Model):wechat_openid = models.CharField(max_length=255, unique=True, verbose_name='微信OpenID', null=True, blank=True)id = models.BigAutoField(primary_key=True, editable=False)phone = models.CharField(max_length=11, unique=True, verbose_name='手机号')gender = models.CharField(max_length=10, choices=(('male', '男'), ('female', '女'),('unknow','未知')), verbose_name='性别')avatar = models.URLField(verbose_name='头像URL')nickname = models.CharField(max_length=50, verbose_name='昵称')signature = models.CharField(null=True, blank=True, max_length=200, verbose_name='个性签名')email = models.EmailField(null=True, blank=True, unique=True, verbose_name='邮箱')birthday = models.DateField(null=True, blank=True, verbose_name='生日')height = models.IntegerField(null=True, blank=True, verbose_name='身高')background_image = models.URLField(null=True, blank=True, verbose_name='背景图URL')hometown = models.CharField(null=True, blank=True, max_length=50, verbose_name='家乡')created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')updated_at = models.DateTimeField(auto_now=True, verbose_name='更新时间')is_verified = models.BooleanField(default=False, verbose_name='是否通过认证')is_frozen = models.BooleanField(default=False, verbose_name='是否冻结')school = models.ForeignKey('School', on_delete=models.CASCADE, related_name='students', verbose_name='所在学校', null=True, blank=True)region = models.ForeignKey('SchoolRegion', on_delete=models.CASCADE, related_name='students', verbose_name='所在校区', null=True, blank=True)like_number = models.IntegerField(default=0, verbose_name='点赞数')fan_number = models.IntegerField(default=0, verbose_name='粉丝数') # 用户被关注follow_number = models.IntegerField(default=0, verbose_name='关注数') # 用户关注数def __str__(self):return self.nickname# 圈子
class Circle(models.Model):id = models.AutoField(primary_key=True)name = models.CharField(max_length=100, verbose_name='圈子名称')description = models.TextField(verbose_name='圈子描述')avatar = models.URLField(verbose_name='圈子头像URL')notice = models.TextField(null=True, blank=True, verbose_name='圈子公告')created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')is_verified = models.BooleanField(default=False, verbose_name='是否通过认证')is_frozen = models.BooleanField(default=False, verbose_name='是否冻结')creator = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='circles', verbose_name='创建者')school = models.ForeignKey(School, on_delete=models.CASCADE, related_name='circles', verbose_name='所属学校')like_number = models.IntegerField(default=0, verbose_name='点赞数')collect_number = models.IntegerField(default=0, verbose_name='收藏数')fan_number = models.IntegerField(default=0, verbose_name='粉丝数')def __str__(self):return f"{self.name} (创建者：{self.creator.nickname})"# 帖子
class Post(models.Model):id = models.BigAutoField(primary_key=True)title = models.CharField(max_length=200, verbose_name='标题') content = models.TextField(verbose_name='内容')created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')is_frozen = models.BooleanField(default=False, verbose_name='是否冻结')circle = models.ForeignKey(Circle, on_delete=models.CASCADE, related_name='posts', verbose_name='所属圈子')author = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='posts', verbose_name='作者')like_number = models.IntegerField(default=0, verbose_name='点赞数')collect_number = models.IntegerField(default=0, verbose_name='收藏数')comment_number = models.IntegerField(default=0, verbose_name='评论数')def __str__(self):return f"{self.author.nickname}发布的{self.title}"# 评论
class Comment(models.Model):id = models.BigAutoField(primary_key=True)content = models.TextField(verbose_name='评论内容')created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')post = models.ForeignKey(Post, on_delete=models.CASCADE, related_name='comments', verbose_name='所属帖子')reply_to = models.ForeignKey('self', on_delete=models.SET_NULL, related_name='replies', verbose_name='回复目标', null=True, blank=True)author = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='comments', verbose_name='作者')like_number = models.IntegerField(default=0, verbose_name='点赞数')reply_number = models.IntegerField(default=0, verbose_name='回复数')def __str__(self):return f"{self.author.nickname}的{self.content}"def delete(self, *args, **kwargs):# 当删除一个评论时，将指向它的所有回复评论的reply_to字段设置为NULLif self.reply_to:self.reply_to.replies.update(reply_to=None)super().delete(*args, **kwargs)# 通知
class Notification(models.Model):id = models.BigAutoField(primary_key=True)sender = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='sent_notifications', verbose_name='事件发送者')receiver = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='notifications', verbose_name='接收用户')content = models.TextField(verbose_name='通知内容', null=True, blank=True)status = models.BooleanField(default=False, verbose_name='状态') # True 表示已读，False 表示未读created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')# 上传的图片
class Image(models.Model):id = models.BigAutoField(primary_key=True)image = models.CharField(max_length=255, verbose_name='图片url')created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')uploader = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='images', verbose_name='上传者')关系模型另外放在relations.py
"""帖子图片"""
class PostImage(models.Model):post = models.ForeignKey(Post, on_delete=models.CASCADE, related_name='post_images')image = models.ForeignKey(Image, on_delete=models.CASCADE, related_name='post_images')# 额外排序字段order = models.PositiveIntegerField(default=0)class Meta:# 确保图片的顺序是按照升序排列的ordering = ['order']# 确保不会有重复的帖子-图片对unique_together = ('post', 'image')"""用户举报（帖子、圈子、评论、用户）"""
class Report(models.Model):id = models.BigAutoField(primary_key=True)report_type = models.CharField(max_length=50, choices=[('post', '帖子'), ('circle', '圈子'), ('comment', '评论'), ('user', '用户')], verbose_name='举报类型')reason = models.TextField(verbose_name='举报理由', null=True, blank=True)status = models.CharField(max_length=50, choices=[('pending', '待处理'), ('approved', '已批准'), ('rejected', '已拒绝')], default='pending', verbose_name='举报状态')created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')reporter = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='reports', verbose_name='举报者')reported_object = models.ForeignKey(Post if report_type == 'post' else Circle if report_type == 'circle' else Comment if report_type == 'comment' else CustomUser, on_delete=models.CASCADE, related_name='reporters', verbose_name='被举报对象')def __str__(self):if self.report_type == 'post':return f"{self.reporter.nickname}:id({self.reporter.id})举报了帖子{self.reported_object.title}:id({self.reported_object.id})"elif self.report_type == 'circle':return f"{self.reporter.nickname}:id({self.reporter.id})举报了{self.reported_object.name}:id({self.reported_object.id})"elif self.report_type == 'comment':return f"{self.reporter.nickname}:id({self.reporter.id})举报了{self.reported_object.content}:id({self.reported_object.id})"elif self.report_type == 'user':return f"{self.reporter.nickname}:id({self.reporter.id})举报了用户{self.reported_object.nickname}:id({self.reported_object.id})""""用户点赞（帖子、评论、圈子、用户）"""
class UserLikePost(models.Model):user = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='liked_posts')post = models.ForeignKey(Post, on_delete=models.CASCADE, related_name='likers')created_at = models.DateTimeField(auto_now_add=True, verbose_name='点赞时间')class Meta:unique_together = ('user', 'post')def __str__(self):return f"{self.user.nickname} 点赞了 {self.post.title}"class UserLikeComment(models.Model):user = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='liked_comments')comment = models.ForeignKey(Comment, on_delete=models.CASCADE, related_name='likers')created_at = models.DateTimeField(auto_now_add=True, verbose_name='点赞时间')class Meta:unique_together = ('user', 'comment')def __str__(self):return f"{self.user.nickname} 点赞了 {self.comment.content}"class UserLikeCircle(models.Model):user = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='liked_circles')circle = models.ForeignKey(Circle, on_delete=models.CASCADE, related_name='likers')created_at = models.DateTimeField(auto_now_add=True, verbose_name='点赞时间')class Meta:unique_together = ('user', 'circle')def __str__(self):return f"{self.user.nickname} 点赞了 {self.circle.name}"class UserLikeUser(models.Model):user = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='liked_users')liked_user = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='likers')created_at = models.DateTimeField(auto_now_add=True, verbose_name='点赞时间')class Meta:unique_together = ('user', 'liked_user')def __str__(self):return f"{self.user.nickname} 点赞了 {self.liked_user.nickname}""""用户收藏（帖子、圈子、评论）"""
class UserCollectPost(models.Model):user = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='collected_posts')post = models.ForeignKey(Post, on_delete=models.CASCADE, related_name='collecters')created_at = models.DateTimeField(auto_now_add=True, verbose_name='收藏时间')class Meta:unique_together = ('user', 'post')def __str__(self):return f"{self.user.nickname} 收藏了 {self.post.title}"class UserCollectCircle(models.Model):user = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='collected_circles')circle = models.ForeignKey(Circle, on_delete=models.CASCADE, related_name='collecters')created_at = models.DateTimeField(auto_now_add=True, verbose_name='收藏时间')class Meta:unique_together = ('user', 'circle')def __str__(self):return f"{self.user.nickname} 收藏了 {self.circle.name}"class UserCollectComment(models.Model):user = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='collected_comments')comment = models.ForeignKey(Comment, on_delete=models.CASCADE, related_name='collecters')created_at = models.DateTimeField(auto_now_add=True, verbose_name='收藏时间')class Meta:unique_together = ('user', 'comment')def __str__(self):return f"{self.user.nickname} 收藏了 {self.comment.content}""""用户关注（用户、圈子）"""
class UserFollowUser(models.Model):follower = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='following_users')following = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='followers')created_at = models.DateTimeField(auto_now_add=True, verbose_name='关注时间')class Meta:unique_together = ('follower', 'following') # 确保关注关系是唯一的，防止重复关注def __str__(self):return f"{self.follower.nickname} 关注 {self.following.nickname}"class UserFollowCircle(models.Model):follower = models.ForeignKey(CustomUser, on_delete=models.CASCADE, related_name='following_circles')following = models.ForeignKey(Circle, on_delete=models.CASCADE, related_name='followers')created_at = models.DateTimeField(auto_now_add=True, verbose_name='关注时间')class Meta:unique_together = ('follower', 'following')def __str__(self):return f"{self.follower.nickname} 关注 {self.following.name}"
前端响应模型设计
对前端响应模型进行封装，resfront.py
异常处理配置中间件
CMarket/app/middleware.py
CMarket/cmarket/settings.py
