feat: 城市手册后端完成 - 用户/区域/内容/服务/审核系统

city-manual/backend/content/models.py

@@ -0,0 +1,276 @@
+from django.db import models
+from django.conf import settings
+from django.utils import timezone
+
+
+class Article(models.Model):
+    """文章内容表"""
+    CONTENT_TYPE_CHOICES = [
+        ('city_info', '城市信息'),
+        ('history', '历史'),
+        ('culture', '文化'),
+        ('practical', '实用信息'),
+        ('life', '生活指南'),
+    ]
+    
+    AUDIT_STATUS_CHOICES = [
+        ('pending', '待审核'),
+        ('approved', '通过'),
+        ('rejected', '拒绝'),
+    ]
+    
+    PUBLISH_STATUS_CHOICES = [
+        ('draft', '未发布'),
+        ('published', '已发布'),
+    ]
+    
+    title = models.CharField('标题', max_length=200)
+    content = models.TextField('内容')
+    region = models.ForeignKey(
+        'regions.Region',
+        on_delete=models.CASCADE,
+        related_name='articles',
+        verbose_name='所属区域'
+    )
+    content_type = models.CharField('内容类型', max_length=20, choices=CONTENT_TYPE_CHOICES)
+    author = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+        related_name='articles',
+        verbose_name='作者'
+    )
+    
+    # 版主审核
+    moderator_reviewer = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        null=True,
+        blank=True,
+        on_delete=models.SET_NULL,
+        related_name='reviewed_articles',
+        verbose_name='版主审核人'
+    )
+    moderator_reviewed_at = models.DateTimeField('版主审核时间', null=True, blank=True)
+    moderator_status = models.CharField('版主审核状态', max_length=20, choices=AUDIT_STATUS_CHOICES, default='pending')
+    moderator_comment = models.TextField('版主审核意见', blank=True)
+    
+    # AI 审核
+    ai_status = models.CharField('AI 审核状态', max_length=20, choices=AUDIT_STATUS_CHOICES, default='pending')
+    ai_reviewed_at = models.DateTimeField('AI 审核时间', null=True, blank=True)
+    ai_comment = models.TextField('AI 审核意见', blank=True)
+    
+    # 发布状态
+    publish_status = models.CharField('发布状态', max_length=20, choices=PUBLISH_STATUS_CHOICES, default='draft')
+    
+    created_at = models.DateTimeField('创建时间', auto_now_add=True)
+    updated_at = models.DateTimeField('更新时间', auto_now=True)
+    
+    class Meta:
+        verbose_name = '文章'
+        verbose_name_plural = '文章'
+        ordering = ['-created_at']
+    
+    def __str__(self):
+        return self.title
+    
+    def submit_for_moderator_review(self):
+        """提交版主审核"""
+        self.moderator_status = 'pending'
+        self.save()
+    
+    def approve_by_moderator(self, moderator, comment=''):
+        """版主审核通过"""
+        self.moderator_reviewer = moderator
+        self.moderator_status = 'approved'
+        self.moderator_comment = comment
+        self.moderator_reviewed_at = timezone.now()
+        self.save()
+        # 自动提交到 AI 审核
+        self.submit_for_ai_review()
+    
+    def reject_by_moderator(self, moderator, comment=''):
+        """版主审核拒绝"""
+        self.moderator_reviewer = moderator
+        self.moderator_status = 'rejected'
+        self.moderator_comment = comment
+        self.moderator_reviewed_at = timezone.now()
+        self.publish_status = 'draft'
+        self.save()
+    
+    def submit_for_ai_review(self):
+        """提交 AI 审核（版主通过后自动调用）"""
+        if self.moderator_status == 'approved':
+            self.ai_status = 'pending'
+            self.save()
+    
+    def approve_by_ai(self, comment=''):
+        """AI 审核通过"""
+        self.ai_status = 'approved'
+        self.ai_comment = comment
+        self.ai_reviewed_at = timezone.now()
+        self.publish_status = 'published'
+        self.save()
+    
+    def reject_by_ai(self, comment=''):
+        """AI 审核拒绝"""
+        self.ai_status = 'rejected'
+        self.ai_comment = comment
+        self.ai_reviewed_at = timezone.now()
+        self.publish_status = 'draft'
+        self.save()
+
+
+class Comment(models.Model):
+    """评论表"""
+    AUDIT_STATUS_CHOICES = [
+        ('pending', '待审核'),
+        ('approved', '通过'),
+        ('rejected', '拒绝'),
+    ]
+    
+    content = models.TextField('评论内容')
+    article = models.ForeignKey(
+        Article,
+        on_delete=models.CASCADE,
+        related_name='comments',
+        verbose_name='文章',
+        null=True,
+        blank=True
+    )
+    service = models.ForeignKey(
+        'services.FeaturedService',
+        on_delete=models.CASCADE,
+        related_name='comments',
+        verbose_name='特色服务',
+        null=True,
+        blank=True
+    )
+    author = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+        related_name='comments',
+        verbose_name='评论者'
+    )
+    ai_status = models.CharField('AI 审核状态', max_length=20, choices=AUDIT_STATUS_CHOICES, default='pending')
+    ai_reviewed_at = models.DateTimeField('AI 审核时间', null=True, blank=True)
+    is_visible = models.BooleanField('是否显示', default=False)
+    created_at = models.DateTimeField('创建时间', auto_now_add=True)
+    
+    class Meta:
+        verbose_name = '评论'
+        verbose_name_plural = '评论'
+        ordering = ['-created_at']
+    
+    def __str__(self):
+        return f"{self.author.username} 的评论"
+    
+    def approve_by_ai(self):
+        """AI 审核通过"""
+        self.ai_status = 'approved'
+        self.ai_reviewed_at = timezone.now()
+        self.is_visible = True
+        self.save()
+    
+    def reject_by_ai(self):
+        """AI 审核拒绝"""
+        self.ai_status = 'rejected'
+        self.ai_reviewed_at = timezone.now()
+        self.is_visible = False
+        self.save()
+
+
+class Like(models.Model):
+    """点赞表"""
+    user = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+        related_name='likes'
+    )
+    article = models.ForeignKey(
+        Article,
+        on_delete=models.CASCADE,
+        related_name='likes',
+        null=True,
+        blank=True
+    )
+    service = models.ForeignKey(
+        'services.FeaturedService',
+        on_delete=models.CASCADE,
+        related_name='likes',
+        null=True,
+        blank=True
+    )
+    created_at = models.DateTimeField('创建时间', auto_now_add=True)
+    
+    class Meta:
+        verbose_name = '点赞'
+        verbose_name_plural = '点赞'
+        unique_together = ['user', 'article', 'service']
+    
+    def __str__(self):
+        return f"{self.user.username} 点赞"
+
+
+class Rating(models.Model):
+    """评分表"""
+    user = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+        related_name='ratings'
+    )
+    region = models.ForeignKey(
+        'regions.Region',
+        on_delete=models.CASCADE,
+        related_name='ratings',
+        null=True,
+        blank=True
+    )
+    service = models.ForeignKey(
+        'services.FeaturedService',
+        on_delete=models.CASCADE,
+        related_name='ratings',
+        null=True,
+        blank=True
+    )
+    score = models.PositiveSmallIntegerField('评分', choices=[(i, f'{i}星') for i in range(1, 6)])
+    comment = models.TextField('评价', blank=True)
+    created_at = models.DateTimeField('创建时间', auto_now_add=True)
+    
+    class Meta:
+        verbose_name = '评分'
+        verbose_name_plural = '评分'
+        unique_together = ['user', 'region', 'service']
+    
+    def __str__(self):
+        return f"{self.user.username} 评分 {self.score}星"
+
+
+class Favorite(models.Model):
+    """收藏表"""
+    user = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+        related_name='favorites'
+    )
+    region = models.ForeignKey(
+        'regions.Region',
+        on_delete=models.CASCADE,
+        related_name='favorited_by',
+        null=True,
+        blank=True
+    )
+    service = models.ForeignKey(
+        'services.FeaturedService',
+        on_delete=models.CASCADE,
+        related_name='favorited_by',
+        null=True,
+        blank=True
+    )
+    created_at = models.DateTimeField('创建时间', auto_now_add=True)
+    
+    class Meta:
+        verbose_name = '收藏'
+        verbose_name_plural = '收藏'
+        unique_together = ['user', 'region', 'service']
+    
+    def __str__(self):
+        return f"{self.user.username} 收藏"