Initial commit

main/models.py

@@ -0,0 +1,63 @@
+from django.db import models
+from django.contrib.auth.models import User
+
+class File(models.Model):
+    owner = models.ForeignKey(User, on_delete=models.CASCADE, related_name='files')
+    file = models.FileField(upload_to='uploads/')
+    shared_with = models.ManyToManyField(User, related_name='shared_files', blank=True)
+    created_at = models.DateTimeField(auto_now_add=True)
+    description = models.TextField(blank=True)
+
+    def __str__(self):
+        return f"{self.file.name}（{self.owner.username}）"
+
+class Message(models.Model):
+    sender = models.ForeignKey(User, on_delete=models.CASCADE, related_name='sent_messages')
+    recipients = models.ManyToManyField(User, related_name='received_messages')
+    content = models.TextField()
+    created_at = models.DateTimeField(auto_now_add=True)
+    file = models.ForeignKey(File, on_delete=models.SET_NULL, null=True, blank=True)
+
+    def __str__(self):
+        return f"来自 {self.sender.username} 的消息"
+
+    class Meta:
+        ordering = ['-created_at']
+
+class PublicMessage(models.Model):
+    name = models.CharField(max_length=100, default="公共", editable=False)
+    content = models.TextField()
+    created_at = models.DateTimeField(auto_now_add=True)
+    ip_address = models.GenericIPAddressField(null=True, blank=True)
+
+    def __str__(self):
+        return f"来自 {self.name or '匿名用户'} 的公开留言"
+
+class PublicFile(models.Model):
+    name = models.CharField(max_length=100, default="公共", editable=False)
+    file = models.FileField(upload_to='public_uploads/')
+    description = models.TextField(blank=True)
+    created_at = models.DateTimeField(auto_now_add=True)
+    ip_address = models.GenericIPAddressField(null=True, blank=True)
+
+    def __str__(self):
+        return f"来自 {self.name or '匿名用户'} 的公开文件"
+
+class Friendship(models.Model):
+    STATUS_CHOICES = [
+        ('pending', '等待中'),
+        ('accepted', '已接受'),
+        ('rejected', '已拒绝'),
+    ]
+
+    from_user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='friendship_requests_sent')
+    to_user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='friendship_requests_received')
+    status = models.CharField(max_length=10, choices=STATUS_CHOICES, default='pending')
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        unique_together = ('from_user', 'to_user')
+        ordering = ['-created_at']
+
+    def __str__(self):
+        return f"{self.from_user.username} -> {self.to_user.username} ({self.status})"