编写后端

backend/app/models/category.py

@@ -0,0 +1,22 @@
+"""
+分类模型
+"""
+import uuid
+from tortoise import fields, models
+
+
+class Category(models.Model):
+    """分类模型"""
+
+    id = fields.UUIDField(pk=True, default=uuid.uuid4)
+    name = fields.CharField(max_length=50, unique=True, description="分类名称")
+    slug = fields.CharField(max_length=50, unique=True, description="URL别名")
+    description = fields.TextField(null=True, description="分类描述")
+    created_at = fields.DatetimeField(auto_now_add=True, description="创建时间")
+
+    class Meta:
+        table = "categories"
+        ordering = ["name"]
+
+    def __str__(self):
+        return self.name