新增小程序后端代码，包括数据库、路由、服务层等。

小程序前后端打通，包括登录、注册、绑定设备、查询绑定信息，修改小朋友名称等功能。
2026-04-13 01:54:57 +08:00
parent 33715373b0
commit a22fcafea9
46 changed files with 3713 additions and 268 deletions
--- a/mini-program/app/dao/child.py
+++ b/mini-program/app/dao/child.py
@@ -0,0 +1,95 @@
+from collections.abc import Mapping
+from datetime import date
+from typing import Optional
+
+from sqlalchemy import text
+
+from app.dao import BaseDAO
+
+
+class ChildDAO(BaseDAO):
+    def create(
+        self,
+        user_id: int,
+        child_name: str,
+        child_gender: int = 2,
+        child_birthday: Optional[date] = None,
+    ) -> int:
+        result = self.db.execute(
+            text(
+                """
+                INSERT INTO children (parent_user_id, child_name, child_gender, child_birthday, status)
+                VALUES (:user_id, :child_name, :child_gender, :child_birthday, 1)
+                """
+            ),
+            {"user_id": user_id, "child_name": child_name, "child_gender": child_gender, "child_birthday": child_birthday},
+        )
+        child_id = int(result.lastrowid)
+        self.commit()
+        return child_id
+
+    def get_by_id(self, child_id: int) -> Optional[Mapping]:
+        return (
+            self.db.execute(
+                text("SELECT * FROM children WHERE child_id = :child_id"),
+                {"child_id": child_id},
+            )
+            .mappings()
+            .first()
+        )
+
+    def list_by_parent(self, user_id: int, limit: int = 20, cursor: int = None) -> list[Mapping]:
+        params = {"user_id": user_id, "limit": limit + 1}
+        where = "parent_user_id = :user_id AND status = 1"
+        if cursor:
+            where += " AND child_id < :cursor"
+            params["cursor"] = cursor
+
+        rows = (
+            self.db.execute(
+                text(
+                    f"""
+                    SELECT * FROM children
+                    WHERE {where}
+                    ORDER BY child_id DESC
+                    LIMIT :limit
+                    """
+                ),
+                params,
+            )
+            .mappings()
+            .all()
+        )
+        return rows
+
+    def update(
+        self,
+        child_id: int,
+        child_name: Optional[str] = None,
+        child_gender: Optional[int] = None,
+        child_birthday: Optional[date] = None,
+    ) -> None:
+        self.db.execute(
+            text(
+                """
+                UPDATE children
+                SET child_name = COALESCE(:child_name, child_name),
+                    child_gender = COALESCE(:child_gender, child_gender),
+                    child_birthday = COALESCE(:child_birthday, child_birthday)
+                WHERE child_id = :child_id
+                """
+            ),
+            {"child_id": child_id, "child_name": child_name, "child_gender": child_gender, "child_birthday": child_birthday},
+        )
+        self.commit()
+
+    def has_access(self, child_id: int, user_id: int) -> bool:
+        return (
+            self.db.execute(
+                text(
+                    "SELECT 1 FROM children WHERE child_id = :child_id AND parent_user_id = :user_id AND status = 1"
+                ),
+                {"child_id": child_id, "user_id": user_id},
+            ).scalar_one_or_none()
+            is not None
+        )