小程序后端增强绑定能力并支持多设备列表

mini-program/app/dao/binding.py

@@ -252,6 +252,40 @@ class BindingDAO(BaseDAO):
             .first()
         )
 
+    def list_by_user(self, user_id: int, limit: int = 20, cursor: int = None) -> list[Mapping]:
+        params = {"user_id": user_id, "limit": limit + 1}
+        where = "db.owner_user_id = :user_id AND db.status = 1"
+        if cursor is not None:
+            where += " AND db.id < :cursor"
+            params["cursor"] = cursor
+
+        rows = (
+            self.db.execute(
+                text(
+                    f"""
+                    SELECT
+                      db.id,
+                      db.device_id,
+                      db.child_id,
+                      c.child_name,
+                      db.status,
+                      db.bound_at
+                    FROM device_bindings AS db
+                    LEFT JOIN children AS c
+                      ON c.child_id = db.child_id
+                     AND c.status = 1
+                    WHERE {where}
+                    ORDER BY db.id DESC
+                    LIMIT :limit
+                    """
+                ),
+                params,
+            )
+            .mappings()
+            .all()
+        )
+        return rows
+
     def get_by_device(self, device_id: str, user_id: int) -> Optional[Mapping]:
         return (
             self.db.execute(

mini-program/app/routers/bindings.py

@@ -1,7 +1,7 @@
 import logging
 from datetime import datetime
 
-from fastapi import APIRouter, Depends, HTTPException, Request, status
+from fastapi import APIRouter, Depends, HTTPException, Query, Request, status
 from pydantic import BaseModel
 
 try:
@@ -45,6 +45,20 @@ class BindingGetResponse(BaseModel):
     bound_at: datetime
 
 
+class BindingListItem(BaseModel):
+    device_id: str
+    child_id: int | None
+    child_name: str | None = None
+    status: int
+    bound_at: datetime
+
+
+class BindingListResponse(BaseModel):
+    items: list[BindingListItem]
+    total: int
+    next_cursor: int | None = None
+
+
 class BindHistoryItem(BaseModel):
     device_id: str
     child_id: int | None
@@ -140,6 +154,30 @@ def get_current_binding(
     return binding
 
 
+@router.get("", response_model=BindingListResponse)
+def list_bindings(
+    request: Request,
+    cursor: int | None = Query(default=None, ge=1),
+    limit: int = Query(default=20, ge=1, le=100),
+    current_user_id: int = Depends(get_current_user_id),
+    db=Depends(get_db_session),
+) -> BindingListResponse:
+    service = BindingService(db)
+    rows, has_more = service.list_bindings(current_user_id, limit, cursor)
+    next_cursor = int(rows[-1]["id"]) if has_more and rows else None
+    items = [
+        BindingListItem(
+            device_id=row["device_id"],
+            child_id=row["child_id"],
+            child_name=row["child_name"],
+            status=row["status"],
+            bound_at=row["bound_at"],
+        )
+        for row in rows
+    ]
+    return BindingListResponse(items=items, total=len(items), next_cursor=next_cursor)
+
+
 @router.get("/{device_id}", response_model=BindingGetResponse)
 def get_binding(
     device_id: str,

mini-program/app/service/binding.py

@@ -31,6 +31,12 @@ class BindingService:
     def get_current_binding(self, user_id: int) -> Optional[Mapping]:
         return self.dao.get_current_by_user(user_id)
 
+    def list_bindings(self, user_id: int, limit: int = 20, cursor: int = None) -> tuple[list, bool]:
+        rows = self.dao.list_by_user(user_id, limit, cursor)
+        has_more = len(rows) > limit
+        rows = rows[:limit]
+        return rows, has_more
+
     def direct_bind(self, device_id: str, child_id: int | None, user_id: int) -> Mapping:
         self.dao.direct_bind(device_id, child_id, user_id)
         return {"device_id": device_id, "child_id": child_id}