feat:增加分页功能

nl2sql/job_history.py

@@ -7,6 +7,7 @@ from datetime import datetime
 from sqlalchemy import text
 
 from nl2sql.audit import _sanitize
+from utils.pagination import normalize_pagination, pagination_result
 
 
 async def record_job_history(db, result, *, elapsed_ms: float, parameter_summary: dict | None = None) -> None:
@@ -49,9 +50,15 @@ async def record_job_history_safely(db, result, *, elapsed_ms: float, parameter_
     return True
 
 
-async def list_job_history(db, *, page: int = 1, page_size: int = 20, status: str | None = None) -> list[dict]:
+async def list_job_history(db, *, page: int = 1, page_size: int = 10, status: str | None = None) -> dict:
     """分页查询任务历史，只返回执行摘要，不返回 detail 明细。"""
+    page, page_size, offset = normalize_pagination(page, page_size)
     conditions = "WHERE (:status IS NULL OR status = :status)"
+    count_result = await db.execute(
+        text(f"SELECT COUNT(*) AS total FROM nl2sql_job_history {conditions}"),
+        {"status": status},
+    )
+    total = int(count_result.scalar() or 0)
     statement = text(
         f"""
         SELECT id, job_name, status, attempts, error_type, elapsed_ms, create_time
@@ -65,8 +72,13 @@ async def list_job_history(db, *, page: int = 1, page_size: int = 20, status: st
         statement,
         {
             "status": status,
-            "limit": max(1, min(page_size, 100)),
-            "offset": max(0, (page - 1) * page_size),
+            "limit": page_size,
+            "offset": offset,
         },
     )
-    return [dict(row) for row in result.mappings().all()]
+    return pagination_result(
+        [dict(row) for row in result.mappings().all()],
+        total,
+        page=page,
+        page_size=page_size,
+    )