feat:初始化工程

schemas/paginate_query.py

@@ -0,0 +1,27 @@
+from sqlalchemy import select, func
+from sqlalchemy.orm import Session
+
+from schemas.pagination import PageResult
+
+
+def paginate_query(db: Session, query, current_page: int = 1, page_size: int = 10) -> PageResult:
+    """通用分页查询函数"""
+    # 计算总记录数
+    total = db.execute(select(func.count()).select_from(query.subquery())).scalar_one_or_none() or 0
+
+    # 计算总页数
+    total_pages = (total + page_size - 1) // page_size if page_size != 0 else 0
+
+    # 执行分页查询
+    results = db.execute(query.offset((current_page - 1) * page_size).limit(page_size)).all()
+
+    # 转换为字典列表
+    records = [row._asdict() if hasattr(row, "_asdict") else dict(row) for row in results]
+
+    return PageResult(
+        current=current_page,
+        size=page_size,
+        total=total,
+        pages=total_pages,
+        records=records
+    )