导入台账数据问题

app/service/ledger.js

@@ -879,9 +879,9 @@ module.exports = app => {
                     x.add_times = 0;
                 });
                 await conn.delete(this.tableName, { tender_id: this.ctx.tender.id });
-                await conn.insert(this.ctx.service.ledger.tableName, ledger);
+                if (ledger.length > 0) await conn.insert(this.ctx.service.ledger.tableName, ledger);
                 await conn.delete(this.ctx.service.pos.tableName, { tid: this.ctx.tender.id });
-                await conn.insert(this.ctx.service.pos.tableName, pos);
+                if (pos.length > 0) await conn.insert(this.ctx.service.pos.tableName, pos);
                 this._removeCacheMaxLid(this.ctx.tender.id);
                 await conn.commit();
             } catch (err) {