fix(approve): 修复审批流程为空时的异常处理

liyong

2026-04-30 c2ad2126d6f8423e0a5e6e20bbb91ef6bb1cffc0

 src/main/java/com/ruoyi/purchase/controller/PurchaseLedgerController.java

@@ -189,6 +189,14 @@
    }

    /**
     * 查询采购台账和产品父子列表
     */
    @GetMapping("/getPurchaseByCode")
    public PurchaseLedgerDto getPurchaseByCode(PurchaseLedgerDto purchaseLedgerDto) {
        return purchaseLedgerService.getPurchaseByCode(purchaseLedgerDto);
    }

    /**
     * 删除采购台账
     */
    @Log(title = "采购台账", businessType = BusinessType.DELETE)