@

feat: 修改制度金额时同步更新该制度下所有员工额度

update() 检测 amount 变更 → 用 institution_id 批量更新
pay_expense_quota 的 total_amount + available_amount（按差额递增）。
仅 QUOTA_ACTIVE/QUOTA_EXHAUSTED 状态的额度同步变动。
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java/src/main/java/com/payment/platform/module/payment/expense/institution/service/InstitutionService.java

@@ -698,7 +698,9 @@ public class InstitutionService {
         // 复制非 null 属性到已有实体 (排除 id 和 institutionId 避免覆盖)
         BeanUtil.copyProperties(dto, existing, "id", "institutionId");
 
-        // 金额/限额单独处理，确保变更生效
+        // 金额/限额单独处理，确保变更生效（先记旧值再设新值）
+        BigDecimal oldAmount = existing.getAmount();
+        BigDecimal oldSingleLimit = existing.getSingleLimit();
         if (dto.getAmount() != null) existing.setAmount(dto.getAmount());
         if (dto.getSingleLimit() != null) existing.setSingleLimit(dto.getSingleLimit());
 
@@ -723,6 +725,21 @@ public class InstitutionService {
 
         institutionMapper.updateById(existing);
 
+        // 制度金额变更 → 同步更新该制度下所有员工额度的 total_amount + available_amount
+        if (dto.getAmount() != null && oldAmount != null
+                && dto.getAmount().compareTo(oldAmount) != 0) {
+            BigDecimal delta = dto.getAmount().subtract(oldAmount);
+            int updated = quotaMapper.update(null,
+                    new com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper<QuotaEntity>()
+                            .eq(QuotaEntity::getInstitutionId, existing.getInstitutionId())
+                            .setSql("total_amount = total_amount + " + delta.toPlainString())
+                            .setSql("available_amount = CASE WHEN status IN ('QUOTA_ACTIVE','QUOTA_EXHAUSTED') "
+                                    + "THEN available_amount + " + delta.toPlainString()
+                                    + " ELSE available_amount END"));
+            log.info("制度金额变更，已同步更新 {} 条额度: {} → {}, delta={}",
+                    updated, oldAmount, dto.getAmount(), delta);
+        }
+
         // 制度生效/失效时同步更新该制度下所有额度状态
         // 对应 Python modify_institution_service 第 922-937 行
         if (dto.getEffective() != null) {