feat(bpm): 增加客户合同列表查询功能并优化采购和退款相关逻辑

- 在 BpmOAContractController 中添加了 getContractByCustomerId 方法，用于获取指定客户的合同列表
- 在 BpmOAContractService 接口中添加了 getListByCustomerId 方法
- 在 BpmOAContractServiceImpl 中实现了 getListByCustomerId 方法
- 优化了 BpmOAProcureController 中的项目编号判断逻辑
- 改进了 BpmOARefundServiceImpl 中的 getListByOrderNo 方法，增加了非空判断
- 在 BpmProcessInstanceServiceImpl 中的 transform 方法中添加了空字符串判断

yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/ErrorCodeConstants.java

@@ -61,6 +61,7 @@ public interface ErrorCodeConstants {
     ErrorCode OA_PROJECT_NOT_EXISTS = new ErrorCode(1_009_001_124, "项目申请不存在");
     ErrorCode OA_CONTRACT_INVOICE_AMOUNT_LACK = new ErrorCode(1_009_001_125, "该合同的开票余额不足！");
     ErrorCode OA_PAYMENT_NOT_EXISTS = new ErrorCode(1_009_001_126, "付款申请不存在");
+    ErrorCode OA_RECEIPT_NOT_EXISTS = new ErrorCode(1_009_001_127, "回款申请不存在");
 
     // ========== 流程模型 1-009-002-000 ==========
     ErrorCode MODEL_KEY_EXISTS = new ErrorCode(1_009_002_000, "已经存在流程标识为【{}】的流程");

yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/BpmOAContractController.java

@@ -159,5 +159,14 @@ public class BpmOAContractController {
         return success(respVO);
     }
 
+    @GetMapping("/getContractByCustomerId")
+    @Operation(summary = "获得指定客户的合同列表")
+    @Parameter(name = "customerId", description = "客户编号", required = true)
+    public CommonResult<List<BpmOAContractRespVO>> getListByCustomerId(@RequestParam("customerId") Long customerId) {
+
+        List<BpmOAContractDO> respVOs = contractService.getListByCustomerId(customerId);
+
+        return success(BeanUtils.toBean(respVOs, BpmOAContractRespVO.class));
+    }
 
 }

yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/oa/BpmOAProcureController.java

@@ -12,6 +12,7 @@ import cn.iocoder.yudao.module.system.api.project.dto.ProjectDTO;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.tags.Tag;
+import org.apache.logging.log4j.util.Strings;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 
@@ -63,7 +64,7 @@ public class BpmOAProcureController {
     public CommonResult<BpmOAProcureRespVO> getOaProcure(@RequestParam("id") Long id) {
         BpmOAProcureDO oaProcure = bpmOaProcureService.getOaProcure(id);
         BpmOAProcureRespVO respVO = BpmOAProcureConvert.INSTANCE.convert(oaProcure);
-        if (respVO != null && respVO.getProjectNo() != null) {
+        if (respVO != null && Strings.isNotEmpty(respVO.getProjectNo())) {
             ProjectDTO projectDTO = projectApi.getProject(respVO.getProjectNo()).getCheckedData();
             respVO.setProjectName(projectDTO.getName());
         }
@@ -86,7 +87,7 @@ public class BpmOAProcureController {
 
         BpmOAProcureDO oaProcure = bpmOaProcureService.getByProcessInstanceId(processInstanceId);
         BpmOAProcureRespVO respVO = BpmOAProcureConvert.INSTANCE.convert(oaProcure);
-        if (respVO != null && respVO.getProjectNo() != null) {
+        if (respVO != null && Strings.isNotEmpty(respVO.getProjectNo())) {
             ProjectDTO projectDTO = projectApi.getProject(respVO.getProjectNo()).getCheckedData();
             respVO.setProjectName(projectDTO.getName());
         }

yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/oa/BpmOAContractService.java

@@ -104,4 +104,11 @@ public interface BpmOAContractService {
      * @return 合同列表
      */
     List<BpmOAContractDO> getContractList(BpmOAContractVO respVO);
+
+    /**
+     * 获得指定客户合同列表
+     * @param customerId 客户编号
+     * @return 合同列表
+     */
+    List<BpmOAContractDO> getListByCustomerId(Long customerId);
 }

yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/oa/BpmOAContractServiceImpl.java

@@ -325,6 +325,14 @@ public class BpmOAContractServiceImpl extends BpmOABaseService implements BpmOAC
                 .eq(BpmOAContractDO::getResult, BpmProcessInstanceResultEnum.APPROVE.getResult()));
     }
 
+    @Override
+    public List<BpmOAContractDO> getListByCustomerId(Long customerId) {
+
+        return contractMapper.selectList(new LambdaQueryWrapperX<BpmOAContractDO>()
+                .eq(BpmOAContractDO::getCustomerId, customerId)
+                .eq(BpmOAContractDO::getResult, BpmProcessInstanceResultEnum.APPROVE.getResult()));
+    }
+
     public static BigDecimal calculatePercentageChange(Object today, Object yesterday) {
 
         // 转换为 BigDecimal 进行高精度计算

yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/oa/BpmOARefundServiceImpl.java

@@ -28,6 +28,7 @@ import java.math.BigDecimal;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.stream.Collectors;
 
 import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
@@ -203,7 +204,7 @@ public class BpmOARefundServiceImpl extends BpmOABaseService implements BpmOARef
     public List<BpmOARefundDO> getListByOrderNo(List<String> orderNos) {
         return refundMapper.selectList(new LambdaQueryWrapperX<BpmOARefundDO>()
                 .inIfPresent(BpmOARefundDO::getOrderNo, orderNos)
-                .eq(BpmOARefundDO::getStatus, 0));
+                .eq(Objects.nonNull(orderNos) ,BpmOARefundDO::getStatus, 0));
     }
 
     @Override