fix:修复现金池为空时统计问题

@@ -2,6 +2,7 @@ package service
 
 import (
 	"github.com/linmadan/egglib-go/core/application"
+	"github.com/linmadan/egglib-go/utils/tool_funs"
 	"gitlab.fjmaimaimai.com/linmadan/mmm-worth/pkg/application/factory"
 	"gitlab.fjmaimaimai.com/linmadan/mmm-worth/pkg/application/statistics/command"
 	"gitlab.fjmaimaimai.com/linmadan/mmm-worth/pkg/domain"
@@ -271,6 +272,27 @@ func (statisticsService *StatisticsService) SystemCashStatistics(systemCashStati
 		employeeDao = value
 	}
 
+	// 判断现金池是否存在
+	var cashPoolRepository domain.CashPoolRepository
+	if value, err  := factory.CreateCashPoolRepository(map[string] interface{} {
+		"transactionContext": transactionContext,
+	}); err != nil {
+		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
+	} else {
+		cashPoolRepository = value
+	}
+
+	countCashPools, _, err := cashPoolRepository.Find(tool_funs.SimpleStructToMap(systemCashStatisticsCommand))
+	if err != nil {
+		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
+	}
+	if countCashPools == 0 {    // 现金池为空时处理
+		return map[string]interface{} {
+			"systemExchangedCash" : 0,
+			"systemUnExchangeCash": 0,
+		}, nil
+	}
+
 	if systemCashStatistics, err := employeeDao.CalculateSystemCash(systemCashStatisticsCommand.CompanyId); err != nil {
 		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
 	} else {

@@ -87,7 +87,7 @@ func (cashPoolService *CashPoolService) CreateCashPool(createCashPoolCommand *co
 		cashPoolRepository = value
 	}
 
-	countCashPools, _, err := cashPoolRepository.Find(tool_funs.SimpleStructToMap(createCashPoolCommand));
+	countCashPools, _, err := cashPoolRepository.Find(tool_funs.SimpleStructToMap(createCashPoolCommand))
 	if err != nil {
 		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
 	}