fix:修复平均兑换汇率计算

@@ -71,7 +71,12 @@ func (cashPoolService *CashPoolService) CreateCashPool(createCashPoolCommand *co
 		cashPoolRepository = value
 	}
 	// 计算系统平均兑换汇率
-	rate, _ := strconv.ParseFloat(fmt.Sprintf("%.2f", systemExchangedCash / systemExchangedSuMoney), 64)   // 平均兑换汇率
+	var rate float64
+	if systemExchangedSuMoney == 0 {
+		rate = 0
+	} else {
+		rate, _ = strconv.ParseFloat(fmt.Sprintf("%.2f", systemExchangedCash / systemExchangedSuMoney), 64)   // 平均兑换汇率
+	}
 	// 新建现金池
 	newCashPool := &domain.CashPool{
 		CompanyId: createCashPoolCommand.CompanyId,

@@ -130,7 +130,7 @@ func (dao *EmployeeDao) CalculateSystemSuMoney(companyId int64) (map[string] int
 	}
 	// 系统已兑换现金素币
 	suMoneyTransactionRecordModel := new(models.SuMoneyTransactionRecord)
-	if err := tx.Model(suMoneyTransactionRecordModel).Join("JOIN employees AS e ON e.uid = (su_money_transaction_records.employee->>'uid')::bigint").
+	if err := tx.Model(suMoneyTransactionRecordModel).Join("JOIN employees AS e ON e.uid = (su_money_transaction_record.employee->>'uid')::bigint").
 		ColumnExpr("sum(su_money_transaction_record.su_money) AS system_changed_su_money").
 		Where("e.company_id = ?", companyId).
 		Where("e.status = ?", 1).
@@ -153,7 +153,7 @@ func (dao *EmployeeDao) CalculateSystemCash(companyId int64) (map[string] interf
 	)
 	// 系统已兑换现金
 	suMoneyTransactionRecordModel := new(models.SuMoneyTransactionRecord)
-	if err := tx.Model(suMoneyTransactionRecordModel).Join("JOIN employees AS e ON e.uid = (su_money_transaction_records.employee->>'uid')::bigint").
+	if err := tx.Model(suMoneyTransactionRecordModel).Join("JOIN employees AS e ON e.uid = (su_money_transaction_record.employee->>'uid')::bigint").
 		ColumnExpr("sum(su_money_transaction_record.cash) AS system_exchanged_cash").
 		Where("e.company_id = ?", companyId).
 		//Where(`e.status = ?`, 1).
@@ -165,7 +165,7 @@ func (dao *EmployeeDao) CalculateSystemCash(companyId int64) (map[string] interf
 	cashPool := new(models.CashPool)
 	if err := tx.Model(cashPool).
 		Column("un_exchange_cash").
-		Where("cash_pools.company_id = ?", companyId).
+		Where("cash_pool.company_id = ?", companyId).
 		Order("id DESC").
 		Limit(1).
 		Select(&systemUnExchangeCash) ; err != nil {