使用三个表进行内部联接

问题描述

我尝试协会

Currency_Info.hasMany(DEAL_INFO,{foreignKey: 'selling_CURRENCY'})
COUNTERPARTY_INFO.hasMany(DEAL_INFO,{foreignKey: 'COUNTER_PARTY_CODE'})
DEAL_INFO.belongsTo(Currency_Info,{foreignKey: 'selling_CURRENCY',targetKey: 'Ccy_Code'})
DEAL_INFO.belongsTo(COUNTERPARTY_INFO,{foreignKey: 'COUNTER_PARTY_CODE',targetKey: 'COUNTERPARTY_CODE'})



var conCursor = await DEAL_INFO
            .findAll({
               
                    include: [{model: COUNTERPARTY_INFO,required: true,model: Currency_Info,required: true }]
              
              }) 
              .catch((error) => {
                console.log(error.toString());
                res.status(400).send("-1" + error)
            })

但是没有得到想要的结果

通过（DEAL_INFO.selling_CURRENCY = currency.CCY_CODE）内部加入CURRENCY

我如何获得两个内部联接 1.在（DEAL_INFO.selling_CURRENCY = currency.CCY_CODE）上内部加入CURRENCY 2.在（deal_info.counter_party_code = peery_info.counterparty_Code）上内部加入对等方信息

解决方法

您可以在include内使用模型列表

类似这样的东西：

 var conCursor = await DEAL_INFO.findAll({
            include: [
               {model: COUNTERPARTY_INFO,required: true},{model: Currency_Info,required: true }
            ]
          }) 
          .catch((error) => {
            console.log(error.toString());
            res.status(400).send("-1" + error)
        })

希望您得到了答案！