Question

我正在用JavaScript开发一个项目，我想总结每种付款方式针对该付款类型的金额，例如现金，卡或客户帐户。

我希望表格看起来像这样

付款方式--------金额
现金--------------------- 30
卡---------------------- 200
帐户------------ ----- 2000

运行此代码时

User::Pine

我刚得到第一个结果：

付款方式--------金额
现金--------------------- 30

JSON数据

// Get sales for curent period
getSalesBetween(startTime_b: string, endTime_a: string) {

    if (this._sales) {
        return Promise.resolve(this._sales);
    }

    let startTime = "PAY_" + startTime_b;
    if (!endTime_a) {
        this.endTime_b = startTime;
    } else {
        this.endTime_b = "PAY_" + endTime_a;
    }

    return new Promise(resolve => {

        this.db.query('my_sales_payments_by_date', {
            startkey: startTime,
            endkey: this.endTime_b + '\ufff0',
            include_docs: true
        }).then((result) => {

            console.log('Get sales:: ', JSON.stringify(result));

            this._sales = [];
            this.payment = [];
            let tcash = 0,
                tcard = 0,
                tacc = 0,
                total = 0;
            let paymentType = '';
            let i = 0;

            result.rows.map(row => {
                total = total + row.doc.amount;
                paymentType = row.doc.paymentOption;
                console.log("Total:: ", total);


                if (row.doc.paymentOption = 'cash') {
                    paymentType = 'Cash';
                    tcash = tcash + +row.doc.amount;
                    console.log('cash - ' + row.doc.amount)
                } else if (row.doc.paymentOption = 'card') {
                    paymentType = 'Card';
                    tcard = tcard + +row.doc.amount;
                    console.log('Card - ' + row.doc.amount)
                } else if (row.doc.paymentOption = 'account') {
                    paymentType = 'Account'
                    tacc = tacc + +row.doc.amount;
                    console.log('Account - ' + row.doc.amount)
                }

            });

            this.payment.push({
                paymentType: paymentType,
                tcash: tcash,
                tcard: tcard,
                tacc: tacc,
                tcashp: this.percentage(tcash, total),
                tcardp: ((tcard / total) * 100).toFixed(2),
                taccp: ((tacc / total) * 100).toFixed(2)
            })

            resolve(this.payment);


            this.db.changes({
                live: true,
                since: 'now',
                include_docs: true
            }).on('change', this.onDatabaseChange);
        }).catch((error) => {

            console.log(error);
            resolve(false);

        });

    }).catch((error) => {

        console.log(error);
    });
}

我该如何进行这项工作？我将不胜感激的任何帮助

Answer 1

您可能需要像这样的东西？

let cash = 0;
let card = 0;
let account = 0;

for (const row of result.rows) {
  switch (row.doc.paymentOption) {
    case 'cash':
      cash += row.doc.amount;
      break;
    case 'card':
      card += row.doc.amount;
      break;
    case 'account':
      account += row.doc.amount;
      break;
    default:
      // Error
  }
}

console.log(`Cash: ${cash}`);
console.log(`Card: ${card}`);
console.log(`Account: ${account}`);

这是假设row.doc.amount字段始终包含有效的数值。

Answer 2

您可以使用此- 遍历row属性并获取付款的类型和值。如果付款类型已经存在，则将其添加到对象中，否则它将创建该属性。

var obj={  
    "total_rows":59,
    "offset":0,
    "rows":[  
       {  
          "key":"PAY_2019-01-11T12:18:52.085Z",
          "id":"PAY_2019-01-11T12:18:52.085Z",
          "value":110,
          "doc":{  
             "paymentStatus":true,
             "paymentOption":"card",
             "amount":110,
             "tenderedTotal":110,
             "time":"2019-01-11T12:18:52.085Z",
             "orderId":"ORD_2019-01-11T12:18:52.085Z",
             "type":"payment",
             "_id":"PAY_2019-01-11T12:18:52.085Z",
             "_rev":"1-9fdc73a415914311a80db1727fbc593b"
          }
       },
       {  
          "key":"PAY_2019-01-11T16:27:29.553Z",
          "id":"PAY_2019-01-11T16:27:29.553Z",
          "value":66,
          "doc":{  
             "paymentStatus":true,
             "paymentOption":"cash",
             "amount":66,
             "tenderedTotal":66,
             "time":"2019-01-11T16:27:29.553Z",
             "orderId":"ORD_2019-01-11T16:27:29.553Z",
             "type":"payment",
             "_id":"PAY_2019-01-11T16:27:29.553Z",
             "_rev":"1-a58e3811d11c4ca3a92bd1e206e6e0f3"
          }
       },
       {  
          "key":"PAY_2019-01-11T18:12:13.716Z",
          "id":"PAY_2019-01-11T18:12:13.716Z",
          "value":60,
          "doc":{  
             "paymentStatus":true,
             "paymentOption":"account",
             "amount":60,
             "tenderedTotal":152,
             "time":"2019-01-11T18:12:13.716Z",
             "orderId":"ORD_2019-01-11T18:12:13.716Z",
             "type":"payment",
             "fromCustomerAccount":true,
             "customerPayment":false,
             "grandTotal":60,
             "customer":{  
                "type":"account",
                "account_type":"customer",
                "fname":"Mukopaje",
                "lname":"Singogo",
                "phone":"974776247",
                "email":"mukopaje@gmail.com",
                "region":"Other",
                "city":"Lusaka",
                "balance":0,
                "status":true,
                "index":0,
                "_id":"CST_2019-01-03T11:27:22.924Z",
                "_rev":"4-9453c05f151242a39bc5511323bbb820"
             },
             "customerPaid":152,
             "customer_id":"CST_2019-01-03T11:27:22.924Z",
             "credeb":"debit",
             "_id":"PAY_2019-01-11T18:12:13.716Z",
             "_rev":"1-0486777aaf1444bdaa8bcd35dd18c1d9"
          }
       }
    ]
 }
 var a=obj.rows;
 var k={};
 a.forEach((e)=>{
 if(!k.hasOwnProperty(e.doc.paymentOption))
 {
k[e.doc.paymentOption]=0;    
}
if(k.hasOwnProperty(e.doc.paymentOption))
{
    k[e.doc.paymentOption]=Number(k[e.doc.paymentOption])+Number(e.value);
}
})
 console.log(k)

如何遍历对象并将总和计入每种付款类型？

2 个答案: