[英]Update age based on dob in a collection in Mongodb
我的一个收藏夹中有1000个文档。
{“ _id”:ObjectId(“ 56d97671f6ad671b7d1c3d76”),“ parseId”:“ TdKxj9FFPY”,“电话”:“ 6643545645”,“ dob”:“ 15-06-87”,“年龄”:121“ createdAt”:ISODate (“ 2016-03-01T16:39:00.947Z”),“ updatedAt”:ISODate(“ 2016-03-01T16:39:00.947Z”),“ __v”:0}
{“ _id”:ObjectId(“ 56d97671f6ad671b7d1c3d76”),“ parseId”:“ TdKxj9FFPY”,“电话”:“ 9847523654”,“ dob”:“ 15-06-93”,“ age”:100“ createdAt”:ISODate (“ 2016-03-01T16:39:00.947Z”),“ updatedAt”:ISODate(“ 2016-03-01T16:39:00.947Z”),“ __v”:0}
{“ _id”:ObjectId(“ 56d97671f6ad671b7d1c3d76”),“ parseId”:“ TdKxj9FFPY”,“电话”:“ 4564646646”,“ dob”:“ 15-06-43”,“ age”:152“ createdAt”:ISODate (“ 2016-03-01T16:39:00.947Z”),“ updatedAt”:ISODate(“ 2016-03-01T16:39:00.947Z”),“ __v”:0}
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但是,一些年龄值都DOB的wrong.The数值right.So我需要更新的时代基于手动单个查询DOB值是多少?
最终我找到了解决方案,我只是将集合导出到json文件中,并使用js函数更新了所有文档并将集合导入到db中。
html
<html>
<head>
<script type="text/javascript" src="https://rawgit.com/eligrey/FileSaver.js/master/FileSaver.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
</head>
<body>
<button id="save">save</button>
</body>
<script type="text/javascript">
function getAge(dateString) {
var today = new Date();
var birthDate = new Date(dateString);
var age = today.getFullYear() - birthDate.getFullYear();
var m = today.getMonth() - birthDate.getMonth();
if (m < 0 || (m === 0 && today.getDate() < birthDate.getDate())) {
age--;
}
return age;
}
var exportData;
$.getJSON("input.json", function(data) {
exportData = data;
exportData.forEach(function(item, index) {
// console.log('item dob', item.dob);
var dobInfo = item.dob.split('-');
var dd = dobInfo[0];
if (dd < 10) {
dd = '0' + dd;
}
var mm = dobInfo[1];
if (mm < 10) {
mm = '0' + mm;
}
var yy = dobInfo[2];
yy = (yy < 17) ? '20' + yy : '19' + yy;
// console.log('dd', dd);
// console.log('mm', mm);
// console.log('yy', yy);
var newdate = mm + '-' + dd + '-' + yy;
// console.log('newdate',newdate);
console.log('index[' + index + ']', item.dob);
var age = getAge(newdate);
console.log('age--->', age);
exportData[index].age = age;
});
});
document.getElementById('save').onclick = function() {
var textToSave = JSON.stringify(exportData),
filename = 'output.json',
blob = new Blob([textToSave], {
type: "text/plain;charset=utf-8"
});
saveAs(blob, filename);
}
</script>
</html>
编辑:我对第一个不好。
将您的数据导出到JSON,然后通过它运行并重新导入。 您唯一的依赖项是fs和momentjs。
var moment = require('moment'),
fs = require('fs'),
json = [
{ "_id":"56d97671f6ad671b7d1c3d76", "parseId": "TdKxj9FFPY", "phone": "6643545645", "dob": "15-06-87", "age": 121, "createdAt": "2016-03-01T16:39:00.947Z", "updatedAt": "2016-03-01T16:39:00.947Z", "__v": 0 },
{ "_id":"56d97671f6ad671b7d1c3d76", "parseId": "TdKxj9FFPY", "phone": "9847523654", "dob": "15-06-93", "age": 100, "createdAt": "2016-03-01T16:39:00.947Z", "updatedAt": "2016-03-01T16:39:00.947Z", "__v": 0 },
{ "_id":"56d97671f6ad671b7d1c3d76", "parseId": "TdKxj9FFPY", "phone": "4564646646", "dob": "15-06-43", "age": 152, "createdAt": "2016-03-01T16:39:00.947Z", "updatedAt": "2016-03-01T16:39:00.947Z", "__v": 0 }
];
Object.keys(json).forEach(function(key) {
age = moment().diff(moment(json[key].dob,"DD/MM/YY"),'years');
//
//dates before 1970 are negative
//
if (parseInt(age) < 0) {
age += 100;
}
json[key].age = age;
});
fs.writeFile('data.json', JSON.stringify(json), function (err) {
if (err) return console.log(err);
console.log('compeleted');
});
年龄输出= [29、23、74];
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