我在index.js中有一个名为var lat和var long的新变量。为了获得firebase值,我使用了这段代码
var lat;
var long;
var cityRef =
db.collection('UsersCurrentBookings').doc('3Xg6ujHMINeElzdOD3JypcZBMHw2');
var getDoc = cityRef.get()
.then(doc => {
if (!doc.exists) {
console.log('No such document!');
} else {
console.log('Document data:', doc.data());
}
})
.catch(err => {
console.log('Error getting document', err);
});
我的控制台输出:
文件资料:{city:'Chennai',
国家:'印度',
时间:'10:35:57',
日期:'2018-03-28',
令牌:'deFFa4dBPlQ:APA91bF7hTjsSkk-l6fLaI939W0ISe2olO18OjCUZu4N9URr9QK44XBIyWyC1L9Vui1cawGkFaSV1M2yDG4ASJyeCtrwGyal0GmIgdciZeGVmNSUnvyddTLUPAxQlAsjpAHTJy4Lwqt',
地址:'Sri Aravinthar St,Sholinganallur,Chennai,Tamil Nadu 600119,India',
Currentlat:'12 .8710994',
Currentlong:'80 .2225558',
我希望将控制台输出值currentlat和currentlong值传递给lat和long的新变量。
从UsersCurrentBookings db获取值后,如何将值插入db.collection(DriversCurrentBookins)和参数值lat,long和token。
任何帮助将不胜感激!在此先感谢!!!
答案 0 :(得分:2)
您可以直接访问JSON响应中的数据,如果需要,您也可以使用Javascript Global函数parseFloat();
var lat = parseFloat(doc.data().Currentlat);
var lng = parseFloat(doc.data().Currentlong);
****的更新强> ****
要向Mongo数据库添加数据,可以使用
等库 MongooseJS:// This uses a model based structure, can be a little difficult to understand at first.
或
**** 更新忽略上一个 ****
const tokenField = data.getData().token
const ref = db.collection().doc(tokenField);
var jsonData = {
'lat' : lat,
'lng' : lng
}
ref.set(jsonData);
答案 1 :(得分:0)
将set data调用到usercurrentbooking collection db
var cityRef =
db.collection('UsersBookingRequest').doc('9DjekLkfFmTeLfkyZQAeezVriv02');
var getDoc = cityRef.get()
.then(doc => {
if (!doc.exists) {
console.log('No such document!');
} else {
console.log('Document data:', doc.data());
lat = doc.data().Currentlat;
long = doc.data().Currentlong;
UID = doc.data().UID;
// token = doc.data().token;
address = doc.data().address;
date = doc.data().date;
time = doc.data().time;
console.log(lat);
console.log(long);
console.log(UID);
// console.log(token);
console.log(address);
console.log(date);
console.log(time);
var data = {
lat: lat,
long: long,
UID: UID,
address: address,
date: date,
time: time
// token: token
};
// Add a new document in collection "cities" with ID 'LA'
var setDoc =
db.collection('DriversCurrentBookings').doc(doc.data().UID).set(data);
}
})
.catch(err => {
console.log('Error getting document', err);
});