javascript - 使用云功能将文档复制到 Firestore 中的新集合中
问题描述
路径 1 - Match_Creator/cricket/matchList;路径 2 - Match_Creator/cricket/completedMatchList;我有一个名为 matchList (Path 1) 的集合,其中我有一个名为 c434108 的文档。现在我想将此文档(c434108)移动到路径 2;
/* eslint-disable promise/catch-or-return */
const functions = require("firebase-functions");
const admin = require("firebase-admin");
const { db } = require("./db/index");
const createCompletedMatchListDoc = (request, response) => {
completedMatchDocsData();
};
function completedMatchDocsData() {
createNewCompletedMatchDocs()
}
function getOldCompletedMatchDocs(){
var completedMatchesRef = db
.collection("Match_Creator")
.doc("cricket")
.collection("matchList");
var completedMatchDocData;
var completedMatchDataArr = [];
return new Promise(resolve => {
let query = completedMatchesRef
.where("status", "==", "live")
.get()
.then(snapshot => {
// eslint-disable-next-line promise/always-return
if (snapshot.empty) {
console.log("No matching documents.");
return;
}
snapshot.forEach(doc => {
completedMatchDocData = doc.data();
completedMatchDataArr.push(completedMatchDocData);
resolve(completedMatchDataArr);
});
console.log("sarang", completedMatchDataArr[2]);
})
.catch(err => {
console.log("Error getting documents", err);
});
});
}
const createNewCompletedMatchDocs = (async(change, context) => {
let completedMatchData = await getOldCompletedMatchDocs();
console.log('aman', completedMatchData[1]);
const newValue = change.after.data();
const previousValue = change.before.data();
const st1 =newValue.status;
const st2 = previousValue.status;
console.log('I am a log entry' + st1 + ' ' + st2);
var data = completedMatchData[0];
return db.collection('Match_Creator').doc('cricket').collection('completedMatchList').add(data)
.catch(error => {
console.log('Error writting document: ' + error);
return false;
});
})
module.exports = createCompletedMatchListDoc;
复制此文档(c434108)后,我想从路径 1 中删除此文档(c434108)。
我的 index.js 文件是:
const functions = require("firebase-functions");
const admin = require("firebase-admin");
const storeMatchData = require("./liveScoring");
const createCompletedMatchListDoc = require("./completedMatchList");
var http = require("https");
module.exports = {
liveScoring: functions.https.onRequest(storeMatchData),
createCompletedMatchListDoc: functions.https.onRequest(
createCompletedMatchListDoc
)
};
解决方案
我能够解决我的问题。
这是我的 completeMatchList.js 文件
/* eslint-disable promise/catch-or-return */
const functions = require("firebase-functions");
const admin = require("firebase-admin");
const { db } = require("./db/index");
const createCompletedMatchListDoc = (request, response) => {
completedMatchDocsData();
};
function completedMatchDocsData() {
setNewCompletedMatchDocs()
}
function getOldCompletedMatchDocs(){
var completedMatchesRef = db
.collection("Match_Creator")
.doc("cricket")
.collection("matchList");
var completedMatchDocData;
var completedMatchDataArr = [];
return new Promise(resolve => {
let query = completedMatchesRef
.where("status", "==", "live")
.get()
.then(snapshot => {
// eslint-disable-next-line promise/always-return
if (snapshot.empty) {
console.log("No matching documents.");
return;
}
snapshot.forEach(doc => {
// completedMatchDocData = doc.data();
completedMatchDocData = {
docId: "",
docData: ""
}
completedMatchDocData.docId = doc.id;
completedMatchDocData.docData = doc.data();
completedMatchDataArr.push(completedMatchDocData);
resolve(completedMatchDataArr); // Here i am getting the data and pushing it in array
});
console.log("sarang", completedMatchDataArr);
})
.catch(err => {
console.log("Error getting documents", err);
});
});
}
const setNewCompletedMatchDocs = (async () => {
let getCompletedMatchData = await getOldCompletedMatchDocs();
// console.log("balram", getCompletedMatchData[0].docId);
let newCompletedMatchDocRef = db.collection("Match_Creator").doc("cricket").collection("completedMatchList").doc(getCompletedMatchData[0].docId);
return newCompletedMatchDocRef.set(getCompletedMatchData[0].docData); //set/copy the data to new path.
})
这是我的主要 index.js 文件
const functions = require("firebase-functions");
const admin = require("firebase-admin");
const storeMatchData = require("./liveScoring");
const createCompletedMatchListDoc = require("./completedMatchList");
const { db } = require("./db/index");
var http = require("https");
module.exports = {
liveScoring: functions.https.onRequest(storeMatchData),
createCompletedMatchListDoc: functions.https.onRequest(
createCompletedMatchListDoc
)
};
现在将文档数据复制到新路径后,我将删除以前的文档。对于删除文档,我没有编写函数。
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