forked from sheetjs/sheetjs
SheetJS
08bb7e6e60
- `writeFile` support chrome extension (fixes #1051 h/t @atkinsam) - demo refresh
63 lines
1.7 KiB
JavaScript
63 lines
1.7 KiB
JavaScript
/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
|
|
/* eslint-env node */
|
|
/* global Promise */
|
|
const XLSX = require('xlsx');
|
|
const SheetJSMongo = require("./SheetJSMongo");
|
|
const MongoClient = require('mongodb').MongoClient;
|
|
|
|
const url = 'mongodb://localhost:27017/sheetjs';
|
|
const db_name = 'sheetjs';
|
|
|
|
let P = Promise.resolve("sheetjs");
|
|
|
|
/* Connect to mongodb server */
|
|
P = P.then(async () => {
|
|
const client = await MongoClient.connect(url);
|
|
return [client];
|
|
});
|
|
|
|
/* Sample data table */
|
|
P = P.then(async ([client]) => {
|
|
const db = client.db(db_name);
|
|
|
|
try { await db.collection('pres').drop(); } catch(e) {}
|
|
const pres = db.collection('pres');
|
|
await pres.insertMany([
|
|
{ name: "Barack Obama", idx: 44 },
|
|
{ name: "Donald Trump", idx: 45 }
|
|
], {ordered: true});
|
|
|
|
try { await db.collection('fmts').drop(); } catch(e) {}
|
|
const fmts = db.collection('fmts');
|
|
await fmts.insertMany([
|
|
{ ext: 'XLSB', ctr: 'ZIP', multi: 1 },
|
|
{ ext: 'XLS', ctr: 'CFB', multi: 1 },
|
|
{ ext: 'XLML', multi: 1 },
|
|
{ ext: 'CSV', ctr: 'ZIP', multi: 0 },
|
|
], {ordered: true});
|
|
|
|
return [client, pres, fmts];
|
|
});
|
|
|
|
/* Export database to XLSX */
|
|
P = P.then(async ([client, pres, fmts]) => {
|
|
const wb = XLSX.utils.book_new();
|
|
await SheetJSMongo.book_append_mongo(wb, pres, "pres");
|
|
await SheetJSMongo.book_append_mongo(wb, fmts, "fmts");
|
|
XLSX.writeFile(wb, "mongocrud.xlsx");
|
|
return [client, pres, fmts];
|
|
});
|
|
|
|
/* Read the new file and dump all of the data */
|
|
P = P.then(() => {
|
|
const wb = XLSX.readFile('mongocrud.xlsx');
|
|
wb.SheetNames.forEach((n,i) => {
|
|
console.log(`Sheet #${i+1}: ${n}`);
|
|
const ws = wb.Sheets[n];
|
|
console.log(XLSX.utils.sheet_to_csv(ws));
|
|
});
|
|
});
|
|
|
|
/* Close connection */
|
|
P.then(async ([client]) => { client.close(); });
|