69 lines
1.8 KiB
JavaScript
69 lines
1.8 KiB
JavaScript
const config = require('./config');
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const sqlite3 = require('sqlite3').verbose();
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let db = new sqlite3.Database(config.dbFileName, sqlite3.OPEN_READWRITE, (err) => {
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if (err) {
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console.error("ERROR: opening DB failed: ", err.message);
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}
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console.log('Connected.');
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});
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let query = (SQL) => {
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return new Promise((resolve, reject) => {
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// this if assumes only SELECT has a resultset
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if (SQL.toUpperCase().startsWith("SELECT")) {
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db.all(SQL, [], (err, rows) => {
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if (err) {
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console.log("A");
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reject("ERROR: fetching data: ", err.message);
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}
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console.log("B", rows);
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resolve(rows);
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});
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} else {
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db.run(SQL, (err) => {
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if (err) {
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reject("ERROR: inserting row: ", err.message);
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}
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resolve(true);
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});
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}
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});
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};
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let close = () => {
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return new Promise((resolve, reject) => {
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db.close((err) => {
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if (err) {
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reject("ERROR: closing DB: ", err.message);
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}
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resolve(true);
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});
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});
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}
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let main = async () => {
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query('insert into log (message) values (\'Outside\')');
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let rows = null;
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try {
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await query('insert into log (message) values (\'start\')');
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rows = await query('select * from Option');
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rows.forEach((row) => {
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console.log(row.ID + "\t" + row.PutCall);
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})
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await query('insert into log (message) values (\'end\')');
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} catch (ex) {
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console.error('Error', ex);
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}
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close();
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}
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main();
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module.exports = {
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query,
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close
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}; |