64 lines
1.4 KiB
JavaScript
64 lines
1.4 KiB
JavaScript
'use strict';
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const Adapter = require('../../Adapter');
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const Result = require('../../Result');
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const helpers = require('../../helpers');
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const sqlite3 = require('sqlite3').verbose();
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class SqliteSqlite3 extends Adapter {
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constructor (config) {
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let file = (helpers.isString(config)) ? config : config.file;
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const instance = new Promise((resolve, reject) => {
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let conn = new sqlite3.Database(file, sqlite3.OPEN_READWRITE | sqlite3.OPEN_CREATE, err => {
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if (err) {
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reject(err);
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}
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});
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conn.on('open', resolve(conn));
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});
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super(instance);
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}
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/**
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* Transform the adapter's result into a standard format
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*
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* @param {*} result - original driver result object
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* @return {Result} - standard result object
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*/
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transformResult (result) {
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return new Result(result);
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}
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/**
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* Run the sql query as a prepared statement
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*
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* @param {String} sql - The sql with placeholders
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* @param {Array} params - The values to insert into the query
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* @return {Promise} - Returns a promise if no callback is provided
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*/
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execute (sql, params) {
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return this.instance.then(conn => new Promise((resolve, reject) => {
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conn.all(sql, params, (err, rows) => {
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if (err) {
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return reject(err);
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}
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return resolve(this.transformResult(rows));
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});
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}));
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}
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/**
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* Close the current database connection
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* @return {void}
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*/
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close () {
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this.instance.then(conn => conn.close());
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}
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}
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module.exports = SqliteSqlite3;
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