66 lines
1.5 KiB
JavaScript
66 lines
1.5 KiB
JavaScript
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 dbliteAdapter = require('dblite');
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class SqliteDblite extends Adapter {
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constructor (config) {
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const file = (Helpers.isString(config)) ? config : config.file;
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const instance = new Promise((resolve, reject) => {
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const conn = dbliteAdapter(file);
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// Stop the stupid 'bye bye' message being output
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conn.on('close', () => {});
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conn.on('error', err => {
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reject(err);
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});
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// Make sure to actually pass on the connection!
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return resolve(conn);
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});
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super(instance);
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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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return conn.query(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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* Transform the adapter's result into a standard format
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*
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* @param {*} originalResult - the original result object from the driver
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* @return {Result} - the new result object
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*/
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transformResult (originalResult) {
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return new Result(originalResult);
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}
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/**
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* Close the current database connection
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*
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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 = SqliteDblite;
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