37 lines
1.1 KiB
JavaScript
37 lines
1.1 KiB
JavaScript
var db = require("./database");
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var Logger = require("./logger");
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const DB_VERSION = 1;
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module.exports.checkVersion = function () {
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db.query("SELECT `key`,`value` FROM `meta` WHERE `key`=?", ["db_version"], function (err, rows) {
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if (err) {
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return;
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}
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if (rows.length === 0) {
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Logger.errlog.log("[Warning] db_version key missing from database. Setting " +
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"db_version=" + DB_VERSION);
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db.query("INSERT INTO `meta` (`key`, `value`) VALUES ('db_version', ?)",
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[DB_VERSION],
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function (err) {
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});
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} else {
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var v = parseInt(rows[0].value);
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var next = function () {
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if (v < DB_VERSION) {
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update(v++, next);
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} else {
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db.query("UPDATE `meta` SET `value`=? WHERE `key`='db_version'",
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[DB_VERSION]);
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}
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};
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update(v++, next);
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}
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});
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};
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function update(version, cb) {
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setImmediate(cb);
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}
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