55 lines
1.7 KiB
JavaScript
55 lines
1.7 KiB
JavaScript
|
/* jslint node:true */
|
||
|
|
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
exports = module.exports = {
|
||
|
|
get: get,
|
||
|
|
getAll: getAll,
|
||
|
|
set: set,
|
||
|
|
_clear: clear
|
||
|
|
};
|
||
|
|
|
||
|
|
var assert = require('assert'),
|
||
|
|
database = require('./database.js'),
|
||
|
|
DatabaseError = require('./databaseerror');
|
||
|
|
|
||
|
|
function get(key, callback) {
|
||
|
|
assert.strictEqual(typeof key, 'string');
|
||
|
|
assert.strictEqual(typeof callback, 'function');
|
||
|
|
|
||
|
|
database.query('SELECT * FROM settings WHERE name = ?', [ key ], function (error, result) {
|
||
|
|
if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
|
||
|
|
if (result.length === 0) return callback(new DatabaseError(DatabaseError.NOT_FOUND));
|
||
|
|
|
||
|
|
callback(null, result[0].value);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
function getAll(callback) {
|
||
|
|
database.query('SELECT * FROM settings ORDER BY name', function (error, results) {
|
||
|
|
if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
|
||
|
|
|
||
|
|
callback(null, results);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
function set(key, value, callback) {
|
||
|
|
assert.strictEqual(typeof key, 'string');
|
||
|
|
assert(value === null || typeof value === 'string');
|
||
|
|
assert.strictEqual(typeof callback, 'function');
|
||
|
|
|
||
|
|
database.query('INSERT INTO settings (name, value) VALUES (?, ?) ON DUPLICATE KEY UPDATE value=VALUES(value)', [ key, value ], function (error) {
|
||
|
|
if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error)); // don't rely on affectedRows here since it gives 2
|
||
|
|
|
||
|
|
callback(null);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
function clear(callback) {
|
||
|
|
database.query('DELETE FROM settings', function (error) {
|
||
|
|
if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
|
||
|
|
|
||
|
|
callback(error);
|
||
|
|
});
|
||
|
|
}
|