86 lines
2.8 KiB
JavaScript
86 lines
2.8 KiB
JavaScript
/* jslint node:true */
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'use strict';
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exports = module.exports = {
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get,
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getAll,
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set,
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getBlob,
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setBlob,
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_clear: clear
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};
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const assert = require('assert'),
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BoxError = require('./boxerror.js'),
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database = require('./database.js');
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const SETTINGS_FIELDS = [ 'name', 'value' ].join(',');
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const SETTINGS_BLOB_FIELDS = [ 'name', 'valueBlob' ].join(',');
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function get(key, callback) {
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assert.strictEqual(typeof key, 'string');
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assert.strictEqual(typeof callback, 'function');
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database.query(`SELECT ${SETTINGS_FIELDS} FROM settings WHERE name = ?`, [ key ], function (error, result) {
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if (error) return callback(new BoxError(BoxError.DATABASE_ERROR, error));
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if (result.length === 0) return callback(new BoxError(BoxError.NOT_FOUND, 'Setting not found'));
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callback(null, result[0].value);
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});
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}
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// won't get the blobs
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function getAll(callback) {
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database.query(`SELECT ${SETTINGS_FIELDS} FROM settings WHERE value IS NOT NULL ORDER BY name`, function (error, results) {
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if (error) return callback(new BoxError(BoxError.DATABASE_ERROR, error));
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callback(null, results);
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});
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}
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function set(key, value, callback) {
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assert.strictEqual(typeof key, 'string');
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assert(value === null || typeof value === 'string');
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assert.strictEqual(typeof callback, 'function');
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database.query('INSERT INTO settings (name, value) VALUES (?, ?) ON DUPLICATE KEY UPDATE value=VALUES(value)', [ key, value ], function (error) {
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if (error) return callback(new BoxError(BoxError.DATABASE_ERROR, error)); // don't rely on affectedRows here since it gives 2
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callback(null);
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});
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}
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function getBlob(key, callback) {
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assert.strictEqual(typeof key, 'string');
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assert.strictEqual(typeof callback, 'function');
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database.query(`SELECT ${SETTINGS_BLOB_FIELDS} FROM settings WHERE name = ?`, [ key ], function (error, result) {
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if (error) return callback(new BoxError(BoxError.DATABASE_ERROR, error));
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if (result.length === 0) return callback(new BoxError(BoxError.NOT_FOUND, 'Setting not found'));
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callback(null, result[0].valueBlob);
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});
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}
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function setBlob(key, value, callback) {
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assert.strictEqual(typeof key, 'string');
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assert(value === null || Buffer.isBuffer(value));
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assert.strictEqual(typeof callback, 'function');
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database.query('INSERT INTO settings (name, valueBlob) VALUES (?, ?) ON DUPLICATE KEY UPDATE valueBlob=VALUES(valueBlob)', [ key, value ], function (error) {
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if (error) return callback(new BoxError(BoxError.DATABASE_ERROR, error)); // don't rely on affectedRows here since it gives 2
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callback(null);
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});
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}
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function clear(callback) {
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database.query('DELETE FROM settings', function (error) {
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if (error) return callback(new BoxError(BoxError.DATABASE_ERROR, error));
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callback(error);
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});
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}
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