139 lines
4.6 KiB
JavaScript
139 lines
4.6 KiB
JavaScript
'use strict';
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exports = module.exports = {
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get: get,
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getByUserIdAndTitle: getByUserIdAndTitle,
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add: add,
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update: update,
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del: del,
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listByUserIdPaged: listByUserIdPaged,
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// exported for testing
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_clear: clear
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};
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let assert = require('assert'),
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database = require('./database.js'),
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DatabaseError = require('./databaseerror');
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const NOTIFICATION_FIELDS = [ 'id', 'userId', 'eventId', 'title', 'message', 'creationTime', 'acknowledged' ];
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function postProcess(result) {
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assert.strictEqual(typeof result, 'object');
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result.id = String(result.id);
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// convert to boolean
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result.acknowledged = !!result.acknowledged;
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}
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function add(notification, callback) {
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assert.strictEqual(typeof notification, 'object');
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assert.strictEqual(typeof callback, 'function');
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const query = 'INSERT INTO notifications (userId, eventId, title, message, acknowledged) VALUES (?, ?, ?, ?, ?)';
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const args = [ notification.userId, notification.eventId, notification.title, notification.message, notification.acknowledged ];
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database.query(query, args, function (error, result) {
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if (error && error.code === 'ER_NO_REFERENCED_ROW_2') return callback(new DatabaseError(DatabaseError.NOT_FOUND, 'no such eventlog entry'));
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if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
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callback(null, String(result.insertId));
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});
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}
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function getByUserIdAndTitle(userId, title, callback) {
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assert.strictEqual(typeof userId, 'string');
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assert.strictEqual(typeof title, 'string');
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assert.strictEqual(typeof callback, 'function');
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database.query('SELECT ' + NOTIFICATION_FIELDS + ' from notifications WHERE userId = ? AND title = ? ORDER BY creationTime LIMIT 1', [ userId, title ], function (error, results) {
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if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
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if (results.length === 0) return callback(new DatabaseError(DatabaseError.NOT_FOUND));
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postProcess(results[0]);
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callback(null, results[0]);
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});
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}
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function update(id, data, callback) {
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assert.strictEqual(typeof id, 'string');
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assert.strictEqual(typeof data, 'object');
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assert.strictEqual(typeof callback, 'function');
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let args = [ ];
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let fields = [ ];
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for (let k in data) {
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fields.push(k + ' = ?');
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args.push(data[k]);
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}
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args.push(id);
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database.query('UPDATE notifications SET ' + fields.join(', ') + ' WHERE id = ?', args, function (error, result) {
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if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
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if (result.affectedRows !== 1) return callback(new DatabaseError(DatabaseError.NOT_FOUND));
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callback(null);
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});
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}
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function get(id, callback) {
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assert.strictEqual(typeof id, 'string');
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assert.strictEqual(typeof callback, 'function');
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database.query('SELECT ' + NOTIFICATION_FIELDS + ' FROM notifications WHERE id = ?', [ id ], function (error, result) {
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if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
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if (result.length === 0) return callback(new DatabaseError(DatabaseError.NOT_FOUND));
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postProcess(result[0]);
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callback(null, result[0]);
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});
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}
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function del(id, callback) {
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assert.strictEqual(typeof id, 'string');
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assert.strictEqual(typeof callback, 'function');
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database.query('DELETE FROM notifications WHERE id = ?', [ id ], function (error, result) {
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if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
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if (result.affectedRows !== 1) return callback(new DatabaseError(DatabaseError.NOT_FOUND));
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callback(null);
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});
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}
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function listByUserIdPaged(userId, page, perPage, callback) {
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assert.strictEqual(typeof userId, 'string');
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assert.strictEqual(typeof page, 'number');
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assert.strictEqual(typeof perPage, 'number');
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assert.strictEqual(typeof callback, 'function');
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var data = [ userId ];
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var query = 'SELECT ' + NOTIFICATION_FIELDS + ' FROM notifications WHERE userId=?';
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query += ' ORDER BY creationTime DESC LIMIT ?,?';
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data.push((page-1)*perPage);
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data.push(perPage);
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database.query(query, data, function (error, results) {
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if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
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results.forEach(postProcess);
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callback(null, results);
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});
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}
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function clear(callback) {
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assert.strictEqual(typeof callback, 'function');
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database.query('DELETE FROM notifications', function (error) {
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if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
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callback(null);
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});
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}
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