add backupdb

mostly same code as the appstore side

src/backupdb.js

@@ -0,0 +1,115 @@
+/* jslint node:true */
+
+'use strict';
+
+var assert = require('assert'),
+    database = require('./database.js'),
+    DatabaseError = require('./databaseerror.js'),
+    util = require('util');
+
+var BACKUPS_FIELDS = [ 'filename', 'creationTime', 'version', 'type', 'dependsOn', 'state' ];
+
+exports = module.exports = {
+    add: add,
+    getPaged: getPaged,
+    get: get,
+    del: del,
+
+    _clear: clear,
+
+    BACKUP_TYPE_APP: 'app',
+    BACKUP_TYPE_BOX: 'box',
+
+    BACKUP_STATE_NORMAL: 'normal', // should rename to created to avoid listing in UI?
+};
+
+function postProcess(result) {
+    assert.strictEqual(typeof result, 'object');
+
+    result.dependsOn = result.dependsOn ? result.dependsOn.split(',') : [ ];
+}
+
+function getPaged(page, perPage, callback) {
+    assert(typeof page === 'number' && page > 0);
+    assert(typeof perPage === 'number' && perPage > 0);
+    assert.strictEqual(typeof callback, 'function');
+
+    database.query('SELECT ' + BACKUPS_FIELDS + ' FROM backups WHERE type = ? AND state = ? ORDER BY creationTime DESC LIMIT ?,?',
+        [ exports.BACKUP_TYPE_BOX, exports.BACKUP_STATE_NORMAL, (page-1)*perPage, perPage ], function (error, results) {
+        if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
+
+        results.forEach(function (result) { postProcess(result); });
+
+        callback(null, results);
+    });
+}
+
+function getByAppIdPaged(page, perPage, appId, callback) {
+    assert(typeof page === 'number' && page > 0);
+    assert(typeof perPage === 'number' && perPage > 0);
+    assert.strictEqual(typeof appId, 'string');
+    assert.strictEqual(typeof callback, 'function');
+
+    database.query('SELECT ' + BACKUPS_FIELDS + ' FROM backups WHERE type = ? AND state = ? AND filename LIKE ? ORDER BY creationTime DESC LIMIT ?,?',
+        [ exports.BACKUP_TYPE_APP, exports.BACKUP_STATE_NORMAL, 'appbackup\\_' + appId + '\\_%', (page-1)*perPage, perPage ], function (error, results) {
+        if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
+
+        results.forEach(function (result) { postProcess(result); });
+
+        callback(null, results);
+    });
+}
+
+function get(filename, callback) {
+    assert.strictEqual(typeof filename, 'string');
+    assert.strictEqual(typeof callback, 'function');
+
+    database.query('SELECT ' + BACKUPS_FIELDS + ' FROM backups WHERE filename = ? AND type = ? AND state = ? ORDER BY creationTime DESC',
+        [ filename, exports.BACKUP_TYPE_BOX, exports.BACKUP_STATE_NORMAL ], function (error, result) {
+        if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
+        if (result.length === 0) return callback(new DatabaseError(DatabaseError.NOT_FOUND));
+
+        postProcess(result[0]);
+
+        callback(null, result[0]);
+    });
+}
+
+function add(backup, callback) {
+    assert(backup && typeof backup === 'object');
+    assert.strictEqual(typeof backup.filename, 'string');
+    assert.strictEqual(typeof backup.version, 'string');
+    assert(backup.type === exports.BACKUP_TYPE_APP || backup.type === exports.BACKUP_TYPE_BOX);
+    assert(util.isArray(backup.dependsOn));
+    assert.strictEqual(typeof callback, 'function');
+
+    var creationTime = backup.creationTime || new Date(); // allow tests to set the time
+
+    database.query('INSERT INTO backups (filename, version, type, creationTime, state, dependsOn) VALUES (?, ?, ?, ?, ?, ?)',
+        [ backup.filename, backup.version, backup.type, creationTime, exports.BACKUP_STATE_NORMAL, backup.dependsOn.join(',') ],
+        function (error) {
+        if (error && error.code === 'ER_DUP_ENTRY') return callback(new DatabaseError(DatabaseError.ALREADY_EXISTS));
+        if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
+
+        callback(null);
+    });
+}
+
+function clear(callback) {
+    assert.strictEqual(typeof callback, 'function');
+
+    database.query('TRUNCATE TABLE backups', [], function (error) {
+        if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
+        callback(null);
+    });
+}
+
+function del(filename, callback) {
+    assert.strictEqual(typeof filename, 'string');
+    assert.strictEqual(typeof callback, 'function');
+
+    database.query('DELETE FROM backups WHERE filename=?', [ filename ], function (error) {
+        if (error) return callback(new DatabaseError(DatabaseError.INTERNAL_ERROR, error));
+        callback(null);
+    });
+}