define([],function(){"use strict";function getDb(callback){var db=databaseInstance;if(db)return void callback(db);var request=indexedDB.open(dbName,dbVersion);request.onerror=function(event){},request.onupgradeneeded=function(event){var db=event.target.result,objectStore=db.createObjectStore(dbName);objectStore.transaction.oncomplete=function(event){callback(db)}},request.onsuccess=function(event){var db=event.target.result;callback(db)}}function getByServerId(serverId){return getAll().then(function(items){return items.filter(function(item){return item.ServerId===serverId})})}function getAll(){return new Promise(function(resolve,reject){getDb(function(db){var request,storeName=dbName,transaction=db.transaction([storeName],"readonly"),objectStore=transaction.objectStore(storeName);if("getAll"in objectStore)request=objectStore.getAll(null,1e4),request.onsuccess=function(event){resolve(event.target.result)};else{var results=[];request=objectStore.openCursor(),request.onsuccess=function(event){var cursor=event.target.result;cursor?(results.push(cursor.value),cursor.continue()):resolve(results)}}request.onerror=reject})})}function get(key){return new Promise(function(resolve,reject){getDb(function(db){var storeName=dbName,transaction=db.transaction([storeName],"readonly"),objectStore=transaction.objectStore(storeName),request=objectStore.get(key);request.onerror=reject,request.onsuccess=function(event){resolve(request.result)}})})}function set(key,val){return new Promise(function(resolve,reject){getDb(function(db){var storeName=dbName,transaction=db.transaction([storeName],"readwrite"),objectStore=transaction.objectStore(storeName),request=objectStore.put(val,key);request.onerror=reject,request.onsuccess=resolve})})}function remove(key){return new Promise(function(resolve,reject){getDb(function(db){var storeName=dbName,transaction=db.transaction([storeName],"readwrite"),objectStore=transaction.objectStore(storeName),request=objectStore.delete(key);request.onerror=reject,request.onsuccess=resolve})})}function clear(){return new Promise(function(resolve,reject){getDb(function(db){var storeName=dbName,transaction=db.transaction([storeName],"readwrite"),objectStore=transaction.objectStore(storeName),request=objectStore.clear();request.onerror=reject,request.onsuccess=resolve})})}var databaseInstance,indexedDB=self.indexedDB||self.mozIndexedDB||self.webkitIndexedDB||self.msIndexedDB,dbName=(self.IDBTransaction||self.webkitIDBTransaction||self.msIDBTransaction||{READ_WRITE:"readwrite"},self.IDBKeyRange||self.webkitIDBKeyRange||self.msIDBKeyRange,"useractions"),dbVersion=1;return{get:get,set:set,remove:remove,clear:clear,getAll:getAll,getByServerId:getByServerId}});