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;
(function (window)
{
if (window.BX.indexedDB) return;
var BX = window.BX;
/**
* IndexedDB driver
*
* === Param 'Params' should be contains ===
* name - name of the database
* scheme - scheme of the database
* version - version of the database, default: 1
* success - callback function if method successful (you can use BX.promise for alternative)
* error - callback function if method errorful (you can use BX.promise for alternative)
*
*
* === Usage example ===
* BX.indexedDB({
* name: 'BX.Messenger',
* scheme: this.dbGetStores(),
* version: 2
* }).then(function (db) {
* console.log('Open DB', db);
* }).catch(function(error){
* console.log(error);
* });
*
*
* === Error example ===
* JS Object = {
* errorCode: 0,
* errorName: "VersionError",
* errorMessage: "The requested version (2) is less than the existing version (3)."
* }
*
* @param params
* @return BX.promise
*/
BX.indexedDB = function (params)
{
var indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
window.IDBTransaction = window.IDBTransaction || window.webkitIDBTransaction || window.msIDBTransaction;
window.IDBKeyRange = window.IDBKeyRange || window.webkitIDBKeyRange || window.msIDBKeyRange;
params.version = parseInt(params.version);
params.version = !params.version? 1: params.version;
var result = new BX.Promise();
var error = {};
if(
typeof indexedDB == 'undefined'
|| typeof window.IDBTransaction == 'undefined'
|| typeof window.IDBKeyRange == 'undefined'
)
{
error = {
errorCode: 'bxNotSupported',
errorName: 'bxNotSupported',
errorMessage: 'IndexedDB is not supported in current browser.'
};
if (typeof params.error == 'function')
{
params.error(error);
}
result.reject(error);
return result;
}
if (
typeof(params) != 'object'
|| !params.name
|| !params.scheme
)
{
error = {
errorCode: 'bxParamsError',
errorName: 'bxParamsError',
errorMessage: 'Required parameters not specified.'
};
if (typeof params.error == 'function')
{
params.error(error);
}
result.reject(error);
return result;
}
var request = indexedDB.open(params.name, params.version);
if (!request)
{
error = {
errorCode: 'bxOpenError',
errorName: 'bxOpenError',
errorMessage: 'An error occurred while opening the database.'
};
if (typeof params.error == 'function')
{
params.error(error);
}
result.reject(error);
return result;
}
request.onsuccess = function(event)
{
if (typeof params.success == 'function')
{
params.success(event.target.result);
}
result.fulfill(event.target.result);
};
request.onerror = function(event)
{
var error = {
errorCode: event.target.error.code,
errorName: event.target.error.name,
errorMessage: event.target.error.message
};
if (typeof params.error == 'function')
{
params.error(error);
}
result.reject(error);
};
request.onupgradeneeded = function (event)
{
/* syncronize database structure */
if (typeof params.scheme != 'undefined')
{
var hDBHandle = event.target.result;
var ob = null;
var oStore = null;
var schemeLength = params.scheme.length;
var i, j = null;
for (i = 0; i < schemeLength; i++)
{
ob = params.scheme[i];
if (
typeof ob == 'object'
&& !hDBHandle.objectStoreNames.contains(ob.name)
)
{
oStore = hDBHandle.createObjectStore(
ob.name,
{
keyPath : (typeof ob.keyPath != 'undefined' && ob.keyPath ? ob.keyPath : undefined),
autoIncrement : (typeof ob.autoIncrement != 'undefined' && !!ob.autoIncrement)
}
);
if (typeof ob.indexes != 'undefined')
{
for (j = 0; j < ob.indexes.length; j++)
{
oStore.createIndex(ob.indexes[j].name, ob.indexes[j].keyPath, { unique: !!ob.indexes[j].unique });
}
}
}
}
var bFound = null;
var length = hDBHandle.objectStoreNames.length;
for (i = 0; i < length; i++)
{
if (!hDBHandle.objectStoreNames[i])
continue;
bFound = false;
for (j = 0; j < schemeLength; j++)
{
ob = params.scheme[j];
if (ob.name == hDBHandle.objectStoreNames[i])
{
bFound = true;
break;
}
}
if (!bFound)
{
hDBHandle.deleteObjectStore(hDBHandle.objectStoreNames[i]);
}
}
}
};
return result;
};
BX.indexedDB.checkDatabaseObject = function (dataBase)
{
var result = {error: null, result: false};
if (
!dataBase
|| typeof dataBase != 'object'
|| !(dataBase instanceof IDBDatabase)
)
{
result.error = {
errorCode: 'bxDataBaseInvalidFormat',
errorName: 'bxDataBaseInvalidFormat',
errorMessage: 'The given "dataBase" object is invalid format for IndexedDB.'
};
}
else
{
result.result = true;
}
return result;
};
BX.indexedDB.getObjectStore = function (dataBase, storeName, openMode)
{
openMode = openMode || 'readonly';
var result = {error: null, transaction: null};
var checkResult = BX.indexedDB.checkDatabaseObject(dataBase);
if (checkResult.error)
{
return result;
}
try
{
var transaction = dataBase.transaction(storeName, openMode);
transaction.onsuccess = function(event){};
transaction.onerror = function(event){
console.log('IndexedDB Transaction error', event);
};
result.transaction = transaction.objectStore(storeName);
return result;
}
catch(err)
{
result.error = {
errorCode: err.code,
errorName: err.name,
errorMessage: err.message
};
return result;
}
};
BX.indexedDB.addValue = function (dataBase, storeName, value, callback)
{
callback = callback || {};
var result = new BX.Promise();
var store = BX.indexedDB.getObjectStore(dataBase, storeName, 'readwrite');
if (store.error)
{
store.error.params = {dataBase: dataBase, storeName: storeName, value: value};
if (typeof callback.error == 'function')
{
callback.error(store.error);
}
result.reject(store.error);
return result;
}
var request = null;
try
{
request = store.transaction.add(value);
}
catch (e)
{
var error = {
errorCode: e.code? e.code: e.name,
errorName: e.name,
errorMessage: e.message,
params: {dataBase: dataBase, storeName: storeName, value: value}
};
result.reject(error);
return result;
}
request.onerror = function(event)
{
var error = {
errorCode: event.target.error.code,
errorName: event.target.error.name,
errorMessage: event.target.error.message,
params: {dataBase: dataBase, storeName: storeName, value: value}
};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
};
request.onsuccess = function(event)
{
if (typeof callback.success == 'function')
{
callback.success(event.target.result);
}
result.fulfill(event.target.result);
};
return result;
};
BX.indexedDB.updateValue = function (dataBase, storeName, value, callback)
{
callback = callback || {};
var result = new BX.Promise();
var store = BX.indexedDB.getObjectStore(dataBase, storeName, 'readwrite');
if (store.error)
{
store.error.params = {dataBase: dataBase, storeName: storeName, value: value};
if (typeof callback.error == 'function')
{
callback.error(store.error);
}
result.reject(store.error);
return result;
}
var request = null;
try
{
request = store.transaction.put(value);
}
catch (e)
{
var error = {
errorCode: e.code? e.code: e.name,
errorName: e.name,
errorMessage: e.message,
params: {dataBase: dataBase, storeName: storeName, value: value}
};
result.reject(error);
return result;
}
request.onerror = function(event)
{
var error = {
errorCode: event.target.error.code,
errorName: event.target.error.name,
errorMessage: event.target.error.message,
params: {dataBase: dataBase, storeName: storeName, value: value}
};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
};
request.onsuccess = function(event)
{
if (typeof callback.success == 'function')
{
callback.success(event.target.result);
}
result.fulfill(event.target.result);
};
return result;
};
BX.indexedDB.deleteValue = function (dataBase, storeName, primaryId, callback)
{
callback = callback || {};
var result = new BX.Promise();
var store = BX.indexedDB.getObjectStore(dataBase, storeName, 'readwrite');
if (store.error)
{
store.error.params = {dataBase: dataBase, storeName: storeName, primaryId: primaryId};
if (typeof callback.error == 'function')
{
callback.error(store.error);
}
result.reject(store.error);
return result;
}
var request = null;
try
{
request = store.transaction.delete(primaryId);
}
catch (e)
{
var error = {
errorCode: e.code? e.code: e.name,
errorName: e.name,
errorMessage: e.message,
params: {dataBase: dataBase, storeName: storeName, primaryId: primaryId}
};
result.reject(error);
return result;
}
request.onerror = function(event)
{
var error = {
errorCode: event.target.error.code,
errorName: event.target.error.name,
errorMessage: event.target.error.message,
params: {dataBase: dataBase, storeName: storeName, primaryId: primaryId}
};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
};
request.onsuccess = function()
{
if (typeof callback.success == 'function')
{
callback.success(true);
}
result.fulfill(true);
};
return result;
};
BX.indexedDB.deleteValueByIndex = function (dataBase, storeName, indexName, indexValue, callback)
{
callback = callback || {};
var result = new BX.Promise();
BX.indexedDB.getValueByIndex(dataBase, storeName, indexName, indexValue).then(function(element){
BX.indexedDB.deleteValue(dataBase, storeName, element.id).then(function(){
if (typeof callback.success == 'function')
{
callback.success(true);
}
result.fulfill(true);
}).catch(function(error){
error.params = {dataBase: dataBase, storeName: storeName, indexName: indexName, indexValue: indexValue};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
});
}).catch(function(error){
error.params = {dataBase: dataBase, storeName: storeName, indexName: indexName, indexValue: indexValue};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
});
return result;
};
BX.indexedDB.getValue = function (dataBase, storeName, primaryId, callback)
{
callback = callback || {};
var result = new BX.Promise();
var store = BX.indexedDB.getObjectStore(dataBase, storeName, 'readwrite');
if (store.error)
{
store.error.params = {dataBase: dataBase, storeName: storeName, primaryId: primaryId};
if (typeof callback.error == 'function')
{
callback.error(store.error);
}
result.reject(store.error);
return result;
}
var request = null;
try
{
request = store.transaction.get(primaryId);
}
catch (e)
{
var error = {
errorCode: e.code? e.code: e.name,
errorName: e.name,
errorMessage: e.message,
params: {dataBase: dataBase, storeName: storeName, primaryId: primaryId}
};
result.reject(error);
return result;
}
request.onerror = function(event)
{
var error = {
errorCode: event.target.error.code,
errorName: event.target.error.name,
errorMessage: event.target.error.message,
params: {dataBase: dataBase, storeName: storeName, primaryId: primaryId}
};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
};
request.onsuccess = function(event)
{
if (!event.target.result)
{
var error = {
errorCode: 'bxElementNotFound',
errorName: 'bxElementNotFound',
errorMessage: "Element with id '"+primaryId+"' not found",
params: {dataBase: dataBase, storeName: storeName, primaryId: primaryId}
};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
return result;
}
if (typeof callback.success == 'function')
{
callback.success(event.target.result);
}
result.fulfill(event.target.result);
};
return result;
};
BX.indexedDB.getValueByIndex = function (dataBase, storeName, indexName, indexValue, callback)
{
callback = callback || {};
var result = new BX.Promise();
var store = BX.indexedDB.getObjectStore(dataBase, storeName, 'readwrite');
if (store.error)
{
store.error.params = {dataBase: dataBase, storeName: storeName, indexName: indexName, indexValue: indexValue};
if (typeof callback.error == 'function')
{
callback.error(store.error);
}
result.reject(store.error);
return result;
}
var request = null;
try
{
request = store.transaction.index(indexName).get(indexValue);
}
catch (e)
{
var error = {
errorCode: e.code? e.code: e.name,
errorName: e.name,
errorMessage: e.message,
params: {dataBase: dataBase, storeName: storeName, indexName: indexName, indexValue: indexValue}
};
result.reject(error);
return result;
}
request.onerror = function(event)
{
var error = {
errorCode: event.target.error.code,
errorName: event.target.error.name,
errorMessage: event.target.error.message,
params: {dataBase: dataBase, storeName: storeName, indexName: indexName, indexValue: indexValue}
};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
};
request.onsuccess = function(event)
{
if (!event.target.result)
{
var error = {
errorCode: 'bxElementNotFound',
errorName: 'bxElementNotFound',
errorMessage: "Element with indexName '"+indexName+"' and indexValue '"+indexValue+"' not found",
params: {dataBase: dataBase, storeName: storeName, indexName: indexName, indexValue: indexValue}
};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
return result;
}
if (typeof callback.success == 'function')
{
callback.success(event.target.result);
}
result.fulfill(event.target.result);
};
return result;
};
BX.indexedDB.openCursor = function (dataBase, storeName, keyRange, callback)
{
keyRange = keyRange || {};
callback = callback || {};
var result = new BX.Promise();
var keyRangeForCursor = null;
var store = BX.indexedDB.getObjectStore(dataBase, storeName);
if (store.error)
{
if (typeof callback.error == 'function')
{
callback.error(store.error);
}
result.reject(store.error);
return result;
}
if (typeof keyRange.lower != 'undefined')
{
if (typeof keyRange.upper != 'undefined')
{
keyRangeForCursor = window.IDBKeyRange.bound(keyRange.lower, keyRange.upper, !!keyRange.lowerOpen, !!keyRange.upperOpen);
}
else
{
keyRangeForCursor = window.IDBKeyRange.lowerBound(keyRange.lower, !!keyRange.lowerOpen);
}
}
else if (typeof keyRange.upper != 'undefined')
{
keyRangeForCursor = window.IDBKeyRange.upperBound(keyRange.upper, !!keyRange.upperOpen);
}
/*
* Filter (iterator) should be return follow text:
* continue - store item and go to next
* stop - store item and return collection
* skip - skip item and go to next
* break - return collection without store last item
*/
if (typeof callback.filter != 'function')
{
callback.filter = function(key, value){
return 'continue';
};
}
var request = store.transaction.openCursor(keyRangeForCursor);
request.onerror = function(event)
{
var error = {
errorCode: event.target.error.code,
errorName: event.target.error.name,
errorMessage: event.target.error.message
};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
return result;
};
var rows = [];
request.onsuccess = function(event)
{
var cursor = event.target.result;
if (cursor)
{
var filterResult = 'continue';
if (typeof callback.filter == 'function')
{
filterResult = callback.filter(cursor.key, cursor.value);
}
if (filterResult == 'break')
{
if (typeof callback.success == 'function')
{
callback.callback(rows);
}
result.fulfill(rows);
return result;
}
if (filterResult != 'skip')
{
rows.push({key: cursor.key, value: cursor.value});
}
if (filterResult == 'stop')
{
if (typeof callback.success == 'function')
{
callback.callback(rows);
}
result.fulfill(rows);
return result;
}
else
{
cursor['continue']();
}
}
else
{
if (typeof callback.success == 'function')
{
callback.callback(rows);
}
result.fulfill(rows);
return result;
}
};
return result;
};
BX.indexedDB.count = function (dataBase, storeName, callback)
{
callback = callback || {};
var result = new BX.Promise();
var store = BX.indexedDB.getObjectStore(dataBase, storeName);
if (store.error)
{
if (typeof callback.error == 'function')
{
callback.error(store.error);
}
result.reject(store.error);
return result;
}
var request = store.transaction.count();
request.onerror = function(event)
{
var error = {
errorCode: event.target.error.code,
errorName: event.target.error.name,
errorMessage: event.target.error.message
};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
};
request.onsuccess = function(event)
{
if (typeof callback.success == 'function')
{
callback.success(event.target.result);
}
result.fulfill(event.target.result);
};
return result;
};
BX.indexedDB.clearObjectStore = function (dataBase, storeName, callback)
{
callback = callback || {};
var result = new BX.Promise();
var store = BX.indexedDB.getObjectStore(dataBase, storeName, 'readwrite');
if (store.error)
{
if (typeof callback.error == 'function')
{
callback.error(store.error);
}
result.reject(store.error);
return result;
}
try
{
var request = store.transaction.clear();
}
catch(err)
{
var error = {
errorCode: err.code,
errorName: err.name,
errorMessage: err.message
};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
return result;
}
request.onerror = function(event)
{
var error = {
errorCode: event.target.error.code,
errorName: event.target.error.name,
errorMessage: event.target.error.message
};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
};
request.onsuccess = function()
{
if (typeof callback.success == 'function')
{
callback.success(true);
}
result.fulfill(true);
};
return result;
};
BX.indexedDB.deleteDatabase = function (dataBase, openedDataBase, callback)
{
callback = callback || {};
var result = new BX.Promise();
var indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
if (openedDataBase !== null)
{
var checkResult = BX.indexedDB.checkDatabaseObject(openedDataBase);
if (checkResult.result)
{
openedDataBase.close();
openedDataBase = null;
}
else
{
var error = {
errorCode: 'bxDataBaseInvalidFormat',
errorName: 'bxDataBaseInvalidFormat',
errorMessage: 'The given "openedDataBase" object is invalid format for IndexedDB. You need specify link to opened DB for correct delete.'
};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
return result;
}
}
var request = indexedDB.deleteDatabase(dataBase);
request.onerror = function(event)
{
var error = {
errorCode: event.target.error.code,
errorName: event.target.error.name,
errorMessage: event.target.error.message
};
if (typeof callback.error == 'function')
{
callback.error(error);
}
result.reject(error);
};
request.onsuccess = function()
{
if (typeof callback.success == 'function')
{
callback.success(true);
}
result.fulfill(true);
};
return result;
}
})(window);