pjs/dom/indexedDB/IDBDatabase.cpp

816 строки
22 KiB
C++
Исходник Обычный вид История

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Indexed Database.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Ben Turner <bent.mozilla@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "IDBDatabase.h"
#include "nsIIDBDatabaseException.h"
#include "mozilla/storage.h"
#include "nsDOMClassInfo.h"
#include "nsProxyRelease.h"
#include "nsThreadUtils.h"
#include "AsyncConnectionHelper.h"
#include "DatabaseInfo.h"
#include "IDBEvents.h"
#include "IDBObjectStore.h"
#include "IDBTransaction.h"
#include "IDBFactory.h"
#include "LazyIdleThread.h"
USING_INDEXEDDB_NAMESPACE
namespace {
const PRUint32 kDefaultDatabaseTimeoutSeconds = 30;
inline
nsISupports*
isupports_cast(IDBDatabase* aClassPtr)
{
return static_cast<nsISupports*>(
static_cast<IDBRequest::Generator*>(aClassPtr));
}
class SetVersionHelper : public AsyncConnectionHelper
{
public:
SetVersionHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
const nsAString& aVersion)
: AsyncConnectionHelper(aTransaction, aRequest), mVersion(aVersion)
{ }
PRUint16 DoDatabaseWork(mozIStorageConnection* aConnection);
PRUint16 GetSuccessResult(nsIWritableVariant* aResult);
private:
// In-params
nsString mVersion;
};
class CreateObjectStoreHelper : public AsyncConnectionHelper
{
public:
CreateObjectStoreHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
const nsAString& aName,
const nsAString& aKeyPath,
bool aAutoIncrement)
: AsyncConnectionHelper(aTransaction, aRequest), mName(aName),
mKeyPath(aKeyPath), mAutoIncrement(aAutoIncrement),
mId(LL_MININT)
{ }
PRUint16 DoDatabaseWork(mozIStorageConnection* aConnection);
PRUint16 GetSuccessResult(nsIWritableVariant* aResult);
protected:
// In-params.
nsString mName;
nsString mKeyPath;
bool mAutoIncrement;
// Out-params.
PRInt64 mId;
};
class RemoveObjectStoreHelper : public AsyncConnectionHelper
{
public:
RemoveObjectStoreHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
const nsAString& aName)
: AsyncConnectionHelper(aTransaction, aRequest), mName(aName)
{ }
PRUint16 DoDatabaseWork(mozIStorageConnection* aConnection);
PRUint16 GetSuccessResult(nsIWritableVariant* aResult);
private:
// In-params.
nsString mName;
};
class AutoFree
{
public:
AutoFree(void* aPtr) : mPtr(aPtr) { }
~AutoFree() { NS_Free(mPtr); }
private:
void* mPtr;
};
inline
nsresult
ConvertVariantToStringArray(nsIVariant* aVariant,
nsTArray<nsString>& aStringArray)
{
#ifdef DEBUG
PRUint16 type;
NS_ASSERTION(NS_SUCCEEDED(aVariant->GetDataType(&type)) &&
type == nsIDataType::VTYPE_ARRAY, "Bad arg!");
#endif
PRUint16 valueType;
nsIID iid;
PRUint32 valueCount;
void* rawArray;
nsresult rv = aVariant->GetAsArray(&valueType, &iid, &valueCount, &rawArray);
NS_ENSURE_SUCCESS(rv, rv);
AutoFree af(rawArray);
// Just delete anything that we don't expect and return.
if (valueType != nsIDataType::VTYPE_WCHAR_STR) {
switch (valueType) {
case nsIDataType::VTYPE_ID:
case nsIDataType::VTYPE_CHAR_STR: {
char** charArray = reinterpret_cast<char**>(rawArray);
for (PRUint32 index = 0; index < valueCount; index++) {
if (charArray[index]) {
NS_Free(charArray[index]);
}
}
} break;
case nsIDataType::VTYPE_INTERFACE:
case nsIDataType::VTYPE_INTERFACE_IS: {
nsISupports** supportsArray = reinterpret_cast<nsISupports**>(rawArray);
for (PRUint32 index = 0; index < valueCount; index++) {
NS_IF_RELEASE(supportsArray[index]);
}
} break;
default: {
// The other types are primitives that do not need to be freed.
}
}
return NS_ERROR_ILLEGAL_VALUE;
}
PRUnichar** strings = reinterpret_cast<PRUnichar**>(rawArray);
for (PRUint32 index = 0; index < valueCount; index++) {
nsString* newString = aStringArray.AppendElement();
if (!newString) {
NS_ERROR("Out of memory?");
for (; index < valueCount; index++) {
NS_Free(strings[index]);
}
return NS_ERROR_OUT_OF_MEMORY;
}
newString->Adopt(strings[index], -1);
}
return NS_OK;
}
} // anonymous namespace
// static
already_AddRefed<IDBDatabase>
IDBDatabase::Create(DatabaseInfo* aDatabaseInfo,
LazyIdleThread* aThread,
nsCOMPtr<mozIStorageConnection>& aConnection)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(aDatabaseInfo, "Null pointer!");
NS_ASSERTION(aThread, "Null pointer!");
NS_ASSERTION(aConnection, "Null pointer!");
nsRefPtr<IDBDatabase> db(new IDBDatabase());
db->mDatabaseId = aDatabaseInfo->id;
db->mName = aDatabaseInfo->name;
db->mDescription = aDatabaseInfo->description;
db->mFilePath = aDatabaseInfo->filePath;
aThread->SetWeakIdleObserver(db);
db->mConnectionThread = aThread;
db->mConnection.swap(aConnection);
return db.forget();
}
IDBDatabase::IDBDatabase()
: mDatabaseId(0)
{
}
IDBDatabase::~IDBDatabase()
{
if (mConnectionThread) {
mConnectionThread->SetWeakIdleObserver(nsnull);
}
CloseConnection();
if (mDatabaseId) {
DatabaseInfo* info;
if (!DatabaseInfo::Get(mDatabaseId, &info)) {
NS_ERROR("This should never fail!");
}
NS_ASSERTION(info->referenceCount, "Bad reference count!");
if (--info->referenceCount == 0) {
DatabaseInfo::Remove(mDatabaseId);
}
}
}
nsresult
IDBDatabase::GetOrCreateConnection(mozIStorageConnection** aResult)
{
NS_ASSERTION(!NS_IsMainThread(), "Wrong thread!");
if (!mConnection) {
mConnection = IDBFactory::GetConnection(mFilePath);
NS_ENSURE_TRUE(mConnection, NS_ERROR_FAILURE);
}
nsCOMPtr<mozIStorageConnection> result(mConnection);
result.forget(aResult);
return NS_OK;
}
void
IDBDatabase::CloseConnection()
{
if (mConnection) {
if (mConnectionThread) {
NS_ProxyRelease(mConnectionThread, mConnection, PR_TRUE);
}
else {
NS_ERROR("Leaking connection!");
mozIStorageConnection* leak;
mConnection.forget(&leak);
}
}
}
NS_IMPL_ADDREF(IDBDatabase)
NS_IMPL_RELEASE(IDBDatabase)
NS_INTERFACE_MAP_BEGIN(IDBDatabase)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, IDBRequest::Generator)
NS_INTERFACE_MAP_ENTRY(nsIIDBDatabase)
NS_INTERFACE_MAP_ENTRY(nsIObserver)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(IDBDatabase)
NS_INTERFACE_MAP_END
DOMCI_DATA(IDBDatabase, IDBDatabase)
NS_IMETHODIMP
IDBDatabase::GetName(nsAString& aName)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
aName.Assign(mName);
return NS_OK;
}
NS_IMETHODIMP
IDBDatabase::GetDescription(nsAString& aDescription)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
aDescription.Assign(mDescription);
return NS_OK;
}
NS_IMETHODIMP
IDBDatabase::GetVersion(nsAString& aVersion)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
DatabaseInfo* info;
if (!DatabaseInfo::Get(mDatabaseId, &info)) {
NS_ERROR("This should never fail!");
return NS_ERROR_UNEXPECTED;
}
aVersion.Assign(info->version);
return NS_OK;
}
NS_IMETHODIMP
IDBDatabase::GetObjectStoreNames(nsIDOMDOMStringList** aObjectStores)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
DatabaseInfo* info;
if (!DatabaseInfo::Get(mDatabaseId, &info)) {
NS_ERROR("This should never fail!");
return NS_ERROR_UNEXPECTED;
}
nsAutoTArray<nsString, 10> objectStoreNames;
if (!info->GetObjectStoreNames(objectStoreNames)) {
NS_WARNING("Couldn't get names!");
return NS_ERROR_UNEXPECTED;
}
nsRefPtr<nsDOMStringList> list(new nsDOMStringList());
PRUint32 count = objectStoreNames.Length();
for (PRUint32 index = 0; index < count; index++) {
NS_ENSURE_TRUE(list->Add(objectStoreNames[index]), NS_ERROR_OUT_OF_MEMORY);
}
list.forget(aObjectStores);
return NS_OK;
}
NS_IMETHODIMP
IDBDatabase::CreateObjectStore(const nsAString& aName,
const nsAString& aKeyPath,
PRBool aAutoIncrement,
JSContext* aCx,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (aName.IsEmpty()) {
return NS_ERROR_INVALID_ARG;
}
// XPConnect makes "null" into a void string, we need an empty string.
nsString keyPath(aKeyPath);
if (keyPath.IsVoid()) {
keyPath.Truncate();
}
DatabaseInfo* info;
if (!DatabaseInfo::Get(mDatabaseId, &info)) {
NS_ERROR("This should never fail!");
return NS_ERROR_UNEXPECTED;
}
if (info->ContainsStoreName(aName)) {
return NS_ERROR_ALREADY_INITIALIZED;
}
nsTArray<nsString> objectStores;
nsString* name = objectStores.AppendElement(aName);
if (!name) {
NS_ERROR("Out of memory?");
return nsIIDBDatabaseException::UNKNOWN_ERR;
}
nsRefPtr<IDBTransaction> transaction =
IDBTransaction::Create(aCx, this, objectStores,
nsIIDBTransaction::READ_WRITE,
kDefaultDatabaseTimeoutSeconds);
nsRefPtr<IDBRequest> request =
GenerateWriteRequest(transaction->ScriptContext(), transaction->Owner());
NS_ENSURE_TRUE(request, NS_ERROR_FAILURE);
nsRefPtr<CreateObjectStoreHelper> helper =
new CreateObjectStoreHelper(transaction, request, aName, keyPath,
!!aAutoIncrement);
nsresult rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBDatabase::RemoveObjectStore(const nsAString& aName,
JSContext* aCx,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (aName.IsEmpty()) {
return NS_ERROR_INVALID_ARG;
}
DatabaseInfo* info;
if (!DatabaseInfo::Get(mDatabaseId, &info)) {
NS_ERROR("This should never fail!");
return NS_ERROR_UNEXPECTED;
}
if (!info->ContainsStoreName(aName)) {
return NS_ERROR_NOT_AVAILABLE;
}
nsTArray<nsString> storesToOpen;
if (!storesToOpen.AppendElement(aName)) {
NS_ERROR("Out of memory!");
return NS_ERROR_OUT_OF_MEMORY;
}
nsRefPtr<IDBTransaction> transaction =
IDBTransaction::Create(aCx, this, storesToOpen,
nsIIDBTransaction::READ_WRITE,
kDefaultDatabaseTimeoutSeconds);
NS_ENSURE_TRUE(transaction, NS_ERROR_FAILURE);
nsRefPtr<IDBRequest> request =
GenerateWriteRequest(transaction->ScriptContext(), transaction->Owner());
NS_ENSURE_TRUE(request, NS_ERROR_FAILURE);
nsRefPtr<RemoveObjectStoreHelper> helper =
new RemoveObjectStoreHelper(transaction, request, aName);
nsresult rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBDatabase::SetVersion(const nsAString& aVersion,
JSContext* aCx,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
DatabaseInfo* info;
if (!DatabaseInfo::Get(mDatabaseId, &info)) {
NS_ERROR("This should never fail!");
return NS_ERROR_UNEXPECTED;
}
// Lock the whole database
nsTArray<nsString> storesToOpen;
nsRefPtr<IDBTransaction> transaction =
IDBTransaction::Create(aCx, this, storesToOpen, IDBTransaction::FULL_LOCK,
kDefaultDatabaseTimeoutSeconds);
NS_ENSURE_TRUE(transaction, NS_ERROR_FAILURE);
nsRefPtr<IDBRequest> request =
GenerateWriteRequest(transaction->ScriptContext(), transaction->Owner());
NS_ENSURE_TRUE(request, NS_ERROR_FAILURE);
nsRefPtr<SetVersionHelper> helper =
new SetVersionHelper(transaction, request, aVersion);
nsresult rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBDatabase::Transaction(nsIVariant* aStoreNames,
PRUint16 aMode,
PRUint32 aTimeout,
JSContext* aCx,
PRUint8 aOptionalArgCount,
nsIIDBTransaction** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (aOptionalArgCount) {
if (aMode != nsIIDBTransaction::READ_WRITE &&
aMode != nsIIDBTransaction::READ_ONLY &&
aMode != nsIIDBTransaction::SNAPSHOT_READ) {
return NS_ERROR_INVALID_ARG;
}
if (aMode == nsIIDBTransaction::SNAPSHOT_READ) {
NS_NOTYETIMPLEMENTED("Implement me!");
return NS_ERROR_NOT_IMPLEMENTED;
}
}
else {
aMode = nsIIDBTransaction::READ_ONLY;
}
if (aOptionalArgCount <= 1) {
aTimeout = kDefaultDatabaseTimeoutSeconds;
}
PRUint16 type;
nsresult rv = aStoreNames->GetDataType(&type);
NS_ENSURE_SUCCESS(rv, rv);
DatabaseInfo* info;
if (!DatabaseInfo::Get(mDatabaseId, &info)) {
NS_ERROR("This should never fail!");
return NS_ERROR_UNEXPECTED;
}
nsTArray<nsString> storesToOpen;
switch (type) {
case nsIDataType::VTYPE_VOID:
case nsIDataType::VTYPE_EMPTY:
case nsIDataType::VTYPE_EMPTY_ARRAY: {
// Empty, request all object stores
if (!info->GetObjectStoreNames(storesToOpen)) {
NS_ERROR("Out of memory?");
return NS_ERROR_OUT_OF_MEMORY;
}
} break;
case nsIDataType::VTYPE_WSTRING_SIZE_IS: {
// Single name
nsString name;
rv = aStoreNames->GetAsAString(name);
NS_ENSURE_SUCCESS(rv, rv);
if (!info->ContainsStoreName(name)) {
return NS_ERROR_NOT_AVAILABLE;
}
if (!storesToOpen.AppendElement(name)) {
NS_ERROR("Out of memory?");
return NS_ERROR_OUT_OF_MEMORY;
}
} break;
case nsIDataType::VTYPE_ARRAY: {
nsTArray<nsString> names;
rv = ConvertVariantToStringArray(aStoreNames, names);
NS_ENSURE_SUCCESS(rv, rv);
PRUint32 nameCount = names.Length();
for (PRUint32 nameIndex = 0; nameIndex < nameCount; nameIndex++) {
nsString& name = names[nameIndex];
if (!info->ContainsStoreName(name)) {
return NS_ERROR_NOT_AVAILABLE;
}
if (!storesToOpen.AppendElement(name)) {
NS_ERROR("Out of memory?");
return NS_ERROR_OUT_OF_MEMORY;
}
}
NS_ASSERTION(nameCount == storesToOpen.Length(), "Should have bailed!");
} break;
case nsIDataType::VTYPE_INTERFACE:
case nsIDataType::VTYPE_INTERFACE_IS: {
nsCOMPtr<nsISupports> supports;
nsID *iid;
rv = aStoreNames->GetAsInterface(&iid, getter_AddRefs(supports));
NS_ENSURE_SUCCESS(rv, rv);
NS_Free(iid);
nsCOMPtr<nsIDOMDOMStringList> stringList(do_QueryInterface(supports));
if (!stringList) {
// We don't support anything other than nsIDOMDOMStringList.
return NS_ERROR_ILLEGAL_VALUE;
}
PRUint32 stringCount;
rv = stringList->GetLength(&stringCount);
NS_ENSURE_SUCCESS(rv, rv);
for (PRUint32 stringIndex = 0; stringIndex < stringCount; stringIndex++) {
nsString name;
rv = stringList->Item(stringIndex, name);
NS_ENSURE_SUCCESS(rv, rv);
if (!info->ContainsStoreName(name)) {
return NS_ERROR_NOT_AVAILABLE;
}
if (!storesToOpen.AppendElement(name)) {
NS_ERROR("Out of memory?");
return NS_ERROR_OUT_OF_MEMORY;
}
}
} break;
default:
return NS_ERROR_ILLEGAL_VALUE;
}
nsRefPtr<IDBTransaction> transaction =
IDBTransaction::Create(aCx, this, storesToOpen, aMode,
kDefaultDatabaseTimeoutSeconds);
NS_ENSURE_TRUE(transaction, NS_ERROR_FAILURE);
transaction.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBDatabase::ObjectStore(const nsAString& aName,
PRUint16 aMode,
JSContext* aCx,
PRUint8 aOptionalArgCount,
nsIIDBObjectStore** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (aName.IsEmpty()) {
return NS_ERROR_INVALID_ARG;
}
if (aOptionalArgCount) {
if (aMode != nsIIDBTransaction::READ_WRITE &&
aMode != nsIIDBTransaction::READ_ONLY &&
aMode != nsIIDBTransaction::SNAPSHOT_READ) {
return NS_ERROR_INVALID_ARG;
}
}
else {
aMode = nsIIDBTransaction::READ_ONLY;
}
DatabaseInfo* info;
if (!DatabaseInfo::Get(mDatabaseId, &info)) {
NS_ERROR("This should never fail!");
return NS_ERROR_UNEXPECTED;
}
if (!info->ContainsStoreName(aName)) {
return NS_ERROR_NOT_AVAILABLE;
}
nsTArray<nsString> storesToOpen;
if (!storesToOpen.AppendElement(aName)) {
NS_ERROR("Out of memory?");
return NS_ERROR_OUT_OF_MEMORY;
}
nsRefPtr<IDBTransaction> transaction =
IDBTransaction::Create(aCx, this, storesToOpen, aMode,
kDefaultDatabaseTimeoutSeconds);
NS_ENSURE_TRUE(transaction, NS_ERROR_FAILURE);
nsresult rv = transaction->ObjectStore(aName, _retval);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
IDBDatabase::Observe(nsISupports* aSubject,
const char* aTopic,
const PRUnichar* aData)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ENSURE_FALSE(strcmp(aTopic, IDLE_THREAD_TOPIC), NS_ERROR_UNEXPECTED);
CloseConnection();
return NS_OK;
}
PRUint16
SetVersionHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
NS_PRECONDITION(aConnection, "Passing a null connection!");
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = aConnection->CreateStatement(NS_LITERAL_CSTRING(
"UPDATE database "
"SET version = :version"
), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("version"), mVersion);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
if (NS_FAILED(stmt->Execute())) {
return nsIIDBDatabaseException::CONSTRAINT_ERR;
}
return OK;
}
PRUint16
SetVersionHelper::GetSuccessResult(nsIWritableVariant* /* aResult */)
{
DatabaseInfo* info;
if (!DatabaseInfo::Get(mDatabase->Id(), &info)) {
NS_ERROR("This should never fail!");
return nsIIDBDatabaseException::UNKNOWN_ERR;
}
info->version = mVersion;
return OK;
}
PRUint16
CreateObjectStoreHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
// Insert the data into the database.
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = aConnection->CreateStatement(NS_LITERAL_CSTRING(
"INSERT INTO object_store (name, key_path, auto_increment) "
"VALUES (:name, :key_path, :auto_increment)"
), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("name"), mName);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("key_path"), mKeyPath);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("auto_increment"),
mAutoIncrement ? 1 : 0);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
if (NS_FAILED(stmt->Execute())) {
return nsIIDBDatabaseException::CONSTRAINT_ERR;
}
// Get the id of this object store, and store it for future use.
(void)aConnection->GetLastInsertRowID(&mId);
return OK;
}
PRUint16
CreateObjectStoreHelper::GetSuccessResult(nsIWritableVariant* aResult)
{
nsAutoPtr<ObjectStoreInfo> info(new ObjectStoreInfo());
info->name = mName;
info->id = mId;
info->keyPath = mKeyPath;
info->autoIncrement = mAutoIncrement;
info->databaseId = mDatabase->Id();
if (!ObjectStoreInfo::Put(info)) {
NS_ERROR("Put failed!");
return nsIIDBDatabaseException::UNKNOWN_ERR;
}
info.forget();
nsCOMPtr<nsIIDBObjectStore> result;
nsresult rv = mTransaction->ObjectStore(mName, getter_AddRefs(result));
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
aResult->SetAsISupports(result);
return OK;
}
PRUint16
RemoveObjectStoreHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = aConnection->CreateStatement(NS_LITERAL_CSTRING(
"DELETE FROM object_store "
"WHERE name = :name "
), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("name"), mName);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
if (NS_FAILED(stmt->Execute())) {
return nsIIDBDatabaseException::NOT_FOUND_ERR;
}
return OK;
}
PRUint16
RemoveObjectStoreHelper::GetSuccessResult(nsIWritableVariant* /* aResult */)
{
ObjectStoreInfo::Remove(mDatabase->Id(), mName);
return OK;
}