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gecko/dom/indexedDB/IDBObjectStore.cpp
Luke Wagner 99411cc93d Bug 549143 - fatvals
2010-07-14 23:19:36 -07:00

2158 lines
60 KiB
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/* -*- 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 "IDBObjectStore.h"
#include "nsIIDBDatabaseException.h"
#include "nsIJSContextStack.h"
#include "nsIUUIDGenerator.h"
#include "nsIVariant.h"
#include "jscntxt.h"
#include "mozilla/storage.h"
#include "nsContentUtils.h"
#include "nsDOMClassInfo.h"
#include "nsJSON.h"
#include "nsJSUtils.h"
#include "nsServiceManagerUtils.h"
#include "nsThreadUtils.h"
#include "AsyncConnectionHelper.h"
#include "IDBCursor.h"
#include "IDBEvents.h"
#include "IDBIndex.h"
#include "IDBKeyRange.h"
#include "IDBTransaction.h"
#include "DatabaseInfo.h"
#include "Savepoint.h"
USING_INDEXEDDB_NAMESPACE
namespace {
class AddHelper : public AsyncConnectionHelper
{
public:
AddHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
PRInt64 aObjectStoreID,
const nsAString& aKeyPath,
const nsAString& aValue,
const Key& aKey,
bool aAutoIncrement,
bool aCreate,
bool aOverwrite,
nsTArray<IndexUpdateInfo>& aIndexUpdateInfo)
: AsyncConnectionHelper(aTransaction, aRequest), mOSID(aObjectStoreID),
mKeyPath(aKeyPath), mValue(aValue), mKey(aKey),
mAutoIncrement(aAutoIncrement), mCreate(aCreate), mOverwrite(aOverwrite)
{
mIndexUpdateInfo.SwapElements(aIndexUpdateInfo);
}
PRUint16 DoDatabaseWork(mozIStorageConnection* aConnection);
PRUint16 GetSuccessResult(nsIWritableVariant* aResult);
nsresult ModifyValueForNewKey();
nsresult UpdateIndexes(mozIStorageConnection* aConnection,
PRInt64 aObjectDataId);
private:
// In-params.
const PRInt64 mOSID;
const nsString mKeyPath;
// These may change in the autoincrement case.
nsString mValue;
Key mKey;
const bool mAutoIncrement;
const bool mCreate;
const bool mOverwrite;
nsTArray<IndexUpdateInfo> mIndexUpdateInfo;
};
class GetHelper : public AsyncConnectionHelper
{
public:
GetHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
PRInt64 aObjectStoreID,
const Key& aKey,
bool aAutoIncrement)
: AsyncConnectionHelper(aTransaction, aRequest), mOSID(aObjectStoreID),
mKey(aKey), mAutoIncrement(aAutoIncrement)
{ }
PRUint16 DoDatabaseWork(mozIStorageConnection* aConnection);
PRUint16 OnSuccess(nsIDOMEventTarget* aTarget);
protected:
// In-params.
const PRInt64 mOSID;
const Key mKey;
const bool mAutoIncrement;
private:
// Out-params.
nsString mValue;
};
class RemoveHelper : public GetHelper
{
public:
RemoveHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
PRInt64 aObjectStoreID,
const Key& aKey,
bool aAutoIncrement)
: GetHelper(aTransaction, aRequest, aObjectStoreID, aKey, aAutoIncrement)
{ }
PRUint16 DoDatabaseWork(mozIStorageConnection* aConnection);
PRUint16 OnSuccess(nsIDOMEventTarget* aTarget);
PRUint16 GetSuccessResult(nsIWritableVariant* aResult);
};
class OpenCursorHelper : public AsyncConnectionHelper
{
public:
OpenCursorHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
IDBObjectStore* aObjectStore,
const Key& aLeftKey,
const Key& aRightKey,
PRUint16 aKeyRangeFlags,
PRUint16 aDirection,
PRBool aPreload)
: AsyncConnectionHelper(aTransaction, aRequest), mObjectStore(aObjectStore),
mLeftKey(aLeftKey), mRightKey(aRightKey), mKeyRangeFlags(aKeyRangeFlags),
mDirection(aDirection), mPreload(aPreload)
{ }
PRUint16 DoDatabaseWork(mozIStorageConnection* aConnection);
PRUint16 GetSuccessResult(nsIWritableVariant* aResult);
private:
// In-params.
nsRefPtr<IDBObjectStore> mObjectStore;
const Key mLeftKey;
const Key mRightKey;
const PRUint16 mKeyRangeFlags;
const PRUint16 mDirection;
const PRBool mPreload;
// Out-params.
nsTArray<KeyValuePair> mData;
};
class CreateIndexHelper : public AsyncConnectionHelper
{
public:
CreateIndexHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
const nsAString& aName,
const nsAString& aKeyPath,
bool aUnique,
bool aAutoIncrement,
IDBObjectStore* aObjectStore)
: AsyncConnectionHelper(aTransaction, aRequest), mName(aName),
mKeyPath(aKeyPath), mUnique(aUnique), mAutoIncrement(aAutoIncrement),
mObjectStore(aObjectStore), mId(LL_MININT)
{ }
PRUint16 DoDatabaseWork(mozIStorageConnection* aConnection);
PRUint16 GetSuccessResult(nsIWritableVariant* aResult);
private:
PRUint16 InsertDataFromObjectStore(mozIStorageConnection* aConnection);
// In-params.
nsString mName;
nsString mKeyPath;
const bool mUnique;
const bool mAutoIncrement;
nsRefPtr<IDBObjectStore> mObjectStore;
// Out-params.
PRInt64 mId;
};
class RemoveIndexHelper : public AsyncConnectionHelper
{
public:
RemoveIndexHelper(IDBTransaction* aDatabase,
IDBRequest* aRequest,
const nsAString& aName,
IDBObjectStore* aObjectStore)
: AsyncConnectionHelper(aDatabase, aRequest), mName(aName),
mObjectStore(aObjectStore)
{ }
PRUint16 DoDatabaseWork(mozIStorageConnection* aConnection);
PRUint16 GetSuccessResult(nsIWritableVariant* aResult);
private:
// In-params
nsString mName;
nsRefPtr<IDBObjectStore> mObjectStore;
};
class GetAllHelper : public AsyncConnectionHelper
{
public:
GetAllHelper(IDBTransaction* aTransaction,
IDBRequest* aRequest,
PRInt64 aObjectStoreID,
const Key& aLeftKey,
const Key& aRightKey,
const PRUint16 aKeyRangeFlags,
const PRUint32 aLimit,
bool aAutoIncrement)
: AsyncConnectionHelper(aTransaction, aRequest), mOSID(aObjectStoreID),
mLeftKey(aLeftKey), mRightKey(aRightKey), mKeyRangeFlags(aKeyRangeFlags),
mLimit(aLimit), mAutoIncrement(aAutoIncrement)
{ }
PRUint16 DoDatabaseWork(mozIStorageConnection* aConnection);
PRUint16 OnSuccess(nsIDOMEventTarget* aTarget);
protected:
// In-params.
const PRInt64 mOSID;
const Key mLeftKey;
const Key mRightKey;
const PRUint16 mKeyRangeFlags;
const PRUint32 mLimit;
const bool mAutoIncrement;
private:
// Out-params.
nsTArray<nsString> mValues;
};
inline
nsresult
GetKeyFromObject(JSContext* aCx,
JSObject* aObj,
const nsString& aKeyPath,
Key& aKey)
{
NS_PRECONDITION(aCx && aObj, "Null pointers!");
NS_ASSERTION(!aKeyPath.IsVoid(), "This will explode!");
const jschar* keyPathChars = reinterpret_cast<const jschar*>(aKeyPath.get());
const size_t keyPathLen = aKeyPath.Length();
jsval key;
JSBool ok = JS_GetUCProperty(aCx, aObj, keyPathChars, keyPathLen, &key);
NS_ENSURE_TRUE(ok, NS_ERROR_FAILURE);
nsresult rv = IDBObjectStore::GetKeyFromJSVal(key, aKey);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
} // anonymous namespace
// static
already_AddRefed<IDBObjectStore>
IDBObjectStore::Create(IDBDatabase* aDatabase,
IDBTransaction* aTransaction,
const ObjectStoreInfo* aStoreInfo,
PRUint16 aMode)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
nsRefPtr<IDBObjectStore> objectStore = new IDBObjectStore();
objectStore->mDatabase = aDatabase;
objectStore->mTransaction = aTransaction;
objectStore->mName = aStoreInfo->name;
objectStore->mId = aStoreInfo->id;
objectStore->mKeyPath = aStoreInfo->keyPath;
objectStore->mAutoIncrement = aStoreInfo->autoIncrement;
objectStore->mDatabaseId = aStoreInfo->databaseId;
objectStore->mMode = aMode;
return objectStore.forget();
}
// static
nsresult
IDBObjectStore::GetKeyFromVariant(nsIVariant* aKeyVariant,
Key& aKey)
{
if (!aKeyVariant) {
aKey = Key::UNSETKEY;
return NS_OK;
}
PRUint16 type;
nsresult rv = aKeyVariant->GetDataType(&type);
NS_ENSURE_SUCCESS(rv, rv);
// See xpcvariant.cpp, these are the only types we should expect.
switch (type) {
case nsIDataType::VTYPE_VOID:
aKey = Key::UNSETKEY;
break;
case nsIDataType::VTYPE_EMPTY:
aKey = Key::NULLKEY;
break;
case nsIDataType::VTYPE_WSTRING_SIZE_IS:
rv = aKeyVariant->GetAsAString(aKey.ToString());
NS_ENSURE_SUCCESS(rv, rv);
break;
case nsIDataType::VTYPE_INT32:
case nsIDataType::VTYPE_DOUBLE:
rv = aKeyVariant->GetAsInt64(aKey.ToIntPtr());
NS_ENSURE_SUCCESS(rv, rv);
break;
default:
return NS_ERROR_INVALID_ARG;
}
return NS_OK;
}
// static
nsresult
IDBObjectStore::GetKeyFromJSVal(jsval aKeyVal,
Key& aKey)
{
if (JSVAL_IS_VOID(aKeyVal)) {
aKey = Key::UNSETKEY;
}
else if (JSVAL_IS_NULL(aKeyVal)) {
aKey = Key::NULLKEY;
}
else if (JSVAL_IS_STRING(aKeyVal)) {
aKey = nsDependentJSString(aKeyVal);
}
else if (JSVAL_IS_INT(aKeyVal)) {
aKey = JSVAL_TO_INT(aKeyVal);
}
else if (JSVAL_IS_DOUBLE(aKeyVal)) {
aKey = JSVAL_TO_DOUBLE(aKeyVal);
}
else {
return NS_ERROR_INVALID_ARG;
}
return NS_OK;
}
// static
nsresult
IDBObjectStore::GetJSValFromKey(const Key& aKey,
JSContext* aCx,
jsval* aKeyVal)
{
if (aKey.IsUnset()) {
*aKeyVal = JSVAL_VOID;
return NS_OK;
}
if (aKey.IsNull()) {
*aKeyVal = JSVAL_NULL;
return NS_OK;
}
if (aKey.IsInt()) {
JSBool ok = JS_NewNumberValue(aCx, aKey.IntValue(), aKeyVal);
NS_ENSURE_TRUE(ok, NS_ERROR_FAILURE);
return NS_OK;
}
if (aKey.IsString()) {
const nsString& keyString = aKey.StringValue();
JSString* str =
JS_NewUCStringCopyN(aCx,
reinterpret_cast<const jschar*>(keyString.get()),
keyString.Length());
NS_ENSURE_TRUE(str, NS_ERROR_FAILURE);
*aKeyVal = STRING_TO_JSVAL(str);
return NS_OK;
}
NS_NOTREACHED("Unknown key type!");
return NS_ERROR_INVALID_ARG;
}
// static
nsresult
IDBObjectStore::GetJSONFromArg0(/* jsval arg0, */
nsAString& aJSON)
{
nsIXPConnect* xpc = nsContentUtils::XPConnect();
NS_ENSURE_TRUE(xpc, NS_ERROR_UNEXPECTED);
nsAXPCNativeCallContext* cc;
nsresult rv = xpc->GetCurrentNativeCallContext(&cc);
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(cc, NS_ERROR_UNEXPECTED);
PRUint32 argc;
rv = cc->GetArgc(&argc);
NS_ENSURE_SUCCESS(rv, rv);
if (argc < 1) {
return NS_ERROR_XPC_NOT_ENOUGH_ARGS;
}
jsval* argv;
rv = cc->GetArgvPtr(&argv);
NS_ENSURE_SUCCESS(rv, rv);
JSContext* cx;
rv = cc->GetJSContext(&cx);
NS_ENSURE_SUCCESS(rv, rv);
JSAutoRequest ar(cx);
js::AutoValueRooter clone(cx);
rv = nsContentUtils::CreateStructuredClone(cx, argv[0], clone.jsval_addr());
if (NS_FAILED(rv)) {
return rv;
}
nsCOMPtr<nsIJSON> json(new nsJSON());
rv = json->EncodeFromJSVal(clone.jsval_addr(), cx, aJSON);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
// static
nsresult
IDBObjectStore::GetKeyPathValueFromJSON(const nsAString& aJSON,
const nsAString& aKeyPath,
JSContext** aCx,
Key& aValue)
{
NS_ASSERTION(!aJSON.IsEmpty(), "Empty JSON!");
NS_ASSERTION(!aKeyPath.IsEmpty(), "Empty keyPath!");
NS_ASSERTION(aCx, "Null pointer!");
nsresult rv;
if (!*aCx) {
rv = nsContentUtils::ThreadJSContextStack()->GetSafeJSContext(aCx);
NS_ENSURE_SUCCESS(rv, rv);
}
JSAutoRequest ar(*aCx);
js::AutoValueRooter clone(*aCx);
nsCOMPtr<nsIJSON> json(new nsJSON());
rv = json->DecodeToJSVal(aJSON, *aCx, clone.jsval_addr());
NS_ENSURE_SUCCESS(rv, rv);
if (JSVAL_IS_PRIMITIVE(clone.jsval_value())) {
// This isn't an object, so just leave the key unset.
aValue = Key::UNSETKEY;
return NS_OK;
}
JSObject* obj = JSVAL_TO_OBJECT(clone.jsval_value());
const jschar* keyPathChars =
reinterpret_cast<const jschar*>(aKeyPath.BeginReading());
const size_t keyPathLen = aKeyPath.Length();
js::AutoValueRooter value(*aCx);
JSBool ok = JS_GetUCProperty(*aCx, obj, keyPathChars, keyPathLen,
value.jsval_addr());
NS_ENSURE_TRUE(ok, NS_ERROR_FAILURE);
rv = GetKeyFromJSVal(value.jsval_value(), aValue);
if (NS_FAILED(rv) || aValue.IsNull()) {
// If the object doesn't have a value that we can use for our index then we
// leave it unset.
aValue = Key::UNSETKEY;
}
return NS_OK;
}
/* static */
nsresult
IDBObjectStore::GetIndexUpdateInfo(ObjectStoreInfo* aObjectStoreInfo,
JSContext* aCx,
jsval aObject,
nsTArray<IndexUpdateInfo>& aUpdateInfoArray)
{
JSObject* cloneObj = nsnull;
PRUint32 count = aObjectStoreInfo->indexes.Length();
if (count && !JSVAL_IS_PRIMITIVE(aObject)) {
if (!aUpdateInfoArray.SetCapacity(count)) {
NS_ERROR("Out of memory!");
return NS_ERROR_OUT_OF_MEMORY;
}
cloneObj = JSVAL_TO_OBJECT(aObject);
for (PRUint32 indexesIndex = 0; indexesIndex < count; indexesIndex++) {
const IndexInfo& indexInfo = aObjectStoreInfo->indexes[indexesIndex];
const jschar* keyPathChars =
reinterpret_cast<const jschar*>(indexInfo.keyPath.BeginReading());
const size_t keyPathLen = indexInfo.keyPath.Length();
jsval keyPathValue;
JSBool ok = JS_GetUCProperty(aCx, cloneObj, keyPathChars, keyPathLen,
&keyPathValue);
NS_ENSURE_TRUE(ok, NS_ERROR_FAILURE);
Key value;
nsresult rv = GetKeyFromJSVal(keyPathValue, value);
if (NS_FAILED(rv) || value.IsUnset() || value.IsNull()) {
// Not a value we can do anything with, ignore it.
continue;
}
IndexUpdateInfo* updateInfo = aUpdateInfoArray.AppendElement();
updateInfo->info = indexInfo;
updateInfo->value = value;
}
}
else {
aUpdateInfoArray.Clear();
}
return NS_OK;
}
/* static */
nsresult
IDBObjectStore::UpdateIndexes(IDBTransaction* aTransaction,
PRInt64 aObjectStoreId,
const Key& aObjectStoreKey,
bool aAutoIncrement,
bool aOverwrite,
PRInt64 aObjectDataId,
const nsTArray<IndexUpdateInfo>& aUpdateInfoArray)
{
#ifdef DEBUG
if (aAutoIncrement) {
NS_ASSERTION(aObjectDataId != LL_MININT, "Bad objectData id!");
}
else {
NS_ASSERTION(aObjectDataId == LL_MININT, "Bad objectData id!");
}
#endif
PRUint32 indexCount = aUpdateInfoArray.Length();
NS_ASSERTION(indexCount, "Don't call me!");
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv;
if (!aAutoIncrement) {
stmt = aTransaction->GetCachedStatement(
"SELECT id "
"FROM object_data "
"WHERE object_store_id = :osid "
"AND key_value = :key_value"
);
NS_ENSURE_TRUE(stmt, NS_ERROR_FAILURE);
mozStorageStatementScoper scoper(stmt);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), aObjectStoreId);
NS_ENSURE_SUCCESS(rv, rv);
NS_ASSERTION(!aObjectStoreKey.IsUnset(), "This shouldn't happen!");
NS_NAMED_LITERAL_CSTRING(keyValue, "key_value");
if (aObjectStoreKey.IsInt()) {
rv = stmt->BindInt64ByName(keyValue, aObjectStoreKey.IntValue());
}
else if (aObjectStoreKey.IsString()) {
rv = stmt->BindStringByName(keyValue, aObjectStoreKey.StringValue());
}
else {
NS_NOTREACHED("Unknown key type!");
}
NS_ENSURE_SUCCESS(rv, rv);
PRBool hasResult;
rv = stmt->ExecuteStep(&hasResult);
NS_ENSURE_SUCCESS(rv, rv);
if (!hasResult) {
NS_ERROR("This is bad, we just added this value! Where'd it go?!");
return NS_ERROR_FAILURE;
}
aObjectDataId = stmt->AsInt64(0);
}
NS_ASSERTION(aObjectDataId != LL_MININT, "Bad objectData id!");
for (PRUint32 indexIndex = 0; indexIndex < indexCount; indexIndex++) {
const IndexUpdateInfo& updateInfo = aUpdateInfoArray[indexIndex];
stmt = aTransaction->IndexUpdateStatement(updateInfo.info.autoIncrement,
updateInfo.info.unique,
aOverwrite);
NS_ENSURE_TRUE(stmt, NS_ERROR_FAILURE);
mozStorageStatementScoper scoper2(stmt);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("index_id"),
updateInfo.info.id);
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("object_data_id"),
aObjectDataId);
NS_ENSURE_SUCCESS(rv, rv);
NS_NAMED_LITERAL_CSTRING(objectDataKey, "object_data_key");
if (aObjectStoreKey.IsInt()) {
rv = stmt->BindInt64ByName(objectDataKey, aObjectStoreKey.IntValue());
}
else if (aObjectStoreKey.IsString()) {
rv = stmt->BindStringByName(objectDataKey, aObjectStoreKey.StringValue());
}
else {
NS_NOTREACHED("Unknown key type!");
}
NS_ENSURE_SUCCESS(rv, rv);
NS_NAMED_LITERAL_CSTRING(value, "value");
if (updateInfo.value.IsInt()) {
rv = stmt->BindInt64ByName(value, updateInfo.value.IntValue());
}
else if (updateInfo.value.IsString()) {
rv = stmt->BindStringByName(value, updateInfo.value.StringValue());
}
else if (updateInfo.value.IsUnset()) {
rv = stmt->BindStringByName(value, updateInfo.value.StringValue());
}
else {
NS_NOTREACHED("Unknown key type!");
}
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->Execute();
if (NS_FAILED(rv)) {
return rv;
}
}
return NS_OK;
}
ObjectStoreInfo*
IDBObjectStore::GetObjectStoreInfo()
{
NS_PRECONDITION(NS_IsMainThread(), "Wrong thread!");
ObjectStoreInfo* info;
if (!ObjectStoreInfo::Get(mDatabaseId, mName, &info)) {
NS_ERROR("This should never fail!");
return nsnull;
}
return info;
}
IDBObjectStore::IDBObjectStore()
: mId(LL_MININT),
mAutoIncrement(PR_FALSE),
mMode(nsIIDBTransaction::READ_WRITE)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
}
IDBObjectStore::~IDBObjectStore()
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
}
nsresult
IDBObjectStore::GetAddInfo(JSContext* aCx,
jsval aValue,
jsval aKeyVal,
nsString& aJSON,
Key& aKey,
nsTArray<IndexUpdateInfo>& aUpdateInfoArray)
{
JSAutoRequest ar(aCx);
js::AutoValueRooter clone(aCx);
nsresult rv = nsContentUtils::CreateStructuredClone(aCx, aValue,
clone.jsval_addr());
if (NS_FAILED(rv)) {
return rv;
}
if (mKeyPath.IsEmpty()) {
rv = GetKeyFromJSVal(aKeyVal, aKey);
NS_ENSURE_SUCCESS(rv, rv);
}
else {
// Inline keys live on the object. Make sure it is an object.
if (JSVAL_IS_PRIMITIVE(clone.jsval_value())) {
return NS_ERROR_INVALID_ARG;
}
rv = GetKeyFromObject(aCx, JSVAL_TO_OBJECT(clone.jsval_value()), mKeyPath, aKey);
NS_ENSURE_SUCCESS(rv, rv);
// Except if null was passed, in which case we're supposed to generate the
// key.
if (aKey.IsUnset() && JSVAL_IS_NULL(aKeyVal)) {
aKey = Key::NULLKEY;
}
}
if (aKey.IsUnset() && !mAutoIncrement) {
return NS_ERROR_INVALID_ARG;
}
// Figure out indexes and the index values to update here.
ObjectStoreInfo* objectStoreInfo = GetObjectStoreInfo();
NS_ENSURE_TRUE(objectStoreInfo, NS_ERROR_FAILURE);
rv = GetIndexUpdateInfo(objectStoreInfo, aCx, clone.jsval_value(), aUpdateInfoArray);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIJSON> json(new nsJSON());
rv = json->EncodeFromJSVal(clone.jsval_addr(), aCx, aJSON);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMPL_ADDREF(IDBObjectStore)
NS_IMPL_RELEASE(IDBObjectStore)
NS_INTERFACE_MAP_BEGIN(IDBObjectStore)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, IDBRequest::Generator)
NS_INTERFACE_MAP_ENTRY(nsIIDBObjectStore)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(IDBObjectStore)
NS_INTERFACE_MAP_END
DOMCI_DATA(IDBObjectStore, IDBObjectStore)
NS_IMETHODIMP
IDBObjectStore::GetName(nsAString& aName)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
aName.Assign(mName);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::GetKeyPath(nsAString& aKeyPath)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
aKeyPath.Assign(mKeyPath);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::GetIndexNames(nsIDOMDOMStringList** aIndexNames)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
ObjectStoreInfo* info = GetObjectStoreInfo();
NS_ENSURE_TRUE(info, NS_ERROR_UNEXPECTED);
nsRefPtr<nsDOMStringList> list(new nsDOMStringList());
PRUint32 count = info->indexes.Length();
for (PRUint32 index = 0; index < count; index++) {
NS_ENSURE_TRUE(list->Add(info->indexes[index].name),
NS_ERROR_OUT_OF_MEMORY);
}
list.forget(aIndexNames);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::Get(nsIVariant* aKey,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->TransactionIsOpen()) {
return NS_ERROR_UNEXPECTED;
}
Key key;
nsresult rv = GetKeyFromVariant(aKey, key);
NS_ENSURE_SUCCESS(rv, rv);
if (key.IsUnset()) {
return NS_ERROR_ILLEGAL_VALUE;
}
nsRefPtr<IDBRequest> request = GenerateRequest();
NS_ENSURE_TRUE(request, NS_ERROR_FAILURE);
nsRefPtr<GetHelper> helper =
new GetHelper(mTransaction, request, mId, key, !!mAutoIncrement);
rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::GetAll(nsIIDBKeyRange* aKeyRange,
PRUint32 aLimit,
PRUint8 aOptionalArgCount,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->TransactionIsOpen()) {
return NS_ERROR_UNEXPECTED;
}
if (aOptionalArgCount < 2) {
aLimit = PR_UINT32_MAX;
}
Key leftKey, rightKey;
PRUint16 keyRangeFlags = 0;
nsresult rv;
if (aKeyRange) {
rv = aKeyRange->GetFlags(&keyRangeFlags);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIVariant> variant;
rv = aKeyRange->GetLeft(getter_AddRefs(variant));
NS_ENSURE_SUCCESS(rv, rv);
rv = GetKeyFromVariant(variant, leftKey);
NS_ENSURE_SUCCESS(rv, rv);
rv = aKeyRange->GetRight(getter_AddRefs(variant));
NS_ENSURE_SUCCESS(rv, rv);
rv = GetKeyFromVariant(variant, rightKey);
NS_ENSURE_SUCCESS(rv, rv);
}
nsRefPtr<IDBRequest> request = GenerateRequest();
NS_ENSURE_TRUE(request, NS_ERROR_FAILURE);
nsRefPtr<GetAllHelper> helper =
new GetAllHelper(mTransaction, request, mId, leftKey, rightKey,
keyRangeFlags, aLimit, mAutoIncrement);
rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::Add(const jsval &aValue,
const jsval &aKey,
JSContext* aCx,
PRUint8 aOptionalArgCount,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->TransactionIsOpen()) {
return NS_ERROR_UNEXPECTED;
}
if (mMode != nsIIDBTransaction::READ_WRITE) {
return NS_ERROR_OBJECT_IS_IMMUTABLE;
}
jsval keyval = (aOptionalArgCount >= 1) ? aKey : JSVAL_VOID;
nsString jsonValue;
Key key;
nsTArray<IndexUpdateInfo> updateInfo;
nsresult rv = GetAddInfo(aCx, aValue, keyval, jsonValue, key, updateInfo);
if (NS_FAILED(rv)) {
return rv;
}
if (key.IsUnset() && !mAutoIncrement) {
return NS_ERROR_ILLEGAL_VALUE;
}
nsRefPtr<IDBRequest> request = GenerateWriteRequest();
NS_ENSURE_TRUE(request, NS_ERROR_FAILURE);
nsRefPtr<AddHelper> helper =
new AddHelper(mTransaction, request, mId, mKeyPath, jsonValue, key,
!!mAutoIncrement, true, false, updateInfo);
rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::Modify(const jsval &aValue,
const jsval &aKey,
JSContext* aCx,
PRUint8 aOptionalArgCount,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->TransactionIsOpen()) {
return NS_ERROR_UNEXPECTED;
}
if (mMode != nsIIDBTransaction::READ_WRITE) {
return NS_ERROR_OBJECT_IS_IMMUTABLE;
}
jsval keyval = (aOptionalArgCount >= 1) ? aKey : JSVAL_VOID;
nsString jsonValue;
Key key;
nsTArray<IndexUpdateInfo> updateInfo;
nsresult rv = GetAddInfo(aCx, aValue, keyval, jsonValue, key, updateInfo);
if (NS_FAILED(rv)) {
return rv;
}
if (key.IsUnset() || key.IsNull()) {
return NS_ERROR_ILLEGAL_VALUE;
}
nsRefPtr<IDBRequest> request = GenerateWriteRequest();
NS_ENSURE_TRUE(request, NS_ERROR_FAILURE);
nsRefPtr<AddHelper> helper =
new AddHelper(mTransaction, request, mId, mKeyPath, jsonValue, key,
!!mAutoIncrement, false, true, updateInfo);
rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::AddOrModify(const jsval &aValue,
const jsval &aKey,
JSContext* aCx,
PRUint8 aOptionalArgCount,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->TransactionIsOpen()) {
return NS_ERROR_UNEXPECTED;
}
if (mMode != nsIIDBTransaction::READ_WRITE) {
return NS_ERROR_OBJECT_IS_IMMUTABLE;
}
jsval keyval = (aOptionalArgCount >= 1) ? aKey : JSVAL_VOID;
nsString jsonValue;
Key key;
nsTArray<IndexUpdateInfo> updateInfo;
nsresult rv = GetAddInfo(aCx, aValue, keyval, jsonValue, key, updateInfo);
if (NS_FAILED(rv)) {
return rv;
}
if (key.IsUnset() || key.IsNull()) {
return NS_ERROR_ILLEGAL_VALUE;
}
nsRefPtr<IDBRequest> request = GenerateWriteRequest();
NS_ENSURE_TRUE(request, NS_ERROR_FAILURE);
nsRefPtr<AddHelper> helper =
new AddHelper(mTransaction, request, mId, mKeyPath, jsonValue, key,
!!mAutoIncrement, true, true, updateInfo);
rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::Remove(nsIVariant* aKey,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->TransactionIsOpen()) {
return NS_ERROR_UNEXPECTED;
}
if (mMode != nsIIDBTransaction::READ_WRITE) {
return NS_ERROR_OBJECT_IS_IMMUTABLE;
}
Key key;
nsresult rv = GetKeyFromVariant(aKey, key);
if (NS_FAILED(rv)) {
return rv;
}
if (key.IsUnset() || key.IsNull()) {
return NS_ERROR_ILLEGAL_VALUE;
}
nsRefPtr<IDBRequest> request = GenerateWriteRequest();
NS_ENSURE_TRUE(request, NS_ERROR_FAILURE);
nsRefPtr<RemoveHelper> helper =
new RemoveHelper(mTransaction, request, mId, key, !!mAutoIncrement);
rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::OpenCursor(nsIIDBKeyRange* aKeyRange,
PRUint16 aDirection,
PRBool aPreload,
PRUint8 aOptionalArgCount,
nsIIDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->TransactionIsOpen()) {
return NS_ERROR_UNEXPECTED;
}
nsresult rv;
Key leftKey, rightKey;
PRUint16 keyRangeFlags = 0;
if (aKeyRange) {
rv = aKeyRange->GetFlags(&keyRangeFlags);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIVariant> variant;
rv = aKeyRange->GetLeft(getter_AddRefs(variant));
NS_ENSURE_SUCCESS(rv, rv);
rv = GetKeyFromVariant(variant, leftKey);
NS_ENSURE_SUCCESS(rv, rv);
rv = aKeyRange->GetRight(getter_AddRefs(variant));
NS_ENSURE_SUCCESS(rv, rv);
rv = GetKeyFromVariant(variant, rightKey);
NS_ENSURE_SUCCESS(rv, rv);
}
if (aOptionalArgCount >= 2) {
if (aDirection != nsIIDBCursor::NEXT &&
aDirection != nsIIDBCursor::NEXT_NO_DUPLICATE &&
aDirection != nsIIDBCursor::PREV &&
aDirection != nsIIDBCursor::PREV_NO_DUPLICATE) {
return NS_ERROR_INVALID_ARG;
}
}
else {
aDirection = nsIIDBCursor::NEXT;
}
if (aPreload) {
NS_NOTYETIMPLEMENTED("Implement me!");
return NS_ERROR_NOT_IMPLEMENTED;
}
nsRefPtr<IDBRequest> request = GenerateRequest();
NS_ENSURE_TRUE(request, NS_ERROR_FAILURE);
nsRefPtr<OpenCursorHelper> helper =
new OpenCursorHelper(mTransaction, request, this, leftKey, rightKey,
keyRangeFlags, aDirection, aPreload);
rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::CreateIndex(const nsAString& aName,
const nsAString& aKeyPath,
PRBool aUnique,
nsIIDBRequest** _retval)
{
NS_PRECONDITION(NS_IsMainThread(), "Wrong thread!");
if (aName.IsEmpty()) {
return NS_ERROR_INVALID_ARG;
}
ObjectStoreInfo* info = GetObjectStoreInfo();
NS_ENSURE_TRUE(info, NS_ERROR_UNEXPECTED);
bool found = false;
PRUint32 indexCount = info->indexes.Length();
for (PRUint32 index = 0; index < indexCount; index++) {
if (info->indexes[index].name == aName) {
found = true;
break;
}
}
if (found) {
return NS_ERROR_ALREADY_INITIALIZED;
}
if (aKeyPath.IsEmpty()) {
NS_NOTYETIMPLEMENTED("Implement me!");
return NS_ERROR_NOT_IMPLEMENTED;
}
if (!mTransaction->TransactionIsOpen()) {
return NS_ERROR_UNEXPECTED;
}
nsRefPtr<IDBRequest> request = GenerateWriteRequest();
NS_ENSURE_TRUE(request, NS_ERROR_FAILURE);
nsRefPtr<CreateIndexHelper> helper =
new CreateIndexHelper(mTransaction, request, aName, aKeyPath, !!aUnique,
mAutoIncrement, this);
nsresult rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::Index(const nsAString& aName,
nsIIDBIndex** _retval)
{
NS_PRECONDITION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->TransactionIsOpen()) {
return NS_ERROR_UNEXPECTED;
}
if (aName.IsEmpty()) {
return NS_ERROR_INVALID_ARG;
}
ObjectStoreInfo* info = GetObjectStoreInfo();
NS_ENSURE_TRUE(info, NS_ERROR_UNEXPECTED);
IndexInfo* indexInfo = nsnull;
PRUint32 indexCount = info->indexes.Length();
for (PRUint32 index = 0; index < indexCount; index++) {
if (info->indexes[index].name == aName) {
indexInfo = &(info->indexes[index]);
break;
}
}
if (!indexInfo) {
return NS_ERROR_NOT_AVAILABLE;
}
nsRefPtr<IDBIndex> request = IDBIndex::Create(this, indexInfo);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBObjectStore::RemoveIndex(const nsAString& aName,
nsIIDBRequest** _retval)
{
NS_PRECONDITION(NS_IsMainThread(), "Wrong thread!");
if (!mTransaction->TransactionIsOpen()) {
return NS_ERROR_UNEXPECTED;
}
if (aName.IsEmpty()) {
return NS_ERROR_INVALID_ARG;
}
ObjectStoreInfo* info = GetObjectStoreInfo();
NS_ENSURE_TRUE(info, NS_ERROR_UNEXPECTED);
bool found = false;
PRUint32 indexCount = info->indexes.Length();
for (PRUint32 index = 0; index < indexCount; index++) {
if (info->indexes[index].name == aName) {
found = true;
break;
}
}
if (!found) {
return NS_ERROR_NOT_AVAILABLE;
}
nsRefPtr<IDBRequest> request = GenerateWriteRequest();
nsRefPtr<RemoveIndexHelper> helper =
new RemoveIndexHelper(mTransaction, request, aName, this);
nsresult rv = helper->DispatchToTransactionPool();
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
PRUint16
AddHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
NS_PRECONDITION(aConnection, "Passed a null connection!");
nsresult rv;
if (mKey.IsNull()) {
NS_WARNING("Using a UUID for null keys, probably can do something faster!");
nsCOMPtr<nsIUUIDGenerator> uuidGen =
do_GetService("@mozilla.org/uuid-generator;1", &rv);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
nsID id;
rv = uuidGen->GenerateUUIDInPlace(&id);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
char idString[NSID_LENGTH] = { 0 };
id.ToProvidedString(idString);
mKey = NS_ConvertASCIItoUTF16(idString);
}
bool mayOverwrite = mOverwrite;
bool unsetKey = mKey.IsUnset();
if (unsetKey) {
NS_ASSERTION(mAutoIncrement, "Must have a key for non-autoIncrement!");
// Will need to add first and then set the key later.
mayOverwrite = false;
}
if (mAutoIncrement && !unsetKey) {
mayOverwrite = true;
}
Savepoint savepoint(mTransaction);
nsCOMPtr<mozIStorageStatement> stmt;
if (!mOverwrite && !unsetKey) {
// Make sure the key doesn't exist already
stmt = mTransaction->GetStatement(mAutoIncrement);
NS_ENSURE_TRUE(stmt, nsIIDBDatabaseException::UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), mOSID);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
NS_NAMED_LITERAL_CSTRING(id, "id");
if (mKey.IsInt()) {
rv = stmt->BindInt64ByName(id, mKey.IntValue());
}
else if (mKey.IsString()) {
rv = stmt->BindStringByName(id, mKey.StringValue());
}
else {
NS_NOTREACHED("Unknown key type!");
}
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
PRBool hasResult;
rv = stmt->ExecuteStep(&hasResult);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
if (hasResult) {
return nsIIDBDatabaseException::CONSTRAINT_ERR;
}
}
// Now we add it to the database (or update, depending on our variables).
stmt = mTransaction->AddStatement(mCreate, mayOverwrite, mAutoIncrement);
NS_ENSURE_TRUE(stmt, nsIIDBDatabaseException::UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
NS_NAMED_LITERAL_CSTRING(keyValue, "key_value");
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), mOSID);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
if (!mAutoIncrement || mayOverwrite) {
NS_ASSERTION(!mKey.IsUnset(), "This shouldn't happen!");
if (mKey.IsInt()) {
rv = stmt->BindInt64ByName(keyValue, mKey.IntValue());
}
else if (mKey.IsString()) {
rv = stmt->BindStringByName(keyValue, mKey.StringValue());
}
else {
NS_NOTREACHED("Unknown key type!");
}
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
}
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("data"), mValue);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
if (NS_FAILED(stmt->Execute())) {
return nsIIDBDatabaseException::CONSTRAINT_ERR;
}
// If we are supposed to generate a key, get the new id.
if (mAutoIncrement && mCreate && !mOverwrite) {
#ifdef DEBUG
PRInt64 oldKey = unsetKey ? 0 : mKey.IntValue();
#endif
rv = aConnection->GetLastInsertRowID(mKey.ToIntPtr());
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
#ifdef DEBUG
NS_ASSERTION(mKey.IsInt(), "Bad key value!");
if (!unsetKey) {
NS_ASSERTION(mKey.IntValue() == oldKey, "Something went haywire!");
}
#endif
if (!mKeyPath.IsEmpty() && unsetKey) {
// Special case where someone put an object into an autoIncrement'ing
// objectStore with no key in its keyPath set. We needed to figure out
// which row id we would get above before we could set that properly.
rv = ModifyValueForNewKey();
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
scoper.Abandon();
rv = stmt->Reset();
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
stmt = mTransaction->AddStatement(false, true, true);
NS_ENSURE_TRUE(stmt, nsIIDBDatabaseException::UNKNOWN_ERR);
mozStorageStatementScoper scoper2(stmt);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), mOSID);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
rv = stmt->BindInt64ByName(keyValue, mKey.IntValue());
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
rv = stmt->BindStringByName(NS_LITERAL_CSTRING("data"), mValue);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
}
}
// Update our indexes if needed.
if (!mIndexUpdateInfo.IsEmpty()) {
PRInt64 objectDataId = mAutoIncrement ? mKey.IntValue() : LL_MININT;
rv = IDBObjectStore::UpdateIndexes(mTransaction, mOSID, mKey,
mAutoIncrement, mOverwrite,
objectDataId, mIndexUpdateInfo);
if (rv == NS_ERROR_STORAGE_CONSTRAINT) {
return nsIIDBDatabaseException::CONSTRAINT_ERR;
}
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
}
rv = savepoint.Release();
return NS_SUCCEEDED(rv) ? OK : nsIIDBDatabaseException::UNKNOWN_ERR;
}
PRUint16
AddHelper::GetSuccessResult(nsIWritableVariant* aResult)
{
NS_ASSERTION(!mKey.IsUnset() && !mKey.IsNull(), "Badness!");
if (mKey.IsString()) {
aResult->SetAsAString(mKey.StringValue());
}
else if (mKey.IsInt()) {
aResult->SetAsInt64(mKey.IntValue());
}
else {
NS_NOTREACHED("Unknown key type!");
}
return OK;
}
nsresult
AddHelper::ModifyValueForNewKey()
{
NS_ASSERTION(mAutoIncrement && !mKeyPath.IsEmpty() && mKey.IsInt(),
"Don't call me!");
JSContext* cx;
nsresult rv = nsContentUtils::ThreadJSContextStack()->GetSafeJSContext(&cx);
NS_ENSURE_SUCCESS(rv, rv);
JSAutoRequest ar(cx);
js::AutoValueRooter clone(cx);
nsCOMPtr<nsIJSON> json(new nsJSON());
rv = json->DecodeToJSVal(mValue, cx, clone.jsval_addr());
NS_ENSURE_SUCCESS(rv, rv);
JSObject* obj = JSVAL_TO_OBJECT(clone.jsval_value());
JSBool ok;
js::AutoValueRooter key(cx);
const jschar* keyPathChars = reinterpret_cast<const jschar*>(mKeyPath.get());
const size_t keyPathLen = mKeyPath.Length();
#ifdef DEBUG
ok = JS_GetUCProperty(cx, obj, keyPathChars, keyPathLen, key.jsval_addr());
NS_ASSERTION(ok && JSVAL_IS_VOID(key.jsval_value()), "Already has a key prop!");
#endif
ok = JS_NewNumberValue(cx, mKey.IntValue(), key.jsval_addr());
NS_ENSURE_TRUE(ok, NS_ERROR_FAILURE);
ok = JS_DefineUCProperty(cx, obj, keyPathChars, keyPathLen, key.jsval_value(),
nsnull, nsnull, JSPROP_ENUMERATE);
NS_ENSURE_TRUE(ok, NS_ERROR_FAILURE);
rv = json->EncodeFromJSVal(clone.jsval_addr(), cx, mValue);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
PRUint16
GetHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
NS_PRECONDITION(aConnection, "Passed a null connection!");
nsCOMPtr<mozIStorageStatement> stmt =
mTransaction->GetStatement(mAutoIncrement);
NS_ENSURE_TRUE(stmt, nsIIDBDatabaseException::UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), mOSID);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
NS_ASSERTION(!mKey.IsUnset() && !mKey.IsNull(), "Must have a key here!");
NS_NAMED_LITERAL_CSTRING(id, "id");
if (mKey.IsInt()) {
rv = stmt->BindInt64ByName(id, mKey.IntValue());
}
else if (mKey.IsString()) {
rv = stmt->BindStringByName(id, mKey.StringValue());
}
else {
NS_NOTREACHED("Unknown key type!");
}
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
// Search for it!
PRBool hasResult;
rv = stmt->ExecuteStep(&hasResult);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
if (!hasResult) {
return nsIIDBDatabaseException::NOT_FOUND_ERR;
}
// Set the value based on results.
(void)stmt->GetString(0, mValue);
return OK;
}
PRUint16
GetHelper::OnSuccess(nsIDOMEventTarget* aTarget)
{
nsRefPtr<GetSuccessEvent> event(new GetSuccessEvent(mValue));
nsresult rv = event->Init(mRequest, mTransaction);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
PRBool dummy;
aTarget->DispatchEvent(static_cast<nsDOMEvent*>(event), &dummy);
return OK;
}
PRUint16
RemoveHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
NS_PRECONDITION(aConnection, "Passed a null connection!");
nsCOMPtr<mozIStorageStatement> stmt =
mTransaction->RemoveStatement(mAutoIncrement);
NS_ENSURE_TRUE(stmt, nsIIDBDatabaseException::UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), mOSID);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
NS_ASSERTION(!mKey.IsUnset() && !mKey.IsNull(), "Must have a key here!");
NS_NAMED_LITERAL_CSTRING(key_value, "key_value");
if (mKey.IsInt()) {
rv = stmt->BindInt64ByName(key_value, mKey.IntValue());
}
else if (mKey.IsString()) {
rv = stmt->BindStringByName(key_value, mKey.StringValue());
}
else {
NS_NOTREACHED("Unknown key type!");
}
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
// Search for it!
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
return OK;
}
PRUint16
RemoveHelper::OnSuccess(nsIDOMEventTarget* aTarget)
{
return AsyncConnectionHelper::OnSuccess(aTarget);
}
PRUint16
RemoveHelper::GetSuccessResult(nsIWritableVariant* aResult)
{
NS_ASSERTION(!mKey.IsUnset() && !mKey.IsNull(), "Badness!");
if (mKey.IsString()) {
aResult->SetAsAString(mKey.StringValue());
}
else if (mKey.IsInt()) {
aResult->SetAsInt64(mKey.IntValue());
}
else {
NS_NOTREACHED("Unknown key type!");
}
return OK;
}
PRUint16
OpenCursorHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
nsCString table;
nsCString keyColumn;
if (mObjectStore->IsAutoIncrement()) {
table.AssignLiteral("ai_object_data");
keyColumn.AssignLiteral("id");
}
else {
table.AssignLiteral("object_data");
keyColumn.AssignLiteral("key_value");
}
NS_NAMED_LITERAL_CSTRING(osid, "osid");
NS_NAMED_LITERAL_CSTRING(leftKeyName, "left_key");
NS_NAMED_LITERAL_CSTRING(rightKeyName, "right_key");
nsCAutoString keyRangeClause;
if (!mLeftKey.IsUnset()) {
keyRangeClause = NS_LITERAL_CSTRING(" AND ") + keyColumn;
if (mKeyRangeFlags & nsIIDBKeyRange::LEFT_OPEN) {
keyRangeClause.AppendLiteral(" > :");
}
else {
NS_ASSERTION(mKeyRangeFlags & nsIIDBKeyRange::LEFT_BOUND, "Bad flags!");
keyRangeClause.AppendLiteral(" >= :");
}
keyRangeClause.Append(leftKeyName);
}
if (!mRightKey.IsUnset()) {
keyRangeClause += NS_LITERAL_CSTRING(" AND ") + keyColumn;
if (mKeyRangeFlags & nsIIDBKeyRange::RIGHT_OPEN) {
keyRangeClause.AppendLiteral(" < :");
}
else {
NS_ASSERTION(mKeyRangeFlags & nsIIDBKeyRange::RIGHT_BOUND, "Bad flags!");
keyRangeClause.AppendLiteral(" <= :");
}
keyRangeClause.Append(rightKeyName);
}
nsCString directionClause;
switch (mDirection) {
case nsIIDBCursor::NEXT:
case nsIIDBCursor::NEXT_NO_DUPLICATE:
directionClause = NS_LITERAL_CSTRING(" DESC");
break;
case nsIIDBCursor::PREV:
case nsIIDBCursor::PREV_NO_DUPLICATE:
directionClause = NS_LITERAL_CSTRING(" ASC");
break;
default:
NS_NOTREACHED("Unknown direction type!");
}
nsCString query = NS_LITERAL_CSTRING("SELECT ") + keyColumn +
NS_LITERAL_CSTRING(", data FROM ") + table +
NS_LITERAL_CSTRING(" WHERE object_store_id = :") + osid +
keyRangeClause + NS_LITERAL_CSTRING(" ORDER BY ") +
keyColumn + directionClause;
if (!mData.SetCapacity(50)) {
NS_ERROR("Out of memory!");
return nsIIDBDatabaseException::UNKNOWN_ERR;
}
nsCOMPtr<mozIStorageStatement> stmt = mTransaction->GetCachedStatement(query);
NS_ENSURE_TRUE(stmt, nsIIDBDatabaseException::UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindInt64ByName(osid, mObjectStore->Id());
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
if (!mLeftKey.IsUnset()) {
if (mLeftKey.IsString()) {
rv = stmt->BindStringByName(leftKeyName, mLeftKey.StringValue());
}
else if (mLeftKey.IsInt()) {
rv = stmt->BindInt64ByName(leftKeyName, mLeftKey.IntValue());
}
else {
NS_NOTREACHED("Bad key!");
}
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
}
if (!mRightKey.IsUnset()) {
if (mRightKey.IsString()) {
rv = stmt->BindStringByName(rightKeyName, mRightKey.StringValue());
}
else if (mRightKey.IsInt()) {
rv = stmt->BindInt64ByName(rightKeyName, mRightKey.IntValue());
}
else {
NS_NOTREACHED("Bad key!");
}
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
}
NS_WARNING("Copying all results for cursor snapshot, do something smarter!");
PRBool hasResult;
while (NS_SUCCEEDED((rv = stmt->ExecuteStep(&hasResult))) && hasResult) {
if (mData.Capacity() == mData.Length()) {
if (!mData.SetCapacity(mData.Capacity() * 2)) {
NS_ERROR("Out of memory!");
return nsIIDBDatabaseException::UNKNOWN_ERR;
}
}
KeyValuePair* pair = mData.AppendElement();
NS_ASSERTION(pair, "Shouldn't fail if SetCapacity succeeded!");
PRInt32 keyType;
rv = stmt->GetTypeOfIndex(0, &keyType);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
NS_ASSERTION(keyType == mozIStorageStatement::VALUE_TYPE_INTEGER ||
keyType == mozIStorageStatement::VALUE_TYPE_TEXT,
"Bad key type!");
if (keyType == mozIStorageStatement::VALUE_TYPE_INTEGER) {
pair->key = stmt->AsInt64(0);
}
else if (keyType == mozIStorageStatement::VALUE_TYPE_TEXT) {
rv = stmt->GetString(0, pair->key.ToString());
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
}
else {
NS_NOTREACHED("Bad SQLite type!");
}
#ifdef DEBUG
{
PRInt32 valueType;
NS_ASSERTION(NS_SUCCEEDED(stmt->GetTypeOfIndex(1, &valueType)) &&
valueType == mozIStorageStatement::VALUE_TYPE_TEXT,
"Bad value type!");
}
#endif
rv = stmt->GetString(1, pair->value);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
}
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
return OK;
}
PRUint16
OpenCursorHelper::GetSuccessResult(nsIWritableVariant* aResult)
{
if (mData.IsEmpty()) {
aResult->SetAsEmpty();
return OK;
}
nsRefPtr<IDBCursor> cursor =
IDBCursor::Create(mRequest, mTransaction, mObjectStore, mDirection, mData);
NS_ENSURE_TRUE(cursor, nsIIDBDatabaseException::UNKNOWN_ERR);
aResult->SetAsISupports(static_cast<IDBRequest::Generator*>(cursor));
mObjectStore = nsnull;
return OK;
}
PRUint16
CreateIndexHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
Savepoint savepoint(mTransaction);
// Insert the data into the database.
nsCOMPtr<mozIStorageStatement> stmt =
mTransaction->GetCachedStatement(
"INSERT INTO object_store_index (name, key_path, unique_index, "
"object_store_id, object_store_autoincrement) "
"VALUES (:name, :key_path, :unique, :osid, :os_auto_increment)"
);
NS_ENSURE_TRUE(stmt, nsIIDBDatabaseException::UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult 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("unique"),
mUnique ? 1 : 0);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"), mObjectStore->Id());
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("os_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);
// Now we need to populate the index with data from the object store.
PRUint16 rc = InsertDataFromObjectStore(aConnection);
NS_ENSURE_TRUE(rc == OK, rc);
rv = savepoint.Release();
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
return OK;
}
PRUint16
CreateIndexHelper::InsertDataFromObjectStore(mozIStorageConnection* aConnection)
{
nsCAutoString table;
nsCAutoString columns;
if (mAutoIncrement) {
table.AssignLiteral("ai_object_data");
columns.AssignLiteral("id, data");
}
else {
table.AssignLiteral("object_data");
columns.AssignLiteral("id, data, key_value");
}
nsCString query = NS_LITERAL_CSTRING("SELECT ") + columns +
NS_LITERAL_CSTRING(" FROM ") + table +
NS_LITERAL_CSTRING(" WHERE object_store_id = :osid");
nsCOMPtr<mozIStorageStatement> stmt = mTransaction->GetCachedStatement(query);
NS_ENSURE_TRUE(stmt, nsIIDBDatabaseException::UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("osid"),
mObjectStore->Id());
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
PRBool hasResult;
while (NS_SUCCEEDED(stmt->ExecuteStep(&hasResult)) && hasResult) {
nsCOMPtr<mozIStorageStatement> insertStmt =
mTransaction->IndexUpdateStatement(mAutoIncrement, mUnique, false);
NS_ENSURE_TRUE(insertStmt, nsIIDBDatabaseException::UNKNOWN_ERR);
mozStorageStatementScoper scoper2(insertStmt);
rv = insertStmt->BindInt64ByName(NS_LITERAL_CSTRING("index_id"), mId);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
rv = insertStmt->BindInt64ByName(NS_LITERAL_CSTRING("object_data_id"),
stmt->AsInt64(0));
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
if (!mAutoIncrement) {
// XXX does this cause problems with the affinity?
nsString key;
rv = stmt->GetString(2, key);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
rv = insertStmt->BindStringByName(NS_LITERAL_CSTRING("object_data_key"),
key);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
}
nsString json;
rv = stmt->GetString(1, json);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
Key key;
JSContext* cx = nsnull;
rv = IDBObjectStore::GetKeyPathValueFromJSON(json, mKeyPath, &cx, key);
// XXX this should be a constraint error maybe?
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
NS_NAMED_LITERAL_CSTRING(value, "value");
if (key.IsUnset()) {
continue;
}
if (key.IsInt()) {
rv = insertStmt->BindInt64ByName(value, key.IntValue());
}
else if (key.IsString()) {
rv = insertStmt->BindStringByName(value, key.StringValue());
}
else {
return nsIIDBDatabaseException::CONSTRAINT_ERR;
}
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
rv = insertStmt->Execute();
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
}
return OK;
}
PRUint16
CreateIndexHelper::GetSuccessResult(nsIWritableVariant* aResult)
{
NS_PRECONDITION(NS_IsMainThread(), "Wrong thread!");
ObjectStoreInfo* info = mObjectStore->GetObjectStoreInfo();
if (!info) {
NS_ERROR("Couldn't get info!");
return nsIIDBDatabaseException::UNKNOWN_ERR;
}
#ifdef DEBUG
{
bool found = false;
PRUint32 indexCount = info->indexes.Length();
for (PRUint32 index = 0; index < indexCount; index++) {
if (info->indexes[index].name == mName) {
found = true;
break;
}
}
NS_ASSERTION(!found, "Alreayd have this index!");
}
#endif
IndexInfo* newInfo = info->indexes.AppendElement();
if (!newInfo) {
NS_ERROR("Couldn't add index name! Out of memory?");
return nsIIDBDatabaseException::UNKNOWN_ERR;
}
newInfo->id = mId;
newInfo->name = mName;
newInfo->keyPath = mKeyPath;
newInfo->unique = mUnique;
newInfo->autoIncrement = mAutoIncrement;
nsCOMPtr<nsIIDBIndex> result;
nsresult rv = mObjectStore->Index(mName, getter_AddRefs(result));
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
aResult->SetAsISupports(result);
return OK;
}
PRUint16
RemoveIndexHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
NS_PRECONDITION(!NS_IsMainThread(), "Wrong thread!");
nsCOMPtr<mozIStorageStatement> stmt =
mTransaction->GetCachedStatement(
"DELETE FROM object_store_index "
"WHERE name = :name "
);
NS_ENSURE_TRUE(stmt, nsIIDBDatabaseException::UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult 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
RemoveIndexHelper::GetSuccessResult(nsIWritableVariant* /* aResult */)
{
NS_PRECONDITION(NS_IsMainThread(), "Wrong thread!");
ObjectStoreInfo* info = mObjectStore->GetObjectStoreInfo();
if (!info) {
NS_ERROR("Unable to get object store info!");
return nsIIDBDatabaseException::UNKNOWN_ERR;
}
#ifdef DEBUG
{
bool found = false;
PRUint32 indexCount = info->indexes.Length();
for (PRUint32 index = 0; index < indexCount; index++) {
if (info->indexes[index].name == mName) {
found = true;
break;
}
}
NS_ASSERTION(found, "Didn't know about this one!");
}
#endif
PRUint32 indexCount = info->indexes.Length();
for (PRUint32 index = 0; index < indexCount; index++) {
if (info->indexes[index].name == mName) {
info->indexes.RemoveElementAt(index);
break;
}
}
return OK;
}
PRUint16
GetAllHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
{
nsCString table;
nsCString keyColumn;
if (mAutoIncrement) {
table.AssignLiteral("ai_object_data");
keyColumn.AssignLiteral("id");
}
else {
table.AssignLiteral("object_data");
keyColumn.AssignLiteral("key_value");
}
NS_NAMED_LITERAL_CSTRING(osid, "osid");
NS_NAMED_LITERAL_CSTRING(leftKeyName, "left_key");
NS_NAMED_LITERAL_CSTRING(rightKeyName, "right_key");
nsCAutoString keyRangeClause;
if (!mLeftKey.IsUnset()) {
keyRangeClause = NS_LITERAL_CSTRING(" AND ") + keyColumn;
if (mKeyRangeFlags & nsIIDBKeyRange::LEFT_OPEN) {
keyRangeClause.AppendLiteral(" > :");
}
else {
NS_ASSERTION(mKeyRangeFlags & nsIIDBKeyRange::LEFT_BOUND, "Bad flags!");
keyRangeClause.AppendLiteral(" >= :");
}
keyRangeClause.Append(leftKeyName);
}
if (!mRightKey.IsUnset()) {
keyRangeClause += NS_LITERAL_CSTRING(" AND ") + keyColumn;
if (mKeyRangeFlags & nsIIDBKeyRange::RIGHT_OPEN) {
keyRangeClause.AppendLiteral(" < :");
}
else {
NS_ASSERTION(mKeyRangeFlags & nsIIDBKeyRange::RIGHT_BOUND, "Bad flags!");
keyRangeClause.AppendLiteral(" <= :");
}
keyRangeClause.Append(rightKeyName);
}
nsCAutoString limitClause;
if (mLimit != PR_UINT32_MAX) {
limitClause.AssignLiteral(" LIMIT ");
limitClause.AppendInt(mLimit);
}
nsCString query = NS_LITERAL_CSTRING("SELECT data FROM ") + table +
NS_LITERAL_CSTRING(" WHERE object_store_id = :") + osid +
keyRangeClause + NS_LITERAL_CSTRING(" ORDER BY ") +
keyColumn + NS_LITERAL_CSTRING(" ASC") + limitClause;
if (!mValues.SetCapacity(50)) {
NS_ERROR("Out of memory!");
return nsIIDBDatabaseException::UNKNOWN_ERR;
}
nsCOMPtr<mozIStorageStatement> stmt = mTransaction->GetCachedStatement(query);
NS_ENSURE_TRUE(stmt, nsIIDBDatabaseException::UNKNOWN_ERR);
mozStorageStatementScoper scoper(stmt);
nsresult rv = stmt->BindInt64ByName(osid, mOSID);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
if (!mLeftKey.IsUnset()) {
if (mLeftKey.IsString()) {
rv = stmt->BindStringByName(leftKeyName, mLeftKey.StringValue());
}
else if (mLeftKey.IsInt()) {
rv = stmt->BindInt64ByName(leftKeyName, mLeftKey.IntValue());
}
else {
NS_NOTREACHED("Bad key!");
}
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
}
if (!mRightKey.IsUnset()) {
if (mRightKey.IsString()) {
rv = stmt->BindStringByName(rightKeyName, mRightKey.StringValue());
}
else if (mRightKey.IsInt()) {
rv = stmt->BindInt64ByName(rightKeyName, mRightKey.IntValue());
}
else {
NS_NOTREACHED("Bad key!");
}
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
}
PRBool hasResult;
while (NS_SUCCEEDED((rv = stmt->ExecuteStep(&hasResult))) && hasResult) {
if (mValues.Capacity() == mValues.Length()) {
if (!mValues.SetCapacity(mValues.Capacity() * 2)) {
NS_ERROR("Out of memory!");
return nsIIDBDatabaseException::UNKNOWN_ERR;
}
}
nsString* value = mValues.AppendElement();
NS_ASSERTION(value, "Shouldn't fail if SetCapacity succeeded!");
rv = stmt->GetString(0, *value);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
}
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
return OK;
}
PRUint16
GetAllHelper::OnSuccess(nsIDOMEventTarget* aTarget)
{
NS_ASSERTION(mValues.Length() <= mLimit, "Too many results!");
nsRefPtr<GetAllSuccessEvent> event(new GetAllSuccessEvent(mValues));
NS_ASSERTION(mValues.IsEmpty(), "Should have swapped!");
nsresult rv = event->Init(mRequest, mTransaction);
NS_ENSURE_SUCCESS(rv, nsIIDBDatabaseException::UNKNOWN_ERR);
PRBool dummy;
aTarget->DispatchEvent(static_cast<nsDOMEvent*>(event), &dummy);
return OK;
}
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