1 /* 2 * Copyright (C) 2007 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 #include "config.h" 29 #include "ChangeVersionWrapper.h" 30 31 #if ENABLE(DATABASE) 32 #include "Database.h" 33 #include "SQLError.h" 34 #include <wtf/PassRefPtr.h> 35 #include <wtf/RefPtr.h> 36 37 namespace WebCore { 38 39 ChangeVersionWrapper::ChangeVersionWrapper(const String& oldVersion, const String& newVersion) 40 : m_oldVersion(oldVersion.crossThreadString()) 41 , m_newVersion(newVersion.crossThreadString()) 42 { 43 } 44 45 bool ChangeVersionWrapper::performPreflight(SQLTransaction* transaction) 46 { 47 ASSERT(transaction && transaction->database()); 48 49 String actualVersion; 50 51 if (!transaction->database()->getVersionFromDatabase(actualVersion)) { 52 LOG_ERROR("Unable to retrieve actual current version from database"); 53 m_sqlError = SQLError::create(SQLError::UNKNOWN_ERR, "unable to verify current version of database"); 54 return false; 55 } 56 57 if (actualVersion != m_oldVersion) { 58 LOG_ERROR("Old version doesn't match actual version"); 59 m_sqlError = SQLError::create(SQLError::VERSION_ERR, "current version of the database and `oldVersion` argument do not match"); 60 return false; 61 } 62 63 return true; 64 } 65 66 bool ChangeVersionWrapper::performPostflight(SQLTransaction* transaction) 67 { 68 ASSERT(transaction && transaction->database()); 69 70 if (!transaction->database()->setVersionInDatabase(m_newVersion)) { 71 LOG_ERROR("Unable to set new version in database"); 72 m_sqlError = SQLError::create(SQLError::UNKNOWN_ERR, "unable to set new version in database"); 73 return false; 74 } 75 76 transaction->database()->setExpectedVersion(m_newVersion); 77 78 return true; 79 } 80 81 } // namespace WebCore 82 83 #endif // ENABLE(DATABASE) 84
