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