1/*
2 * Copyright (C) 2007, 2013 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 "SQLStatement.h"
30
31#if ENABLE(SQL_DATABASE)
32
33#include "AbstractDatabaseServer.h"
34#include "AbstractSQLStatementBackend.h"
35#include "Database.h"
36#include "DatabaseManager.h"
37#include "Logging.h"
38#include "SQLStatementCallback.h"
39#include "SQLStatementErrorCallback.h"
40#include "SQLTransaction.h"
41#include "SQLValue.h"
42#include "SQLiteDatabase.h"
43#include "SQLiteStatement.h"
44#include <wtf/text/CString.h>
45
46namespace WebCore {
47
48PassOwnPtr<SQLStatement> SQLStatement::create(Database* database,
49    PassRefPtr<SQLStatementCallback> callback, PassRefPtr<SQLStatementErrorCallback> errorCallback)
50{
51    return adoptPtr(new SQLStatement(database, callback, errorCallback));
52}
53
54SQLStatement::SQLStatement(Database* database, PassRefPtr<SQLStatementCallback> callback,
55    PassRefPtr<SQLStatementErrorCallback> errorCallback)
56    : m_statementCallbackWrapper(callback, database->scriptExecutionContext())
57    , m_statementErrorCallbackWrapper(errorCallback, database->scriptExecutionContext())
58{
59}
60
61void SQLStatement::setBackend(AbstractSQLStatementBackend* backend)
62{
63    m_backend = backend;
64}
65
66bool SQLStatement::hasCallback()
67{
68    return m_statementCallbackWrapper.hasCallback();
69}
70
71bool SQLStatement::hasErrorCallback()
72{
73    return m_statementErrorCallbackWrapper.hasCallback();
74}
75
76bool SQLStatement::performCallback(SQLTransaction* transaction)
77{
78    ASSERT(transaction);
79    ASSERT(m_backend);
80
81    bool callbackError = false;
82
83    RefPtr<SQLStatementCallback> callback = m_statementCallbackWrapper.unwrap();
84    RefPtr<SQLStatementErrorCallback> errorCallback = m_statementErrorCallbackWrapper.unwrap();
85    RefPtr<SQLError> error = m_backend->sqlError();
86
87    // Call the appropriate statement callback and track if it resulted in an error,
88    // because then we need to jump to the transaction error callback.
89    if (error) {
90        if (errorCallback)
91            callbackError = errorCallback->handleEvent(transaction, error.get());
92    } else if (callback) {
93        RefPtr<SQLResultSet> resultSet = m_backend->sqlResultSet();
94        callbackError = !callback->handleEvent(transaction, resultSet.get());
95    }
96
97    return callbackError;
98}
99
100} // namespace WebCore
101
102#endif // ENABLE(SQL_DATABASE)
103