| MBDiscussionDependencyManager.java |
1 /**
2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portal.upgrade.v5_1_5.util;
24
25 import com.liferay.portal.kernel.dao.jdbc.DataAccess;
26
27 import java.sql.Connection;
28 import java.sql.PreparedStatement;
29 import java.sql.ResultSet;
30
31 /**
32 * <a href="MBDiscussionDependencyManager.java.html"><b><i>View Source</i></b>
33 * </a>
34 *
35 * @author Brian Wing Shun Chan
36 * @author Amos Fong
37 *
38 */
39 public class MBDiscussionDependencyManager extends DependencyManager {
40
41 public void update(
42 long oldPrimaryKeyValue, Object[] oldColumnValues,
43 Object[] oldExtraColumnValues, long newPrimaryKeyValue,
44 Object[] newColumnValues, Object[] newExtraColumnValues)
45 throws Exception {
46
47 long threadId = 0;
48
49 for (int i = 0; i < columns.length; i++) {
50 if (columns[i][0].equals("threadId")) {
51 threadId = (Long)newColumnValues[i];
52 }
53 }
54
55 if ((threadId == 0) && (extraColumns != null)) {
56 for (int i = 0; i < extraColumns.length; i++) {
57 if (extraColumns[i][0].equals("threadId")) {
58 threadId = (Long)newExtraColumnValues[i];
59 }
60 }
61 }
62
63 if (isDuplicateThread(threadId)) {
64 deleteDuplicateData("MBMessage", "threadId", threadId);
65 deleteDuplicateData("MBMessageFlag", "threadId", threadId);
66 deleteDuplicateData("MBThread", "threadId", threadId);
67 }
68 }
69
70 protected boolean isDuplicateThread(long threadId) throws Exception {
71 Connection con = null;
72 PreparedStatement ps = null;
73 ResultSet rs = null;
74
75 try {
76 con = DataAccess.getConnection();
77
78 ps = con.prepareStatement(
79 "select count(*) from MBDiscussion where threadId = ?");
80
81 ps.setLong(1, threadId);
82
83 rs = ps.executeQuery();
84
85 while (rs.next()) {
86 long count = rs.getLong(1);
87
88 if (count > 0) {
89 return false;
90 }
91 }
92
93 return true;
94 }
95 finally {
96 DataAccess.cleanUp(con, ps, rs);
97 }
98 }
99
100 }