| 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 public class MBDiscussionDependencyManager extends DependencyManager {
39
40 public void update(
41 long oldPrimaryKeyValue, Object[] oldColumnValues,
42 Object[] oldExtraColumnValues, long newPrimaryKeyValue,
43 Object[] newColumnValues, Object[] newExtraColumnValues)
44 throws Exception {
45
46 long threadId = 0;
47
48 for (int i = 0; i < columns.length; i++) {
49 if (columns[i][0].equals("threadId")) {
50 threadId = (Long)newColumnValues[i];
51 }
52 }
53
54 if ((threadId == 0) && (extraColumns != null)) {
55 for (int i = 0; i < extraColumns.length; i++) {
56 if (extraColumns[i][0].equals("threadId")) {
57 threadId = (Long)newExtraColumnValues[i];
58 }
59 }
60 }
61
62 if (isDuplicateThread(threadId)) {
63 deleteDuplicateData("MBMessage", "threadId", threadId);
64 deleteDuplicateData("MBMessageFlag", "threadId", threadId);
65 deleteDuplicateData("MBThread", "threadId", threadId);
66 }
67 }
68
69 protected boolean isDuplicateThread(long threadId) throws Exception {
70 Connection con = null;
71 PreparedStatement ps = null;
72 ResultSet rs = null;
73
74 try {
75 con = DataAccess.getConnection();
76
77 ps = con.prepareStatement(
78 "select count(*) from MBDiscussion where threadId = ?");
79
80 ps.setLong(1, threadId);
81
82 rs = ps.executeQuery();
83
84 while (rs.next()) {
85 long count = rs.getLong(1);
86
87 if (count > 0) {
88 return false;
89 }
90 }
91
92 return true;
93 }
94 finally {
95 DataAccess.cleanUp(con, ps, rs);
96 }
97 }
98
99 }