1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
package com.juick.server;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
/**
*
* @author ugnich
*/
public class VotesQueries {
public static boolean voteMessage(Connection sql, int mid, int uid, int vote) {
boolean ret = false;
PreparedStatement stmt = null;
try {
stmt = sql.prepareStatement("INSERT INTO messages_votes(message_id,user_id,vote) VALUES (?,?,?)");
stmt.setInt(1, mid);
stmt.setInt(2, uid);
stmt.setInt(3, vote);
ret = stmt.executeUpdate() > 0;
} catch (SQLException e) {
System.err.println(e);
} finally {
Utils.finishSQL(null, stmt);
}
if (ret) {
try {
String query;
if (vote > 0) {
query = "UPDATE messages SET votes=votes+1 WHERE message_id=?";
} else {
query = "UPDATE messages SET votes=votes-1 WHERE message_id=?";
}
stmt = sql.prepareStatement(query);
stmt.setInt(1, mid);
stmt.executeUpdate();
} catch (SQLException e) {
System.err.println(e);
} finally {
Utils.finishSQL(null, stmt);
}
}
return ret;
}
public static int getMessageVotes(Connection sql, int mid) {
return SQLHelpers.getInt(sql, "SELECT votes FROM messages WHERE message_id=?", mid, 0);
}
public static boolean fillMessagesVotes(Connection sql, ArrayList<com.juick.Message> msgs, int vuid) {
boolean ret = false;
String mids = "";
final int midsSize = msgs.size();
for (int i = 0; i < midsSize; i++) {
if (i > 0) {
mids += ",";
}
mids += msgs.get(i).MID;
}
PreparedStatement stmt = null;
ResultSet rs = null;
try {
stmt = sql.prepareStatement("SELECT message_id,vote FROM messages_votes WHERE user_id=? AND message_id IN (" + mids + ")");
stmt.setInt(1, vuid);
rs = stmt.executeQuery();
rs.beforeFirst();
while (rs.next()) {
int mid = rs.getInt(1);
for (int i = 0; i < midsSize; i++) {
if (msgs.get(i).MID == mid) {
msgs.get(i).UserVote = rs.getInt(2);
ret = true;
}
}
}
} catch (SQLException e) {
System.err.println(e);
} finally {
Utils.finishSQL(rs, stmt);
}
return ret;
}
}
|
