-
Notifications
You must be signed in to change notification settings - Fork 0
/
databaseConnection.cpp
90 lines (69 loc) · 1.59 KB
/
databaseConnection.cpp
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
#include"databaseConnection.h"
DatabaseConnection::DatabaseConnection()
{
// instantiated = true;
}
bool DatabaseConnection::instantiate()
{
if(!instantiated)
_databaseConnection = new DatabaseConnection;
if(_databaseConnection)
return true;
else
return false;
}
void DatabaseConnection::setUserName(QString s)
{
instantiated = instantiate();
_databaseConnection->username = s;
}
void DatabaseConnection::setServer(QString s)
{
instantiated = instantiate();
_databaseConnection->server = s;
}
void DatabaseConnection::setDatabase(QString s)
{
instantiated = instantiate();
_databaseConnection->database = s;
}
void DatabaseConnection::setPassword(QString s)
{
instantiated = instantiate();
_databaseConnection->password = s;
}
bool DatabaseConnection::makeConnection()
{
if(connected)
return false;
instantiated = instantiate();
db=QSqlDatabase::addDatabase("QMYSQL3");
db->setDatabaseName(database);
db->setUserName(username);
db->setHostName(server);
db->setPassword(password);
if( !db->open() )
{
// QMessageBox::critical(0, "Database Connection Error", db->lastError().text() );
return false;
}
connected = true;
return true;
}
bool DatabaseConnection::connect()
{
instantiated = instantiate();
return _databaseConnection->makeConnection();
}
void DatabaseConnection::disconnect()
{
if(connected)
_databaseConnection->breakConnection();
}
void DatabaseConnection::breakConnection()
{
db->disconnect();
}
DatabaseConnection *DatabaseConnection::_databaseConnection = NULL;
bool DatabaseConnection::instantiated = false;
bool DatabaseConnection::connected = false;