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| Редакция 44 | Редакция 45 | ||
|---|---|---|---|
| 1 | #include "mysql.h"
|
1 | #include "mysql.h"
|
| 2 | 2 | ||
| 3 | MySql::MySql(QObject *parent) : |
3 | MySql::MySql(QObject *parent) : |
| 4 | QObject(parent) |
4 | QObject(parent) |
| 5 | {
|
5 | {
|
| 6 | }
|
6 | }
|
| 7 | 7 | ||
| 8 | 8 | ||
| 9 | 9 | ||
| 10 | /************************************************
|
10 | /************************************************
|
| 11 | ** Ôóíêöèÿ ïðèñâîåíèÿ çíà÷åíèÿ èìåíè áàçû äàííûõ
|
11 | ** Ôóíêöèÿ ïðèñâîåíèÿ çíà÷åíèÿ èìåíè áàçû äàííûõ
|
| 12 | **
|
12 | **
|
| 13 | ************************************************/
|
13 | ************************************************/
|
| 14 | 14 | ||
| 15 | 15 | ||
| 16 | 16 | ||
| 17 | void MySql::setDatabaseName(QString name){ |
17 | void MySql::setDatabaseName(QString name){ |
| 18 | MySql::sqlDatabaseName = name; |
18 | MySql::sqlDatabaseName = name; |
| 19 | }
|
19 | }
|
| 20 | 20 | ||
| 21 | 21 | ||
| 22 | bool MySql::connect(){ |
22 | bool MySql::connect(){ |
| 23 | db = QSqlDatabase::addDatabase("QMYSQL"); |
23 | db = QSqlDatabase::addDatabase("QMYSQL"); |
| 24 | 24 | ||
| 25 | db.setHostName(MySql::sqlHostName); |
25 | db.setHostName(MySql::sqlHostName); |
| 26 | db.setDatabaseName(MySql::sqlDatabaseName); |
26 | db.setDatabaseName(MySql::sqlDatabaseName); |
| 27 | db.setUserName(MySql::sqlUserName); |
27 | db.setUserName(MySql::sqlUserName); |
| 28 | db.setPassword(MySql::sqlPassword); |
28 | db.setPassword(MySql::sqlPassword); |
| 29 | bool ok = db.open(); |
29 | bool ok = db.open(); |
| 30 | if (ok) return true; |
30 | if (ok) return true; |
| 31 | else { |
31 | else { |
| 32 | MySql::mysqlLastError = db.lastError().text(); |
32 | MySql::mysqlLastError = db.lastError().text(); |
| 33 | return false; } |
33 | return false; } |
| 34 | 34 | ||
| 35 | /*
|
35 | /*
|
| 36 | pdb->setHostName(hostName);
|
36 | pdb->setHostName(hostName);
|
| 37 | pdb->setDatabaseName(baseName);
|
37 | pdb->setDatabaseName(baseName);
|
| 38 | pdb->setUserName(userName);
|
38 | pdb->setUserName(userName);
|
| 39 | pdb->setPassword(password);
|
39 | pdb->setPassword(password);
|
| 40 | bool ok = pdb->open();
|
40 | bool ok = pdb->open();
|
| 41 | 41 | ||
| 42 | if (!ok) {
|
42 | if (!ok) {
|
| 43 | QMessageBox::critical( // Äèàëîã ñ ñîîáùåíèåì îá îøèáêå.
|
43 | QMessageBox::critical( // Äèàëîã ñ ñîîáùåíèåì îá îøèáêå.
|
| 44 | QWidget(this->parent()), // Ðîäèòåëüñêèé âèäæåò.
|
44 | QWidget(this->parent()), // Ðîäèòåëüñêèé âèäæåò.
|
| 45 | QObject::tr("Database Error"), // Çàãîëîâîê.
|
45 | QObject::tr("Database Error"), // Çàãîëîâîê.
|
| 46 | db.lastError().text()); // Òåêñò ñîîáùåíèÿ.
|
46 | db.lastError().text()); // Òåêñò ñîîáùåíèÿ.
|
| 47 | }
|
47 | }
|
| 48 | */
|
48 | */
|
| 49 | 49 | ||
| 50 | return true; |
50 | return true; |
| 51 | }
|
51 | }
|
| 52 | 52 | ||
| 53 | 53 | ||
| 54 | void MySql::setUserName(QString uname){ |
54 | void MySql::setUserName(QString uname){ |
| 55 | MySql::sqlUserName = uname; |
55 | MySql::sqlUserName = uname; |
| 56 | }
|
56 | }
|
| 57 | 57 | ||
| 58 | void MySql::setPassword(QString passwrd){ |
58 | void MySql::setPassword(QString passwrd){ |
| 59 | MySql::sqlPassword = passwrd; |
59 | MySql::sqlPassword = passwrd; |
| 60 | }
|
60 | }
|
| 61 | 61 | ||
| 62 | 62 | ||
| 63 | void MySql::setHostName(QString hname){ |
63 | void MySql::setHostName(QString hname){ |
| 64 | MySql::sqlHostName = hname; |
64 | MySql::sqlHostName = hname; |
| 65 | }
|
65 | }
|
| 66 | 66 | ||
| 67 | bool MySql::createTable(SqlTable* table){ // ñîçäàåò â áàçå äàííûõ òàáëèöó |
67 | bool MySql::createTable(SqlTable* table){ // ñîçäàåò â áàçå äàííûõ òàáëèöó |
| 68 | QSqlQuery q;
|
68 | QSqlQuery q;
|
| 69 | bool ok; |
69 | bool ok; |
| 70 | ok = q.prepare(table->sqlString()); |
70 | ok = q.prepare(table->sqlString()); |
| 71 | if(!ok) { |
71 | if(!ok) { |
| 72 | MySql::mysqlLastError = q.lastError().text(); |
72 | MySql::mysqlLastError = q.lastError().text(); |
| 73 | return false;} |
73 | return false;} |
| 74 | ok = q.exec(); |
74 | ok = q.exec(); |
| 75 | if(!ok) { |
75 | if(!ok) { |
| 76 | MySql::mysqlLastError = q.lastError().text(); |
76 | MySql::mysqlLastError = q.lastError().text(); |
| 77 | return false;} |
77 | return false;} |
| 78 | else return true; |
78 | else return true; |
| 79 | }
|
79 | }
|
| 80 | 80 | ||
| 81 | 81 | ||
| 82 | 82 | ||
| 83 | QString MySql::lasError(){ |
83 | QString MySql::lasError(){ |
| 84 | 84 | ||
| 85 | return MySql::mysqlLastError; |
85 | return MySql::mysqlLastError; |
| 86 | }
|
86 | }
|
| 87 | 87 | ||
| 88 | 88 | ||
| - | 89 | ||
| - | 90 | /************************************************
|
|
| - | 91 | ** Ôóíêöèÿ ñîçäàåò íåîáõîäèìûå òàáëèöû â áàçå äàííûõ
|
|
| - | 92 | ** äëÿ õðàíåíèÿ íàçâàíèÿ è îïèñàíèÿ êëàññîâ
|
|
| - | 93 | ** (Òàáëèöà ListOfClasses è Òàáëèöà DescriptionOfClasses)
|
|
| - | 94 | ************************************************/
|
|
| - | 95 | ||
| - | 96 | ||
| - | 97 | bool MySql::createDataBase(){ |
|
| - | 98 | SqlTable* tbl; |
|
| - | 99 | TableField* fld; |
|
| - | 100 | if (!db.isOpen()){ |
|
| - | 101 | MySql::mysqlLastError = tr("Database is not open!"); |
|
| - | 102 | return false; |
|
| - | 103 | }
|
|
| - | 104 | tbl = new SqlTable(tr("ListOfClasses")); // ñîçäàäèì òàáëèöó ñ èìåíåì ListOfClasses äëÿ õðàíåíèÿ ñïèñêà êëàññîâ |
|
| - | 105 | fld = new TableField(tr("ClassName"), tbl); // ýòî âòîðîå ïîëå òàáëèöû áóäåò õðàíèòü èìåíà êëàññîâ, ïåðâîå ïîëå ID óæå èìååòñÿ â íîâîé òàáëèöå (îíî ñîçäàåòñÿ ïî óìîë÷àíèþ) |
|
| - | 106 | fld->setNotNull(true); // ïîëå íå ìîæåò áûòü ïóñòûì |
|
| - | 107 | fld->setType(tr("CHAR(30)")); // òèï ïîëÿ - ñòðîêà èç 30 ñèìâîëîâ |
|
| - | 108 | fld->setDefaultValue(tr("New class")); // çíà÷åíèå ïîëÿ ïî óìîë÷àíèþ |
|
| - | 109 | tbl->append(fld); // äîáàâëÿåì ïîëå â òàáëèöó |
|
| - | 110 | ||
| - | 111 | fld = new TableField(tr("ClassAlias"), tbl); // ýòî òðåòüå ïîëå òàáëèöû áóäåò õðàíèòü ïñåâäîíèìû êëàññîâ |
|
| - | 112 | fld->setNotNull(true); // ïîëå íå ìîæåò áûòü ïóñòûì |
|
| - | 113 | fld->setType(tr("CHAR(30)")); // òèï ïîëÿ - ñòðîêà èç 30 ñèìâîëîâ |
|
| - | 114 | fld->setDefaultValue(tr("New class alias")); // çíà÷åíèå ïîëÿ ïî óìîë÷àíèþ |
|
| - | 115 | tbl->append(fld); // äîáàâëÿåì ïîëå â òàáëèöó |
|
| - | 116 | ||
| - | 117 | fld = new TableField(tr("TableWhithInstance"), tbl); // ýòî òðåòüå ïîëå òàáëèöû áóäåò õðàíèòü ïñåâäîíèìû êëàññîâ |
|
| - | 118 | fld->setNotNull(true); // ïîëå íå ìîæåò áûòü ïóñòûì |
|
| - | 119 | fld->setType(tr("CHAR(30)")); // òèï ïîëÿ - ñòðîêà èç 30 ñèìâîëîâ |
|
| - | 120 | fld->setDefaultValue(tr("New class instance")); // çíà÷åíèå ïîëÿ ïî óìîë÷àíèþ |
|
| - | 121 | tbl->append(fld); // äîáàâëÿåì ïîëå â òàáëèöó |
|
| - | 122 | ||
| - | 123 | fld = new TableField(tr("Comment"), tbl); // ýòî òðåòüå ïîëå òàáëèöû áóäåò õðàíèòü ïñåâäîíèìû êëàññîâ |
|
| - | 124 | fld->setNotNull(true); // ïîëå íå ìîæåò áûòü ïóñòûì |
|
| - | 125 | fld->setType(tr("CHAR(30)")); // òèï ïîëÿ - ñòðîêà èç 30 ñèìâîëîâ |
|
| - | 126 | fld->setDefaultValue(tr("without comments")); // çíà÷åíèå ïîëÿ ïî óìîë÷àíèþ |
|
| - | 127 | tbl->append(fld); // äîáàâëÿåì ïîëå â òàáëèöó |
|
| - | 128 | ||
| - | 129 | ||
| - | 130 | if(!MySql::createTable(tbl)){ // åñëè íå óäàåòñÿ ñîçäàòü òàáëèöó |
|
| - | 131 | ||
| - | 132 | // delete fld;
|
|
| - | 133 | delete tbl; // ÷èñòèì çà ñîáîé |
|
| - | 134 | return false; // âûâîäèì îøèáêó |
|
| - | 135 | }
|
|
| - | 136 | ||
| - | 137 | ||
| - | 138 | else { // òàáëèöó óñïåøíî ñîçäàíà |
|
| - | 139 | // delete fld;
|
|
| - | 140 | delete tbl; // ÷èñòèì çà ñîáîé |
|
| - | 141 | return true; // ñîîáùàåì îá óñïåõå |
|
| - | 142 | ||
| - | 143 | }
|
|
| - | 144 | ||
| - | 145 | ||
| - | 146 | }
|
|
| 89 | 147 | ||