mirror of
https://github.com/chris2511/xca.git
synced 2026-09-12 19:51:05 +05:00
d36e6eb0cb
The DbTransaction class automatically rolls back when the scope is left (destructor) and no commit happenned. Every transaction begin will increment the counter, each commit/rollback will decrement it. Only if all transactions finished with a commit, a final database commit will be performed.
60 lines
1.2 KiB
C++
60 lines
1.2 KiB
C++
/* vi: set sw=4 ts=4:
|
|
*
|
|
* Copyright (C) 2017 Christian Hohnstaedt.
|
|
*
|
|
* All rights reserved.
|
|
*/
|
|
|
|
#ifndef __SQL_H
|
|
#define __SQL_H
|
|
|
|
#include <QtSql>
|
|
|
|
#define SQL_PREPARE(q,cmd) do { \
|
|
(q).prepare(cmd); \
|
|
(q).location(__FILE__,__LINE__); \
|
|
} while (0)
|
|
|
|
class DbTransaction
|
|
{
|
|
private:
|
|
static int mutex;
|
|
static int error;
|
|
bool has_begun;
|
|
void debug(const char *func, const char *file, int line);
|
|
|
|
public:
|
|
DbTransaction();
|
|
~DbTransaction();
|
|
bool begin(const char *file, int line);
|
|
bool commit(const char *file, int line);
|
|
bool rollback(const char *file, int line);
|
|
bool done(QSqlError e, const char *file, int line);
|
|
};
|
|
|
|
#define Transaction DbTransaction __trans
|
|
#define TransBegin() __trans.begin(__FILE__, __LINE__)
|
|
#define TransCommit() __trans.commit(__FILE__, __LINE__)
|
|
#define TransRollback() __trans.rollback(__FILE__, __LINE__)
|
|
#define TransDone(e) __trans.done(e, __FILE__, __LINE__);
|
|
|
|
class XSqlQuery: public QSqlQuery
|
|
{
|
|
private:
|
|
QString lastq;
|
|
const char *file;
|
|
int line;
|
|
public:
|
|
XSqlQuery();
|
|
XSqlQuery(QString q);
|
|
|
|
QString query_details();
|
|
QSqlError lastError();
|
|
bool exec(QString q);
|
|
bool exec();
|
|
bool prepare(QString q);
|
|
void location(const char *f, int l);
|
|
};
|
|
|
|
#endif
|