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-rw-r--r--src/sql/doc/snippets/code/src_sql_kernel_qsqldatabase.cpp73
1 files changed, 30 insertions, 43 deletions
diff --git a/src/sql/doc/snippets/code/src_sql_kernel_qsqldatabase.cpp b/src/sql/doc/snippets/code/src_sql_kernel_qsqldatabase.cpp
index f09315435e..c7ceb847da 100644
--- a/src/sql/doc/snippets/code/src_sql_kernel_qsqldatabase.cpp
+++ b/src/sql/doc/snippets/code/src_sql_kernel_qsqldatabase.cpp
@@ -47,18 +47,25 @@
** $QT_END_LICENSE$
**
****************************************************************************/
+#include <QSqlDatabase>
+#include <QSqlQuery>
+#include <QSqlDriver>
+#include <QDebug>
+void openDatabase()
+{
//! [0]
// WRONG
QSqlDatabase db = QSqlDatabase::database("sales");
QSqlQuery query("SELECT NAME, DOB FROM EMPLOYEES", db);
QSqlDatabase::removeDatabase("sales"); // will output a warning
-
// "db" is now a dangling invalid database connection,
// "query" contains an invalid result set
//! [0]
+}
-
+void removeDatabase()
+{
//! [1]
{
QSqlDatabase db = QSqlDatabase::database("sales");
@@ -67,72 +74,51 @@ QSqlDatabase::removeDatabase("sales"); // will output a warning
// Both "db" and "query" are destroyed because they are out of scope
QSqlDatabase::removeDatabase("sales"); // correct
//! [1]
+}
-
-//! [2]
-QSqlDatabase::registerSqlDriver("MYDRIVER",
- new QSqlDriverCreator<MyDatabaseDriver>);
-QSqlDatabase db = QSqlDatabase::addDatabase("MYDRIVER");
-//! [2]
-
-
+void setmyDatabase()
+{
//! [3]
-...
-db = QSqlDatabase::addDatabase("QODBC");
+// ...
+QSqlDatabase db = QSqlDatabase::addDatabase("QODBC");
db.setDatabaseName("DRIVER={Microsoft Access Driver (*.mdb, *.accdb)};FIL={MS Access};DBQ=myaccessfile.mdb");
if (db.open()) {
// success!
}
-...
+// ...
//! [3]
+}
-
-//! [4]
-...
+// ...
// MySQL connection
+void dbConnect()
+{
+QSqlDatabase db;
+//! [4]
db.setConnectOptions("SSL_KEY=client-key.pem;SSL_CERT=client-cert.pem;SSL_CA=ca-cert.pem;CLIENT_IGNORE_SPACE=1"); // use an SSL connection to the server
if (!db.open()) {
db.setConnectOptions(); // clears the connect option string
- ...
+ // ...
}
-...
+// ...
// PostgreSQL connection
db.setConnectOptions("requiressl=1"); // enable PostgreSQL SSL connections
if (!db.open()) {
db.setConnectOptions(); // clear options
- ...
+ // ...
}
-...
+// ...
// ODBC connection
db.setConnectOptions("SQL_ATTR_ACCESS_MODE=SQL_MODE_READ_ONLY;SQL_ATTR_TRACE=SQL_OPT_TRACE_ON"); // set ODBC options
if (!db.open()) {
db.setConnectOptions(); // don't try to set this option
- ...
+ // ...
+}
}
//! [4]
-
-//! [5]
-#include "qtdir/src/sql/drivers/psql/qsql_psql.cpp"
-//! [5]
-
-
-//! [6]
-PGconn *con = PQconnectdb("host=server user=bart password=simpson dbname=springfield");
-QPSQLDriver *drv = new QPSQLDriver(con);
-QSqlDatabase db = QSqlDatabase::addDatabase(drv); // becomes the new default connection
-QSqlQuery query;
-query.exec("SELECT NAME, ID FROM STAFF");
-...
-//! [6]
-
-
-//! [7]
-unix:LIBS += -lpq
-win32:LIBS += libpqdll.lib
-//! [7]
-
-
+void dbQdebug()
+{
//! [8]
QSqlDatabase db;
qDebug() << db.isValid(); // Returns false
@@ -143,3 +129,4 @@ qDebug() << db.isValid(); // Returns \c true if "sales" connection exists
QSqlDatabase::removeDatabase("sales");
qDebug() << db.isValid(); // Returns false
//! [8]
+}