diff options
Diffstat (limited to 'sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_sql_kernel_qsqldatabase.cpp')
| -rw-r--r-- | sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_sql_kernel_qsqldatabase.cpp | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_sql_kernel_qsqldatabase.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_sql_kernel_qsqldatabase.cpp deleted file mode 100644 index 6bf0e003b..000000000 --- a/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_sql_kernel_qsqldatabase.cpp +++ /dev/null @@ -1,146 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the documentation of Qt for Python. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -//! [0] -# WRONG -db = QSqlDatabase.database("sales") -query = QSqlQuery("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] - - -//! [1] -db = QSqlDatabase.database("sales") -query = QSqlQuery("SELECT NAME, DOB FROM EMPLOYEES", db) -# Both "db" and "query" are destroyed because they are out of scope -QSqlDatabase.removeDatabase("sales") # correct -//! [1] - - -//! [2] -class MyDatabaseDriverCreatorBase(QtSql.QSqlDriverCreatorBase): - ... - def createObject(self): - return MyDatabaseDriver() - -mydriver = MyDatabaseDriverCreatorBase() -QtSql.QSqlDatabase.registerSqlDriver("MYDRIVER", mydriver) -db = QtSql.QSqlDatabase.addDatabase("MYDRIVER") -//! [2] - - -//! [3] -... -db = QSqlDatabase.addDatabase("QODBC") -db.setDatabaseName("DRIVER={Microsoft Access Driver (*.mdb)};FIL={MS Access};DBQ=myaccessfile.mdb") -if db.open(): - # success! - pass -... -//! [3] - - -//! [4] -... -# MySQL connection -db.setConnectOptions("CLIENT_SSL=1;CLIENT_IGNORE_SPACE=1") # use an SSL connection to the server -if not db.open(): - db.setConnectOptions() # clears the connect option string - ... -... -# PostgreSQL connection -db.setConnectOptions("requiressl=1") # enable PostgreSQL SSL connections -if not db.open(): - db.setConnectOptions() # clear options - ... -... -# ODBC connection -# set ODBC options -db.setConnectOptions("SQL_ATTR_ACCESS_MODE=SQL_MODE_READ_ONLY;SQL_ATTR_TRACE=SQL_OPT_TRACE_ON") -if not db.open(): - db.setConnectOptions() # don't try to set this option - ... -//! [4] - - -//! [5] -#include "qtdir/src/sql/drivers/psql/qsql_psql.cpp" -//! [5] - - -//! [6] -con = PQconnectdb("host=server user=bart password=simpson dbname=springfield") -drv = QPSQLDriver(con) -db = QSqlDatabase.addDatabase(drv) # becomes the new default connection -query = QSqlQuery() -query.exec_("SELECT NAME, ID FROM STAFF") -... -//! [6] - - -//! [7] -unix:LIBS += -lpq -win32:LIBS += libpqdll.lib -//! [7] - - -//! [8] -db = QSqlDatabase() -print(db.isValid()) # Returns False - -db = QSqlDatabase.database("sales") -print(db.isValid()) # Returns True if "sales" connection exists - -QSqlDatabase.removeDatabase("sales") -print(db.isValid()) # Returns False -//! [8] |