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Diffstat (limited to 'sources/pyside6/doc/tutorials/qmlsqlintegration/sqlDialog.py')
-rw-r--r-- | sources/pyside6/doc/tutorials/qmlsqlintegration/sqlDialog.py | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/sources/pyside6/doc/tutorials/qmlsqlintegration/sqlDialog.py b/sources/pyside6/doc/tutorials/qmlsqlintegration/sqlDialog.py new file mode 100644 index 000000000..a9745051b --- /dev/null +++ b/sources/pyside6/doc/tutorials/qmlsqlintegration/sqlDialog.py @@ -0,0 +1,146 @@ +############################################################################# +## +## Copyright (C) 2019 The Qt Company Ltd. +## Contact: https://www.qt.io/licensing/ +## +## This file is part of the Qt for Python project. +## +## $QT_BEGIN_LICENSE:LGPL$ +## 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. +## +## GNU Lesser General Public License Usage +## Alternatively, this file may be used under the terms of the GNU Lesser +## General Public License version 3 as published by the Free Software +## Foundation and appearing in the file LICENSE.LGPL3 included in the +## packaging of this file. Please review the following information to +## ensure the GNU Lesser General Public License version 3 requirements +## will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +## +## GNU General Public License Usage +## Alternatively, this file may be used under the terms of the GNU +## General Public License version 2.0 or (at your option) the GNU General +## Public license version 3 or any later version approved by the KDE Free +## Qt Foundation. The licenses are as published by the Free Software +## Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +## included in the packaging of this file. Please review the following +## information to ensure the GNU General Public License requirements will +## be met: https://www.gnu.org/licenses/gpl-2.0.html and +## https://www.gnu.org/licenses/gpl-3.0.html. +## +## $QT_END_LICENSE$ +## +############################################################################# + +import datetime +import logging + +from PySide6.QtCore import Qt, Slot +from PySide6.QtSql import QSqlDatabase, QSqlQuery, QSqlRecord, QSqlTableModel + +table_name = "Conversations" + + +def createTable(): + if table_name in QSqlDatabase.database().tables(): + return + + query = QSqlQuery() + if not query.exec_( + """ + CREATE TABLE IF NOT EXISTS 'Conversations' ( + 'author' TEXT NOT NULL, + 'recipient' TEXT NOT NULL, + 'timestamp' TEXT NOT NULL, + 'message' TEXT NOT NULL, + FOREIGN KEY('author') REFERENCES Contacts ( name ), + FOREIGN KEY('recipient') REFERENCES Contacts ( name ) + ) + """ + ): + logging.error("Failed to query database") + + # This adds the first message from the Bot + # and further development is required to make it interactive. + query.exec_( + """ + INSERT INTO Conversations VALUES( + 'machine', 'Me', '2019-01-07T14:36:06', 'Hello!' + ) + """ + ) + logging.info(query) + + +class SqlConversationModel(QSqlTableModel): + def __init__(self, parent=None): + super(SqlConversationModel, self).__init__(parent) + + createTable() + self.setTable(table_name) + self.setSort(2, Qt.DescendingOrder) + self.setEditStrategy(QSqlTableModel.OnManualSubmit) + self.recipient = "" + + self.select() + logging.debug("Table was loaded successfully.") + + def setRecipient(self, recipient): + if recipient == self.recipient: + pass + + self.recipient = recipient + + filter_str = ( + "(recipient = '{}' AND author = 'Me') OR " "(recipient = 'Me' AND author='{}')" + ).format(self.recipient) + self.setFilter(filter_str) + self.select() + + def data(self, index, role): + if role < Qt.UserRole: + return QSqlTableModel.data(self, index, role) + + sql_record = QSqlRecord() + sql_record = self.record(index.row()) + + return sql_record.value(role - Qt.UserRole) + + def roleNames(self): + """Converts dict to hash because that's the result expected + by QSqlTableModel""" + names = {} + author = "author".encode() + recipient = "recipient".encode() + timestamp = "timestamp".encode() + message = "message".encode() + + names[hash(Qt.UserRole)] = author + names[hash(Qt.UserRole + 1)] = recipient + names[hash(Qt.UserRole + 2)] = timestamp + names[hash(Qt.UserRole + 3)] = message + + return names + + def send_message(self, recipient, message, author): + timestamp = datetime.datetime.now() + + new_record = self.record() + new_record.setValue("author", author) + new_record.setValue("recipient", recipient) + new_record.setValue("timestamp", str(timestamp)) + new_record.setValue("message", message) + + logging.debug('Message: "{}" \n Received by: "{}"'.format(message, recipient)) + + if not self.insertRecord(self.rowCount(), new_record): + logging.error("Failed to send message: {}".format(self.lastError().text())) + return + + self.submitAll() + self.select() |