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import os
import mariadb
from PySide6.QtGui import *
from PySide6.QtWidgets import *
from PySide6.QtCore import *
from PySide6.QtCore import Qt
from split_view_layout import *
from dataclasses import dataclass
@dataclass
class DBMember():
id: int = 0
first_name: str = ""
middle_name: str = ""
last_name: str = ""
photo: bytes = b""
class DriverModel(QAbstractTableModel):
cursor: mariadb.Cursor
_header = ["first name", "middle name", "last name"]
_data: [DBMember] = []
def update(self):
self.beginResetModel()
self.cursor.execute("select `ID`, `firstName`, `middleName`, `lastName` from `member`")
self._data = list()
for result in self.cursor.fetchall():
self._data.append(DBMember(*result))
self.endResetModel()
def __init__(self, cursor):
super().__init__()
self.cursor = cursor
self.update()
def rowCount(self, index=0):
return len(self._data)
def columnCount(self, index=0):
return len(self._header)
def headerData(self, section, orientation, role):
if role == Qt.DisplayRole:
if orientation == Qt.Horizontal:
return self._header[section]
else:
return self._data[section].id
def data(self, index, role):
if role == Qt.DisplayRole:
driver = self._data[index.row()]
return (
driver.first_name,
driver.middle_name,
driver.last_name,
)[index.column()]
class DriverBrowser(QTableView):
model_table: DriverModel
model_proxy: QSortFilterProxyModel
parent_update_fn: callable
selected_driver_id: int = 1
ignore_update: bool = False
temp_selection_index: int = 0
def update(self, cascade=True):
self.model_table.update()
self.ignore_update = True
self.selectRow(self.temp_selection_index)
self.ignore_update = False
def parent_update(self):
if self.parent_update_fn != None:
self.parent_update_fn()
def set_parent_update(self, fn):
self.parent_update_fn = fn
def on_selection(self):
if self.ignore_update: return
rows = self.selectionModel().selectedRows()
if len(rows) == 0: return
row = rows[0].row()
self.temp_selection_index = row
index = self.model_proxy.mapToSource(self.model_proxy.index(row, 0))
new_driver_id = self.model_table.headerData(index.row(), Qt.Vertical, Qt.DisplayRole)
if self.selected_driver_id == new_driver_id: return
self.selected_driver_id = new_driver_id
self.parent_update()
def __init__(self, cursor: mariadb.Cursor, parent=None):
super(DriverBrowser, self).__init__(parent)
self.cursor = cursor
self.setSelectionBehavior(QAbstractItemView.SelectRows)
self.model_table = DriverModel(self.cursor)
self.model_proxy = QSortFilterProxyModel()
self.model_proxy.setSourceModel(self.model_table)
self.setModel(self.model_proxy)
self.setSortingEnabled(True)
self.selectionModel().selectionChanged.connect(self.on_selection)
class DriverDetailsWidget(QWidget):
cursor: mariadb.Cursor
parent_update_fn: callable
selected_driver_id: int = 1
driver_details: DBMember
label_id: QLabel
img_driver: QLabel
line_edit_name_first: QLineEdit
line_edit_name_middle: QLineEdit
line_edit_name_last: QLineEdit
push_button_save: QPushButton
def update(self, cascade=True):
self.cursor.execute("select `ID`, `firstName`, `middleName`, `lastName`, `photo` from `member` where `ID` = ?", (self.selected_driver_id,))
self.driver_details = DBMember(*self.cursor.fetchone())
pixmap = QPixmap()
pixmap.loadFromData(self.driver_details.photo)
self.label_id.setText(str(self.driver_details.id))
self.img_driver.setScaledContents(True)
# self.img_driver.setSizePolicy(QSizePolicy.Policy.Ignored, QSizePolicy.Policy.Ignored)
# self.img_driver.setPixmap(pixmap.scaled(self.img_driver.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation))
self.img_driver.setPixmap(pixmap)
self.line_edit_name_first.setText(self.driver_details.first_name)
self.line_edit_name_middle.setText(self.driver_details.middle_name)
self.line_edit_name_last.setText(self.driver_details.last_name)
def parent_update(self):
if self.parent_update_fn != None:
self.parent_update_fn()
def set_driver_id(self, id):
self.selected_driver_id = id
self.update(False)
def set_parent_update(self, fn):
self.parent_update_fn = fn
def save_edits(self):
first_name = self.line_edit_name_first.text()
middle_name = self.line_edit_name_middle.text()
last_name = self.line_edit_name_last.text()
self.cursor.execute("update `member` set `firstName` = ?, `middleName` = ?, `lastName` = ? where `ID` = ?", (first_name, middle_name, last_name, self.selected_driver_id,))
self.parent_update()
def __init__(self, cursor: mariadb.Cursor, parent=None):
super(DriverDetailsWidget, self).__init__(parent)
self.cursor = cursor
self.driver_details = DBMember()
layout = QVBoxLayout(self)
layout.setAlignment(Qt.AlignmentFlag.AlignTop)
label_portrait = QLabel("Driver portrait")
self.img_driver = QLabel()
layout.addWidget(label_portrait)
layout.addWidget(self.img_driver)
details_form = QFormLayout(self)
self.label_id = QLabel()
self.line_edit_name_first = QLineEdit()
self.line_edit_name_middle = QLineEdit()
self.line_edit_name_last = QLineEdit()
details_form.addRow("ID", self.label_id)
details_form.addRow("First name", self.line_edit_name_first)
details_form.addRow("Middle name", self.line_edit_name_middle)
details_form.addRow("Last name", self.line_edit_name_last)
layout.addLayout(details_form)
self.push_button_save = QPushButton("Save edits")
self.push_button_save.clicked.connect(self.save_edits)
layout.addWidget(self.push_button_save)
self.setLayout(layout)
class TabDrivers(QWidget):
layout: SplitViewLayout
cursor: mariadb.Cursor
driver_browser: DriverBrowser
driver_details: DriverDetailsWidget
selected_driver_id: int = 1
def update(self, cascade=True):
print("update TabDrivers")
if not cascade: return
self.driver_browser.update(True)
self.driver_details.update(True)
def child_update(self):
self.selected_driver_id = self.driver_browser.selected_driver_id
self.driver_browser.update(False)
self.driver_details.set_driver_id(self.selected_driver_id)
def __init__(self, cursor: mariadb.Cursor, parent=None):
super(TabDrivers, self).__init__(parent)
self.cursor = cursor
self.layout = SplitViewLayout(self)
self.driver_browser = DriverBrowser(self.cursor, self)
self.driver_browser.set_parent_update(self.child_update)
self.layout.leftWidget(self.driver_browser)
self.driver_details = DriverDetailsWidget(self.cursor, self)
self.driver_details.set_parent_update(self.child_update)
self.layout.rightWidget(self.driver_details)
self.setLayout(self.layout)
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