tip/ProjectDjango/DjangoMigrationSelectionDialog.py

# -*- coding: utf-8 -*-

# Copyright (c) 2016 - 2025 Detlev Offenbach <detlev@die-offenbachs.de>
#

"""
Module implementing a dialog to select an application and migration.
"""

import os

from PyQt6.QtCore import pyqtSlot
from PyQt6.QtGui import QIcon
from PyQt6.QtWidgets import QDialog

from .Ui_DjangoMigrationSelectionDialog import Ui_DjangoMigrationSelectionDialog


class DjangoMigrationSelectionDialog(QDialog, Ui_DjangoMigrationSelectionDialog):
    """
    Class implementing a dialog to select an application and migration.
    """

    def __init__(self, migrations, migrationRequired=False, suffix="", parent=None):
        """
        Constructor

        @param migrations dictionary containing the available migrations
        @type dict
        @param migrationRequired flag indicating that a migration must be
            selected
        @type bool
        @param suffix icon suffix
        @type str
        @param parent reference to the parent widget
        @type QWidget
        """
        super().__init__(parent)
        self.setupUi(self)

        self.__appliedIcon = QIcon(
            os.path.join(
                os.path.dirname(__file__), "icons", "applied-{0}".format(suffix)
            )
        )

        self.__migrationRequired = migrationRequired

        self.__migrations = migrations
        self.applicationComboBox.addItems(sorted(self.__migrations.keys()))
        self.on_applicationComboBox_currentTextChanged(
            self.applicationComboBox.currentText()
        )

        msh = self.minimumSizeHint()
        self.resize(max(self.width(), msh.width()), msh.height())

    @pyqtSlot(str)
    def on_applicationComboBox_currentTextChanged(self, app):
        """
        Private slot to update the migrations combo box.

        @param app name of the selected application
        @type str
        """
        self.migrationsComboBox.clear()
        if not self.__migrationRequired:
            self.migrationsComboBox.addItem("")
        for applied, migration in self.__migrations[app]:
            if applied:
                self.migrationsComboBox.addItem(self.__appliedIcon, migration)
            else:
                self.migrationsComboBox.addItem(migration)

    def getData(self):
        """
        Public method to get the selected data.

        @return tuple containing the selected application name and migration
        @rtype tuple of two str
        """
        return (
            self.applicationComboBox.currentText(),
            self.migrationsComboBox.currentText(),
        )