ecole-sql/formulaire.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import PySimpleGUI as sg 
import sqlite3

db = sqlite3.connect('ecole.sqlite3')
cursor = db.cursor()

cursor.execute("""PRAGMA foreign_keys=ON;""")
cursor.execute("""CREATE TABLE IF NOT EXISTS localites(
                        ID_Localite INTEGER PRIMARY KEY AUTOINCREMENT,
                        zipcode TEXT,
                        localite TEXT);
               """)
cursor.execute("""CREATE TABLE IF NOT EXISTS eleves(
                        ID_Eleve INTEGER PRIMARY KEY AUTOINCREMENT,
                        Prenom TEXT,
                        Nom TEXT,
                        RefLocalite INTEGER,
                        FOREIGN KEY(RefLocalite) REFERENCES localites(Id_Localite));
               """)

def select_all_eleves():
    cursor.execute("""SELECT id_eleve, nom, prenom, ifnull(refLocalite, ''), ifnull(zipcode, '-'), ifnull(localite, '-')
                    FROM eleves
                    LEFT JOIN localites
                    ON eleves.reflocalite=localites.id_localite
                    ORDER BY nom, prenom;
                """)
    liste_eleves = cursor.fetchall()
    return liste_eleves


def select_all_localites():
    cursor.execute("""SELECT id_Localite, zipcode, localite
                    FROM localites 
                    ORDER BY zipcode, localite;
                """)
    liste_localite = cursor.fetchall()
    return liste_localite

liste_eleves = select_all_eleves()
liste_localites = select_all_localites()
liste_localites_combo = [f"{cp} {loc}" for _, cp, loc in liste_localites]

def make_main_window():
    col = [
        [sg.Button('Ajouter', size=(10, 1), bind_return_key=True)],
        [sg.Button('Modifier', size=(10, 1))],
        [sg.Button('Supprimer', size=(10, 1))],
        [sg.Button('Quitter', size=(10, 1))],
    ]
    layout = [
        [sg.Text('Liste des élèves')],
        [sg.Table(values=liste_eleves,
                  headings=['', 'Prénom', 'Nom', '', 'Code postal', 'Localité'],
                  max_col_width=25,
                  col_widths=[0, 15, 15, 0, 10, 15],
                  hide_vertical_scroll=True,
                  background_color='light blue',
                  text_color='black',
                  auto_size_columns=False,
                  justification='right',
                  num_rows=len(liste_eleves),
                  alternating_row_color='lightyellow',
                  key='table_eleves',
                  tooltip='Liste des élèves'), sg.Column(col)],
    ]
    window = sg.Window('Formulaire',
                       layout=layout,
                       size=(650, 500),
                       finalize=True)
    return window


def make_add_window(caption,
                    role='create',
                    initial_values=None,
                    eleve_id=None):
    prenom, nom, id_localite, combo_value = ('','', '', '') if not initial_values else initial_values
    layout = [
        [sg.Text(text='Prénom', size=(10,2)),
         sg.InputText(default_text=prenom,
                      size=(20,2),
                      k='prenom')],
        [sg.Text(text='Nom', size=(10,2)),
         sg.InputText(default_text=nom,
                      size=(20,2),
                      k='nom')],
        [sg.Text(text='Localité', size=(10,2)),
         sg.Combo(liste_localites_combo,
                  size=(18,10),
                  k='localite',
                  enable_events=True,
                  default_value=combo_value)],
        [sg.Button('Valider', bind_return_key=True),
         sg.Button('Annuler', bind_return_key=True)],
        [sg.InputText(default_text=id_localite, k="id_localite", visible=False)]
    ]
    window = sg.Window(caption,
                       layout=layout,
                       finalize=True)
    window.role = role
    window.eleve_id = eleve_id
    return window


def main():
    liste_eleves = select_all_eleves()
    liste_localites = select_all_localites()
    liste_localites_combo = [f"{cp} {loc}" for _, cp, loc in liste_localites]

    window1, window2 = make_main_window(), None

    while True:
        window, event, values = sg.read_all_windows()
        print(f'window : {window}, event : {event}, values : {values}')
        if window == window1:
            if event in (sg.WIN_CLOSED, 'Quitter'):
                break
            
            if event == 'Ajouter':
                window2 = make_add_window('Ajouter', role='create')
                window2.make_modal()
            
            if event == 'Supprimer':
                try:
                    id_eleve = liste_eleves[values['table_eleves'][0]][0]
                except IndexError:
                    sg.popup_ok('Veuillez sélectionner un enregistrement à supprimer')
                    continue
                confirmation = sg.popup("Confirmez-vous la suppression ?",
                                        button_type=sg.POPUP_BUTTONS_OK_CANCEL,
                                        custom_text=("Oui", "Non"))
                if confirmation=="Non":
                    continue
                cursor.execute("""DELETE FROM eleves WHERE ID_Eleve=?""",(id_eleve,))
                db.commit()
                liste_eleves = select_all_eleves()
                window1['table_eleves'].update(values=liste_eleves,
                                            num_rows=len(liste_eleves))

            if event == 'Modifier':
                try:
                    id_eleve, nom, prenom, refLocalite, zipcode, localite = liste_eleves[values['table_eleves'][0]]
                except IndexError:
                    sg.popup_ok('Veuillez sélectionner un enregistrement à modifier')
                    continue            
                window2 = make_add_window('Modifier',
                                        initial_values=[prenom, nom, refLocalite, zipcode+" "+localite],
                                        role='modify',
                                        eleve_id=id_eleve)
                window2.make_modal()

        if window == window2:
            if event in (sg.WIN_CLOSED, 'Annuler'):
                window2.close()
                window2 = None
            
            if event == 'localite':
                index = liste_localites_combo.index(values['localite'])
                ID_Localite = liste_localites[index][0]
                window['id_localite'].update(ID_Localite)
            
            if window.role == 'create' and event == 'Valider':
                prenom = values['prenom'].capitalize()
                nom = values['nom'].upper()
                id_localite = values['id_localite']
                # print(f"prenom : {prenom}, nom : {nom}")
                cursor.execute("""INSERT INTO eleves(prenom, nom, refLocalite)
                                VALUES(?,?,?);""", (prenom, nom, id_localite))
                db.commit()
                liste_eleves = select_all_eleves()
                window1['table_eleves'].update(values=liste_eleves, num_rows=len(liste_eleves))
                window2.close()
                window2 = None

            if window.role == 'modify' and event == 'Valider':
                confirmation = sg.popup("Confirmez-vous la modification ?",
                                        button_type=sg.POPUP_BUTTONS_OK_CANCEL,
                                        custom_text=("Oui", "Non"))
                if confirmation=="Non":
                    continue
                prenom = values['prenom'].capitalize()
                nom = values['nom'].upper()
                id_localite = values['id_localite']
                # print(f"prenom : {prenom}, nom : {nom}")
                cursor.execute("""UPDATE eleves
                                SET prenom=?,
                                nom=?,
                                refLocalite=?
                                WHERE id_eleve=?;
                            """, (prenom, nom, id_localite, window.eleve_id))
                db.commit()
                liste_eleves = select_all_eleves()
                window1['table_eleves'].update(values=liste_eleves,
                                            num_rows=len(liste_eleves))
                window2.close()
                window2 = None

    window1.close()
    if window2 is not None:
        window2.close()

    db.close()
    print('Bye !')

if __name__ == "__main__":
    main()