84 lines
2.8 KiB
Python
84 lines
2.8 KiB
Python
from uuid import uuid4
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import mysql.connector
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class Database:
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def __init__(self, app):
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self.db = mysql.connector.connect(
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host=app.config["DB_HOSTNAME"],
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user=app.config["DB_USERNAME"],
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password=app.config["DB_PASSWORD"],
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database=app.config["DB_DATABASE"]
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)
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def delete_old_sessions(self):
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cursor = self.db.cursor()
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cursor.execute("DELETE FROM sessions WHERE expiry_date <= CURRENT_TIMESTAMP")
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self.db.commit()
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cursor.close()
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def create_session(self, username, password):
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cursor = self.db.cursor()
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cursor.execute("SELECT user_id FROM utilisateurs WHERE username=%s AND password=%s", (username, password))
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if result := cursor.fetchall():
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user_id = result[0][0]
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else:
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return None
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uuid = str(uuid4())
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cursor.execute("INSERT INTO sessions (session_id, user_id) VALUES (%s, %s)", (uuid, user_id))
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self.db.commit()
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cursor.close()
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return uuid
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def destroy_session(self, uuid):
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cursor = self.db.cursor()
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cursor.execute("DELETE FROM sessions WHERE session_id=%s", (uuid,))
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self.db.commit()
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cursor.close()
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def check_connection(self, uuid):
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cursor = self.db.cursor()
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cursor.execute("SELECT session_id FROM sessions WHERE session_id=%s", (uuid,))
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result = cursor.fetchall()
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cursor.close()
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return result
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class User:
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def __init__(self, user_id, username, nom, prenom, creation_date):
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self.id = user_id
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self.username = username
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self.nom = nom
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self.prenom = prenom
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self.creation_date = creation_date
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class Session:
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def __init__(self, db, uuid):
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self.db = db
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self.uuid = uuid
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self.user = self.get_user()
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def get_user(self):
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cursor = self.db.db.cursor()
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cursor.execute("SELECT utilisateurs.user_id, username, nom, prenom, creation_date FROM utilisateurs "
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"JOIN sessions ON utilisateurs.user_id=sessions.user_id WHERE session_id=%s", (self.uuid,))
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result = cursor.fetchall()
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cursor.close()
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return User(*result[0])
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def fetch_grades(self):
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cursor = self.db.db.cursor()
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cursor.execute("SELECT matieres.libelle, devoirs.libelle, date, coefficient, valeur, maximum FROM notes "
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"JOIN devoirs ON notes.id_devoir=devoirs.id_devoir "
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"JOIN matieres ON devoirs.id_matiere=matieres.id_matiere WHERE id_eleve=%s", (self.user.id,))
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result = cursor.fetchall()
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cursor.close()
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dico = {}
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for note in result:
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if note[0] in dico:
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dico[note[0]].append(note)
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else:
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dico[note[0]] = [note]
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return dico |