stm32-fmt-code/access_control_python/database.py

78 lines
3.5 KiB
Python

import mysql.connector as sql
from dataclasses import dataclass
HOST = "192.168.0.239"
USER = "detector"
PASSWORD = "n9ZvEmZ7xSKE7cPx"
@dataclass
class Person():
id: int
name: str
surname: str
imagefile: str
@dataclass
class Student(Person):
pass
@dataclass
class Parent(Person):
pass
class Database:
db = None
cursor = None
def __init__(self) -> None:
self.db = sql.connect(host=HOST,user =USER,password=PASSWORD,database="face_detect")
self.cursor = self.db.cursor()
pass
def get_student_info(self, filename: str) -> Student:
statement = (f'SELECT * FROM students WHERE imagefile=\"{filename}\"')
self.cursor.execute(statement)
result = self.cursor.fetchone()
if result == None:
return None
student = Student(result[0],result[1],result[2],result[3])
return student
def get_parent_info(self, filename: str):
statement = (f'SELECT * FROM parents WHERE imagefile=\"{filename}\"')
self.cursor.execute(statement)
result = self.cursor.fetchone()
if result == None:
return None
parent = Parent(result[0],result[1],result[2],result[3])
return parent
def check_relationship_file(self, student_filename: str, parent_filename: str):
statement = f'SELECT id FROM `parent-student-relations` psr WHERE psr.student_id = (SELECT id FROM students WHERE students.imagefile = \"{student_filename}\") AND psr.parent_id = (SELECT id FROM parents WHERE parents.imagefile = "{parent_filename}")'
self.cursor.execute(statement)
return self.cursor.fetchone() != None
def check_relationship(self, student: Student, parent: Parent):
statement = f'SELECT id FROM `parent-student-relations` psr WHERE psr.student_id = {student.id} AND psr.parent_id = {parent.id}'
self.cursor.execute(statement)
return self.cursor.fetchone() != None
def log_access_student_file(self, student_filename: str, parent_filename: str):
statement = f'INSERT INTO face_detect.`access-log` (id, student_id, parent_id, `timestamp`) VALUES(NULL, (SELECT id FROM students WHERE students.imagefile = \"{student_filename}\"), (SELECT id FROM parents WHERE parents.imagefile = "{parent_filename}"), NULL)'
self.cursor.execute(statement)
self.db.commit()
def log_access_parent_file(self, parent_filename: str):
statement = f'INSERT INTO face_detect.`access-log` (id, student_id, parent_id, `timestamp`) VALUES(NULL, NULL, (SELECT id FROM parents WHERE parents.imagefile = "{parent_filename}"), NULL)'
self.cursor.execute(statement)
self.db.commit()
def log_access_student_with_parent(self, student: Student, parent: Parent):
statement = f'INSERT INTO face_detect.`access-log` (id, student_id, parent_id, `timestamp`) VALUES(NULL, {student.id}, {parent.id}, NULL)'
self.cursor.execute(statement)
self.db.commit()
def log_access_parent(self, parent: Parent):
statement = f'INSERT INTO face_detect.`access-log` (id, student_id, parent_id, `timestamp`) VALUES(NULL, NULL, {parent.id}, NULL)'
self.cursor.execute(statement)
self.db.commit()
# def log_access_student(self, parent: Parent):
# statement = f'INSERT INTO face_detect.`access-log` (id, student_id, parent_id, `timestamp`) VALUES(NULL, {student.id}, NULL, NULL)'
# self.cursor.execute(statement)
# self.db.commit()
def fetch_log() -> list:
pass