site/backend/app.py

60 lines
1.7 KiB
Python
Raw Normal View History

import os
from datetime import datetime
from flask import Flask
import mysql.connector
class DBManager:
def __init__(self, database='flask', host="db", user="flasku", password="flaskp"):
envuser = os.getenv("MYSQL_USER")
envpass = os.getenv("MYSQL_PASSWORD")
#printf("DEBUG:" + envuser + envpass)
self.connection = mysql.connector.connect(
user=envuser,
#user=user,
password=envpass,
#password=password,
host=host, # name of the mysql service as set in the docker compose file
database=database
#auth_plugin='mysql_native_password'
)
self.cursor = self.connection.cursor()
def populate_db(self):
self.cursor.execute('DROP TABLE IF EXISTS blog')
self.cursor.execute('CREATE TABLE blog (id INT AUTO_INCREMENT PRIMARY KEY, title VARCHAR(255))')
self.cursor.executemany('INSERT INTO blog (id, title) VALUES (%s, %s);', [(i, 'Database entry #%d'% i) for i in range (1,5)])
self.connection.commit()
def query_titles(self):
self.cursor.execute('SELECT title FROM blog')
rec = []
for c in self.cursor:
rec.append(c[0])
return rec
server = Flask(__name__)
conn = None
@server.route('/')
def listBlog():
global conn
if not conn:
conn = DBManager()
conn.populate_db()
rec = conn.query_titles()
response = ''
for c in rec:
response = response + '<div> Log: ' + c + '</div>'
dt = datetime.now()
dtFormatted = dt.strftime("%Y-%m-%d %H:%M")
response = response + '<div>Delta: ' + dtFormatted + '</div>'
return response
if __name__ == '__main__':
server.run()