config.py

import os
basedir = os.path.abspath(os.path.dirname(__file__))

class Config(object):

    #seret key is set in __ini__.py
    #SECRET_KEY = os.environ.get('SECRET_KEY') or 'you-will-never-guess'    


    LANGUAGES = ['en', 'fi', 'fa', 'el', 'it', 'zh']

    """
    #SQLITE3 connection settings: 

    SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or \
        'sqlite:///' + os.path.join(basedir, 'app.db')
    SQLALCHEMY_TRACK_MODIFICATIONS = False
    """

    #MariaDB mysql database settings

    MYSQL_USER = 'rating'
    MYSQL_PASSWORD = 'rating_passwd'
    MYSQL_SERVER = 'localhost'
    MYSQL_DB = 'rating_db' 
    
    SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://'+MYSQL_USER+':'+MYSQL_PASSWORD+'@'+MYSQL_SERVER+'/'+MYSQL_DB+'?charset=utf8mb4'
   
    SQLALCHEMY_TRACK_MODIFICATIONS = False

    SQLALCHEMY_ENGINE_OPTIONS = {
	"pool_pre_ping": True,
	"pool_recycle": 300,
	"max_overflow": 30,
	"pool_size": 20
    }
    
    TEMPLATES_AUTO_RELOAD = True
    DEBUG = False