Source code for src.data.database.db

#!/usr/bin/env python

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# Copyright (c) 2017 Sardegna Clima - Raffaele Bua (buele)
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from src.data.database.base import Base
import configparser


from sqlalchemy import *
from sqlalchemy.orm import *

__author__ = "Raffaele Bua (buele)"
__copyright__ = "Copyright 2017, Sardegna Clima"
__credits__ = ["Raffaele Bua"]
__license__ = "MIT"
__version__ = "0.1"
__maintainer__ = "Raffaele Bua"
__contact__ = "info@raffaelebua.eu"
__status__ = "Development"



class DB:
    """ Database wrapper exploiting SqlAlchemy ORM.
    """
    def __init__(self):
        self.config = configparser.ConfigParser()
        self.config.read("src/data/database/config/db.cfg")
        self.engine = create_engine(self.config['database']['connection_string_create'], pool_recycle=3600)

    def create_db(self):
        """ This method creates a new database from scratch.
        """
        try:
            conn = self.engine.connect()
            conn.execute("commit")
            conn.execute("create database ichnosat")
            conn.close()

            engine2 = create_engine(self.config['database']['connection_string'], pool_recycle=3600)
            Base.metadata.create_all(engine2)
            return "created_database"
        except Exception as err:
            pass
            return False