#!/usr/bin/env python
# -*- coding: utf-8 -*-

# MySQL Connector/Python - MySQL driver written in Python.
# Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.

# MySQL Connector/Python is licensed under the terms of the GPLv2
# <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most
# MySQL Connectors. There are special exceptions to the terms and
# conditions of the GPLv2 as it is applied to this software, see the
# FOSS License Exception
# <http://www.mysql.com/about/legal/licensing/foss-exception.html>.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

import sys, os

import mysql.connector

"""

Example using MySQL Connector/Python showing:
* the usefulness of unicode, if it works correctly..
* dropping and creating a table
* inserting and selecting a row
"""

info = """
For this to work you need to make sure your terminal can output
unicode character correctly. Check if the encoding of your terminal
is set to UTF-8.
"""

def main(config):
    output = []
    db = mysql.connector.Connect(**config)
    cursor = db.cursor()
    
    # Show the unicode string we're going to use
    unistr = "\u00bfHabla espa\u00f1ol?"
    output.append("Unicode string: %s" % unistr)
    
    # Drop table if exists, and create it new
    stmt_drop = "DROP TABLE IF EXISTS unicode"
    cursor.execute(stmt_drop)
    
    stmt_create = """
    CREATE TABLE unicode (
        id TINYINT UNSIGNED NOT NULL AUTO_INCREMENT,
        str VARCHAR(50) DEFAULT '' NOT NULL,
        PRIMARY KEY (id)
    ) CHARACTER SET 'utf8'"""
    cursor.execute(stmt_create)
    
    # Insert a row
    stmt_insert = "INSERT INTO unicode (str) VALUES (%s)"
    cursor.execute(stmt_insert, (unistr,))
    
    # Select it again and show it
    stmt_select = "SELECT str FROM unicode WHERE id = %s"
    cursor.execute(stmt_select, (1,))
    row = cursor.fetchone()
    
    output.append("Unicode string coming from db: " + row[0])
    
    # Cleaning up, dropping the table again
    cursor.execute(stmt_drop)
    
    cursor.close()
    db.close()
    return output

if __name__ == '__main__':
    #
    # Configure MySQL login and database to use in config.py
    #
    import config
    config = config.Config.dbinfo().copy()
    print(info)
    out = main(config)
    print('\n'.join(out))
