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# Copyright 2013 Google Inc. All Rights Reserved.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

"""

Sample App Engine application demonstrating how to connect to Google Cloud SQL

using App Engine's native unix socket.

For more information, see the README.md.

"""

import os

import MySQLdb

import webapp2

CLOUDSQL_PROJECT = '<your-project-id>'

CLOUDSQL_INSTANCE = '<your-cloud-sql-instance>'

class MainPage(webapp2.RequestHandler):

def get(self):

self.response.headers['Content-Type'] = 'text/plain'

# When running on Google App Engine, use the special unix socket

# to connect to Cloud SQL.

if os.getenv('SERVER_SOFTWARE', '').startswith('Google App Engine/'):

db = MySQLdb.connect(

unix_socket='/cloudsql/{}:{}'.format(

CLOUDSQL_PROJECT,

CLOUDSQL_INSTANCE),

user='root')

# When running locally, you can either connect to a local running

# MySQL instance, or connect to your Cloud SQL instance over TCP.

else:

db = MySQLdb.connect(host='localhost', user='root')

cursor = db.cursor()

cursor.execute('SHOW VARIABLES')

for r in cursor.fetchall():

self.response.write('{}\n'.format(r))

app = webapp2.WSGIApplication([

('/', MainPage),

], debug=True)