https://github.com/NYUCCL/psiTurk
Tip revision: dbb6fff417a3beac0db7dec603d4793eabc68a89 authored by Dave Eargle on 20 February 2019, 20:56:29 UTC
bump version but not calling it stable in readme yet
bump version but not calling it stable in readme yet
Tip revision: dbb6fff
db.py
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, scoped_session
from sqlalchemy.ext.declarative import declarative_base
from psiturk_config import PsiturkConfig
import re, os
config = PsiturkConfig()
config.load_config()
r = re.compile("OPENSHIFT_(.+)_DB_URL") # Might be MYSQL or POSTGRESQL
matches = filter(r.match, os.environ)
if matches:
DATABASE = "{}{}".format(os.environ[matches[0]], os.environ['OPENSHIFT_APP_NAME'])
else:
DATABASE = config.get('Database Parameters', 'database_url')
if 'mysql://' in DATABASE.lower():
try:
__import__('imp').find_module('pymysql')
except ImportError:
print("To use a MySQL database you need to install "
"the `pymysql` python package. Try `pip install "
"pymysql`.")
exit()
# internally use `mysql+pymysql://` so sqlalchemy talks to
# the pymysql package
DATABASE = DATABASE.replace('mysql://', 'mysql+pymysql://')
engine = create_engine(DATABASE, echo=False, pool_recycle=3600)
db_session = scoped_session(sessionmaker(autocommit=False,
autoflush=False,
bind=engine))
Base = declarative_base()
Base.query = db_session.query_property()
def init_db():
#print "Initalizing db if necessary."
Base.metadata.create_all(bind=engine)