-import os
-import pkg_resources
-
-from sqlalchemy import MetaData, Table, create_engine, orm
+from sqlalchemy import MetaData, Table, engine_from_config, orm
+from ..defaults import get_default_db_uri
from .tables import metadata
-def connect(uri=None, session_args={}, engine_args={}):
+
+def connect(uri=None, session_args={}, engine_args={}, engine_prefix=''):
"""Connects to the requested URI. Returns a session object.
With the URI omitted, attempts to connect to a default SQLite database
Calling this function also binds the metadata object to the created engine.
"""
- # Fall back to the environment, then a URI within the package
- if not uri:
- uri = os.environ.get('POKEDEX_DB_ENGINE', None)
-
- if not uri:
- sqlite_path = pkg_resources.resource_filename('pokedex',
- 'data/pokedex.sqlite')
- uri = 'sqlite:///' + sqlite_path
+ # If we didn't get a uri, fall back to the default
+ if uri is None:
+ uri = engine_args.get(engine_prefix + 'url', None)
+ if uri is None:
+ uri = get_default_db_uri()
### Do some fixery for MySQL
if uri[0:5] == 'mysql':
table.kwargs['mysql_charset'] = 'utf8'
### Connect
- engine = create_engine(uri, **engine_args)
+ engine_args[engine_prefix + 'url'] = uri
+ engine = engine_from_config(engine_args, prefix=engine_prefix)
conn = engine.connect()
metadata.bind = engine