+import pkg_resources
+
from sqlalchemy import MetaData, Table, create_engine, orm
from .tables import metadata
-def connect(uri):
+def connect(uri=None, **kwargs):
"""Connects to the requested URI. Returns a session object.
+ With the URI omitted, attempts to connect to a default SQLite database
+ contained within the package directory.
+
Calling this function also binds the metadata object to the created engine.
"""
+ # Default to a URI within the package, which was hopefully created at some point
+ if not uri:
+ sqlite_path = pkg_resources.resource_filename('pokedex',
+ 'data/pokedex.sqlite')
+ uri = 'sqlite:///' + sqlite_path
+
### Do some fixery for MySQL
if uri[0:5] == 'mysql':
# MySQL uses latin1 for connections by default even if the server is
if 'charset' not in uri:
uri += '?charset=utf8'
- # Tables should be InnoDB, in the event that we're creating them
+ # Tables should be InnoDB, in the event that we're creating them, and
+ # use UTF-8 goddammit!
for table in metadata.tables.values():
table.kwargs['mysql_engine'] = 'InnoDB'
+ table.kwargs['mysql_charset'] = 'utf8'
### Connect
engine = create_engine(uri)
conn = engine.connect()
metadata.bind = engine
- sm = orm.sessionmaker(autoflush=True, autocommit=False, bind=engine)
+ session_args = dict(autoflush=True, autocommit=False, bind=engine)
+ session_args.update(kwargs)
+ sm = orm.sessionmaker(**session_args)
session = orm.scoped_session(sm)
return session