graphene/examples/flask_sqlalchemy/database.py
2016-04-13 14:16:01 +02:00

39 lines
1.4 KiB
Python

from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import scoped_session, sessionmaker
engine = create_engine('sqlite:///database.sqlite3', convert_unicode=True)
db_session = scoped_session(sessionmaker(autocommit=False,
autoflush=False,
bind=engine))
Base = declarative_base()
Base.query = db_session.query_property()
def init_db():
# import all modules here that might define models so that
# they will be registered properly on the metadata. Otherwise
# you will have to import them first before calling init_db()
from models import Department, Employee, Role
Base.metadata.drop_all(bind=engine)
Base.metadata.create_all(bind=engine)
# Create the fixtures
engineering = Department(name='Engineering')
db_session.add(engineering)
hr = Department(name='Human Resources')
db_session.add(hr)
manager = Role(name='manager')
db_session.add(manager)
engineer = Role(name='engineer')
db_session.add(engineer)
peter = Employee(name='Peter', department=engineering, role=engineer)
db_session.add(peter)
roy = Employee(name='Roy', department=engineering, role=engineer)
db_session.add(roy)
tracy = Employee(name='Tracy', department=hr, role=manager)
db_session.add(tracy)
db_session.commit()