All released versions are hosted on the Python Package Index. You can install this package with following command.
pip install storiesstories provide a simple way to define a complex business scenario
that include many processing steps.
from stories import story, arguments, Success, Failure, Result
class Subscribe:
@story
@arguments('category_id', 'user_id')
def buy(I):
I.find_category
I.find_profile
I.check_balance
I.persist_subscription
I.show_subscription
def find_category(self, ctx):
category = Category.objects.get(id=ctx.category_id)
return Success(category=category)
def find_profile(self, ctx):
profile = Profile.objects.get(user_id=ctx.user_id)
return Success(profile=profile)
def check_balance(self, ctx):
if ctx.category.cost < ctx.profile.balance:
return Success()
else:
return Failure()
def persist_subscription(self, ctx):
subscription = Subscription(ctx.category, ctx.profile)
subscription.save()
return Success(subscription=subscription)
def show_subscription(self, ctx):
return Result(ctx.subscription)>>> Subscribe().buy(category_id=1, user_id=1)
<Subscription object>
>>> _This code style allow you clearly separate actual business scenario from implementation details.
Stories library is offered under the two clause BSD license.