class LineItem(model.EntityPrepare):
weight = model.Quantity()
price = model.Quantity()
description = model.NoneBlank()
def __init__(self, weight, price, description):
self.weight = weight
self.price = price
self.description = description
def subtotal(self):
return self.weight * self.price
class LineItem:
description = model.NonBlank()
weight = model.Quantity()
price = model.Quantity()
def __init__(self, description, weight, price):
self.description = description
self.weight = weight
self.price = price
def subtotal(self):
return self.weight * self.price
class LineItem:
'''
>>> raisins = LineItem('Golden raisins', 10, 6.95)
>>> dir(raisins)[:3]
['_NonBlank#description', '_Quantity#price', '_Quantity#weight']
>>> LineItem.description.storage_name
'_NonBlank#description'
>>> raisins.description
'Golden raisins'
>>> getattr(raisins, '_NonBlank#description')
'Golden raisins'
'''
description = model.NonBlank()
weight = model.Quantity()
price = model.Quantity()
def __init__(self, description, weight, price):
self.description = description
self.weight = weight
self.price = price
def subtotal(self):
return self.weight * self.price
