class ModelWithComputedProperty(Model):
s = props.String()
def compute(self):
return self.s.upper() if self.s else None
c = props.Computed(compute)
class ModelWithComputedProperty3(Model):
calls = []
def __compute(self):
self.calls.append(1)
return 42
c = props.Computed(__compute)
class Post(Model):
author = props.Key(indexed=True, kind=User)
title = props.String()
def __compute_slug(self):
if self.title is None:
return None
return slugify(self.title)
def __compute_body(self):
if self.body is None:
return None
return markdown(self.body)
slug = props.Computed(__compute_slug)
body = props.Text()
body_markdown = props.Computed(__compute_body)
tags = props.String(indexed=True, repeated=True)
created_at = props.DateTime(indexed=True, auto_now_add=True)
updated_at = props.DateTime(indexed=True, auto_now=True)
class ModelWithComputedProperty2(Model):
c = props.Computed(lambda s: 42)
class ModelWithComputedProperty1(Model):
c = props.Computed(f)