arachnid/aetycoon

aetycoon provides a library of useful App Engine datastore property classes.

aetycoon's Issues

Missing license

Hey,
Maybe I'm missing something, but aetycoon doesn't include a license file or notice. Could you please add one?

@DerivedProperty(name='sha1') doesn't set the correct name

from the docstring,

class DatastoreFile(db.Model):
... @DerivedProperty(name='sha1')
... def hash(self):
... return hashlib.sha1(self.data).hexdigest()

I would expect the property to be named 'sha1', not 'hash'. But actually it is 'hash',

file.hash
'943a702d06f34599aee1f8da8ef9f7296031d699'

file.sha1 will raise an AttributeError.

Can you include the DecimalProperty you have written about?

Here's the post:

http://googleappengine.blogspot.com/2009/07/writing-custom-property-classes.html

Just so that there's not much duplication everywhere.

Make use of validator

If people set a validator in aetycoon property constructors, it is never used because validate() is never called. Properties should call validate() in get_value_for_datastore() to honor custom validators.

When property is empty, throws error

I am having some trouble using the transform property type.
In the case that the property being transformed is None or '', then this line throws an error:
if last_val == current_val:
return getattr(model_instance, self.__transformed_attr_name()) <- throws 'AttributeError: 'Foo object has no attribute '_derivedField' '