Say I have a class that derives from a Node class that has a 'parent'
relationship (using 'parent_id' and 'id' fields):
from sqlalchemy.ext.hybrid import hybrid_property
class MyClass(Node):
@hybrid_property
def grandparent(self):
return self.parent.parent
@grandparent.expression
def grandparent(cls):
pass # hmm?
How would I go about the implementing the grandparent hybrid
expression? What I have is a boolean clause list with two comparisons
of 'parent_id' and 'id' using aliases (not included in the example).
I was hoping I could return that but it's not what it expects.
Thanks for your help.
--
http://danielnouri.org
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