[Sqlalchemy-commits] commit/sqlalchemy: zzzeek: Check for __clause_element__() in ORM insert/update

[Bitbucket <com...@bi...>]

1 new commit in sqlalchemy:

https://bitbucket.org/zzzeek/sqlalchemy/commits/09b685b24b19/
Changeset:   09b685b24b19
Branch:      master
User:        zzzeek
Date:        2016-10-05 16:11:53+00:00
Summary:     Check for __clause_element__() in ORM insert/update

ORM attributes can now be assigned any object that is has a
``__clause_element__()`` attribute, which will result in inline
SQL the way any :class:`.ClauseElement` class does.  This covers other
mapped attributes not otherwise transformed by further expression
constructs.

As part of this, it was considered that we could add
__clause_element__() to ClauseElement, however this causes endless loops
in a "while" pattern and this pattern has been identified in third
party libraries.  Add a test to ensure we never make that change.

Change-Id: I9e15b3f1c4883fd3909acbf7dc81d034c6e3ce1d
Fixes: #3802

Affected #:  6 files

Repository URL: https://bitbucket.org/zzzeek/sqlalchemy/

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