[devtools] fix get_bounds
Say an attribute has two IntervalBoundConstraints, one with minvalue=0
and the other with maxvalue=10 (not literally, or that could be a single
constraint, but e.g. with references to other attributes). We don't want to
override the minvalue of the former with None just because the latter happens
last in the constraints list.
This doesn't fix the case where two constraints both have a min or a max
value. Meh.
About this site
===============
This web application is based on the CubicWeb knowledge management system
from Logilab_. CubicWeb is made of an object database and a web
framework. It allows to develop an application by defining a set of
entities and their relationships, plus a set of views that present the
data selected from the object database using a specific query language.
This application has a precise schema_ and can be considered an
example of a semantic web database, as it can export the data to XML
and others formats and is not limited to publishing HTML.
Supported formats: |microformats|_ - JSON_ - |rss|_ - |dublincore|_
.. |microformats| image:: /data/microformats-button.png
.. _microformats: http://microformats.org
.. _JSON: http://www.json.org/
.. |rss| image:: /data/rss-button.png
.. _rss: http://www.rssboard.org
.. |dublincore| image:: /data/dublincore-button.png
.. _dublincore: http://dublincore.org
.. _Logilab: http://www.logilab.fr/
.. _schema: ../schema