[constraint] more robust unicity constraint failures reporting for end-users Postgres or Sqlserver have limits on the index names (around resp. 64 and 128 characters). Because `logilab.database` encodes the `unique together` constraint rtypes in the index names, we sometimes get truncated index names, from which it is impossible to retrieve all rtypes. In the long run, the way such index are named should be changed. In the short term, we try to reduce the end-user confusion resulting from this design flaw: * in source/native, the regex filtering ``IntegrityError`` message does not impose an `_idx` suffix, which indeed may be absent (the result being an UI message that resembles a catastrophic failure), * also we avoid including a trailing " (double quote) from the error message * in entities/adapters, the well-named ``IUserFriendly`` adapter is made a bit smarter about how to handle missing rtypes. * the adapter also always produces a global message explaining the issue (and the fact that sometimes, the user is not shown all the relevant info) * i18n is updated Closes #2793789

CubicWeb semantic web framework
===============================

CubicWeb is a entities / relations based knowledge management system
developped at Logilab.

This package contains:

- a repository server
- a RQL command line client to the repository
- an adaptative modpython interface to the server
- a bunch of other management tools

Install
-------

More details at http://docs.cubicweb.org/admin/setup

Getting started
---------------

Execute::

 apt-get install cubicweb cubicweb-dev cubicweb-blog
 cubicweb-ctl create blog myblog
 cubicweb-ctl start -D myblog
 sensible-browser http://localhost:8080/

Details at http://docs.cubicweb.org/tutorials/base/blog-in-five-minutes

Documentation
-------------

Look in the doc/ subdirectory or read http://docs.cubicweb.org/