[server] fix 'cnx' variable confusion in DBG_SQL exception case
The rollback handling expects 'cnx' to be the cubicweb Connection, but
the DBG_SQL block was replacing it with an sql connection, leading to
lulz down the line. Also remove obsolete getattr (the sqlite wrapping
is now done at the cnxset level, so cnx.cnxset.cnx should be the right
thing already).
CSS Coding Standards
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(Draft, to be continued)
:Naming: camelCase
Indentation rules
~~~~~~~~~~~~~~~~~
- 2 espaces avant les propriétés
- pas d'espace avant les ":", un espace après
- 1 seul espace entre les différentes valeurs pour une même propriété
Documentation
~~~~~~~~~~~~~
Please keep rules semantically linked grouped together, with a comment about
what they are for.
Recommendation
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- Try to use existing classes rather than introduce new ones
- Keep things as simple as possible while in the framework
- Think about later customization by application
- Avoid introducing a new CSS file for a few lines of CSS, at least while the
framework doesn't include packing functionalities