[schema] load schema from modules names instead of directories
Introspect cubicweb, cubes and apphome using pkgutil to generate the full list
of modules names for loading the schema.
Keep historical behavior and check if source .py file exists if a module is
found using python bytecode file (.pyc and .pyo)
Loading schema from apphome require apphome to be present in sys.path and that
"schema" module resolve to a file located in apphome.
Update migraction tests to explicitely update sys.path when loading schema from
different apps, use a contextmanager for this so it's more readable.
Require updated logilab-common and yams
.. -*- coding: utf-8 -*-
RSS Channel
-----------
Assuming you have several blog entries, click on the title of the
search box in the left column. A larger search box should appear. Enter::
Any X ORDERBY D WHERE X is BlogEntry, X creation_date D
and you get a list of blog entries.
Click on your login at the top right corner. Chose "user preferences",
then "boxes", then "possible views box" and check "visible = yes"
before validating your changes.
Enter the same query in the search box and you will see the same list,
plus a box titled "possible views" in the left column. Click on
"entityview", then "RSS".
You just applied the "RSS" view to the RQL selection you requested.
That's it, you have a RSS channel for your blog.
Try again with::
Any X ORDERBY D WHERE X is BlogEntry, X creation_date D,
X entry_of B, B title "MyLife"
Another RSS channel, but a bit more focused.
A last one for the road::
Any C ORDERBY D WHERE C is Comment, C creation_date D LIMIT 15
displayed with the RSS view, that's a channel for the last fifteen
comments posted.
[WRITE ME]
* show that the RSS view can be used to display an ordered selection
of blog entries, thus providing a RSS channel
* show that a different selection (by category) means a different channel