Drop python2 support
This mostly consists in removing the dependency on "six" and updating
the code to use only Python3 idioms.
Notice that we previously used TemporaryDirectory from
cubicweb.devtools.testlib for compatibility with Python2. We now
directly import it from tempfile.
.. _XmlAndRss:
XML and RSS views
-----------------
(:mod:`cubicweb.web.views.xmlrss`)
Overview
+++++++++
*rss*
Creates a RSS/XML view and call the view `rssitem` for each entity of
the result set.
*rssitem*
Create a RSS/XML view for each entity based on the results of the dublin core
methods of the entity (`dc_*`)
RSS Channel Example
++++++++++++++++++++
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:
.. sourcecode:: sql
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:
.. sourcecode:: sql
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:
.. sourcecode:: sql
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