+
−3.20 (06/01/2015)
+
−=================
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−
+
−New features
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−------------
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−
+
−* virtual relations: a new ComputedRelation class can be used in
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−  schema.py; its `rule` attribute is an RQL snippet that defines the new
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−  relation.
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−
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−* computed attributes: an attribute can now be defined with a `formula`
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−  argument (also an RQL snippet); it will be read-only, and updated
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−  automatically.
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−
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−  Both of these features are described in `CWEP-002`_, and the updated
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−  "Data model" chapter of the CubicWeb book.
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−
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−* cubicweb-ctl plugins can use the ``cubicweb.utils.admincnx`` function
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−  to get a Connection object from an instance name.
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−
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−* new 'tornado' wsgi backend
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−
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−* session cookies have the HttpOnly flag, so they're no longer exposed to
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−  javascript
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−
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−* rich text fields can be formatted as markdown
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−
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−* the edit controller detects concurrent editions, and raises a ValidationError
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−  if an entity was modified between form generation and submission
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−
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−* cubicweb can use a postgresql "schema" (namespace) for its tables
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−
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−* "cubicweb-ctl configure" can be used to set values of the admin user
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−  credentials in the sources configuration file
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−
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−* in debug mode, setting the _cwtracehtml parameter on a request allows tracing
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−  where each bit of output is produced
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−
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−.. _CWEP-002: http://hg.logilab.org/review/cwep/file/tip/CWEP-002.rst
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−
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−
+
−API Changes
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−-----------
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−
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−* ``ucsvreader()`` and ``ucsvreader_pb()`` from the ``dataimport`` module have
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−  2 new keyword arguments ``delimiter`` and ``quotechar`` to replace the
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−  ``separator`` and ``quote`` arguments respectively. This makes the API match
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−  that of Python's ``csv.reader()``.  The old arguments are still supported
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−  though deprecated.
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−
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−* the migration environment's ``remove_cube`` function is now called ``drop_cube``.
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−
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−* cubicweb.old.css is now cubicweb.css.  The previous "new"
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−  cubicweb.css, along with its cubicweb.reset.css companion, have been
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−  removed.
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−
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−* the jquery-treeview plugin was updated to its latest version
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−
+
−
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−Deprecated Code Drops
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−----------------------
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−
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−* most of 3.10 and 3.11 backward compat is gone; this includes:
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−
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−  - CtxComponent.box_action() and CtxComponent.build_link()
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−  
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−  - cubicweb.devtools.htmlparser.XMLDemotingValidator
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−  
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−  - various methods and properties on Entities, replaced by cw_edited
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−    and cw_attr_cache
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−  
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−  - 'commit_event' method on hooks, replaced by 'postcommit_event'
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−  
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−  - server.hook.set_operation(), replaced by
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−    Operation.get_instance(...).add_data()
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−  
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−  - View.div_id(), View.div_class() and View.create_url()
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−  
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−  - `*VComponent` classes
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−  
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−  - in forms, Field.value() and Field.help() must take the form and
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−    the field itself as arguments
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−  
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−  - form.render() must get `w` as a named argument, and
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−    renderer.render() must take `w` as first argument
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−  
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−  - in breadcrumbs, the optional `recurs` argument must be a set, not
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−    False
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−  
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−  - cubicweb.web.views.idownloadable.{download_box,IDownloadableLineView}
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−  
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−  - primary views no longer have `render_entity_summary` and `summary`
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−    methods
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−  
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−  - WFHistoryVComponent's `cell_call` method is replaced by
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−    `render_body`
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−  
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−  - cubicweb.dataimport.ObjectStore.add(), replaced by create_entity
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−  
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−  - ManageView.{folders,display_folders}