doc/changes/3.15.rst
author David Douard <david.douard@logilab.fr>
Fri, 03 Jul 2015 12:18:56 +0200
changeset 10502 bdcd35e575fd
parent 10491 c67bcee93248
child 10504 3755cd64fff8
permissions -rw-r--r--
[doc] reformat changes files headers to remove the "what's new" phrasing and add the publication date instead. Related to #4832808
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3.15 (12/04/2012)
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=================
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New functionnalities
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--------------------
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* Add Zmq server, based on the cutting edge ZMQ (http://www.zeromq.org/) socket
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  library.  This allows to access distant instance, in a similar way as Pyro.
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* Publish/subscribe mechanism using ZMQ for communication among cubicweb
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  instances.  The new zmq-address-sub and zmq-address-pub configuration variables
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  define where this communication occurs.  As of this release this mechanism is
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  used for entity cache invalidation.
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* Improved WSGI support. While there is still some caveats, most of the code
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  which was twisted only is now generic and allows related functionalities to work
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  with a WSGI front-end.
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* Full undo/transaction support : undo of modification has eventually been
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  implemented, and the configuration simplified (basically you activate it or not
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  on an instance basis).
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* Controlling HTTP status code used is not much more easier :
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  - `WebRequest` now has a `status_out` attribut to control the response status ;
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  - most web-side exceptions take an optional ``status`` argument.
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API changes
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-----------
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* The base registry implementation has been moved to a new
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  `logilab.common.registry` module (see #1916014). This includes code from :
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  * `cubicweb.vreg` (the whole things that was in there)
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  * `cw.appobject` (base selectors and all).
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  In the process, some renaming was done:
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  * the top level registry is now `RegistryStore` (was `VRegistry`), but that
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    should not impact cubicweb client code ;
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  * former selectors functions are now known as "predicate", though you still use
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    predicates to build an object'selector ;
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  * for consistency, the `objectify_selector` decoraror has hence be renamed to
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    `objectify_predicate` ;
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  * on the CubicWeb side, the `selectors` module has been renamed to
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    `predicates`.
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  Debugging refactoring dropped the more need for the `lltrace` decorator.  There
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  should be full backward compat with proper deprecation warnings.  Notice the
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  `yes` predicate and `objectify_predicate` decorator, as well as the
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  `traced_selection` function should now be imported from the
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  `logilab.common.registry` module.
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* All login forms are now submitted to <app_root>/login. Redirection to requested
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  page is now handled by the login controller (it was previously handle by the
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  session manager).
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* `Publisher.publish` has been renamed to `Publisher.handle_request`. This
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  method now contains generic version of logic previously handled by
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  Twisted. `Controller.publish` is **not** affected.
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Unintrusive API changes
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* New 'ldapfeed' source type, designed to replace 'ldapuser' source with
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  data-feed (i.e. copy based) source ideas.
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* New 'zmqrql' source type, similar to 'pyrorql' but using ømq instead of Pyro.
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* A new registry called `services` has appeared, where you can register
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  server-side `cubicweb.server.Service` child classes. Their `call` method can be
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  invoked from a web-side AppObject instance using new `self._cw.call_service`
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  method or a server-side one using `self.session.call_service`. This is a new
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  way to call server-side methods, much cleaner than monkey patching the
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  Repository class, which becomes a deprecated way to perform similar tasks.
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* a new `ajax-func` registry now hosts all remote functions (i.e. functions
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  callable through the `asyncRemoteExec` JS api). A convenience `ajaxfunc`
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  decorator will let you expose your python function easily without all the
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  appobject standard boilerplate. Backward compatibility is preserved.
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* the 'json' controller is now deprecated in favor of the 'ajax' one.
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* `WebRequest.build_url` can now take a __secure__ argument. When True cubicweb
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  try to generate an https url.
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User interface changes
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----------------------
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A new 'undohistory' view expose the undoable transactions and give access to undo
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some of them.