[Cubicweb] [ANNOUNCE] cubicweb 3.18.0 released

[Julien Cristau]

Hi,

I'm glad to announce the release of CubicWeb 3.18.0.  Thanks to all
contributors for this new release.

Here's an overview of major changes from 3.17.0 (also available at [0],
and in doc/3.18.rst in the cubicweb source tree).  More details can be
found at [1].

[0] https://www.cubicweb.org/blogentry/3425860
[1] https://www.cubicweb.org/project/cubicweb/3.18.0

•   NOTE: The migration script from earlier versions does not handle
    sqlite nor mysql instances.

New functionalities
-------------------

•   add a security debugging tool (see #2920304)

•   introduce an add permission on attributes, to be interpreted at
    entity creation time only and allow the implementation of complex
    update rules that don't block entity creation (before that the
    update attribute permission was interpreted at entity creation and
    update time) (see #2965518)

•   the primary view display controller (uicfg) now has a
    set_fields_order method similar to the one available for forms

•   new method ResultSet.one(col=0) to retrieve a single entity and
    enforce the result has only one row (see #3352314)

•   new method RequestSessionBase.find to look for entities (see
    #3361290)

•   the embedded jQuery copy has been updated to version 1.10.2, and
    jQuery UI to version 1.10.3.

•   initial support for wsgi for the debug mode, available through the
    new wsgi cubicweb-ctl command, which can use either python's builtin
    wsgi server or the werkzeug module if present.

•   a rql-table directive is now available in ReST fields

•   cubicweb-ctl upgrade can now generate the static data resource
    directory directly, without a manual call to gen-static-datadir.

API changes
-----------

•   not really an API change, but the entity write permission checks are
    now systematically deferred to an operation, instead of a) trying in
    a hook and b) if it failed, retrying later in an operation

•   The default value storage for attributes is no longer String, but
    Bytes. This opens the road to storing arbitrary python objects, e.g.
    numpy arrays, and fixes a bug where default values whose truth value
    was False were not properly migrated.

•   symmetric relations are no more handled by an rql rewrite but are
    now handled with hooks (from the activeintegrity category); this may
    have some consequences for applications that do low-level database
    manipulations or at times disable (some) hooks.

•   unique together constraints (multi-columns unicity constraints) get
    a name attribute that maps the CubicWeb contraint entities to the
    corresponding backend index.

•   BreadCrumbEntityVComponent's open_breadcrumbs method now includes
    the first breadcrumbs separator

•   entities can be compared for equality and hashed

•   the on_fire_transition predicate accepts a sequence of possible
    transition names

•   the GROUP_CONCAT rql aggregate function no longer repeats duplicate
    values, on the sqlite and postgresql backends

Deprecation
-----------

•   pyrorql sources have been deprecated. Multisource will be fully
    dropped in the next version. If you are still using pyrorql, switch
    to datafeed NOW!

•   the old multi-source system

•   find_one_entity and find_entities in favor of find (see #3361290)

•   the TmpFileViewMixin and TmpPngView classes (see #3400448)

Deprecated Code Drops
---------------------

•   ldapuser have been dropped; use ldapfeed now (see #2936496)

•   action GotRhythm was removed, make sure you do not import it in your
    cubes (even to unregister it) (see #3093362)

•   all 3.8 backward compat is gone

•   all 3.9 backward compat (including the javascript side) is gone

•   the twisted (web-only) instance type has been removed

Cheers,
Julien
-- 
Julien Cristau          <julien.cristau at logilab.fr>
Logilab		        http://www.logilab.fr/
Informatique scientifique & gestion de connaissances
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