author | Laurent Peuch <cortex@worlddomination.be> |
Thu, 21 Feb 2019 18:56:42 +0100 | |
branch | 3.26 |
changeset 12464 | d26382fc15d8 |
parent 11844 | 8fb3ab72d7a9 |
permissions | -rw-r--r-- |
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3.24 (2 November 2016) |
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====================== |
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New features |
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------------ |
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* Various bits of a CubicWeb application configuration can be now be |
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overridden through environments variables matching configuration option |
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names prefixed by ``CW_`` (for instance ``CW_BASE_URL``). |
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* Cubes are now standard Python packages named as ``cubicweb_<cubename>``. |
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They are not anymore installed in ``<prefix>/share/cubicweb/cubes``. Their |
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discovery by CubicWeb is handled by a new setuptools entry point |
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``cubicweb.cubes``. A backward compatibility layer is kept for "legacy" |
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cubes. |
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* Pyramid support made it into CubicWeb core. Applications that use it |
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should now declare the `cubicweb[pyramid]` dependency instead of |
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`cubicweb-pyramid`. |
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* New `NullStore` class in ``cubicweb.dataimport.stores`` as new base class for |
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every store, and allowing to test your dataimport chain without actually |
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importing anything. |
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Major changes |
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------------- |
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There has been several important changes to the core internals of CubicWeb: |
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* Dropped `asource` and `extid` columns from the `entities` table as well as the |
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index on the `type` column, for a sensible optimization on both massive data |
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insertion and database size / index rebuilding. |
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* Dropped the `moved_entities` table and related mecanism to remember that an |
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entity has been moved from a source to the system database - this is now the |
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responsability of source's parser to detect this (usually by remembering its |
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original external id as `cwuri`). |
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* Dropped the original 'give me an eid for this extid, but call me back on |
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another line if it has to be created' mecanism on which the ``cwxmlparser`` was |
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relying, in favor of parsers using the dataimport API. This includes dropping |
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the ``cwxmlparser``. If you're using it, you'll have to write a specific |
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parser, examples to come. |
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* Dropped source mapping handling (schema, views, logic) with its client |
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the ``cwxmlparser``. This is not worth the burden, specific parsers should be |
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preferred. |
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The above changes lead to the following API changes: |
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* `req.entity_metas(eid)` doesn't return anymore a 'type' nor 'source' keys, use |
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`req.entity_type(eid)` instead or 'cw_source' relation to get those |
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information, |
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* deprecated `entity.cw_metainformation()`, which doesn't return anymore it's |
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'source' key, |
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* dropped `repository.type_and_source_from_eid(eid, cnx)`, |
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`repository.extid2eid(...)` and `source.eid_type_source(cnx, eid)`, |
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* dropped `source.support_entity(etype)` and `source.support_relation(rtype)`, |
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* dropped 'cw_source' key from default JSON representation of an entity, |
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* dropped `source_uris()` and `handle_deletion(...)` method from datafeed parser |
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base class, deletion of entities is now the responsability of specific |
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implementation (see ``ldapparser`` for example), |
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* entities from external source are always displayed in the UI with a link |
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to the local entity, not the original one simplifying `entity.absolute_url()` |
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implementation and allowing to drop `use_ext_eid` argument of |
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`entity.rest_path()` (though it's still supported for backward compat). |
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Changes to the massive store |
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----------------------------- |
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Several improvments have been done to ``cubicweb.dataimport.massive_store``, |
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with among the more important ones: |
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* Extended store API to provide more control to end-users: |
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`fill_entities_table`, `fill_relation_table`, `fill_meta_relation_table`. |
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* Dropped `on_commit` / `on_rollback` arguments of the constructor. |
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* Use a slave specific temporary table for entities insertion as for relations |
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(should improve concurrency when using in master/slaves mode). |
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* Delay dropping of constraint to the `finish` method, avoiding performance |
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problem that was occuring because indexes were dropped at store creation time. |
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* Consider the given metadata generator when looking for which metadata tables |
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should have their constraints dropped. |
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* Don't drop index on `entities.eid`, it's too costly to rebuild on database |
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with some million of entities. |