Oleg Broytmann wrote: > Hello! > > I'm pleased to announce the 0.8.0 release of SQLObject. > > > What is SQLObject > ================= > > SQLObject is an object-relational mapper. Your database tables are described > as classes, and rows are instances of those classes. SQLObject is meant to be > easy to use and quick to get started with. > > SQLObject supports a number of backends: MySQL, PostgreSQL, SQLite, and > Firebird. It also has newly added support for Sybase, MSSQL and MaxDB (also > known as SAPDB). > > > Where is SQLObject > ================== > > Site: > http://sqlobject.org > > Development: > http://sqlobject.org/devel/ > > Mailing list: > https://lists.sourceforge.net/mailman/listinfo/sqlobject-discuss > > Archives: > http://news.gmane.org/gmane.comp.python.sqlobject > > Download: > http://cheeseshop.python.org/pypi/SQLObject/0.8.0 > > News and changes: > http://sqlobject.org/News.html > > > What's New > ========== > > News since 0.7 > -------------- > > Features & Interface > -------------------- > > * It is now possible to create tables that reference each other. > Constraints (in the DBMSes that support constraints) are added after the > tables have been created. > > * Added ``createSQL`` as an option for sqlmeta. Here you can add > related SQL you want executed by sqlobject-admin create after table > creation. createSQL expects a string, list, or dictionary. If using > a dictionary the key should be a dbName value (ex. 'postgres') and > the value should be a string or list. Examples in > sqlobject/tests/test_sqlobject_admin.py or at > <http://sqlobject.org/sqlobject-admin.html#the-create-command> > > * Added method ``sqlhub.doInTransaction(callable, *args, **kwargs)``, > to be used like:: > > sqlhub.doInTransaction(process_request, os.environ) > > This will run ``process_request(os.environ)``. The return > value will be preserved. > > * Added method ``.getOne([default])`` to ``SelectResults`` (these are > the objects returned by ``.select()`` and ``.selectBy()``). This > returns a single object, when the query is expected to return only > one object. The single argument is the value to return when zero > results are found (more than one result is always an error). If no > default is given, it is an error if no such object exists. > > * Added a WSGI middleware (in ``sqlobject.wsgi_middleware``) for > configuring the database for the request. Also handles > transactions. Available as ``egg:SQLObject`` in Paste Deploy > configuration files. > > * New joins! ManyToMany and OneToMany; not fully documented yet, but still > more sensible and smarter. > > * SELECT FOR UPDATE > > * New module dberrors.py - a hierarchy of exceptions. Translation of DB API > module's exceptions to the new hierarchy is performed for SQLite and MySQL. > > * SQLiteConnection got a new keyword "factory" - a name or a reference to > a factory function that returns a connection class; useful for > implementing functions or aggregates. See test_select.py and > test_sqlite_factory.py for examples. > > * SQLObject now disallows columns with names that collide with existing > variables and methods, such as "_init", "expire", "set" and so on. > > Small Features > -------------- > > * Configurable client character set (encoding) for MySQL. > > * Added a close option to .commit(), so you can close the transaction as > you commit it. > > * DecimalValidator. > > * Added .expireAll() methods to sqlmeta and connection objects, to expire > all instances in those cases. > > * String IDs. > > * FOREIGN KEY for MySQL. > > * Support for sqlite3 (a builtin module in Python 2.5). > > * SelectResults cannot be queried for truth value; in any case it was > meaningless - the result was always True; now __nonzero__() raises > NotImplementedError in case one tries bool(MyTable.select()) or > "if MyTable.select():..." > > * With empty parameters AND() and OR() returns None. > > * Allows to use set/frozenset sets/Set/ImmutableSet sets as sequences > passed to the IN operator. > > * ID columns are now INT UNSIGNED for MySQL. > > Bug Fixes > --------- > > * Fixed problem with sqlite and threads; connections are no longer shared > between threads for sqlite (except for :memory:). > > * The reference loop between SQLObject and SQLObjectState eliminated using > weak references. > > * Another round of bugfixes for MySQL errors 2006 and 2013 (SERVER_GONE, > SERVER_LOST). > > * Fixed a bug in MSSQLConnection caused by column names being unicode. > > * Fixed a bug in FirebirdConnection caused by column names having trailing > spaces. > > * Order by several columns with inheritance. > > * Fixed aggregators and accumulators with inheritance. > > For a more complete list, please see the news: > http://sqlobject.org/News.html > > Oleg.
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