SQLObject 3.9.0
Oleg Broytman
phd at phdru.name
Tue Dec 15 09:22:43 EST 2020
Hello!
I'm pleased to announce version 3.9.0, the first release
of branch 3.9 of SQLObject.
What's new in SQLObject
=======================
Contributors for this release are:
+ Michael S. Root, Ameya Bapat - ``JSONCol``;
+ Jerry Nance - reported a bug with ``DateTime`` from ``Zope``.
Features
--------
* Add ``JSONCol``: a universal json column that converts simple Python objects
(None, bool, int, float, long, dict, list, str/unicode to/from JSON using
json.dumps/loads. A subclass of StringCol. Requires ``VARCHAR``/``TEXT``
columns at backends, doesn't work with ``JSON`` columns.
* Extend/fix support for ``DateTime`` from ``Zope``.
* Drop support for very old version of ``mxDateTime``
without ``mx.`` namespace.
Drivers
-------
* Support `mariadb <https://pypi.org/project/mariadb/>`_.
CI
--
* Run tests with Python 3.9 at Travis and AppVeyor.
For a more complete list, please see the news:
http://sqlobject.org/News.html
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.
It currently supports MySQL, PostgreSQL and SQLite; connections to other
backends - Firebird, Sybase, MSSQL and MaxDB (also known as SAPDB) - are
lesser debugged).
Python 2.7 or 3.4+ is required.
Where is SQLObject
==================
Site:
http://sqlobject.org
Development:
http://sqlobject.org/devel/
Mailing list:
https://lists.sourceforge.net/mailman/listinfo/sqlobject-discuss
Download:
https://pypi.org/project/SQLObject/3.9.0
News and changes:
http://sqlobject.org/News.html
StackOverflow:
https://stackoverflow.com/questions/tagged/sqlobject
Example
=======
Create a simple class that wraps a table::
>>> from sqlobject import *
>>>
>>> sqlhub.processConnection = connectionForURI('sqlite:/:memory:')
>>>
>>> class Person(SQLObject):
... fname = StringCol()
... mi = StringCol(length=1, default=None)
... lname = StringCol()
...
>>> Person.createTable()
Use the object::
>>> p = Person(fname="John", lname="Doe")
>>> p
<Person 1 fname='John' mi=None lname='Doe'>
>>> p.fname
'John'
>>> p.mi = 'Q'
>>> p2 = Person.get(1)
>>> p2
<Person 1 fname='John' mi='Q' lname='Doe'>
>>> p is p2
True
Queries::
>>> p3 = Person.selectBy(lname="Doe")[0]
>>> p3
<Person 1 fname='John' mi='Q' lname='Doe'>
>>> pc = Person.select(Person.q.lname=="Doe").count()
>>> pc
1
Oleg.
--
Oleg Broytman https://phdru.name/ phd at phdru.name
Programmers don't die, they just GOSUB without RETURN.
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