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A light weight python ORM without models.

Project description

https://img.shields.io/pypi/v/lorm.svg

Lorm is a light weight ORM library for Python, model-less, Django style lookup expressions. It’s suitable for small standalone database script.

Installation

The last stable release is available on PyPI and can be installed with pip:

$ pip install lorm

Example

CREATE TABLE `pets` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `name` varchar(20) NOT NULL DEFAULT '',
  `add_time` datetime DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

Connect to Mysql

>>> c = lorm.mysql_connect('localhost', 3306, 'root', 'root', 'test')

Insert

>>> c.pets.create(name='cat')
1

Query

>>> c.pets.get(id=1)
{u'id': 2, u'name': u'cat'}
>>> c.last_query
select * from pets where id=1 limit 1

Row Style

>>> c.pets.filter(id__lt=10).select('id')[:]
[{u'id': 1}, {u'id': 2}, {u'id': 4}, {u'id': 5}, {u'id': 6}, {u'id': 7}, {u'id': 8}, {u'id': 9}]
>>> c.pets.filter(id__lt=10).values('id')[:]
((1,), (2,), (4,), (5,), (6,), (7,), (8,), (9,))
>>> c.pets.filter(id__lt=10).flat('id')[:]
[1, 2, 4, 5, 6, 7, 8, 9]

Raw SQL

>>> c.fetchall("select * from pets")
((1, u'cat'), (2, u'dog'), (3, u'bird'))

For more examples, see test.py

Features

  • No Model, use table name directly.
  • Auto reconnect
  • Connection pool
  • Django style lookup expressions
  • Threading safe
  • Gevent friendly

Requirements

  • pymysql

Project details


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