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htables is a database library for storing mapping objects in a relational database.

Project description

HTables is a library for storing string-to-string mapping objects in a database. Two backends are supported so far: ~htables.PostgresqlDB and ~htables.SqliteDB.

>>> import htables
>>> db = htables.SqliteDB(':memory:')
>>> with db.session() as dbs:
...     dbs['tweet'].create_table()
...     dbs['tweet'].new(text="Hello world!")
...     dbs.commit()

Tables are collections of Rows. A row is basically a dictionary with an extra id property. Its keys and values must be strings.

>>> with db.session() as dbs:
...     tweet = dbs['tweet'].find_first()
...     tweet['author'] = '1337 h4x0r'
...     dbs.commit()

There are many ways of retrieving rows. The following all fetch the same record:

>>> with db.session() as dbs:
...     tweet_table = dbs['tweet']
...     [tweet] = list(tweet_table.find())
...     [tweet] = list(tweet_table.find(author='1337 h4x0r'))
...     tweet = tweet_table.find_first()
...     tweet = tweet_table.find_single()
...     tweet = tweet_table.get(1)

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