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Return a ORM datasource object constructed from a connection string or
a number of keyword arguments.
The connection strings follow the conventions for PostgreSQL DSNs:
they consist of keyword=value pairs seperated with whitespace. Keywords
recognized are:
adapter - name of the ORM adapter used. Use the name from the
adapters/ directory.
db - name of the database to connect to
user - Database username
password - Password used for authentication
host - hostname or IP address of the machine the database
runs on (note that there might be a difference if you
use 127.0.0.1 or localhost. The first creating a tcp/ip
connection, the latter a unix/fifo connection. This is
true for at leas pgsql and mysql
debug - if set SQL queries will be printed to stdout (actually
the debug.debug function is called so you can overload
it)
Each of the database backends may define its own keywords. For
instance PostgreSQL will understand each of the original keywords as
aliases. Check the documentation!
Values may not contain spaces.
If you prefer to use the keyword argument syntax, the paramters must
be the key and their arguments the values:
datasource('db=test user=diedrich password=kfjdh')
equals:
datasource(db='test', user='diedrich', password='kfjdh')
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