/ 
Prancer-0.03
River stage one • 3 direct dependents • 3 total dependents
/ Prancer::Database

NAME

Prancer::Database

SYNOPSIS

This module enables connections to a database. NOTE: One should not use this module to connect to the database. Instead, one should use Prancer.

It's important to remember that when running your application in a single- threaded, single-process application server like, say, Twiggy, all users of your application will use the same database connection. If you are using callbacks then this becomes very important. You will want to take care to avoid crossing transactions or to avoid expecting a database connection or transaction to be in the same state it was before a callback.

To use a database connector, add something like this to your configuration file:

database:
    connection-name:
        driver: Prancer::Database::Driver::DriverName
        options:
            username: test
            password: test
            database: test
            hostname: localhost
            port: 5432
            autocommit: true
            charset: utf8
            connection_check_threshold: 10

The "connection-name" can be anything you want it to be. This will be used when requesting a connection from Prancer to determine which connection to return. If only one connection is configured it may be prudent to call it "default" as that is the name that Prancer will look for if no connection name is given. For example:

my $dbh = database;  # returns whatever connection is called "default"
my $dbh = database('foo');  # returns the connection called "foo"

OPTIONS

database

REQUIRED The name of the database to connect to.

username

The username to use when connecting. If this option is not set the default is the user running the application server.

password

The password to use when connectin. If this option is not set the default is to connect with no password.

hostname

The host name of the database server. If this option is not set the default is to connect to localhost.

port

The port number on which the database server is listening. If this option is not set the default is to connect on the database's default port.

autocommit

If set to a true value -- like 1, yes, or true -- this will enable autocommit. If set to a false value -- like 0, no, or false -- this will disable autocommit. By default, autocommit is enabled.

charset

The character set to connect to the database with. If this is set to "utf8" then the database connection will attempt to make UTF8 data Just Work if available.

connection_check_threshold

This sets the number of seconds that must elapse between calls to get a database handle before performing a check to ensure that a database connection still exists and will reconnect if one does not. This handles cases where the database handle hasn't been used in a while and the underlying connection has gone away. If this is not set it will default to 30 seconds.

SEE ALSO

Prancer::Database::Driver::Pg