• NAME
• VERSION
• SYNOPSIS
• DESCRIPTION
  • Backend URL
  • Schema Names
  • Ignored Tables
• SEE ALSO
• AUTHOR
• COPYRIGHT AND LICENSE

NAME

Yancy::Backend::Pg - A backend for Postgres using Mojo::Pg

VERSION

version 1.088

SYNOPSIS

    ### URL string
    use Mojolicious::Lite;
    plugin Yancy => {
        backend => 'pg://user:pass@localhost/mydb',
        read_schema => 1,
    };

    ### Mojo::Pg object
    use Mojolicious::Lite;
    use Mojo::Pg;
    plugin Yancy => {
        backend => { Pg => Mojo::Pg->new( 'postgres:///myapp' ) },
        read_schema => 1,
    };

    ### Hashref
    use Mojolicious::Lite;
    plugin Yancy => {
        backend => {
            Pg => {
                dsn => 'dbi:Pg:dbname',
                username => 'fry',
                password => 'b3nd3r1sgr34t',
            },
        },
        read_schema => 1,
    };

DESCRIPTION

This Yancy backend allows you to connect to a Postgres database to manage the data inside. This backend uses Mojo::Pg to connect to Postgres.

See Yancy::Backend for the methods this backend has and their return values.

Backend URL

The URL for this backend takes the form pg://<user>:<pass>@<host>:<port>/<db>.

Some examples:

    # Just a DB
    pg:///mydb

    # User+DB (server on localhost:5432)
    pg://user@/mydb

    # User+Pass Host and DB
    pg://user:pass@example.com/mydb

Schema Names

The schema names for this backend are the names of the tables in the database.

So, if you have the following schema:

    CREATE TABLE people (
        id SERIAL,
        name VARCHAR NOT NULL,
        email VARCHAR NOT NULL
    );
    CREATE TABLE business (
        id SERIAL,
        name VARCHAR NOT NULL,
        email VARCHAR NULL
    );

You could map that to the following schema:

    {
        backend => 'pg://user@/mydb',
        schema => {
            People => {
                required => [ 'name', 'email' ],
                properties => {
                    id => {
                        type => 'integer',
                        readOnly => 1,
                    },
                    name => { type => 'string' },
                    email => { type => 'string' },
                },
            },
            Business => {
                required => [ 'name' ],
                properties => {
                    id => {
                        type => 'integer',
                        readOnly => 1,
                    },
                    name => { type => 'string' },
                    email => { type => 'string' },
                },
            },
        },
    }

Ignored Tables

By default, this backend will ignore some tables when using read_schema: Tables used by Mojo::Pg::Migrations, DBIx::Class::Schema::Versioned (in case we're co-habitating with a DBIx::Class schema), and all the tables used by the Minion::Backend::Pg Minion backend.

SEE ALSO

Mojo::Pg, Yancy

AUTHOR

Doug Bell <preaction@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2021 by Doug Bell.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.