man Tangram::Pg () - Orthogonal Object Persistence in PostgreSQL databases

NAME

Tangram::Pg - Orthogonal Object Persistence in PostgreSQL databases

SYNOPSIS

   use Tangram;
   use Tangram::Pg;


   $schema = Tangram::Pg->schema( $hashref );


   Tangram::Pg->deploy($schema, $dbh);


   $storage = Tangram::Pg->connect( $schema,
      $data_source, $username, $password );


   $storage->disconnect();


   Tangram::Pg->retreat($schema, $dbh);

DESCRIPTION

This is the entry point in the Pg-specific object-relational persistence backend.

This module performs the following:

METHODS

This backend does not add any methods; for a description of available methods, see Tangram::Relational.

ERRATA

Tangram::Storable objects are first encoded with MIME::Base64, because Tangram does not currently have an easy mechanism for calling CWDBI->bind_param() at the appropriate time to flag the column as binary.

Tangram::PerlDump objects are stored as CWBYTEA columns, which as of DBD::Pg 1.31, also do not get correctly escaped by the DBD driver. This also affects the (as-yet not fully functional) Tangram::YAML back-end, which might put CW\ characters into a YAML document.

It is recommended to use the CWstorable type with Tangram::IDBIF for this reason.