Jifty::Model::Metadata - Tracks Jifty-related metadata

  my $app = Jifty->new(config_file => "$ProjectRoot/etc/config.yml");
  my $application_version = Jifty::Model::Metadata->load("application_db_version");

Every Jifty application automatically inherits this table, which describes information about the Jifty database. It uses this information to smartly upgrade between application schema versions, as well as versions of Jifty itself, for instance.

Each schema is stored in the table _jifty_metadata.

The metadata table first appeared in Jifty version 0.60427

Fetches the given KEY from the metadata store. Returns undef if such a key cannot be found.

Stores the given KEY in the database, overwriting the previous value if it existed.