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.\"
.IX Title "Jifty::Model::Metadata 3pm"
.TH Jifty::Model::Metadata 3pm "2010-12-08" "perl v5.14.2" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Jifty::Model::Metadata \- Tracks Jifty\-related metadata
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&  my $app = Jifty\->new(config_file => "$ProjectRoot/etc/config.yml");
\&  my $application_version = Jifty::Model::Metadata\->load("application_db_version");
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
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.
.SS "table"
.IX Subsection "table"
Each schema is stored in the table \f(CW\*(C`_jifty_metadata\*(C'\fR.
.SS "since"
.IX Subsection "since"
The metadata table first appeared in Jifty version 0.60427
.SS "load \s-1KEY\s0"
.IX Subsection "load KEY"
Fetches the given \f(CW\*(C`KEY\*(C'\fR from the metadata store.  Returns undef if
such a key cannot be found.
.SS "store \s-1KEY\s0 => \s-1VALUE\s0"
.IX Subsection "store KEY => VALUE"
Stores the given \f(CW\*(C`KEY\*(C'\fR in the database, overwriting the previous
value if it existed.