Freeside:3:Documentation:Developer/FS/h Common

NAME

FS::h_Common - History table "mixin" common base class

SYNOPSIS

package FS::h_tablename; @ISA = qw( FS::h_Common FS::tablename );

sub table { 'h_table_name'; }

sub insert { return "can't insert history records manually"; } sub delete { return "can't delete history records"; } sub replace { return "can't modify history records"; }

DESCRIPTION

FS::h_Common is intended as a "mixin" base class for history table classes to inherit from.

METHODS

sql_h_search END_TIMESTAMP [ START_TIMESTAMP ]

Returns an a list consisting of the "SELECT", "EXTRA_SQL", SQL fragments, a placeholder for "CACHE_OBJ" and an "AS" SQL fragment, to search for the appropriate history records created before END_TIMESTAMP and (optionally) not deleted before START_TIMESTAMP.

sql_h_searchs END_TIMESTAMP [ START_TIMESTAMP ]

Like sql_h_search, but limited to the single most recent record (before END_TIMESTAMP)

SEE ALSO

FS::Record, schema.html from the base documentation