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diff --git a/FS/FS/usage_class.pm b/FS/FS/usage_class.pm
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+package FS::usage_class;
+
+use strict;
+use vars qw( @ISA );
+use FS::Record qw( qsearch qsearchs );
+
+@ISA = qw(FS::Record);
+
+=head1 NAME
+
+FS::usage_class - Object methods for usage_class records
+
+=head1 SYNOPSIS
+
+  use FS::usage_class;
+
+  $record = new FS::usage_class \%hash;
+  $record = new FS::usage_class { 'column' => 'value' };
+
+  $error = $record->insert;
+
+  $error = $new_record->replace($old_record);
+
+  $error = $record->delete;
+
+  $error = $record->check;
+
+=head1 DESCRIPTION
+
+An FS::usage_class object represents a usage class.  Every rate detail
+(see L<FS::rate_detail>) has, optionally, a usage class.  FS::usage_class
+inherits from FS::Record.  The following fields are currently supported:
+
+=over 4
+
+=item classnum
+
+Primary key (assigned automatically for new usage classes)
+
+=item classname
+
+Text name of this usage class
+
+=item disabled
+
+Disabled flag, empty or 'Y'
+
+
+=back
+
+=head1 METHODS
+
+=over 4
+
+=item new HASHREF
+
+Creates a new usage class.  To add the usage class to the database,
+see L<"insert">.
+
+Note that this stores the hash reference, not a distinct copy of the hash it
+points to.  You can ask the object for a copy with the I<hash> method.
+
+=cut
+
+sub table { 'usage_class'; }
+
+=item insert
+
+Adds this record to the database.  If there is an error, returns the error,
+otherwise returns false.
+
+=cut
+
+=item delete
+
+Delete this record from the database.
+
+=cut
+
+=item replace OLD_RECORD
+
+Replaces the OLD_RECORD with this one in the database.  If there is an error,
+returns the error, otherwise returns false.
+
+=cut
+
+=item check
+
+Checks all fields to make sure this is a valid usage class.  If there is
+an error, returns the error, otherwise returns false.  Called by the insert
+and replace methods.
+
+=cut
+
+sub check {
+  my $self = shift;
+
+  my $error = 
+    $self->ut_numbern('classnum')
+    || $self->ut_text('classname')
+    || $self->ut_enum('disabled', [ '', 'Y' ])
+  ;
+  return $error if $error;
+
+  $self->SUPER::check;
+}
+
+sub _populate_initial_data {
+  my ($class, %opts) = @_;
+
+  foreach ("Intrastate", "Interstate", "International") {
+    my $object = $class->new( { 'classname' => $_ } );
+    my $error = $object->insert;
+    die "error inserting $class into database: $error\n"
+      if $error;
+  }
+
+  '';
+
+}
+
+sub _upgrade_data {
+  my $class = shift;
+
+  return $class->_populate_initial_data(@_)
+    unless scalar( qsearch( 'usage_class', {} ) );
+
+  '';
+
+}
+
+=back
+
+=head1 BUGS
+
+=head1 SEE ALSO
+
+L<FS::Record>, schema.html from the base documentation.
+
+=cut
+
+1;
+