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#-*- perl -*-
#
# Copyright (C) 2000,2001 Ken'ichi Fukamachi
# All rights reserved.
#
# $FML: toymodel.pm,v 1.7 2001/12/24 07:44:35 fukachan Exp $
#
package IO::Adapter::SQL::toymodel;
use strict;
use vars qw(@ISA @EXPORT @EXPORT_OK $AUTOLOAD);
use Carp;
my $debug = 0;
=head1 NAME
IO::Adapter::SQL::toymodel - SQL statement dependent on toymodel
=head1 SYNOPSIS
use IO::Adapter::SQL::toymodel;
$obj = new IO::Adapter::SQL::toymodel;
=head1 DESCRIPTION
SQL::Schema modules hold SQL statement dependent on each specific
model.
=head1 METHODS
=cut
# Descriptions: add $addr
# create an SQL query and exetute it
# Arguments: OBJ($self) STR($addr)
# Side Effects: update DB via SQL
# Return Value: STR
sub add
{
my ($self, $addr) = @_;
print STDERR "add( $addr )\n" if $debug;
my $query = $self->_build_sql_query({
query => 'add',
address => $addr,
});
$self->execute({ query => $query });
}
# Descriptions: delete $addr
# create an SQL query and exetute it
# Arguments: OBJ($self) STR($addr)
# Side Effects: update DB via SQL
# Return Value: STR
sub delete
{
my ($self, $addr) = @_;
print STDERR "delete( $addr )\n" if $debug;
my $query = $self->_build_sql_query({
query => 'delete',
address => $addr,
});
$self->execute({ query => $query });
}
# Descriptions: get one entry from DBMS
# create an SQL query and exetute it
# Arguments: OBJ($self) HASH_REF($args)
# Side Effects: update DB via SQL
# Return Value: STR
sub fetch_all
{
my ($self, $args) = @_;
my $query = $self->_build_sql_query({
query => 'get_next_value',
});
$self->execute({ query => $query });
}
# Descriptions: search, md = map dependent
# create an SQL query and exetute it
# Arguments: OBJ($self) STR($regexp) HASH_REF($args)
# Side Effects: update DB via SQL
# Return Value: STR or ARRAY_REF
sub md_find
{
my ($self, $regexp, $args) = @_;
my $case_sensitive = $args->{ case_sensitive } ? 1 : 0;
my $show_all = $args->{ all } ? 1 : 0;
my (@buf, $x);
my $query = $self->_build_sql_query({
query => 'search',
regexp => $regexp,
});
$self->execute({ query => $query });
if (defined $self->{ _res }) {
my ($row);
while (defined ($row = $self->{ _res }->fetchrow_arrayref)) {
$x = join(" ", @$row);
if ($show_all) {
if ($case_sensitive) {
push(@buf, $x) if $x =~ /$regexp/;
}
else {
push(@buf, $x) if $x =~ /$regexp/i;
}
}
else {
if ($case_sensitive) {
last if $x =~ /$regexp/;
}
else {
last if $x =~ /$regexp/i;
}
}
}
}
else {
return undef;
}
$show_all ? \@buf : $x;
}
# Descriptions: build SQL statement, (not execute but build SQL string only)
#
# $args = {
# query => 'add',
# address => 'rudo@nuinui.net',
# _params => {
# ml_name => 'elena',
# file => 'actives',
# },
# }
#
# Arguments: OBJ($self) HASH_REF($args)
# Side Effects: none
# Return Value: STR(SQL statement)
sub _build_sql_query
{
my ($self, $args) = @_;
my $query = $args->{ query };
my $address = $args->{ address };
# inherit parameter from object
my $ml_name = $self->{ _params }->{ ml_name };
my $file = $self->{ _params }->{ file };
my $table = $self->{ _table };
print STDERR "_build_sql_query( query=$query )\n" if $debug;
if ($query eq 'add') {
"insert into $table values ('$ml_name', '$file', '$address', 0, 0)";
}
elsif ($query eq 'delete') {
"delete from $table where ml='$ml_name' and address='$address'";
}
elsif ($query eq 'search') {
my $p = $args->{ 'regexp' };
"select address from $table where address like '\%${p}\%'";
}
else {
"select address from $table where ml='$ml_name' and file='$file'";
}
}
=head1 AUTHOR
Ken'ichi Fukamchi
=head1 COPYRIGHT
Copyright (C) 2001 Ken'ichi Fukamchi
All rights reserved. This program is free software; you can
redistribute it and/or modify it under the same terms as Perl itself.
=head1 HISTORY
IO::Adapter appeared in fml5 mailing list driver package.
See C<http://www.fml.org/> for more details.
=cut
1;
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