kumara/C4/Database.pm
1999-11-10 22:32:15 +00:00

96 lines
2 KiB
Perl
Executable file

package C4::Database; #asummes C4/Database
#requires DBI.pm to be installed
#uses DBD:Pg
use strict;
require Exporter;
use DBI;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
# set the version for version checking
$VERSION = 0.01;
@ISA = qw(Exporter);
@EXPORT = qw(&C4Connect &sqlinsert &getmax);
%EXPORT_TAGS = ( ); # eg: TAG => [ qw!name1 name2! ],
# your exported package globals go here,
# as well as any optionally exported functions
@EXPORT_OK = qw($Var1 %Hashit);
# non-exported package globals go here
use vars qw(@more $stuff);
# initalize package globals, first exported ones
my $Var1 = '';
my %Hashit = ();
# then the others (which are still accessible as $Some::Module::stuff)
my $stuff = '';
my @more = ();
# all file-scoped lexicals must be created before
# the functions below that use them.
# file-private lexicals go here
my $priv_var = '';
my %secret_hash = ();
# here's a file-private function as a closure,
# callable as &$priv_func; it cannot be prototyped.
my $priv_func = sub {
# stuff goes here.
};
# make all your functions, whether exported or not;
sub C4Connect {
my $dbname="c4";
my $dbh = DBI->connect("dbi:Pg:dbname=$dbname", "chris", "");
return $dbh;
}
sub sqlinsert {
my ($table,%data)=@_;
my $dbh=C4Connect;
my $query="INSERT INTO $table \(";
while (my ($key,$value) = each %data){
if ($key ne 'type'){
$query=$query."$key,";
}
}
$query=~ s/\,$/\)/;
$query=$query." VALUES (";
while (my ($key,$value) = each %data){
if ($key ne 'type'){
$query=$query."'$value',";
}
}
$query=~ s/\,$/\)/;
print $query;
my $sth=$dbh->prepare($query);
$sth->execute;
$sth->finish;
$dbh->disconnect;
}
sub getmax {
my ($table,$item)=@_;
my $dbh=C4Connect;
my $sth=$dbh->prepare("Select max($item) from $table");
$sth->execute;
my $data=$sth->fetchrow_hashref;
$sth->finish;
$dbh->disconnect;
return($data);
}
END { } # module clean-up code here (global destructor)