Update of /cvsroot/koha/koha/C4
In directory usw-pr-cvs1:/tmp/cvs-serv31873/koha/C4
Added Files:
BookShelves.pm
Log Message:
Start of code to implement virtual bookshelves in Koha.
--- NEW FILE ---
package C4::BookShelves; #asummes C4/BookShelves
#
# $Header: /cvsroot/koha/koha/C4/BookShelves.pm,v 1.1 2001/02/07 20:27:17 tonnesen Exp $
#
#requires DBI.pm to be installed
use strict;
require Exporter;
use DBI;
use C4::Database;
use C4::Circulation::Circ2;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
# set the version for version checking
$VERSION = 0.01;
@ISA = qw(Exporter);
@EXPORT = qw(&GetShelfList &GetShelfContents &AddToShelf &RemoveFromShelf &AddShelf &RemoveShelf);
sub AddShelf {
}
sub RemoveShelf {
}
%EXPORT_TAGS = ( ); # eg: TAG => [ qw!name1 name2! ],
# your exported package globals go here,
# as well as any optionally exported functions
@EXPORT_OK = qw($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;
my $dbh=C4Connect();
sub GetShelfList {
my $sth=$dbh->prepare("select shelfnumber,shelfname from bookshelf");
$sth->execute;
my %shelflist;
while (my ($shelfnumber, $shelfname) = $sth->fetchrow) {
my $sti=$dbh->prepare("select count(*) from shelfcontents where shelfnumber=$shelfnumber");
$sti->execute;
my ($count) = $sti->fetchrow;
$shelflist{$shelfnumber}->{'shelfname'}=$shelfname;
$shelflist{$shelfnumber}->{'count'}=$count;
}
return(\%shelflist);
}
sub GetShelfContents {
my ($env, $shelfnumber) = @_;
my @itemlist;
my $sth=$dbh->prepare("select itemnumber from shelfcontents where shelfnumber=$shelfnumber order by itemnumber");
$sth->execute;
while (my ($itemnumber) = $sth->fetchrow) {
my ($item) = getiteminformation($env, $itemnumber, 0);
push (@itemlist, $item);
}
return (\@itemlist);
}
sub AddToShelf {
my ($env, $itemnumber, $shelfnumber) = @_;
my $sth=$dbh->prepare("select * from shelfcontents where shelfnumber=$shelfnumber and itemnumber=$itemnumber");
$sth->execute;
if ($sth->rows) {
# already on shelf
} else {
$sth=$dbh->prepare("insert into shelfcontents (shelfnumber, itemnumber, flags) values ($shelfnumber, $itemnumber, 0)");
$sth->execute;
}
}
sub RemoveFromShelf {
my ($env, $itemnumber, $shelfnumber) = @_;
my $sth=$dbh->prepare("delete from shelfcontents where shelfnumber=$shelfnumber and itemnumber=$itemnumber");
$sth->execute;
}
sub AddShelf {
my ($env, $shelfname) = @_;
my $q_shelfname=$dbh->quote($shelfname);
my $sth=$dbh->prepare("select * from bookshelf where shelfname=$q_shelfname");
$sth->execute;
if ($sth->rows) {
return(0, "Shelf \"$shelfname\" already exists");
} else {
$sth=$dbh->prepare("insert into bookshelf (shelfname) values ($q_shelfname)");
$sth->execute;
return (1, "Done");
}
}
sub RemoveShelf {
my ($env, $shelfnumber) = @_;
my $sth=$dbh->prepare("select count(*) from shelfcontents where shelfnumber=$shelfnumber");
$sth->execute;
my ($count)=$sth->fetchrow;
if ($count) {
return (0, "Shelf has $count items on it");
} else {
$sth=$dbh->prepare("delete from bookshelf where shelfnumber=$shelfnumber");
$sth->execute;
return (1, "Done");
}
}
END { } # module clean-up code here (global destructor)
#
# $Log: BookShelves.pm,v $
# Revision 1.1 2001/02/07 20:27:17 tonnesen
# Start of code to implement virtual bookshelves in Koha.
#
#
