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Koha/C4/Reserves2.pm
plg 68924c5e6b New feature from SAN Ouest Provence: ability to reserve a specific item in 
the intranet. The development was made on branch 2.2 by Arnaud Laurin from
Ouest Provence and integrated on HEAD by Pierrick Le Gall from INEO media
system.

New page reserve/request.pl taking a biblionumber as entry point.

New functions:

- C4::Biblio::get_iteminfos_of retrieves item informations for a list of
  itemnumbers

- C4::Biblio::get_biblioiteminfos_of retrieves biblioitem informations for a
  list of biblioitemnumbers

- C4::Biblio::get_itemnumbers_of retrieve the list of itemnumbers related to
  each biblionumber given in argument.

- C4::Circulation::Circ2::get_return_date_of retrieves return date for a
  list of itemnumbers.

- C4::Koha::get_itemtypeinfos_of retrieves the informations related to a
  list of itemtypes.

- C4::Koha::get_branchinfos_of retrieves the informations related to a list
  of branchcodes.

- C4::Koha::get_notforloan_label_of retrives the list of status/label for
  the authorised_values related to notforloan.

- C4::Koha::get_infos_of is the generic function used by all get_*infos_of.

- C4::Reserves2::GetNumberReservesFromBorrower

- C4::Reserves2::GetFirstReserveDateFromItem

Modified functions:

- C4::Reserves2::FindReserves was simplified to be more readable.

The reservation page is reserve/request.pl and is linked from nowhere as
long as zebra is not stable yet on HEAD.
2006-05-17 16:06:23 +00:00

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# -*- tab-width: 8 -*-
# NOTE: This file uses standard 8-character tabs
package C4::Reserves2;
# $Id$
# Copyright 2000-2002 Katipo Communications
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA 02111-1307 USA
use strict;
require Exporter;
use DBI;
use C4::Context;
use C4::Biblio;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
# set the version for version checking
$VERSION = 0.01;
=head1 NAME
C4::Reserves2 - FIXME
=head1 SYNOPSIS
use C4::Reserves2;
=head1 DESCRIPTION
FIXME
=head1 FUNCTIONS
=over 2
=cut
@ISA = qw(Exporter);
# FIXME Take out CalcReserveFee after it can be removed from opac-reserves.pl
@EXPORT = qw(
&FindReserves
&CheckReserves
&CheckWaiting
&CancelReserve
&CalcReserveFee
&FillReserve
&ReserveWaiting
&CreateReserve
&updatereserves
&UpdateReserve
&getreservetitle
&Findgroupreserve
GetFirstReserveDateFromItem
GetNumberReservesFromBorrower
);
# make all your functions, whether exported or not;
=item FindReserves
($count, $results) = &FindReserves($biblionumber, $borrowernumber);
Looks books up in the reserves. C<$biblionumber> is the biblionumber
of the book to look up. C<$borrowernumber> is the borrower number of a
patron whose books to look up.
Either C<$biblionumber> or C<$borrowernumber> may be the empty string,
but not both. If both are specified, C<&FindReserves> looks up the
given book for the given patron. If only C<$biblionumber> is
specified, C<&FindReserves> looks up that book for all patrons. If
only C<$borrowernumber> is specified, C<&FindReserves> looks up all of
that patron's reserves. If neither is specified, C<&FindReserves>
barfs.
For each book thus found, C<&FindReserves> checks the reserve
constraints and does something I don't understand.
C<&FindReserves> returns a two-element array:
C<$count> is the number of elements in C<$results>.
C<$results> is a reference to an array of references of hashes. Each hash
has for keys a list of column from reserves table (see details in function).
=cut
#'
sub FindReserves {
my ($bib, $bor) = @_;
my $dbh = C4::Context->dbh;
my @bind;
# Find the desired items in the reserves
my $query = '
SELECT branchcode,
timestamp AS rtimestamp,
priority,
biblionumber,
borrowernumber,
reservedate,
constrainttype,
found
FROM reserves
WHERE cancellationdate IS NULL
AND (found <> \'F\' OR found IS NULL)
';
if ($bib ne '') {
$query.= '
AND biblionumber = ?
';
push @bind, $bib;
}
if ($bor ne '') {
$query.= '
AND borrowernumber = ?
';
push @bind, $bor;
}
$query.= '
ORDER BY priority
';
my $sth=$dbh->prepare($query);
$sth->execute(@bind);
my @results;
while (my $data = $sth->fetchrow_hashref){
# FIXME - What is this if-statement doing? How do constraints work?
if ($data->{constrainttype} eq 'o') {
$query = '
SELECT biblioitemnumber
FROM reserveconstraints
WHERE biblionumber = ?
AND borrowernumber = ?
AND reservedate = ?
';
my $csth=$dbh->prepare($query);
$csth->execute(
$data->{biblionumber},
$data->{borrowernumber},
$data->{reservedate},
);
my ($bibitemno) = $csth->fetchrow_array;
$csth->finish;
# Look up the book we just found.
my $bdata = bibitemdata($bibitemno);
# Add the results of this latest search to the current
# results.
# FIXME - An 'each' would probably be more efficient.
foreach my $key (keys %$bdata) {
$data->{$key} = $bdata->{$key};
}
}
push @results, $data;
}
$sth->finish;
return($#results+1,\@results);
}
sub GetNumberReservesFromBorrower {
my ($borrowernumber) = @_;
my $dbh = C4::Context->dbh;
my $query = '
SELECT COUNT(*) AS counter
FROM reserves
WHERE borrowernumber = ?
AND cancellationdate IS NULL
AND (found != \'F\' OR found IS NULL)
';
my $sth = $dbh->prepare($query);
$sth->execute($borrowernumber);
my $row = $sth->fetchrow_hashref;
$sth->finish;
return $row->{counter};
}
sub GetFirstReserveDateFromItem {
my ($itemnumber) = @_;
my $dbh = C4::Context->dbh;
my $query = '
SELECT reservedate
FROM reserves
WHERE itemnumber = ?
AND cancellationdate IS NULL
AND (found != \'F\' OR found IS NULL)
';
my $sth = $dbh->prepare($query);
$sth->execute($itemnumber);
my $row = $sth->fetchrow_hashref;
$sth->finish;
return $row->{reservedate};
}
=item CheckReserves
($status, $reserve) = &CheckReserves($itemnumber, $barcode);
Find a book in the reserves.
C<$itemnumber> is the book's item number. C<$barcode> is its barcode.
Either one, but not both, may be false. If both are specified,
C<&CheckReserves> uses C<$itemnumber>.
$itemnubmer can be false, in which case uses the barcode. (Never uses
both. $itemnumber gets priority).
As I understand it, C<&CheckReserves> looks for the given item in the
reserves. If it is found, that's a match, and C<$status> is set to
C<Waiting>.
Otherwise, it finds the most important item in the reserves with the
same biblio number as this book (I'm not clear on this) and returns it
with C<$status> set to C<Reserved>.
C<&CheckReserves> returns a two-element list:
C<$status> is either C<Waiting>, C<Reserved> (see above), or 0.
C<$reserve> is the reserve item that matched. It is a
reference-to-hash whose keys are mostly the fields of the reserves
table in the Koha database.
=cut
#'
sub CheckReserves {
my ($item, $barcode) = @_;
# warn "In CheckReserves: itemnumber = $item";
my $dbh = C4::Context->dbh;
my $sth;
if ($item) {
my $qitem=$dbh->quote($item);
# Look up the item by itemnumber
$sth=$dbh->prepare("SELECT items.biblionumber, items.biblioitemnumber, itemtypes.notforloan
FROM items, biblioitems, itemtypes
WHERE items.biblioitemnumber = biblioitems.biblioitemnumber
AND biblioitems.itemtype = itemtypes.itemtype
AND itemnumber=$qitem");
} else {
my $qbc=$dbh->quote($barcode);
# Look up the item by barcode
$sth=$dbh->prepare("SELECT items.biblionumber, items.biblioitemnumber, itemtypes.notforloan
FROM items, biblioitems, itemtypes
WHERE items.biblioitemnumber = biblioitems.biblioitemnumber
AND biblioitems.itemtype = itemtypes.itemtype
AND barcode=$qbc");
# FIXME - This function uses $item later on. Ought to set it here.
}
$sth->execute;
my ($biblio, $bibitem, $notforloan) = $sth->fetchrow_array;
$sth->finish;
# if item is not for loan it cannot be reserved either.....
return (0, 0) if ($notforloan);
# get the reserves...
# Find this item in the reserves
my ($count, @reserves) = Findgroupreserve($bibitem, $biblio);
# $priority and $highest are used to find the most important item
# in the list returned by &Findgroupreserve. (The lower $priority,
# the more important the item.)
# $highest is the most important item we've seen so far.
my $priority = 10000000;
my $highest;
if ($count) {
foreach my $res (@reserves) {
# FIXME - $item might be undefined or empty: the caller
# might be searching by barcode.
if ($res->{'itemnumber'} == $item) {
# Found it
return ("Waiting", $res);
} else {
# See if this item is more important than what we've got
# so far.
if ($res->{'priority'} != 0 && $res->{'priority'} < $priority) {
$priority = $res->{'priority'};
$highest = $res;
}
}
}
}
# If we get this far, then no exact match was found. Print the
# most important item on the list. I think this tells us who's
# next in line to get this book.
if ($highest) { # FIXME - $highest might be undefined
$highest->{'itemnumber'} = $item;
return ("Reserved", $highest);
} else {
return (0, 0);
}
}
=item CancelReserve
&CancelReserve($biblionumber, $itemnumber, $borrowernumber);
Cancels a reserve.
Use either C<$biblionumber> or C<$itemnumber> to specify the item to
cancel, but not both: if both are given, C<&CancelReserve> does
nothing.
C<$borrowernumber> is the borrower number of the patron on whose
behalf the book was reserved.
If C<$biblionumber> was given, C<&CancelReserve> also adjusts the
priorities of the other people who are waiting on the book.
=cut
#'
sub CancelReserve {
my ($biblio, $item, $borr) = @_;
my $dbh = C4::Context->dbh;
#warn "In CancelReserve";
if (($item and $borr) and (not $biblio)) {
# removing a waiting reserve record....
# update the database...
my $sth = $dbh->prepare("update reserves set cancellationdate = now(),
found = Null,
priority = 0
where itemnumber = ?
and borrowernumber = ?");
$sth->execute($item,$borr);
$sth->finish;
}
if (($biblio and $borr) and (not $item)) {
# removing a reserve record....
# get the prioritiy on this record....
my $priority;
my $sth=$dbh->prepare("SELECT priority FROM reserves
WHERE biblionumber = ?
AND borrowernumber = ?
AND cancellationdate is NULL
AND (found <> 'F' or found is NULL)");
$sth->execute($biblio,$borr);
($priority) = $sth->fetchrow_array;
$sth->finish;
# update the database, removing the record...
$sth = $dbh->prepare("update reserves set cancellationdate = now(),
found = Null,
priority = 0
where biblionumber = ?
and borrowernumber = ?
and cancellationdate is NULL
and (found <> 'F' or found is NULL)");
$sth->execute($biblio,$borr);
$sth->finish;
# now fix the priority on the others....
fixpriority($priority, $biblio);
}
}
=item FillReserve
&FillReserve($reserve);
Fill a reserve. If I understand this correctly, this means that the
reserved book has been found and given to the patron who reserved it.
C<$reserve> specifies the reserve to fill. It is a reference-to-hash
whose keys are fields from the reserves table in the Koha database.
=cut
#'
sub FillReserve {
my ($res) = @_;
my $dbh = C4::Context->dbh;
# fill in a reserve record....
# FIXME - Remove some of the redundancy here
my $biblio = $res->{'biblionumber'}; my $qbiblio =$biblio;
my $borr = $res->{'borrowernumber'};
my $resdate = $res->{'reservedate'};
# get the priority on this record....
my $priority;
{
my $query = "SELECT priority FROM reserves
WHERE biblionumber = ?
AND borrowernumber = ?
AND reservedate = ?";
my $sth=$dbh->prepare($query);
$sth->execute($qbiblio,$borr,$resdate);
($priority) = $sth->fetchrow_array;
$sth->finish;
}
# update the database...
{
my $query = "UPDATE reserves SET found = 'F',
priority = 0
WHERE biblionumber = ?
AND reservedate = ?
AND borrowernumber = ?";
my $sth = $dbh->prepare($query);
$sth->execute($qbiblio,$resdate,$borr);
$sth->finish;
}
# now fix the priority on the others (if the priority wasn't
# already sorted!)....
unless ($priority == 0) {
fixpriority($priority, $biblio);
}
}
# Only used internally
# Decrements (makes more important) the reserves for all of the
# entries waiting on the given book, if their priority is > $priority.
sub fixpriority {
my ($priority, $biblio) = @_;
my $dbh = C4::Context->dbh;
my ($count, $reserves) = FindReserves($biblio);
foreach my $rec (@$reserves) {
if ($rec->{'priority'} > $priority) {
my $sth = $dbh->prepare("UPDATE reserves SET priority = ?
WHERE biblionumber = ?
AND borrowernumber = ?
AND reservedate = ?");
$sth->execute($rec->{'priority'},$rec->{'biblionumber'},$rec->{'borrowernumber'},$rec->{'reservedate'});
$sth->finish;
}
}
}
# XXX - POD
sub ReserveWaiting {
my ($item, $borr) = @_;
my $dbh = C4::Context->dbh;
# get priority and biblionumber....
my $sth = $dbh->prepare("SELECT reserves.priority as priority,
reserves.biblionumber as biblionumber,
reserves.branchcode as branchcode,
reserves.timestamp as timestamp
FROM reserves,items
WHERE reserves.biblionumber = items.biblionumber
AND items.itemnumber = ?
AND reserves.borrowernumber = ?
AND reserves.cancellationdate is NULL
AND (reserves.found <> 'F' or reserves.found is NULL)");
$sth->execute($item,$borr);
my $data = $sth->fetchrow_hashref;
$sth->finish;
my $biblio = $data->{'biblionumber'};
my $timestamp = $data->{'timestamp'};
# update reserves record....
$sth = $dbh->prepare("UPDATE reserves SET priority = 0, found = 'W', itemnumber = ?
WHERE borrowernumber = ?
AND biblionumber = ?
AND timestamp = ?");
$sth->execute($item,$borr,$biblio,$timestamp);
$sth->finish;
# now fix up the remaining priorities....
fixpriority($data->{'priority'}, $biblio);
my $branchcode = $data->{'branchcode'};
return $branchcode;
}
# XXX - POD
sub CheckWaiting {
my ($borr)=@_;
my $dbh = C4::Context->dbh;
my @itemswaiting;
my $sth = $dbh->prepare("SELECT * FROM reserves
WHERE borrowernumber = ?
AND reserves.found = 'W'
AND cancellationdate is NULL");
$sth->execute($borr);
while (my $data=$sth->fetchrow_hashref) {
push(@itemswaiting,$data);
}
$sth->finish;
return (scalar(@itemswaiting),\@itemswaiting);
}
=item Findgroupreserve
($count, @results) = &Findgroupreserve($biblioitemnumber, $biblionumber);
I don't know what this does, because I don't understand how reserve
constraints work. I think the idea is that you reserve a particular
biblio, and the constraint allows you to restrict it to a given
biblioitem (e.g., if you want to borrow the audio book edition of "The
Prophet", rather than the first available publication).
C<&Findgroupreserve> returns a two-element array:
C<$count> is the number of elements in C<@results>.
C<@results> is an array of references-to-hash whose keys are mostly
fields from the reserves table of the Koha database, plus
C<biblioitemnumber>.
=cut
#'
sub Findgroupreserve {
my ($bibitem,$biblio)=@_;
my $dbh = C4::Context->dbh;
my $sth=$dbh->prepare("SELECT reserves.biblionumber AS biblionumber,
reserves.borrowernumber AS borrowernumber,
reserves.reservedate AS reservedate,
reserves.branchcode AS branchcode,
reserves.cancellationdate AS cancellationdate,
reserves.found AS found,
reserves.reservenotes AS reservenotes,
reserves.priority AS priority,
reserves.timestamp AS timestamp,
reserveconstraints.biblioitemnumber AS biblioitemnumber,
reserves.itemnumber AS itemnumber
FROM reserves LEFT JOIN reserveconstraints
ON reserves.biblionumber = reserveconstraints.biblionumber
WHERE reserves.biblionumber = ?
AND ( ( reserveconstraints.biblioitemnumber = ?
AND reserves.borrowernumber = reserveconstraints.borrowernumber
AND reserves.reservedate =reserveconstraints.reservedate )
OR reserves.constrainttype='a' )
AND reserves.cancellationdate is NULL
AND (reserves.found <> 'F' or reserves.found is NULL)");
$sth->execute($biblio, $bibitem);
my @results;
while (my $data=$sth->fetchrow_hashref){
push(@results,$data);
}
$sth->finish;
return(scalar(@results),@results);
}
# FIXME - A somewhat different version of this function appears in
# C4::Reserves. Pick one and stick with it.
# XXX - POD
sub CreateReserve {
my
($env,$branch,$borrnum,$biblionumber,$constraint,$bibitems,$priority,$notes,$title)= @_;
my $fee=CalcReserveFee($env,$borrnum,$biblionumber,$constraint,$bibitems);
my $dbh = C4::Context->dbh;
my $const = lc substr($constraint,0,1);
my @datearr = localtime(time);
my $resdate =(1900+$datearr[5])."-".($datearr[4]+1)."-".$datearr[3];
#eval {
# updates take place here
if ($fee > 0) {
# print $fee;
my $nextacctno = &getnextacctno($env,$borrnum,$dbh);
my $usth = $dbh->prepare("insert into accountlines
(borrowernumber,accountno,date,amount,description,accounttype,amountoutstanding)
values
(?,?,now(),?,?,'Res',?)");
$usth->execute($borrnum,$nextacctno,$fee,"Reserve Charge - $title",$fee);
$usth->finish;
}
#if ($const eq 'a'){
my $sth = $dbh->prepare("insert into reserves
(borrowernumber,biblionumber,reservedate,branchcode,constrainttype,priority,reservenotes)
values (?,?,?,?,?,?,?)");
$sth->execute($borrnum,$biblionumber,$resdate,$branch,$const,$priority,$notes);
$sth->finish;
#}
if (($const eq "o") || ($const eq "e")) {
my $numitems = @$bibitems;
my $i = 0;
while ($i < $numitems) {
my $biblioitem = @$bibitems[$i];
my $sth = $dbh->prepare("insert into
reserveconstraints
(borrowernumber,biblionumber,reservedate,biblioitemnumber)
values (?,?,?,?)");
$sth->execute($borrnum,$biblionumber,$resdate,$biblioitem);
$sth->finish;
$i++;
}
}
# print $query;
return();
}
# FIXME - A functionally identical version of this function appears in
# C4::Reserves. Pick one and stick with it.
# XXX - Internal use only
# FIXME - opac-reserves.pl need to use it, temporarily put into @EXPORT
sub CalcReserveFee {
my ($env,$borrnum,$biblionumber,$constraint,$bibitems) = @_;
#check for issues;
my $dbh = C4::Context->dbh;
my $const = lc substr($constraint,0,1);
my $sth = $dbh->prepare("SELECT * FROM borrowers,categories
WHERE (borrowernumber = ?)
AND (borrowers.categorycode = categories.categorycode)");
$sth->execute($borrnum);
my $data = $sth->fetchrow_hashref;
$sth->finish();
my $fee = $data->{'reservefee'};
my $cntitems = @->$bibitems;
if ($fee > 0) {
# check for items on issue
# first find biblioitem records
my @biblioitems;
my $sth1 = $dbh->prepare("SELECT * FROM biblio,biblioitems
WHERE (biblio.biblionumber = ?)
AND (biblio.biblionumber = biblioitems.biblionumber)");
$sth1->execute($biblionumber);
while (my $data1=$sth1->fetchrow_hashref) {
if ($const eq "a") {
push @biblioitems,$data1;
} else {
my $found = 0;
my $x = 0;
while ($x < $cntitems) {
if (@$bibitems->{'biblioitemnumber'} == $data->{'biblioitemnumber'}) {
$found = 1;
}
$x++;
}
if ($const eq 'o') {
if ( $found == 1) {
push @biblioitems,$data1;
}
} else {
if ($found == 0) {
push @biblioitems,$data1;
}
}
}
}
$sth1->finish;
my $cntitemsfound = @biblioitems;
my $issues = 0;
my $x = 0;
my $allissued = 1;
while ($x < $cntitemsfound) {
my $bitdata = $biblioitems[$x];
my $sth2 = $dbh->prepare("SELECT * FROM items
WHERE biblioitemnumber = ?");
$sth2->execute($bitdata->{'biblioitemnumber'});
while (my $itdata=$sth2->fetchrow_hashref) {
my $sth3 = $dbh->prepare("SELECT * FROM issues
WHERE itemnumber = ?
AND returndate IS NULL");
$sth3->execute($itdata->{'itemnumber'});
if (my $isdata=$sth3->fetchrow_hashref) {
} else {
$allissued = 0;
}
}
$x++;
}
if ($allissued == 0) {
my $rsth = $dbh->prepare("SELECT * FROM reserves WHERE biblionumber = ?");
$rsth->execute($biblionumber);
if (my $rdata = $rsth->fetchrow_hashref) {
} else {
$fee = 0;
}
}
}
# print "fee $fee";
return $fee;
}
# XXX - Internal use
sub getnextacctno {
my ($env,$bornumber,$dbh)=@_;
my $nextaccntno = 1;
my $sth = $dbh->prepare("select * from accountlines
where (borrowernumber = ?)
order by accountno desc");
$sth->execute($bornumber);
if (my $accdata=$sth->fetchrow_hashref){
$nextaccntno = $accdata->{'accountno'} + 1;
}
$sth->finish;
return($nextaccntno);
}
# XXX - POD
sub updatereserves{
#subroutine to update a reserve
my ($rank,$biblio,$borrower,$del,$branch)=@_;
my $dbh = C4::Context->dbh;
if ($del == 0){
my $sth = $dbh->prepare("Update reserves set priority=?,branchcode=? where
biblionumber=? and borrowernumber=?");
$sth->execute($rank,$branch,$biblio,$borrower);
$sth->finish();
} else {
my $sth=$dbh->prepare("Select * from reserves where biblionumber=? and
borrowernumber=?");
$sth->execute($biblio,$borrower);
my $data=$sth->fetchrow_hashref;
$sth->finish();
$sth=$dbh->prepare("Select * from reserves where biblionumber=? and
priority > ? and cancellationdate is NULL
order by priority") || die $dbh->errstr;
$sth->execute($biblio,$data->{'priority'}) || die $sth->errstr;
while (my $data=$sth->fetchrow_hashref){
$data->{'priority'}--;
my $sth3=$dbh->prepare("Update reserves set priority=?
where biblionumber=? and borrowernumber=?");
$sth3->execute($data->{'priority'},$data->{'biblionumber'},$data->{'borrowernumber'}) || die $sth3->errstr;
$sth3->finish();
}
$sth->finish();
$sth=$dbh->prepare("update reserves set cancellationdate=now() where biblionumber=?
and borrowernumber=?");
$sth->execute($biblio,$borrower);
$sth->finish;
}
}
# XXX - POD
sub UpdateReserve {
#subroutine to update a reserve
my ($rank,$biblio,$borrower,$branch)=@_;
return if $rank eq "W";
return if $rank eq "n";
my $dbh = C4::Context->dbh;
if ($rank eq "del") {
my $sth=$dbh->prepare("UPDATE reserves SET cancellationdate=now()
WHERE biblionumber = ?
AND borrowernumber = ?
AND cancellationdate is NULL
AND (found <> 'F' or found is NULL)");
$sth->execute($biblio, $borrower);
$sth->finish;
} else {
my $sth=$dbh->prepare("UPDATE reserves SET priority = ? ,branchcode = ?, itemnumber = NULL, found = NULL
WHERE biblionumber = ?
AND borrowernumber = ?
AND cancellationdate is NULL
AND (found <> 'F' or found is NULL)");
$sth->execute($rank, $branch, $biblio, $borrower);
$sth->finish;
}
}
# XXX - POD
sub getreservetitle {
my ($biblio,$bor,$date,$timestamp)=@_;
my $dbh = C4::Context->dbh;
my $sth=$dbh->prepare("Select * from reserveconstraints,biblioitems where
reserveconstraints.biblioitemnumber=biblioitems.biblioitemnumber
and reserveconstraints.biblionumber=? and reserveconstraints.borrowernumber
= ? and reserveconstraints.reservedate=? and
reserveconstraints.timestamp=?");
$sth->execute($biblio,$bor,$date,$timestamp);
my $data=$sth->fetchrow_hashref;
$sth->finish;
return($data);
}
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