1 package C4::HoldsQueue;
3 # Copyright 2011 Catalyst IT
5 # This file is part of Koha.
7 # Koha is free software; you can redistribute it and/or modify it
8 # under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3 of the License, or
10 # (at your option) any later version.
12 # Koha is distributed in the hope that it will be useful, but
13 # WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with Koha; if not, see <http://www.gnu.org/licenses>.
20 # FIXME: expand perldoc, explain intended logic
35 use List::Util qw(shuffle);
36 use List::MoreUtils qw(any);
39 use vars qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
48 &UpdateTransportCostMatrix
55 =head2 TransportCostMatrix
57 TransportCostMatrix();
59 Returns Transport Cost Matrix as a hashref <to branch code> => <from branch code> => cost
63 sub TransportCostMatrix {
64 my $dbh = C4::Context->dbh;
65 my $transport_costs = $dbh->selectall_arrayref("SELECT * FROM transport_cost",{ Slice => {} });
67 my $today = dt_from_string();
69 my %transport_cost_matrix;
70 foreach (@$transport_costs) {
71 my $from = $_->{frombranch};
72 my $to = $_->{tobranch};
73 my $cost = $_->{cost};
74 my $disabled = $_->{disable_transfer};
75 $transport_cost_matrix{$to}{$from} = {
77 disable_transfer => $disabled
80 if ( C4::Context->preference("HoldsQueueSkipClosed") ) {
81 $calendars->{$from} ||= Koha::Calendar->new( branchcode => $from );
82 $transport_cost_matrix{$to}{$from}{disable_transfer} ||=
83 $calendars->{$from}->is_holiday( $today );
87 return \%transport_cost_matrix;
90 =head2 UpdateTransportCostMatrix
92 UpdateTransportCostMatrix($records);
94 Updates full Transport Cost Matrix table. $records is an arrayref of records.
95 Records: { frombranch => <code>, tobranch => <code>, cost => <figure>, disable_transfer => <0,1> }
99 sub UpdateTransportCostMatrix {
101 my $dbh = C4::Context->dbh;
103 my $sth = $dbh->prepare("INSERT INTO transport_cost (frombranch, tobranch, cost, disable_transfer) VALUES (?, ?, ?, ?)");
105 $dbh->do("DELETE FROM transport_cost");
106 foreach (@$records) {
107 my $cost = $_->{cost};
108 my $from = $_->{frombranch};
109 my $to = $_->{tobranch};
110 if ($_->{disable_transfer}) {
113 elsif ( !defined ($cost) || ($cost !~ m/(0|[1-9][0-9]*)(\.[0-9]*)?/o) ) {
114 warn "Invalid $from -> $to cost $cost - must be a number >= 0, disabling";
116 $_->{disable_transfer} = 1;
118 $sth->execute( $from, $to, $cost, $_->{disable_transfer} ? 1 : 0 );
122 =head2 GetHoldsQueueItems
124 GetHoldsQueueItems($branch);
126 Returns hold queue for a holding branch. If branch is omitted, then whole queue is returned
130 sub GetHoldsQueueItems {
131 my ($branchlimit) = @_;
132 my $dbh = C4::Context->dbh;
134 my @bind_params = ();
135 my $query = q/SELECT tmp_holdsqueue.*, biblio.author, items.ccode, items.itype, biblioitems.itemtype, items.location, items.enumchron, items.cn_sort, biblioitems.publishercode,biblio.copyrightdate,biblioitems.publicationyear,biblioitems.pages,biblioitems.size,biblioitems.publicationyear,biblioitems.isbn,items.copynumber
137 JOIN biblio USING (biblionumber)
138 LEFT JOIN biblioitems USING (biblionumber)
139 LEFT JOIN items USING ( itemnumber)
142 $query .=" WHERE tmp_holdsqueue.holdingbranch = ?";
143 push @bind_params, $branchlimit;
145 $query .= " ORDER BY ccode, location, cn_sort, author, title, pickbranch, reservedate";
146 my $sth = $dbh->prepare($query);
147 $sth->execute(@bind_params);
149 while ( my $row = $sth->fetchrow_hashref ){
150 my $record = GetMarcBiblio({ biblionumber => $row->{biblionumber} });
152 $row->{subtitle} = [ map { $_->{subfield} } @{ GetRecordValue( 'subtitle', $record, '' ) } ];
153 $row->{parts} = GetRecordValue('parts',$record,'')->[0]->{subfield};
154 $row->{numbers} = GetRecordValue('numbers',$record,'')->[0]->{subfield};
157 # return the bib-level or item-level itype per syspref
158 if (!C4::Context->preference('item-level_itypes')) {
159 $row->{itype} = $row->{itemtype};
161 delete $row->{itemtype};
172 Top level function that turns reserves into tmp_holdsqueue and hold_fill_targets.
177 my $dbh = C4::Context->dbh;
179 $dbh->do("DELETE FROM tmp_holdsqueue"); # clear the old table for new info
180 $dbh->do("DELETE FROM hold_fill_targets");
183 my $total_requests = 0;
184 my $total_available_items = 0;
185 my $num_items_mapped = 0;
188 my $transport_cost_matrix;
189 my $use_transport_cost_matrix = C4::Context->preference("UseTransportCostMatrix");
190 if ($use_transport_cost_matrix) {
191 $transport_cost_matrix = TransportCostMatrix();
192 unless (keys %$transport_cost_matrix) {
193 warn "UseTransportCostMatrix set to yes, but matrix not populated";
194 undef $transport_cost_matrix;
197 unless ($transport_cost_matrix) {
198 $branches_to_use = load_branches_to_pull_from();
201 my $bibs_with_pending_requests = GetBibsWithPendingHoldRequests();
203 foreach my $biblionumber (@$bibs_with_pending_requests) {
205 my $hold_requests = GetPendingHoldRequestsForBib($biblionumber);
206 my $available_items = GetItemsAvailableToFillHoldRequestsForBib($biblionumber, $branches_to_use);
207 $total_requests += scalar(@$hold_requests);
208 $total_available_items += scalar(@$available_items);
210 my $item_map = MapItemsToHoldRequests($hold_requests, $available_items, $branches_to_use, $transport_cost_matrix);
212 my $item_map_size = scalar(keys %$item_map)
215 $num_items_mapped += $item_map_size;
216 CreatePicklistFromItemMap($item_map);
217 AddToHoldTargetMap($item_map);
218 if (($item_map_size < scalar(@$hold_requests )) and
219 ($item_map_size < scalar(@$available_items))) {
220 # DOUBLE CHECK, but this is probably OK - unfilled item-level requests
222 #warn "unfilled requests for $biblionumber";
223 #warn Dumper($hold_requests), Dumper($available_items), Dumper($item_map);
228 =head2 GetBibsWithPendingHoldRequests
230 my $biblionumber_aref = GetBibsWithPendingHoldRequests();
232 Return an arrayref of the biblionumbers of all bibs
233 that have one or more unfilled hold requests.
237 sub GetBibsWithPendingHoldRequests {
238 my $dbh = C4::Context->dbh;
240 my $bib_query = "SELECT DISTINCT biblionumber
244 AND reservedate <= CURRENT_DATE()
247 my $sth = $dbh->prepare($bib_query);
250 my $biblionumbers = $sth->fetchall_arrayref();
252 return [ map { $_->[0] } @$biblionumbers ];
255 =head2 GetPendingHoldRequestsForBib
257 my $requests = GetPendingHoldRequestsForBib($biblionumber);
259 Returns an arrayref of hashrefs to pending, unfilled hold requests
260 on the bib identified by $biblionumber. The following keys
261 are present in each hashref:
272 The arrayref is sorted in order of increasing priority.
276 sub GetPendingHoldRequestsForBib {
277 my $biblionumber = shift;
279 my $dbh = C4::Context->dbh;
281 my $request_query = "SELECT biblionumber, borrowernumber, itemnumber, priority, reserves.branchcode,
282 reservedate, reservenotes, borrowers.branchcode AS borrowerbranch, itemtype
284 JOIN borrowers USING (borrowernumber)
285 WHERE biblionumber = ?
288 AND reservedate <= CURRENT_DATE()
291 my $sth = $dbh->prepare($request_query);
292 $sth->execute($biblionumber);
294 my $requests = $sth->fetchall_arrayref({});
299 =head2 GetItemsAvailableToFillHoldRequestsForBib
301 my $available_items = GetItemsAvailableToFillHoldRequestsForBib($biblionumber, $branches_ar);
303 Returns an arrayref of items available to fill hold requests
304 for the bib identified by C<$biblionumber>. An item is available
305 to fill a hold request if and only if:
308 * it is not withdrawn
309 * it is not marked notforloan
310 * it is not currently in transit
312 * it is not sitting on the hold shelf
313 * it is not damaged (unless AllowHoldsOnDamagedItems is on)
317 sub GetItemsAvailableToFillHoldRequestsForBib {
318 my ($biblionumber, $branches_to_use) = @_;
320 my $dbh = C4::Context->dbh;
321 my $items_query = "SELECT itemnumber, homebranch, holdingbranch, itemtypes.itemtype AS itype
324 if (C4::Context->preference('item-level_itypes')) {
325 $items_query .= "LEFT JOIN itemtypes ON (itemtypes.itemtype = items.itype) ";
327 $items_query .= "JOIN biblioitems USING (biblioitemnumber)
328 LEFT JOIN itemtypes USING (itemtype) ";
330 $items_query .= "WHERE items.notforloan = 0
331 AND holdingbranch IS NOT NULL
334 $items_query .= " AND damaged = 0" unless C4::Context->preference('AllowHoldsOnDamagedItems');
335 $items_query .= " AND items.onloan IS NULL
336 AND (itemtypes.notforloan IS NULL OR itemtypes.notforloan = 0)
337 AND itemnumber NOT IN (
340 WHERE biblionumber = ?
341 AND itemnumber IS NOT NULL
342 AND (found IS NOT NULL OR priority = 0)
344 AND items.biblionumber = ?";
346 my @params = ($biblionumber, $biblionumber);
347 if ($branches_to_use && @$branches_to_use) {
348 $items_query .= " AND holdingbranch IN (" . join (",", map { "?" } @$branches_to_use) . ")";
349 push @params, @$branches_to_use;
351 my $sth = $dbh->prepare($items_query);
352 $sth->execute(@params);
354 my $itm = $sth->fetchall_arrayref({});
355 my @items = grep { ! scalar GetTransfers($_->{itemnumber}) } @$itm;
357 my $rule = GetBranchItemRule($_->{homebranch}, $_->{itype});
358 $_->{holdallowed} = $rule->{holdallowed};
359 $_->{hold_fulfillment_policy} = $rule->{hold_fulfillment_policy};
363 =head2 MapItemsToHoldRequests
365 MapItemsToHoldRequests($hold_requests, $available_items, $branches, $transport_cost_matrix)
369 sub MapItemsToHoldRequests {
370 my ($hold_requests, $available_items, $branches_to_use, $transport_cost_matrix) = @_;
372 # handle trival cases
373 return unless scalar(@$hold_requests) > 0;
374 return unless scalar(@$available_items) > 0;
376 # identify item-level requests
377 my %specific_items_requested = map { $_->{itemnumber} => 1 }
378 grep { defined($_->{itemnumber}) }
381 map { $_->{_object} = Koha::Items->find( $_->{itemnumber} ) } @$available_items;
383 map { $libraries->{$_->id} = $_ } Koha::Libraries->search();
385 # group available items by itemnumber
386 my %items_by_itemnumber = map { $_->{itemnumber} => $_ } @$available_items;
388 # items already allocated
389 my %allocated_items = ();
391 # map of items to hold requests
394 # figure out which item-level requests can be filled
395 my $num_items_remaining = scalar(@$available_items);
397 # Look for Local Holds Priority matches first
398 if ( C4::Context->preference('LocalHoldsPriority') ) {
399 my $LocalHoldsPriorityPatronControl =
400 C4::Context->preference('LocalHoldsPriorityPatronControl');
401 my $LocalHoldsPriorityItemControl =
402 C4::Context->preference('LocalHoldsPriorityItemControl');
404 foreach my $request (@$hold_requests) {
405 next if (defined($request->{itemnumber})); #skip item level holds in local priority checking
406 last if $num_items_remaining == 0;
408 my $local_hold_match;
409 foreach my $item (@$available_items) {
411 if ( !$item->{holdallowed} )
412 || ( $item->{holdallowed} == 1
413 && $item->{homebranch} ne $request->{borrowerbranch} );
415 next unless $item->{_object}->can_be_transferred( { to => $libraries->{ $request->{branchcode} } } );
417 my $local_holds_priority_item_branchcode =
418 $item->{$LocalHoldsPriorityItemControl};
420 my $local_holds_priority_patron_branchcode =
421 ( $LocalHoldsPriorityPatronControl eq 'PickupLibrary' )
422 ? $request->{branchcode}
423 : ( $LocalHoldsPriorityPatronControl eq 'HomeLibrary' )
424 ? $request->{borrowerbranch}
428 $local_holds_priority_item_branchcode eq
429 $local_holds_priority_patron_branchcode;
431 if ($local_hold_match) {
432 if ( exists $items_by_itemnumber{ $item->{itemnumber} }
433 and not exists $allocated_items{ $item->{itemnumber} }
434 and not $request->{allocated})
436 $item_map{ $item->{itemnumber} } = {
437 borrowernumber => $request->{borrowernumber},
438 biblionumber => $request->{biblionumber},
439 holdingbranch => $item->{holdingbranch},
440 pickup_branch => $request->{branchcode}
441 || $request->{borrowerbranch},
443 reservedate => $request->{reservedate},
444 reservenotes => $request->{reservenotes},
446 $allocated_items{ $item->{itemnumber} }++;
447 $request->{allocated} = 1;
448 $num_items_remaining--;
455 foreach my $request (@$hold_requests) {
456 last if $num_items_remaining == 0;
457 next if $request->{allocated};
459 # is this an item-level request?
460 if (defined($request->{itemnumber})) {
461 # fill it if possible; if not skip it
463 exists $items_by_itemnumber{ $request->{itemnumber} }
464 and not exists $allocated_items{ $request->{itemnumber} }
465 and ( # Don't fill item level holds that contravene the hold pickup policy at this time
466 ( $items_by_itemnumber{ $request->{itemnumber} }->{hold_fulfillment_policy} eq 'any' )
467 || ( $request->{branchcode} eq $items_by_itemnumber{ $request->{itemnumber} }->{ $items_by_itemnumber{ $request->{itemnumber} }->{hold_fulfillment_policy} } )
468 and ( !$request->{itemtype} # If hold itemtype is set, item's itemtype must match
469 || $items_by_itemnumber{ $request->{itemnumber} }->{itype} eq $request->{itemtype} )
471 and $items_by_itemnumber{ $request->{itemnumber} }->{_object}->can_be_transferred( { to => $libraries->{ $request->{branchcode} } } )
476 $item_map{ $request->{itemnumber} } = {
477 borrowernumber => $request->{borrowernumber},
478 biblionumber => $request->{biblionumber},
479 holdingbranch => $items_by_itemnumber{ $request->{itemnumber} }->{holdingbranch},
480 pickup_branch => $request->{branchcode} || $request->{borrowerbranch},
482 reservedate => $request->{reservedate},
483 reservenotes => $request->{reservenotes},
485 $allocated_items{ $request->{itemnumber} }++;
486 $num_items_remaining--;
489 # it's title-level request that will take up one item
490 $num_items_remaining--;
494 # group available items by branch
495 my %items_by_branch = ();
496 foreach my $item (@$available_items) {
497 next unless $item->{holdallowed};
499 push @{ $items_by_branch{ $item->{holdingbranch} } }, $item
500 unless exists $allocated_items{ $item->{itemnumber} };
502 return \%item_map unless keys %items_by_branch;
504 # now handle the title-level requests
505 $num_items_remaining = scalar(@$available_items) - scalar(keys %allocated_items);
507 foreach my $request (@$hold_requests) {
508 last if $num_items_remaining == 0;
509 next if $request->{allocated};
510 next if defined($request->{itemnumber}); # already handled these
512 # look for local match first
513 my $pickup_branch = $request->{branchcode} || $request->{borrowerbranch};
514 my ($itemnumber, $holdingbranch);
516 my $holding_branch_items = $items_by_branch{$pickup_branch};
517 if ( $holding_branch_items ) {
518 foreach my $item (@$holding_branch_items) {
519 next unless $items_by_itemnumber{ $item->{itemnumber} }->{_object}->can_be_transferred( { to => $libraries->{ $request->{branchcode} } } );
522 $request->{borrowerbranch} eq $item->{homebranch}
523 && ( ( $item->{hold_fulfillment_policy} eq 'any' ) # Don't fill item level holds that contravene the hold pickup policy at this time
524 || $request->{branchcode} eq $item->{ $item->{hold_fulfillment_policy} } )
525 && ( !$request->{itemtype} # If hold itemtype is set, item's itemtype must match
526 || $items_by_itemnumber{ $request->{itemnumber} }->{itype} eq $request->{itemtype} )
529 $itemnumber = $item->{itemnumber};
533 $holdingbranch = $pickup_branch;
535 elsif ($transport_cost_matrix) {
536 $pull_branches = [keys %items_by_branch];
537 $holdingbranch = least_cost_branch( $pickup_branch, $pull_branches, $transport_cost_matrix );
538 if ( $holdingbranch ) {
540 my $holding_branch_items = $items_by_branch{$holdingbranch};
541 foreach my $item (@$holding_branch_items) {
542 next if $request->{borrowerbranch} ne $item->{homebranch};
543 next unless $items_by_itemnumber{ $item->{itemnumber} }->{_object}->can_be_transferred( { to => $libraries->{ $request->{branchcode} } } );
545 # Don't fill item level holds that contravene the hold pickup policy at this time
546 next unless $item->{hold_fulfillment_policy} eq 'any'
547 || $request->{branchcode} eq $item->{ $item->{hold_fulfillment_policy} };
549 # If hold itemtype is set, item's itemtype must match
550 next unless ( !$request->{itemtype}
551 || $item->{itype} eq $request->{itemtype} );
553 $itemnumber = $item->{itemnumber};
562 unless ($itemnumber) {
563 # not found yet, fall back to basics
564 if ($branches_to_use) {
565 $pull_branches = $branches_to_use;
567 $pull_branches = [keys %items_by_branch];
570 # Try picking items where the home and pickup branch match first
572 foreach my $branch (@$pull_branches) {
573 my $holding_branch_items = $items_by_branch{$branch}
576 $holdingbranch ||= $branch;
577 foreach my $item (@$holding_branch_items) {
578 next if $pickup_branch ne $item->{homebranch};
579 next if ( $item->{holdallowed} == 1 && $item->{homebranch} ne $request->{borrowerbranch} );
580 next unless $items_by_itemnumber{ $item->{itemnumber} }->{_object}->can_be_transferred( { to => $libraries->{ $request->{branchcode} } } );
582 # Don't fill item level holds that contravene the hold pickup policy at this time
583 next unless $item->{hold_fulfillment_policy} eq 'any'
584 || $request->{branchcode} eq $item->{ $item->{hold_fulfillment_policy} };
586 # If hold itemtype is set, item's itemtype must match
587 next unless ( !$request->{itemtype}
588 || $item->{itype} eq $request->{itemtype} );
590 $itemnumber = $item->{itemnumber};
591 $holdingbranch = $branch;
596 # Now try items from the least cost branch based on the transport cost matrix or StaticHoldsQueueWeight
597 unless ( $itemnumber ) {
598 foreach my $current_item ( @{ $items_by_branch{$holdingbranch} } ) {
599 if ( $holdingbranch && ( $current_item->{holdallowed} == 2 || $request->{borrowerbranch} eq $current_item->{homebranch} ) ) {
601 # Don't fill item level holds that contravene the hold pickup policy at this time
602 next unless $current_item->{hold_fulfillment_policy} eq 'any'
603 || $request->{branchcode} eq $current_item->{ $current_item->{hold_fulfillment_policy} };
605 # If hold itemtype is set, item's itemtype must match
606 next unless ( !$request->{itemtype}
607 || $current_item->{itype} eq $request->{itemtype} );
609 next unless $items_by_itemnumber{ $current_item->{itemnumber} }->{_object}->can_be_transferred( { to => $libraries->{ $request->{branchcode} } } );
611 $itemnumber = $current_item->{itemnumber};
612 last; # quit this loop as soon as we have a suitable item
617 # Now try for items for any item that can fill this hold
618 unless ( $itemnumber ) {
620 foreach my $branch (@$pull_branches) {
621 my $holding_branch_items = $items_by_branch{$branch}
624 foreach my $item (@$holding_branch_items) {
625 next if ( $item->{holdallowed} == 1 && $item->{homebranch} ne $request->{borrowerbranch} );
627 # Don't fill item level holds that contravene the hold pickup policy at this time
628 next unless $item->{hold_fulfillment_policy} eq 'any'
629 || $request->{branchcode} eq $item->{ $item->{hold_fulfillment_policy} };
631 # If hold itemtype is set, item's itemtype must match
632 next unless ( !$request->{itemtype}
633 || $item->{itype} eq $request->{itemtype} );
635 next unless $items_by_itemnumber{ $item->{itemnumber} }->{_object}->can_be_transferred( { to => $libraries->{ $request->{branchcode} } } );
637 $itemnumber = $item->{itemnumber};
638 $holdingbranch = $branch;
646 my $holding_branch_items = $items_by_branch{$holdingbranch}
647 or die "Have $itemnumber, $holdingbranch, but no items!";
648 @$holding_branch_items = grep { $_->{itemnumber} != $itemnumber } @$holding_branch_items;
649 delete $items_by_branch{$holdingbranch} unless @$holding_branch_items;
651 $item_map{$itemnumber} = {
652 borrowernumber => $request->{borrowernumber},
653 biblionumber => $request->{biblionumber},
654 holdingbranch => $holdingbranch,
655 pickup_branch => $pickup_branch,
657 reservedate => $request->{reservedate},
658 reservenotes => $request->{reservenotes},
660 $num_items_remaining--;
666 =head2 CreatePickListFromItemMap
670 sub CreatePicklistFromItemMap {
671 my $item_map = shift;
673 my $dbh = C4::Context->dbh;
675 my $sth_load=$dbh->prepare("
676 INSERT INTO tmp_holdsqueue (biblionumber,itemnumber,barcode,surname,firstname,phone,borrowernumber,
677 cardnumber,reservedate,title, itemcallnumber,
678 holdingbranch,pickbranch,notes, item_level_request)
679 VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
682 foreach my $itemnumber (sort keys %$item_map) {
683 my $mapped_item = $item_map->{$itemnumber};
684 my $biblionumber = $mapped_item->{biblionumber};
685 my $borrowernumber = $mapped_item->{borrowernumber};
686 my $pickbranch = $mapped_item->{pickup_branch};
687 my $holdingbranch = $mapped_item->{holdingbranch};
688 my $reservedate = $mapped_item->{reservedate};
689 my $reservenotes = $mapped_item->{reservenotes};
690 my $item_level = $mapped_item->{item_level};
692 my $item = Koha::Items->find($itemnumber);
693 my $barcode = $item->barcode;
694 my $itemcallnumber = $item->itemcallnumber;
696 my $patron = Koha::Patrons->find( $borrowernumber );
697 my $cardnumber = $patron->cardnumber;
698 my $surname = $patron->surname;
699 my $firstname = $patron->firstname;
700 my $phone = $patron->phone;
702 my $biblio = Koha::Biblios->find( $biblionumber );
703 my $title = $biblio->title;
705 $sth_load->execute($biblionumber, $itemnumber, $barcode, $surname, $firstname, $phone, $borrowernumber,
706 $cardnumber, $reservedate, $title, $itemcallnumber,
707 $holdingbranch, $pickbranch, $reservenotes, $item_level);
711 =head2 AddToHoldTargetMap
715 sub AddToHoldTargetMap {
716 my $item_map = shift;
718 my $dbh = C4::Context->dbh;
721 INSERT INTO hold_fill_targets (borrowernumber, biblionumber, itemnumber, source_branchcode, item_level_request)
722 VALUES (?, ?, ?, ?, ?)
724 my $sth_insert = $dbh->prepare($insert_sql);
726 foreach my $itemnumber (keys %$item_map) {
727 my $mapped_item = $item_map->{$itemnumber};
728 $sth_insert->execute($mapped_item->{borrowernumber}, $mapped_item->{biblionumber}, $itemnumber,
729 $mapped_item->{holdingbranch}, $mapped_item->{item_level});
733 # Helper functions, not part of any interface
736 return $_[0] unless $_[0];
742 sub load_branches_to_pull_from {
745 my $static_branch_list = C4::Context->preference("StaticHoldsQueueWeight");
746 @branches_to_use = map { _trim($_) } split( /,/, $static_branch_list )
747 if $static_branch_list;
750 Koha::Database->new()->schema()->resultset('Branch')
751 ->get_column('branchcode')->all()
752 unless (@branches_to_use);
754 @branches_to_use = shuffle(@branches_to_use)
755 if C4::Context->preference("RandomizeHoldsQueueWeight");
757 my $today = dt_from_string();
758 if ( C4::Context->preference('HoldsQueueSkipClosed') ) {
759 @branches_to_use = grep {
760 !Koha::Calendar->new( branchcode => $_ )
761 ->is_holiday( $today )
765 return \@branches_to_use;
768 sub least_cost_branch {
771 my ($to, $from, $transport_cost_matrix) = @_;
773 # Nothing really spectacular: supply to branch, a list of potential from branches
774 # and find the minimum from - to value from the transport_cost_matrix
775 return $from->[0] if ( @$from == 1 && $transport_cost_matrix->{$to}{$from->[0]}->{disable_transfer} != 1 );
777 # If the pickup library is in the list of libraries to pull from,
778 # return that library right away, it is obviously the least costly
779 return ($to) if any { $_ eq $to } @$from;
781 my ($least_cost, @branch);
783 my $cell = $transport_cost_matrix->{$to}{$_};
784 next if $cell->{disable_transfer};
786 my $cost = $cell->{cost};
787 next unless defined $cost; # XXX should this be reported?
789 unless (defined $least_cost) {
795 next if $cost > $least_cost;
797 if ($cost == $least_cost) {
808 # XXX return a random @branch with minimum cost instead of the first one;
809 # return $branch[0] if @branch == 1;