1 # ---------------------------------------------------------------
2 # Copyright (C) 2005 Georgia Public Library Service
3 # Bill Erickson <highfalutin@gmail.com>
5 # This program is free software; you can redistribute it and/or
6 # modify it under the terms of the GNU General Public License
7 # as published by the Free Software Foundation; either version 2
8 # of the License, or (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
14 # ---------------------------------------------------------------
17 package OpenILS::Application::Circ::Holds;
18 use base qw/OpenILS::Application/;
19 use strict; use warnings;
20 use OpenILS::Application::AppUtils;
23 use OpenSRF::EX qw(:try);
27 use OpenSRF::Utils::Logger qw(:logger);
28 use OpenILS::Utils::CStoreEditor q/:funcs/;
29 use OpenILS::Utils::PermitHold;
30 use OpenSRF::Utils::SettingsClient;
31 use OpenILS::Const qw/:const/;
32 use OpenILS::Application::Circ::Transit;
34 my $apputils = "OpenILS::Application::AppUtils";
40 __PACKAGE__->register_method(
41 method => "create_hold",
42 api_name => "open-ils.circ.holds.create",
44 Create a new hold for an item. From a permissions perspective,
45 the login session is used as the 'requestor' of the hold.
46 The hold recipient is determined by the 'usr' setting within
49 First we verify the requestion has holds request permissions.
50 Then we verify that the recipient is allowed to make the given hold.
51 If not, we see if the requestor has "override" capabilities. If not,
52 a permission exception is returned. If permissions allow, we cycle
53 through the set of holds objects and create.
55 If the recipient does not have permission to place multiple holds
56 on a single title and said operation is attempted, a permission
61 __PACKAGE__->register_method(
62 method => "create_hold",
63 api_name => "open-ils.circ.holds.create.override",
65 If the recipient is not allowed to receive the requested hold,
66 call this method to attempt the override
67 @see open-ils.circ.holds.create
72 my( $self, $conn, $auth, @holds ) = @_;
73 my $e = new_editor(authtoken=>$auth, xact=>1);
74 return $e->event unless $e->checkauth;
76 my $override = 1 if $self->api_name =~ /override/;
78 my $holds = (ref($holds[0] eq 'ARRAY')) ? $holds[0] : [@holds];
82 for my $hold (@$holds) {
87 my $requestor = $e->requestor;
88 my $recipient = $requestor;
91 if( $requestor->id ne $hold->usr ) {
92 # Make sure the requestor is allowed to place holds for
93 # the recipient if they are not the same people
94 $recipient = $e->retrieve_actor_user($hold->usr) or return $e->event;
95 $e->allowed('REQUEST_HOLDS', $recipient->home_ou) or return $e->event;
98 # Now make sure the recipient is allowed to receive the specified hold
100 my $porg = $recipient->home_ou;
101 my $rid = $e->requestor->id;
102 my $t = $hold->hold_type;
104 # See if a duplicate hold already exists
106 usr => $recipient->id,
108 fulfillment_time => undef,
109 target => $hold->target,
110 cancel_time => undef,
113 $sargs->{holdable_formats} = $hold->holdable_formats if $t eq 'M';
115 my $existing = $e->search_action_hold_request($sargs);
116 push( @events, OpenILS::Event->new('HOLD_EXISTS')) if @$existing;
118 if( $t eq OILS_HOLD_TYPE_METARECORD )
119 { $pevt = $e->event unless $e->allowed('MR_HOLDS', $porg); }
121 if( $t eq OILS_HOLD_TYPE_TITLE )
122 { $pevt = $e->event unless $e->allowed('TITLE_HOLDS', $porg); }
124 if( $t eq OILS_HOLD_TYPE_VOLUME )
125 { $pevt = $e->event unless $e->allowed('VOLUME_HOLDS', $porg); }
127 if( $t eq OILS_HOLD_TYPE_COPY )
128 { $pevt = $e->event unless $e->allowed('COPY_HOLDS', $porg); }
130 return $pevt if $pevt;
134 for my $evt (@events) {
136 my $name = $evt->{textcode};
137 return $e->event unless $e->allowed("$name.override", $porg);
144 # set the configured expire time
145 unless($hold->expire_time) {
146 my $interval = $U->ou_ancestor_setting_value($recipient->home_ou, OILS_SETTING_HOLD_EXPIRE);
148 my $date = DateTime->now->add(seconds => OpenSRF::Utils::interval_to_seconds($interval));
149 $hold->expire_time($U->epoch2ISO8601($date->epoch));
153 $hold->requestor($e->requestor->id);
154 $hold->request_lib($e->requestor->ws_ou);
155 $hold->selection_ou($hold->pickup_lib) unless $hold->selection_ou;
156 $hold = $e->create_action_hold_request($hold) or return $e->event;
161 $conn->respond_complete(1);
164 next if $U->is_true($_->frozen);
166 'open-ils.storage.action.hold_request.copy_targeter',
174 my( $self, $client, $login_session, @holds) = @_;
176 if(!@holds){return 0;}
177 my( $user, $evt ) = $apputils->checkses($login_session);
181 if(ref($holds[0]) eq 'ARRAY') {
183 } else { $holds = [ @holds ]; }
185 $logger->debug("Iterating over holds requests...");
187 for my $hold (@$holds) {
190 my $type = $hold->hold_type;
192 $logger->activity("User " . $user->id .
193 " creating new hold of type $type for user " . $hold->usr);
196 if($user->id ne $hold->usr) {
197 ( $recipient, $evt ) = $apputils->fetch_user($hold->usr);
207 # am I allowed to place holds for this user?
208 if($hold->requestor ne $hold->usr) {
209 $perm = _check_request_holds_perm($user->id, $user->home_ou);
210 if($perm) { return $perm; }
213 # is this user allowed to have holds of this type?
214 $perm = _check_holds_perm($type, $hold->requestor, $recipient->home_ou);
215 return $perm if $perm;
217 #enforce the fact that the login is the one requesting the hold
218 $hold->requestor($user->id);
219 $hold->selection_ou($recipient->home_ou) unless $hold->selection_ou;
221 my $resp = $apputils->simplereq(
223 'open-ils.storage.direct.action.hold_request.create', $hold );
226 return OpenSRF::EX::ERROR ("Error creating hold");
233 # makes sure that a user has permission to place the type of requested hold
234 # returns the Perm exception if not allowed, returns undef if all is well
235 sub _check_holds_perm {
236 my($type, $user_id, $org_id) = @_;
240 if($evt = $apputils->check_perms(
241 $user_id, $org_id, "MR_HOLDS")) {
245 } elsif ($type eq "T") {
246 if($evt = $apputils->check_perms(
247 $user_id, $org_id, "TITLE_HOLDS")) {
251 } elsif($type eq "V") {
252 if($evt = $apputils->check_perms(
253 $user_id, $org_id, "VOLUME_HOLDS")) {
257 } elsif($type eq "C") {
258 if($evt = $apputils->check_perms(
259 $user_id, $org_id, "COPY_HOLDS")) {
267 # tests if the given user is allowed to place holds on another's behalf
268 sub _check_request_holds_perm {
271 if(my $evt = $apputils->check_perms(
272 $user_id, $org_id, "REQUEST_HOLDS")) {
277 __PACKAGE__->register_method(
278 method => "retrieve_holds_by_id",
279 api_name => "open-ils.circ.holds.retrieve_by_id",
281 Retrieve the hold, with hold transits attached, for the specified id The login session is the requestor and if the requestor is
282 different from the user, then the requestor must have VIEW_HOLD permissions.
286 sub retrieve_holds_by_id {
287 my($self, $client, $auth, $hold_id) = @_;
288 my $e = new_editor(authtoken=>$auth);
289 $e->checkauth or return $e->event;
290 $e->allowed('VIEW_HOLD') or return $e->event;
292 my $holds = $e->search_action_hold_request(
294 { id => $hold_id , fulfillment_time => undef },
295 { order_by => { ahr => "request_time" } }
299 flesh_hold_transits($holds);
300 flesh_hold_notices($holds, $e);
305 __PACKAGE__->register_method(
306 method => "retrieve_holds",
307 api_name => "open-ils.circ.holds.retrieve",
309 Retrieves all the holds, with hold transits attached, for the specified
310 user id. The login session is the requestor and if the requestor is
311 different from the user, then the requestor must have VIEW_HOLD permissions.
314 __PACKAGE__->register_method(
315 method => "retrieve_holds",
317 api_name => "open-ils.circ.holds.id_list.retrieve",
319 Retrieves all the hold ids for the specified
320 user id. The login session is the requestor and if the requestor is
321 different from the user, then the requestor must have VIEW_HOLD permissions.
325 my($self, $client, $login_session, $user_id) = @_;
327 my( $user, $target, $evt ) = $apputils->checkses_requestor(
328 $login_session, $user_id, 'VIEW_HOLD' );
331 my $holds = $apputils->simplereq(
333 "open-ils.cstore.direct.action.hold_request.search.atomic",
336 fulfillment_time => undef,
337 cancel_time => undef,
339 { order_by => { ahr => "request_time" } }
342 if( ! $self->api_name =~ /id_list/ ) {
343 for my $hold ( @$holds ) {
345 $apputils->simplereq(
347 "open-ils.cstore.direct.action.hold_transit_copy.search.atomic",
348 { hold => $hold->id },
349 { order_by => { ahtc => 'id desc' }, limit => 1 }
355 if( $self->api_name =~ /id_list/ ) {
356 return [ map { $_->id } @$holds ];
363 __PACKAGE__->register_method(
364 method => 'user_hold_count',
365 api_name => 'open-ils.circ.hold.user.count');
367 sub user_hold_count {
368 my( $self, $conn, $auth, $userid ) = @_;
369 my $e = new_editor(authtoken=>$auth);
370 return $e->event unless $e->checkauth;
371 my $patron = $e->retrieve_actor_user($userid)
373 return $e->event unless $e->allowed('VIEW_HOLD', $patron->home_ou);
374 return __user_hold_count($self, $e, $userid);
377 sub __user_hold_count {
378 my( $self, $e, $userid ) = @_;
379 my $holds = $e->search_action_hold_request(
381 fulfillment_time => undef,
382 cancel_time => undef,
387 return scalar(@$holds);
391 __PACKAGE__->register_method(
392 method => "retrieve_holds_by_pickup_lib",
393 api_name => "open-ils.circ.holds.retrieve_by_pickup_lib",
395 Retrieves all the holds, with hold transits attached, for the specified
399 __PACKAGE__->register_method(
400 method => "retrieve_holds_by_pickup_lib",
401 api_name => "open-ils.circ.holds.id_list.retrieve_by_pickup_lib",
403 Retrieves all the hold ids for the specified
407 sub retrieve_holds_by_pickup_lib {
408 my($self, $client, $login_session, $ou_id) = @_;
410 #FIXME -- put an appropriate permission check here
411 #my( $user, $target, $evt ) = $apputils->checkses_requestor(
412 # $login_session, $user_id, 'VIEW_HOLD' );
413 #return $evt if $evt;
415 my $holds = $apputils->simplereq(
417 "open-ils.cstore.direct.action.hold_request.search.atomic",
419 pickup_lib => $ou_id ,
420 fulfillment_time => undef,
423 { order_by => { ahr => "request_time" } });
426 if( ! $self->api_name =~ /id_list/ ) {
427 flesh_hold_transits($holds);
430 if( $self->api_name =~ /id_list/ ) {
431 return [ map { $_->id } @$holds ];
437 __PACKAGE__->register_method(
438 method => "cancel_hold",
439 api_name => "open-ils.circ.hold.cancel",
441 Cancels the specified hold. The login session
442 is the requestor and if the requestor is different from the usr field
443 on the hold, the requestor must have CANCEL_HOLDS permissions.
444 the hold may be either the hold object or the hold id
448 my($self, $client, $auth, $holdid) = @_;
450 my $e = new_editor(authtoken=>$auth, xact=>1);
451 return $e->event unless $e->checkauth;
453 my $hold = $e->retrieve_action_hold_request($holdid)
456 if( $e->requestor->id ne $hold->usr ) {
457 return $e->event unless $e->allowed('CANCEL_HOLDS');
460 return 1 if $hold->cancel_time;
462 # If the hold is captured, reset the copy status
463 if( $hold->capture_time and $hold->current_copy ) {
465 my $copy = $e->retrieve_asset_copy($hold->current_copy)
468 if( $copy->status == OILS_COPY_STATUS_ON_HOLDS_SHELF ) {
469 $logger->info("canceling hold $holdid whose item is on the holds shelf");
470 # $logger->info("setting copy to status 'reshelving' on hold cancel");
471 # $copy->status(OILS_COPY_STATUS_RESHELVING);
472 # $copy->editor($e->requestor->id);
473 # $copy->edit_date('now');
474 # $e->update_asset_copy($copy) or return $e->event;
476 } elsif( $copy->status == OILS_COPY_STATUS_IN_TRANSIT ) {
479 $logger->warn("! canceling hold [$hid] that is in transit");
480 my $transid = $e->search_action_hold_transit_copy({hold=>$hold->id},{idlist=>1})->[0];
483 my $trans = $e->retrieve_action_transit_copy($transid);
484 # Leave the transit alive, but set the copy status to
485 # reshelving so it will be properly reshelved when it gets back home
487 $trans->copy_status( OILS_COPY_STATUS_RESHELVING );
488 $e->update_action_transit_copy($trans) or return $e->die_event;
494 $hold->cancel_time('now');
495 $e->update_action_hold_request($hold)
498 delete_hold_copy_maps($self, $e, $hold->id);
504 sub delete_hold_copy_maps {
509 my $maps = $editor->search_action_hold_copy_map({hold=>$holdid});
511 $editor->delete_action_hold_copy_map($_)
512 or return $editor->event;
518 __PACKAGE__->register_method(
519 method => "update_hold",
520 api_name => "open-ils.circ.hold.update",
522 Updates the specified hold. The login session
523 is the requestor and if the requestor is different from the usr field
524 on the hold, the requestor must have UPDATE_HOLDS permissions.
528 my($self, $client, $auth, $hold) = @_;
530 my $e = new_editor(authtoken=>$auth, xact=>1);
531 return $e->die_event unless $e->checkauth;
533 my $orig_hold = $e->retrieve_action_hold_request($hold->id)
534 or return $e->die_event;
536 # don't allow the user to be changed
537 return OpenILS::Event->new('BAD_PARAMS') if $hold->usr != $orig_hold->usr;
539 if($hold->usr ne $e->requestor->id) {
540 # if the hold is for a different user, make sure the
541 # requestor has the appropriate permissions
542 my $usr = $e->retrieve_actor_user($hold->usr)
543 or return $e->die_event;
544 return $e->die_event unless $e->allowed('UPDATE_HOLD', $usr->home_ou);
547 # --------------------------------------------------------------
548 # if the hold is on the holds shelf and the pickup lib changes,
549 # we need to create a new transit
550 # --------------------------------------------------------------
551 if( ($orig_hold->pickup_lib ne $hold->pickup_lib) and (_hold_status($e, $hold) == 4)) {
552 return $e->die_event unless $e->allowed('UPDATE_PICKUP_LIB_FROM_HOLDS_SHELF', $orig_hold->pickup_lib);
553 return $e->die_event unless $e->allowed('UPDATE_PICKUP_LIB_FROM_HOLDS_SHELF', $hold->pickup_lib);
554 my $evt = transit_hold($e, $orig_hold, $hold,
555 $e->retrieve_asset_copy($hold->current_copy));
559 update_hold_if_frozen($self, $e, $hold, $orig_hold);
560 $e->update_action_hold_request($hold) or return $e->die_event;
566 my($e, $orig_hold, $hold, $copy) = @_;
567 my $src = $orig_hold->pickup_lib;
568 my $dest = $hold->pickup_lib;
570 $logger->info("putting hold into transit on pickup_lib update");
572 my $transit = Fieldmapper::action::transit_copy->new;
573 $transit->source($src);
574 $transit->dest($dest);
575 $transit->target_copy($copy->id);
576 $transit->source_send_time('now');
577 $transit->copy_status(OILS_COPY_STATUS_ON_HOLDS_SHELF);
579 $copy->status(OILS_COPY_STATUS_IN_TRANSIT);
580 $copy->editor($e->requestor->id);
581 $copy->edit_date('now');
583 $e->create_action_transit_copy($transit) or return $e->die_event;
584 $e->update_asset_copy($copy) or return $e->die_event;
588 # if the hold is frozen, this method ensures that the hold is not "targeted",
589 # that is, it clears the current_copy and prev_check_time to essentiallly
590 # reset the hold. If it is being activated, it runs the targeter in the background
591 sub update_hold_if_frozen {
592 my($self, $e, $hold, $orig_hold) = @_;
593 return if $hold->capture_time;
595 if($U->is_true($hold->frozen)) {
596 $logger->info("clearing current_copy and check_time for frozen hold ".$hold->id);
597 $hold->clear_current_copy;
598 $hold->clear_prev_check_time;
601 if($U->is_true($orig_hold->frozen)) {
602 $logger->info("Running targeter on activated hold ".$hold->id);
603 $U->storagereq( 'open-ils.storage.action.hold_request.copy_targeter', undef, $hold->id );
609 __PACKAGE__->register_method(
610 method => "retrieve_hold_status",
611 api_name => "open-ils.circ.hold.status.retrieve",
613 Calculates the current status of the hold.
614 the requestor must have VIEW_HOLD permissions if the hold is for a user
615 other than the requestor.
616 Returns -1 on error (for now)
617 Returns 1 for 'waiting for copy to become available'
618 Returns 2 for 'waiting for copy capture'
619 Returns 3 for 'in transit'
620 Returns 4 for 'arrived'
623 sub retrieve_hold_status {
624 my($self, $client, $auth, $hold_id) = @_;
626 my $e = new_editor(authtoken => $auth);
627 return $e->event unless $e->checkauth;
628 my $hold = $e->retrieve_action_hold_request($hold_id)
631 if( $e->requestor->id != $hold->usr ) {
632 return $e->event unless $e->allowed('VIEW_HOLD');
635 return _hold_status($e, $hold);
641 return 1 unless $hold->current_copy;
642 return 2 unless $hold->capture_time;
644 my $copy = $hold->current_copy;
645 unless( ref $copy ) {
646 $copy = $e->retrieve_asset_copy($hold->current_copy)
650 return 3 if $copy->status == OILS_COPY_STATUS_IN_TRANSIT;
651 return 4 if $copy->status == OILS_COPY_STATUS_ON_HOLDS_SHELF;
657 #sub find_local_hold {
658 # my( $class, $session, $copy, $user ) = @_;
659 # return $class->find_nearest_permitted_hold($session, $copy, $user);
663 sub fetch_open_hold_by_current_copy {
666 my $hold = $apputils->simplereq(
668 'open-ils.cstore.direct.action.hold_request.search.atomic',
669 { current_copy => $copyid , cancel_time => undef, fulfillment_time => undef });
670 return $hold->[0] if ref($hold);
674 sub fetch_related_holds {
677 return $apputils->simplereq(
679 'open-ils.cstore.direct.action.hold_request.search.atomic',
680 { current_copy => $copyid , cancel_time => undef, fulfillment_time => undef });
684 __PACKAGE__->register_method (
685 method => "hold_pull_list",
686 api_name => "open-ils.circ.hold_pull_list.retrieve",
688 Returns a list of holds that need to be "pulled"
693 __PACKAGE__->register_method (
694 method => "hold_pull_list",
695 api_name => "open-ils.circ.hold_pull_list.id_list.retrieve",
697 Returns a list of hold ID's that need to be "pulled"
704 my( $self, $conn, $authtoken, $limit, $offset ) = @_;
705 my( $reqr, $evt ) = $U->checkses($authtoken);
708 my $org = $reqr->ws_ou || $reqr->home_ou;
709 # the perm locaiton shouldn't really matter here since holds
710 # will exist all over and VIEW_HOLDS should be universal
711 $evt = $U->check_perms($reqr->id, $org, 'VIEW_HOLD');
714 if( $self->api_name =~ /id_list/ ) {
715 return $U->storagereq(
716 'open-ils.storage.direct.action.hold_request.pull_list.id_list.current_copy_circ_lib.status_filtered.atomic',
717 $org, $limit, $offset );
719 return $U->storagereq(
720 'open-ils.storage.direct.action.hold_request.pull_list.search.current_copy_circ_lib.status_filtered.atomic',
721 $org, $limit, $offset );
725 __PACKAGE__->register_method (
726 method => 'fetch_hold_notify',
727 api_name => 'open-ils.circ.hold_notification.retrieve_by_hold',
729 Returns a list of hold notification objects based on hold id.
730 @param authtoken The loggin session key
731 @param holdid The id of the hold whose notifications we want to retrieve
732 @return An array of hold notification objects, event on error.
736 sub fetch_hold_notify {
737 my( $self, $conn, $authtoken, $holdid ) = @_;
738 my( $requestor, $evt ) = $U->checkses($authtoken);
741 ($hold, $evt) = $U->fetch_hold($holdid);
743 ($patron, $evt) = $U->fetch_user($hold->usr);
746 $evt = $U->check_perms($requestor->id, $patron->home_ou, 'VIEW_HOLD_NOTIFICATION');
749 $logger->info("User ".$requestor->id." fetching hold notifications for hold $holdid");
750 return $U->cstorereq(
751 'open-ils.cstore.direct.action.hold_notification.search.atomic', {hold => $holdid} );
755 __PACKAGE__->register_method (
756 method => 'create_hold_notify',
757 api_name => 'open-ils.circ.hold_notification.create',
759 Creates a new hold notification object
760 @param authtoken The login session key
761 @param notification The hold notification object to create
762 @return ID of the new object on success, Event on error
766 sub create_hold_notify {
767 my( $self, $conn, $auth, $note ) = @_;
768 my $e = new_editor(authtoken=>$auth, xact=>1);
769 return $e->die_event unless $e->checkauth;
771 my $hold = $e->retrieve_action_hold_request($note->hold)
772 or return $e->die_event;
773 my $patron = $e->retrieve_actor_user($hold->usr)
774 or return $e->die_event;
776 return $e->die_event unless
777 $e->allowed('CREATE_HOLD_NOTIFICATION', $patron->home_ou);
779 $note->notify_staff($e->requestor->id);
780 $e->create_action_hold_notification($note) or return $e->die_event;
786 __PACKAGE__->register_method(
787 method => 'reset_hold',
788 api_name => 'open-ils.circ.hold.reset',
790 Un-captures and un-targets a hold, essentially returning
791 it to the state it was in directly after it was placed,
792 then attempts to re-target the hold
793 @param authtoken The login session key
794 @param holdid The id of the hold
800 my( $self, $conn, $auth, $holdid ) = @_;
802 my ($hold, $evt) = $U->fetch_hold($holdid);
804 ($reqr, $evt) = $U->checksesperm($auth, 'UPDATE_HOLD'); # XXX stronger permission
806 $evt = _reset_hold($self, $reqr, $hold);
812 my ($self, $reqr, $hold) = @_;
814 my $e = new_editor(xact =>1, requestor => $reqr);
816 $logger->info("reseting hold ".$hold->id);
820 if( $hold->capture_time and $hold->current_copy ) {
822 my $copy = $e->retrieve_asset_copy($hold->current_copy)
825 if( $copy->status == OILS_COPY_STATUS_ON_HOLDS_SHELF ) {
826 $logger->info("setting copy to status 'reshelving' on hold retarget");
827 $copy->status(OILS_COPY_STATUS_RESHELVING);
828 $copy->editor($e->requestor->id);
829 $copy->edit_date('now');
830 $e->update_asset_copy($copy) or return $e->event;
832 } elsif( $copy->status == OILS_COPY_STATUS_IN_TRANSIT ) {
834 # We don't want the copy to remain "in transit"
835 $copy->status(OILS_COPY_STATUS_RESHELVING);
836 $logger->warn("! reseting hold [$hid] that is in transit");
837 my $transid = $e->search_action_hold_transit_copy({hold=>$hold->id},{idlist=>1})->[0];
840 my $trans = $e->retrieve_action_transit_copy($transid);
842 $logger->info("Aborting transit [$transid] on hold [$hid] reset...");
843 my $evt = OpenILS::Application::Circ::Transit::__abort_transit($e, $trans, $copy, 1);
844 $logger->info("Transit abort completed with result $evt");
845 return $evt unless "$evt" eq 1;
851 $hold->clear_capture_time;
852 $hold->clear_current_copy;
854 $e->update_action_hold_request($hold) or return $e->event;
858 'open-ils.storage.action.hold_request.copy_targeter', undef, $hold->id );
864 __PACKAGE__->register_method(
865 method => 'fetch_open_title_holds',
866 api_name => 'open-ils.circ.open_holds.retrieve',
868 Returns a list ids of un-fulfilled holds for a given title id
869 @param authtoken The login session key
870 @param id the id of the item whose holds we want to retrieve
871 @param type The hold type - M, T, V, C
875 sub fetch_open_title_holds {
876 my( $self, $conn, $auth, $id, $type, $org ) = @_;
877 my $e = new_editor( authtoken => $auth );
878 return $e->event unless $e->checkauth;
881 $org ||= $e->requestor->ws_ou;
883 # return $e->search_action_hold_request(
884 # { target => $id, hold_type => $type, fulfillment_time => undef }, {idlist=>1});
886 # XXX make me return IDs in the future ^--
887 my $holds = $e->search_action_hold_request(
890 cancel_time => undef,
892 fulfillment_time => undef
896 flesh_hold_transits($holds);
901 sub flesh_hold_transits {
903 for my $hold ( @$holds ) {
905 $apputils->simplereq(
907 "open-ils.cstore.direct.action.hold_transit_copy.search.atomic",
908 { hold => $hold->id },
909 { order_by => { ahtc => 'id desc' }, limit => 1 }
915 sub flesh_hold_notices {
916 my( $holds, $e ) = @_;
919 for my $hold (@$holds) {
920 my $notices = $e->search_action_hold_notification(
922 { hold => $hold->id },
923 { order_by => { anh => 'notify_time desc' } },
928 $hold->notify_count(scalar(@$notices));
930 my $n = $e->retrieve_action_hold_notification($$notices[0])
932 $hold->notify_time($n->notify_time);
940 __PACKAGE__->register_method(
941 method => 'fetch_captured_holds',
942 api_name => 'open-ils.circ.captured_holds.on_shelf.retrieve',
944 Returns a list of un-fulfilled holds for a given title id
945 @param authtoken The login session key
946 @param org The org id of the location in question
950 __PACKAGE__->register_method(
951 method => 'fetch_captured_holds',
952 api_name => 'open-ils.circ.captured_holds.id_list.on_shelf.retrieve',
954 Returns a list ids of un-fulfilled holds for a given title id
955 @param authtoken The login session key
956 @param org The org id of the location in question
960 sub fetch_captured_holds {
961 my( $self, $conn, $auth, $org ) = @_;
963 my $e = new_editor(authtoken => $auth);
964 return $e->event unless $e->checkauth;
965 return $e->event unless $e->allowed('VIEW_HOLD'); # XXX rely on editor perm
967 $org ||= $e->requestor->ws_ou;
969 my $holds = $e->search_action_hold_request(
971 capture_time => { "!=" => undef },
972 current_copy => { "!=" => undef },
973 fulfillment_time => undef,
975 cancel_time => undef,
980 for my $h (@$holds) {
981 my $copy = $e->retrieve_asset_copy($h->current_copy)
984 $copy->status == OILS_COPY_STATUS_ON_HOLDS_SHELF;
987 if( ! $self->api_name =~ /id_list/ ) {
988 flesh_hold_transits(\@res);
989 flesh_hold_notices(\@res, $e);
992 if( $self->api_name =~ /id_list/ ) {
993 return [ map { $_->id } @res ];
999 __PACKAGE__->register_method(
1000 method => "check_title_hold",
1001 api_name => "open-ils.circ.title_hold.is_possible",
1003 Determines if a hold were to be placed by a given user,
1004 whether or not said hold would have any potential copies
1006 @param authtoken The login session key
1007 @param params A hash of named params including:
1008 patronid - the id of the hold recipient
1009 titleid (brn) - the id of the title to be held
1010 depth - the hold range depth (defaults to 0)
1013 sub check_title_hold {
1014 my( $self, $client, $authtoken, $params ) = @_;
1016 my %params = %$params;
1017 my $titleid = $params{titleid} ||"";
1018 my $volid = $params{volume_id};
1019 my $copyid = $params{copy_id};
1020 my $mrid = $params{mrid} ||"";
1021 my $depth = $params{depth} || 0;
1022 my $pickup_lib = $params{pickup_lib};
1023 my $hold_type = $params{hold_type} || 'T';
1024 my $selection_ou = $params{selection_ou} || $pickup_lib;
1026 my $e = new_editor(authtoken=>$authtoken);
1027 return $e->event unless $e->checkauth;
1028 my $patron = $e->retrieve_actor_user($params{patronid})
1029 or return $e->event;
1031 if( $e->requestor->id ne $patron->id ) {
1032 return $e->event unless
1033 $e->allowed('VIEW_HOLD_PERMIT', $patron->home_ou);
1036 return OpenILS::Event->new('PATRON_BARRED') if $U->is_true($patron->barred);
1038 my $request_lib = $e->retrieve_actor_org_unit($e->requestor->ws_ou)
1039 or return $e->event;
1041 my $soft_boundary = $U->ou_ancestor_setting_value($selection_ou, OILS_SETTING_HOLD_SOFT_BOUNDARY);
1042 my $hard_boundary = $U->ou_ancestor_setting_value($selection_ou, OILS_SETTING_HOLD_HARD_BOUNDARY);
1044 if(defined $soft_boundary and $$params{depth} < $soft_boundary) {
1045 # work up the tree and as soon as we find a potential copy, use that depth
1046 # also, make sure we don't go past the hard boundary if it exists
1048 # our min boundary is the greater of user-specified boundary or hard boundary
1049 my $min_depth = (defined $hard_boundary and $hard_boundary > $$params{depth}) ?
1050 $hard_boundary : $$params{depth};
1052 my $depth = $soft_boundary;
1053 while($depth >= $min_depth) {
1054 $logger->info("performing hold possibility check with soft boundary $depth");
1055 return {success => 1, depth => $depth}
1056 if do_possibility_checks($e, $patron, $request_lib, $depth, %params);
1059 return {success => 0};
1061 } elsif(defined $hard_boundary and $$params{depth} < $hard_boundary) {
1062 # there is no soft boundary, enforce the hard boundary if it exists
1063 $logger->info("performing hold possibility check with hard boundary $hard_boundary");
1064 if(do_possibility_checks($e, $patron, $request_lib, $hard_boundary, %params)) {
1065 return {success => 1, depth => $hard_boundary}
1067 return {success => 0};
1071 # no boundaries defined, fall back to user specifed boundary or no boundary
1072 $logger->info("performing hold possibility check with no boundary");
1073 if(do_possibility_checks($e, $patron, $request_lib, $params{depth}, %params)) {
1074 return {success => 1, depth => $hard_boundary};
1076 return {success => 0};
1081 sub do_possibility_checks {
1082 my($e, $patron, $request_lib, $depth, %params) = @_;
1084 my $titleid = $params{titleid} ||"";
1085 my $volid = $params{volume_id};
1086 my $copyid = $params{copy_id};
1087 my $mrid = $params{mrid} ||"";
1088 my $pickup_lib = $params{pickup_lib};
1089 my $hold_type = $params{hold_type} || 'T';
1090 my $selection_ou = $params{selection_ou} || $pickup_lib;
1097 if( $hold_type eq OILS_HOLD_TYPE_COPY ) {
1099 $copy = $e->retrieve_asset_copy($copyid) or return $e->event;
1100 $volume = $e->retrieve_asset_call_number($copy->call_number)
1101 or return $e->event;
1102 $title = $e->retrieve_biblio_record_entry($volume->record)
1103 or return $e->event;
1104 return verify_copy_for_hold(
1105 $patron, $e->requestor, $title, $copy, $pickup_lib, $request_lib );
1107 } elsif( $hold_type eq OILS_HOLD_TYPE_VOLUME ) {
1109 $volume = $e->retrieve_asset_call_number($volid)
1110 or return $e->event;
1111 $title = $e->retrieve_biblio_record_entry($volume->record)
1112 or return $e->event;
1114 return _check_volume_hold_is_possible(
1115 $volume, $title, $depth, $request_lib, $patron, $e->requestor, $pickup_lib, $selection_ou);
1117 } elsif( $hold_type eq OILS_HOLD_TYPE_TITLE ) {
1119 return _check_title_hold_is_possible(
1120 $titleid, $depth, $request_lib, $patron, $e->requestor, $pickup_lib, $selection_ou);
1122 } elsif( $hold_type eq OILS_HOLD_TYPE_METARECORD ) {
1124 my $maps = $e->search_metabib_source_map({metarecord=>$mrid});
1125 my @recs = map { $_->source } @$maps;
1126 for my $rec (@recs) {
1127 return 1 if (_check_title_hold_is_possible(
1128 $rec, $depth, $request_lib, $patron, $e->requestor, $pickup_lib, $selection_ou));
1136 sub _check_metarecord_hold_is_possible {
1137 my( $mrid, $rangelib, $depth, $request_lib, $patron, $requestor, $pickup_lib ) = @_;
1139 my $e = new_editor();
1141 # this monster will grab the id and circ_lib of all of the "holdable" copies for the given metarecord
1142 my $copies = $e->json_query(
1144 select => { acp => ['id', 'circ_lib'] },
1149 fkey => 'call_number',
1154 filter => { metarecord => $mrid }
1158 acpl => { field => 'id', filter => { holdable => 't'}, fkey => 'location' },
1159 ccs => { field => 'id', filter => { holdable => 't'}, fkey => 'status' }
1163 '+acp' => { circulate => 't', deleted => 'f', holdable => 't' }
1168 return $e->event unless defined $copies;
1169 $logger->info("metarecord possible found ".scalar(@$copies)." potential copies");
1170 return 0 unless @$copies;
1172 # -----------------------------------------------------------------------
1173 # sort the copies into buckets based on their circ_lib proximity to
1174 # the patron's home_ou.
1175 # -----------------------------------------------------------------------
1177 my $home_org = $patron->home_ou;
1178 my $req_org = $request_lib->id;
1180 $prox_cache{$home_org} =
1181 $e->search_actor_org_unit_proximity({from_org => $home_org})
1182 unless $prox_cache{$home_org};
1183 my $home_prox = $prox_cache{$home_org};
1186 my %hash = map { ($_->to_org => $_->prox) } @$home_prox;
1187 push( @{$buckets{ $hash{$_->{circ_lib}} } }, $_->{id} ) for @$copies;
1189 my @keys = sort { $a <=> $b } keys %buckets;
1192 if( $home_org ne $req_org ) {
1193 # -----------------------------------------------------------------------
1194 # shove the copies close to the request_lib into the primary buckets
1195 # directly before the farthest away copies. That way, they are not
1196 # given priority, but they are checked before the farthest copies.
1197 # -----------------------------------------------------------------------
1199 $prox_cache{$req_org} =
1200 $e->search_actor_org_unit_proximity({from_org => $req_org})
1201 unless $prox_cache{$req_org};
1202 my $req_prox = $prox_cache{$req_org};
1205 my %hash2 = map { ($_->to_org => $_->prox) } @$req_prox;
1206 push( @{$buckets2{ $hash2{$_->{circ_lib}} } }, $_->{id} ) for @$copies;
1208 my $highest_key = $keys[@keys - 1]; # the farthest prox in the exising buckets
1209 my $new_key = $highest_key - 0.5; # right before the farthest prox
1210 my @keys2 = sort { $a <=> $b } keys %buckets2;
1211 for my $key (@keys2) {
1212 last if $key >= $highest_key;
1213 push( @{$buckets{$new_key}}, $_ ) for @{$buckets2{$key}};
1217 @keys = sort { $a <=> $b } keys %buckets;
1220 for my $key (@keys) {
1221 my @cps = @{$buckets{$key}};
1223 $logger->info("looking at " . scalar(@{$buckets{$key}}). " copies in proximity bucket $key");
1225 for my $copyid (@cps) {
1227 next if $seen{$copyid};
1228 $seen{$copyid} = 1; # there could be dupes given the merged buckets
1229 my $copy = $e->retrieve_asset_copy($copyid) or return $e->event;
1230 $logger->debug("looking at bucket_key=$key, copy $copyid : circ_lib = " . $copy->circ_lib);
1232 my $vol = $e->retrieve_asset_call_number(
1233 [ $copy->call_number, { flesh => 1, flesh_fields => { acn => ['record'] } } ] );
1235 return 1 if verify_copy_for_hold(
1236 $patron, $requestor, $vol->record, $copy, $pickup_lib, $request_lib );
1244 sub create_ranged_org_filter {
1245 my($e, $selection_ou, $depth) = @_;
1247 # find the orgs from which this hold may be fulfilled,
1248 # based on the selection_ou and depth
1250 my $top_org = $e->search_actor_org_unit([
1251 {parent_ou => undef},
1252 {flesh=>1, flesh_fields=>{aou=>['ou_type']}}])->[0];
1255 return () if $depth == $top_org->ou_type->depth;
1257 my $org_list = $U->storagereq('open-ils.storage.actor.org_unit.descendants.atomic', $selection_ou, $depth);
1258 %org_filter = (circ_lib => []);
1259 push(@{$org_filter{circ_lib}}, $_->id) for @$org_list;
1261 $logger->info("hold org filter at depth $depth and selection_ou ".
1262 "$selection_ou created list of @{$org_filter{circ_lib}}");
1268 sub _check_title_hold_is_possible {
1269 my( $titleid, $depth, $request_lib, $patron, $requestor, $pickup_lib, $selection_ou ) = @_;
1271 my $e = new_editor();
1272 my %org_filter = create_ranged_org_filter($e, $selection_ou, $depth);
1274 # this monster will grab the id and circ_lib of all of the "holdable" copies for the given record
1275 my $copies = $e->json_query(
1277 select => { acp => ['id', 'circ_lib'] },
1282 fkey => 'call_number',
1286 filter => { id => $titleid },
1291 acpl => { field => 'id', filter => { holdable => 't'}, fkey => 'location' },
1292 ccs => { field => 'id', filter => { holdable => 't'}, fkey => 'status' }
1296 '+acp' => { circulate => 't', deleted => 'f', holdable => 't', %org_filter }
1301 return $e->event unless defined $copies;
1302 $logger->info("title possible found ".scalar(@$copies)." potential copies");
1303 return 0 unless @$copies;
1305 # -----------------------------------------------------------------------
1306 # sort the copies into buckets based on their circ_lib proximity to
1307 # the patron's home_ou.
1308 # -----------------------------------------------------------------------
1310 my $home_org = $patron->home_ou;
1311 my $req_org = $request_lib->id;
1313 $logger->info("prox cache $home_org " . $prox_cache{$home_org});
1315 $prox_cache{$home_org} =
1316 $e->search_actor_org_unit_proximity({from_org => $home_org})
1317 unless $prox_cache{$home_org};
1318 my $home_prox = $prox_cache{$home_org};
1321 my %hash = map { ($_->to_org => $_->prox) } @$home_prox;
1322 push( @{$buckets{ $hash{$_->{circ_lib}} } }, $_->{id} ) for @$copies;
1324 my @keys = sort { $a <=> $b } keys %buckets;
1327 if( $home_org ne $req_org ) {
1328 # -----------------------------------------------------------------------
1329 # shove the copies close to the request_lib into the primary buckets
1330 # directly before the farthest away copies. That way, they are not
1331 # given priority, but they are checked before the farthest copies.
1332 # -----------------------------------------------------------------------
1333 $prox_cache{$req_org} =
1334 $e->search_actor_org_unit_proximity({from_org => $req_org})
1335 unless $prox_cache{$req_org};
1336 my $req_prox = $prox_cache{$req_org};
1340 my %hash2 = map { ($_->to_org => $_->prox) } @$req_prox;
1341 push( @{$buckets2{ $hash2{$_->{circ_lib}} } }, $_->{id} ) for @$copies;
1343 my $highest_key = $keys[@keys - 1]; # the farthest prox in the exising buckets
1344 my $new_key = $highest_key - 0.5; # right before the farthest prox
1345 my @keys2 = sort { $a <=> $b } keys %buckets2;
1346 for my $key (@keys2) {
1347 last if $key >= $highest_key;
1348 push( @{$buckets{$new_key}}, $_ ) for @{$buckets2{$key}};
1352 @keys = sort { $a <=> $b } keys %buckets;
1356 for my $key (@keys) {
1357 my @cps = @{$buckets{$key}};
1359 $logger->info("looking at " . scalar(@{$buckets{$key}}). " copies in proximity bucket $key");
1361 for my $copyid (@cps) {
1363 next if $seen{$copyid};
1364 $seen{$copyid} = 1; # there could be dupes given the merged buckets
1365 my $copy = $e->retrieve_asset_copy($copyid) or return $e->event;
1366 $logger->debug("looking at bucket_key=$key, copy $copyid : circ_lib = " . $copy->circ_lib);
1368 unless($title) { # grab the title if we don't already have it
1369 my $vol = $e->retrieve_asset_call_number(
1370 [ $copy->call_number, { flesh => 1, flesh_fields => { acn => ['record'] } } ] );
1371 $title = $vol->record;
1374 return 1 if verify_copy_for_hold(
1375 $patron, $requestor, $title, $copy, $pickup_lib, $request_lib );
1384 sub _check_volume_hold_is_possible {
1385 my( $vol, $title, $depth, $request_lib, $patron, $requestor, $pickup_lib, $selection_ou ) = @_;
1386 my %org_filter = create_ranged_org_filter(new_editor(), $selection_ou, $depth);
1387 my $copies = new_editor->search_asset_copy({call_number => $vol->id, %org_filter});
1388 $logger->info("checking possibility of volume hold for volume ".$vol->id);
1389 for my $copy ( @$copies ) {
1390 return 1 if verify_copy_for_hold(
1391 $patron, $requestor, $title, $copy, $pickup_lib, $request_lib );
1398 sub verify_copy_for_hold {
1399 my( $patron, $requestor, $title, $copy, $pickup_lib, $request_lib ) = @_;
1400 $logger->info("checking possibility of copy in hold request for copy ".$copy->id);
1401 return 1 if OpenILS::Utils::PermitHold::permit_copy_hold(
1402 { patron => $patron,
1403 requestor => $requestor,
1406 title_descriptor => $title->fixed_fields, # this is fleshed into the title object
1407 pickup_lib => $pickup_lib,
1408 request_lib => $request_lib,
1417 sub find_nearest_permitted_hold {
1420 my $editor = shift; # CStoreEditor object
1421 my $copy = shift; # copy to target
1422 my $user = shift; # staff
1423 my $check_only = shift; # do no updates, just see if the copy could fulfill a hold
1424 my $evt = OpenILS::Event->new('ACTION_HOLD_REQUEST_NOT_FOUND');
1426 my $bc = $copy->barcode;
1428 # find any existing holds that already target this copy
1429 my $old_holds = $editor->search_action_hold_request(
1430 { current_copy => $copy->id,
1431 cancel_time => undef,
1432 capture_time => undef
1436 # hold->type "R" means we need this copy
1437 for my $h (@$old_holds) { return ($h) if $h->hold_type eq 'R'; }
1440 my $hold_stall_interval = $U->ou_ancestor_setting_value($user->ws_ou, OILS_SETTING_HOLD_SOFT_STALL);
1442 $logger->info("circulator: searching for best hold at org ".$user->ws_ou.
1443 " and copy $bc with a hold stalling interval of ". ($hold_stall_interval || "(none)"));
1445 # search for what should be the best holds for this copy to fulfill
1446 my $best_holds = $U->storagereq(
1447 "open-ils.storage.action.hold_request.nearest_hold.atomic",
1448 $user->ws_ou, $copy->id, 10, $hold_stall_interval );
1450 unless(@$best_holds) {
1452 if( my $hold = $$old_holds[0] ) {
1453 $logger->info("circulator: using existing pre-targeted hold ".$hold->id." in hold search");
1457 $logger->info("circulator: no suitable holds found for copy $bc");
1458 return (undef, $evt);
1464 # for each potential hold, we have to run the permit script
1465 # to make sure the hold is actually permitted.
1466 for my $holdid (@$best_holds) {
1467 next unless $holdid;
1468 $logger->info("circulator: checking if hold $holdid is permitted for copy $bc");
1470 my $hold = $editor->retrieve_action_hold_request($holdid) or next;
1471 my $reqr = $editor->retrieve_actor_user($hold->requestor) or next;
1472 my $rlib = $editor->retrieve_actor_org_unit($hold->request_lib) or next;
1474 # see if this hold is permitted
1475 my $permitted = OpenILS::Utils::PermitHold::permit_copy_hold(
1476 { patron_id => $hold->usr,
1479 pickup_lib => $hold->pickup_lib,
1480 request_lib => $rlib,
1491 unless( $best_hold ) { # no "good" permitted holds were found
1492 if( my $hold = $$old_holds[0] ) { # can we return a pre-targeted hold?
1493 $logger->info("circulator: using existing pre-targeted hold ".$hold->id." in hold search");
1498 $logger->info("circulator: no suitable holds found for copy $bc");
1499 return (undef, $evt);
1502 $logger->info("circulator: best hold ".$best_hold->id." found for copy $bc");
1504 # indicate a permitted hold was found
1505 return $best_hold if $check_only;
1507 # we've found a permitted hold. we need to "grab" the copy
1508 # to prevent re-targeted holds (next part) from re-grabbing the copy
1509 $best_hold->current_copy($copy->id);
1510 $editor->update_action_hold_request($best_hold)
1511 or return (undef, $editor->event);
1516 # re-target any other holds that already target this copy
1517 for my $old_hold (@$old_holds) {
1518 next if $old_hold->id eq $best_hold->id; # don't re-target the hold we want
1519 $logger->info("circulator: clearing current_copy and prev_check_time on hold ".
1520 $old_hold->id." after a better hold [".$best_hold->id."] was found");
1521 $old_hold->clear_current_copy;
1522 $old_hold->clear_prev_check_time;
1523 $editor->update_action_hold_request($old_hold)
1524 or return (undef, $editor->event);
1528 return ($best_hold, undef, $retarget);
1536 __PACKAGE__->register_method(
1537 method => 'all_rec_holds',
1538 api_name => 'open-ils.circ.holds.retrieve_all_from_title',
1542 my( $self, $conn, $auth, $title_id, $args ) = @_;
1544 my $e = new_editor(authtoken=>$auth);
1545 $e->checkauth or return $e->event;
1546 $e->allowed('VIEW_HOLD') or return $e->event;
1548 $args ||= { fulfillment_time => undef };
1549 $args->{cancel_time} = undef;
1551 my $resp = { volume_holds => [], copy_holds => [] };
1553 $resp->{title_holds} = $e->search_action_hold_request(
1555 hold_type => OILS_HOLD_TYPE_TITLE,
1556 target => $title_id,
1560 my $vols = $e->search_asset_call_number(
1561 { record => $title_id, deleted => 'f' }, {idlist=>1});
1563 return $resp unless @$vols;
1565 $resp->{volume_holds} = $e->search_action_hold_request(
1567 hold_type => OILS_HOLD_TYPE_VOLUME,
1572 my $copies = $e->search_asset_copy(
1573 { call_number => $vols, deleted => 'f' }, {idlist=>1});
1575 return $resp unless @$copies;
1577 $resp->{copy_holds} = $e->search_action_hold_request(
1579 hold_type => OILS_HOLD_TYPE_COPY,
1591 __PACKAGE__->register_method(
1592 method => 'uber_hold',
1594 api_name => 'open-ils.circ.hold.details.retrieve'
1598 my($self, $client, $auth, $hold_id) = @_;
1599 my $e = new_editor(authtoken=>$auth);
1600 $e->checkauth or return $e->event;
1601 $e->allowed('VIEW_HOLD') or return $e->event;
1605 my $hold = $e->retrieve_action_hold_request(
1610 flesh_fields => { ahr => [ 'current_copy', 'usr' ] }
1613 ) or return $e->event;
1615 my $user = $hold->usr;
1616 $hold->usr($user->id);
1618 my $card = $e->retrieve_actor_card($user->card)
1619 or return $e->event;
1621 my( $mvr, $volume, $copy ) = find_hold_mvr($e, $hold);
1623 flesh_hold_notices([$hold], $e);
1624 flesh_hold_transits([$hold]);
1631 status => _hold_status($e, $hold),
1632 patron_first => $user->first_given_name,
1633 patron_last => $user->family_name,
1634 patron_barcode => $card->barcode,
1640 # -----------------------------------------------------
1641 # Returns the MVR object that represents what the
1643 # -----------------------------------------------------
1645 my( $e, $hold ) = @_;
1651 if( $hold->hold_type eq OILS_HOLD_TYPE_METARECORD ) {
1652 my $mr = $e->retrieve_metabib_metarecord($hold->target)
1653 or return $e->event;
1654 $tid = $mr->master_record;
1656 } elsif( $hold->hold_type eq OILS_HOLD_TYPE_TITLE ) {
1657 $tid = $hold->target;
1659 } elsif( $hold->hold_type eq OILS_HOLD_TYPE_VOLUME ) {
1660 $volume = $e->retrieve_asset_call_number($hold->target)
1661 or return $e->event;
1662 $tid = $volume->record;
1664 } elsif( $hold->hold_type eq OILS_HOLD_TYPE_COPY ) {
1665 $copy = $e->retrieve_asset_copy($hold->target)
1666 or return $e->event;
1667 $volume = $e->retrieve_asset_call_number($copy->call_number)
1668 or return $e->event;
1669 $tid = $volume->record;
1672 if(!$copy and ref $hold->current_copy ) {
1673 $copy = $hold->current_copy;
1674 $hold->current_copy($copy->id);
1677 if(!$volume and $copy) {
1678 $volume = $e->retrieve_asset_call_number($copy->call_number);
1681 my $title = $e->retrieve_biblio_record_entry($tid);
1682 return ( $U->record_to_mvr($title), $volume, $copy );