1 package OpenILS::Utils::HoldTargeter;
2 # ---------------------------------------------------------------
3 # Copyright (C) 2016 King County Library System
4 # Author: Bill Erickson <berickxx@gmail.com>
6 # This program is free software; you can redistribute it and/or
7 # modify it under the terms of the GNU General Public License
8 # as published by the Free Software Foundation; either version 2
9 # of the License, or (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
15 # ---------------------------------------------------------------
19 use OpenSRF::AppSession;
20 use OpenSRF::Utils::Logger qw(:logger);
21 use OpenSRF::Utils::JSON;
22 use OpenSRF::Utils qw/:datetime/;
23 use OpenILS::Application::AppUtils;
24 use OpenILS::Utils::CStoreEditor qw/:funcs/;
26 our $U = "OpenILS::Application::AppUtils";
27 our $dt_parser = DateTime::Format::ISO8601->new;
29 # See target() for runtime arguments.
31 my ($class, %args) = @_;
33 editor => new_editor(),
34 ou_setting_cache => {},
37 return bless($self, $class);
40 # Target and retarget holds.
41 # By default, targets all holds that need targeting, meaning those that
42 # have either never been targeted or those whose prev_check_time exceeds
43 # the retarget interval.
45 # Returns an array of targeter response objects, one entry per hold
46 # targeted. See also return_count.
48 # Optional parameters:
50 # hold => <id> / [<id>, <id>, ...]
51 # (Re)target one or more specific holds. Specified as a single hold ID
52 # or an array ref of hold IDs.
55 # Return the total number of holds processed instead of a result
56 # object for every targeted hold. Ideal for large batch targeting.
58 # retarget_interval => <interval string>
59 # Override the 'circ.holds.retarget_interval' global_flag value.
61 # soft_retarget_interval => <interval string>
62 # Apply soft retarget logic to holds whose prev_check_time sits
63 # between the retarget_interval and the soft_retarget_interval.
65 # next_check_interval => <interval string>
66 # Use this interval to determine when the targeter will run next
67 # instead of relying on the retarget_interval. This value is used
68 # to determine if an org unit will be closed during the next iteration
69 # of the targeter. Applying a specific interval is useful when
70 # the retarget_interval is shorter than the time between targeter runs.
73 # Target holds in reverse order of create_time.
76 # Number of parallel targeters running. This acts as the indication
77 # that other targeter instances are running.
79 # parallel_slot => n [starts at 1]
80 # Sets the parallel targeter instance position/slot. Used to determine
81 # which holds to process to avoid conflicts with other running instances.
84 my ($self, %args) = @_;
86 $self->{$_} = $args{$_} for keys %args;
93 for my $hold_id ($self->find_holds_to_target) {
95 OpenILS::Utils::HoldTargeter::Single->new(parent => $self);
97 $single->target($hold_id);
98 push(@responses, $single->result) unless $self->{return_count};
102 return $self->{return_count} ? $count : \@responses;
105 sub find_holds_to_target {
109 # $self->{hold} can be a single hold ID or an array ref of hold IDs
110 return @{$self->{hold}} if ref $self->{hold} eq 'ARRAY';
111 return ($self->{hold});
115 select => {ahr => ['id']},
118 capture_time => undef,
119 fulfillment_time => undef,
120 cancel_time => undef,
124 {class => 'ahr', field => 'selection_depth', direction => 'DESC'},
125 {class => 'ahr', field => 'request_time'},
126 {class => 'ahr', field => 'prev_check_time'}
130 # Target holds that have no prev_check_time or those whose re-target
131 # time has come. If a soft_retarget_time is specified, that acts as
132 # the boundary. Otherwise, the retarget_time is used.
133 my $start_time = $self->{soft_retarget_time} || $self->{retarget_time};
134 $query->{where}->{'-or'} = [
135 {prev_check_time => undef},
136 {prev_check_time => {'<=' => $start_time->strftime('%F %T%z')}}
139 # parallel < 1 means no parallel
140 my $parallel = ($self->{parallel_count} || 0) > 1 ?
141 $self->{parallel_count} : 0;
144 # In parallel mode, we need to also grab the metarecord for each hold.
160 # In parallel mode, only process holds within the current process
161 # whose metarecord ID modulo the parallel targeter count matches
162 # our paralell targeting slot. This ensures that no 2 processes
163 # will be operating on the same potential copy sets.
165 # E.g. Running 5 parallel and we are slot 3 (0-based slot 2) of 5,
166 # process holds whose metarecord ID's are 2, 7, 12, 17, ...
167 # WHERE MOD(mmrsm.id, 5) = 2
169 # Slots are 1-based at the API level, but 0-based for modulo.
170 my $slot = $self->{parallel_slot} - 1;
172 $query->{where}->{'+mmrsm'} = {
177 params => [$parallel]
183 # Newest-first sorting cares only about hold create_time.
185 [{class => 'ahr', field => 'request_time', direction => 'DESC'}]
186 if $self->{newest_first};
188 my $holds = $self->editor->json_query($query, {substream => 1});
190 return map {$_->{id}} @$holds;
195 return $self->{editor};
198 # Load startup data required by all targeter actions.
201 my $e = $self->editor;
203 # See if the caller provided an interval
204 my $interval = $self->{retarget_interval};
207 # See if we have a global flag value for the interval
209 $interval = $e->search_config_global_flag({
210 name => 'circ.holds.retarget_interval',
214 # If no flag is present, default to a 24-hour retarget interval.
215 $interval = $interval ? $interval->value : '24h';
218 my $retarget_seconds = interval_to_seconds($interval);
220 $self->{retarget_time} = DateTime->now(time_zone => 'local')
221 ->subtract(seconds => $retarget_seconds);
223 $logger->info("Using retarget time: ".
224 $self->{retarget_time}->strftime('%F %T%z'));
226 if ($self->{soft_retarget_interval}) {
228 my $secs = OpenSRF::Utils->interval_to_seconds(
229 $self->{soft_retarget_interval});
231 $self->{soft_retarget_time} =
232 DateTime->now(time_zone => 'local')->subtract(seconds => $secs);
234 $logger->info("Using soft retarget time: " .
235 $self->{soft_retarget_time}->strftime('%F %T%z'));
238 # Holds targeted in the current targeter instance not be retargeted
239 # until the next check date. If a next_check_interval is provided
240 # it overrides the retarget_interval.
241 my $next_check_secs =
242 $self->{next_check_interval} ?
243 OpenSRF::Utils->interval_to_seconds($self->{next_check_interval}) :
246 my $next_check_date =
247 DateTime->now(time_zone => 'local')->add(seconds => $next_check_secs);
249 my $next_check_time = $next_check_date->strftime('%F %T%z');
251 $logger->info("Next check time: $next_check_time");
253 # An org unit is considered closed for retargeting purposes
254 # if it's closed both now and at the next re-target date.
255 my $closed = $self->editor->search_actor_org_unit_closed_date({
257 close_start => {'<=', 'now'},
258 close_end => {'>=', 'now'}
260 close_start => {'<=', $next_check_time},
261 close_end => {'>=', $next_check_time}
265 my @closed_orgs = map {$_->org_unit} @$closed;
266 $logger->info("closed org unit IDs: @closed_orgs");
268 # Map of org id to 1. Any org in the map is closed.
269 $self->{closed_orgs} = {map {$_ => 1} @closed_orgs};
273 # Org unit setting fetch+cache
274 # $e is the OpenILS::Utils::HoldTargeter::Single editor. Use it if
275 # provided to avoid timeouts on the in-transaction child editor.
277 my ($self, $org_id, $setting, $e) = @_;
278 my $c = $self->{ou_setting_cache};
280 $e ||= $self->{editor};
281 $c->{$org_id} = {} unless $c->{$org_id};
283 $c->{$org_id}->{$setting} =
284 $U->ou_ancestor_setting_value($org_id, $setting, $e)
285 unless exists $c->{$org_id}->{$setting};
287 return $c->{$org_id}->{$setting};
290 # Fetches settings for a batch of org units. Useful for pre-caching
291 # setting values across a wide variety of org units without having to
292 # make a lookup call for every org unit.
293 # First checks to see if a value exists in the cache.
294 # For all non-cached values, looks up in DB, then caches the value.
295 sub precache_batch_ou_settings {
296 my ($self, $org_ids, $setting, $e) = @_;
298 $e ||= $self->{editor};
299 my $c = $self->{ou_setting_cache};
302 for my $org_id (@$org_ids) {
303 next if exists $c->{$org_id}->{$setting};
304 push (@orgs, $org_id);
307 return unless @orgs; # value aready cached for all requested orgs.
310 $U->ou_ancestor_setting_batch_by_org_insecure(\@orgs, $setting, $e);
312 for my $org_id (keys %settings) {
313 $c->{$org_id}->{$setting} = $settings{$org_id}->{value};
317 # -----------------------------------------------------------------------
318 # Knows how to target a single hold.
319 # -----------------------------------------------------------------------
320 package OpenILS::Utils::HoldTargeter::Single;
324 use OpenSRF::AppSession;
325 use OpenSRF::Utils qw/:datetime/;
326 use OpenSRF::Utils::Logger qw(:logger);
327 use OpenILS::Application::AppUtils;
328 use OpenILS::Utils::CStoreEditor qw/:funcs/;
331 my ($class, %args) = @_;
334 editor => new_editor(),
338 return bless($self, $class);
341 # Parent targeter object.
343 my ($self, $parent) = @_;
344 $self->{parent} = $parent if $parent;
345 return $self->{parent};
349 my ($self, $hold_id) = @_;
350 $self->{hold_id} = $hold_id if $hold_id;
351 return $self->{hold_id};
355 my ($self, $hold) = @_;
356 $self->{hold} = $hold if $hold;
357 return $self->{hold};
362 my ($self, $message) = @_;
363 $self->{message} = $message if $message;
364 return $self->{message} || '';
367 # True if the hold was successfully targeted.
369 my ($self, $success) = @_;
370 $self->{success} = $success if defined $success;
371 return $self->{success};
374 # True if targeting exited early on an unrecoverable error.
376 my ($self, $error) = @_;
377 $self->{error} = $error if defined $error;
378 return $self->{error};
383 return $self->{editor};
390 hold => $self->hold_id,
391 error => $self->error,
392 success => $self->success,
393 message => $self->message,
394 target => $self->hold ? $self->hold->current_copy : undef,
395 old_target => $self->{previous_copy_id},
396 found_copy => $self->{found_copy},
397 eligible_copies => $self->{eligible_copy_count}
401 # List of potential copies in the form of slim hashes. This list
402 # evolves as copies are filtered as they are deemed non-targetable.
404 my ($self, $copies) = @_;
405 $self->{copies} = $copies if $copies;
406 return $self->{copies};
409 # Final set of potential copies, including those that may not be
410 # currently targetable, that may be eligible for recall processing.
412 my ($self, $recall_copies) = @_;
413 $self->{recall_copies} = $recall_copies if $recall_copies;
414 return $self->{recall_copies};
417 # Maps copy ID's to their hold proximity
419 my ($self, $copy_prox_map) = @_;
420 $self->{copy_prox_map} = $copy_prox_map if $copy_prox_map;
421 return $self->{copy_prox_map};
425 my ($self, $msg, $err) = @_;
426 my $level = $err ? 'error' : 'info';
427 $logger->$level("targeter: [hold ".$self->hold_id."] $msg");
430 # Captures the exit message, rolls back the cstore transaction/connection,
432 # is_error : log the final message and editor event at ERR level.
434 my ($self, $msg, $is_error) = @_;
436 $self->message($msg);
437 my $log = "exiting => $msg";
440 # On error, roll back and capture the last editor event for logging.
442 my $evt = $self->editor->die_event;
443 $log .= " [".$evt->{textcode}."]" if $evt;
446 $self->log_hold($log, 1);
449 # Attempt a rollback and disconnect when each hold exits
450 # to avoid the possibility of leaving cstore's pinned.
451 # Note: ->rollback is a no-op when a ->commit has already occured.
453 $self->editor->rollback;
454 $self->log_hold($log);
460 # Cancel expired holds and kick off the A/T no-target event. Returns
461 # true (i.e. keep going) if the hold is not expired. Returns false if
462 # the hold is canceled or a non-recoverable error occcurred.
463 sub handle_expired_hold {
465 my $hold = $self->hold;
467 return 1 unless $hold->expire_time;
470 $dt_parser->parse_datetime(cleanse_ISO8601($hold->expire_time));
472 DateTime->compare($ex_time, DateTime->now(time_zone => 'local')) < 0;
476 $hold->cancel_time('now');
477 $hold->cancel_cause(1); # == un-targeted expiration
479 $self->editor->update_action_hold_request($hold)
480 or return $self->exit_targeter("Error canceling hold", 1);
482 $self->editor->commit;
484 # Fire the A/T handler, but don't wait for a response.
485 OpenSRF::AppSession->create('open-ils.trigger')->request(
486 'open-ils.trigger.event.autocreate',
487 'hold_request.cancel.expire_no_target',
488 $hold, $hold->pickup_lib
491 return $self->exit_targeter("Hold is expired");
494 # Find potential copies for hold mapping and targeting.
495 sub get_hold_copies {
497 my $e = $self->editor;
498 my $hold = $self->hold;
500 my $hold_target = $hold->target;
501 my $hold_type = $hold->hold_type;
502 my $org_unit = $hold->selection_ou;
503 my $org_depth = $hold->selection_depth || 0;
507 acp => ['id', 'status', 'circ_lib'],
508 ahr => ['current_copy']
512 # Tag copies that are in use by other holds so we don't
513 # try to target them for our hold.
516 fkey => 'id', # acp.id
517 field => 'current_copy',
519 fulfillment_time => undef,
520 cancel_time => undef,
521 id => {'!=' => $self->hold_id}
533 transform => 'actor.org_unit_descendants',
535 result_field => 'id',
536 params => [$org_depth]
540 where => {id => $org_unit}
547 unless ($hold_type eq 'R' || $hold_type eq 'F') {
548 # Add the holdability filters to the copy query, unless
549 # we're processing a Recall or Force hold, which bypass most
550 # holdability checks.
552 $query->{from}->{acp}->{acpl} = {
554 filter => {holdable => 't', deleted => 'f'},
558 $query->{from}->{acp}->{ccs} = {
560 filter => {holdable => 't'},
564 $query->{where}->{'+acp'}->{holdable} = 't';
565 $query->{where}->{'+acp'}->{mint_condition} = 't'
566 if $U->is_true($hold->mint_condition);
569 unless ($hold_type eq 'C' || $hold_type eq 'I' || $hold_type eq 'P') {
570 # For volume and higher level holds, avoid targeting copies that
571 # act as instances of monograph parts.
572 $query->{from}->{acp}->{acpm} = {
574 field => 'target_copy',
578 $query->{where}->{'+acpm'}->{id} = undef;
581 if ($hold_type eq 'C' || $hold_type eq 'R' || $hold_type eq 'F') {
583 $query->{where}->{'+acp'}->{id} = $hold_target;
585 } elsif ($hold_type eq 'V') {
587 $query->{where}->{'+acp'}->{call_number} = $hold_target;
589 } elsif ($hold_type eq 'P') {
591 $query->{from}->{acp}->{acpm} = {
592 field => 'target_copy',
594 filter => {part => $hold_target},
597 } elsif ($hold_type eq 'I') {
599 $query->{from}->{acp}->{sitem} = {
602 filter => {issuance => $hold_target},
605 } elsif ($hold_type eq 'T') {
607 $query->{from}->{acp}->{acn} = {
609 fkey => 'call_number',
613 filter => {id => $hold_target},
619 } else { # Metarecord hold
621 $query->{from}->{acp}->{acn} = {
623 fkey => 'call_number',
632 filter => {metarecord => $hold_target},
639 if ($hold->holdable_formats) {
640 # Compile the JSON-encoded metarecord holdable formats
641 # to an Intarray query_int string.
642 my $query_int = $e->json_query({
644 'metabib.compile_composite_attr',
645 $hold->holdable_formats
648 # TODO: ^- any way to add this as a filter in the main query?
651 # Only pull potential copies from records that satisfy
652 # the holdable formats query.
653 my $qint = $query_int->{'metabib.compile_composite_attr'};
654 $query->{from}->{acp}->{acn}->{join}->{bre}->{join}->{mravl} = {
657 filter => {vlist => {'@@' => $qint}}
663 my $copies = $e->json_query($query);
664 $self->{eligible_copy_count} = scalar(@$copies);
666 $self->log_hold($self->{eligible_copy_count}." potential copies");
668 # Let the caller know we encountered the copy they were interested in.
669 $self->{found_copy} = 1 if $self->{find_copy}
670 && grep {$_->{id} eq $self->{find_copy}} @$copies;
672 $self->copies($copies);
677 # Delete and rebuild copy maps
678 sub update_copy_maps {
680 my $e = $self->editor;
682 my $resp = $e->json_query({from => [
683 'action.hold_request_regen_copy_maps',
685 '{' . join(',', map {$_->{id}} @{$self->copies}) . '}'
688 # The above call can fail if another process is updating
689 # copy maps for this hold at the same time.
690 return 1 if $resp && @$resp;
692 return $self->exit_targeter("Error creating hold copy maps", 1);
695 # unique set of circ lib IDs for all in-progress copy blobs.
696 sub get_copy_circ_libs {
698 my %orgs = map {$_->{circ_lib} => 1} @{$self->copies};
703 # Returns a map of proximity values to arrays of copy hashes.
704 # The copy hash arrays are weighted consistent with the org unit hold
705 # target weight, meaning that a given copy may appear more than once
706 # in its proximity list.
707 sub compile_weighted_proximity_map {
710 # Collect copy proximity info (generated via DB trigger)
711 # from our newly create copy maps.
712 my $hold_copy_maps = $self->editor->json_query({
713 select => {ahcm => ['target_copy', 'proximity']},
715 where => {hold => $self->hold_id}
719 map {$_->{target_copy} => $_->{proximity}} @$hold_copy_maps;
721 # Pre-fetch the org setting value for all circ libs so that
722 # later calls can reference the cached value.
723 $self->parent->precache_batch_ou_settings($self->get_copy_circ_libs,
724 'circ.holds.org_unit_target_weight', $self->editor);
727 for my $copy_hash (@{$self->copies}) {
728 my $prox = $copy_prox_map{$copy_hash->{id}};
729 $prox_map{$prox} ||= [];
731 my $weight = $self->parent->get_ou_setting(
732 $copy_hash->{circ_lib},
733 'circ.holds.org_unit_target_weight', $self->editor) || 1;
735 # Each copy is added to the list once per target weight.
736 push(@{$prox_map{$prox}}, $copy_hash) foreach (1 .. $weight);
739 return $self->{weighted_prox_map} = \%prox_map;
742 # Returns true if filtering completed without error, false otherwise.
743 sub filter_closed_date_copies {
746 # Pre-fetch the org setting value for all represented circ libs that
747 # are closed, minuse the pickup_lib, since it has its own special setting.
748 my $circ_libs = $self->get_copy_circ_libs;
751 $self->parent->{closed_orgs}->{$_} &&
752 $_ ne $self->hold->pickup_lib
756 # If none of the represented circ libs are closed, we're done here.
757 return 1 unless @$circ_libs;
759 $self->parent->precache_batch_ou_settings(
760 $circ_libs, 'circ.holds.target_when_closed', $self->editor);
763 for my $copy_hash (@{$self->copies}) {
764 my $clib = $copy_hash->{circ_lib};
766 if ($self->parent->{closed_orgs}->{$clib}) {
767 # Org unit is currently closed. See if it matters.
769 my $ous = $self->hold->pickup_lib eq $clib ?
770 'circ.holds.target_when_closed_if_at_pickup_lib' :
771 'circ.holds.target_when_closed';
774 $self->parent->get_ou_setting($clib, $ous, $self->editor)) {
775 # Targeting not allowed at this circ lib when its closed
777 $self->log_hold("skipping copy ".
778 $copy_hash->{id}." at closed org $clib");
785 push(@filtered_copies, $copy_hash);
788 # Update our in-progress list of copies to reflect the filtered set.
789 $self->copies(\@filtered_copies);
794 # Limit the set of potential copies to those that are
795 # in a targetable status.
796 # Returns true if filtering completes without error, false otherwise.
797 sub filter_copies_by_status {
801 grep {$_->{status} == 0 || $_->{status} == 7} @{$self->copies}
804 # Track checked out copies for later recall
805 $self->recall_copies([grep {$_->{status} == 1} @{$self->copies}]);
810 # Remove copies that are currently targeted by other holds.
811 # Returns true if filtering completes without error, false otherwise.
812 sub filter_copies_in_use {
815 # A copy with a 'current_copy' value means it's in use by another hold.
817 grep {!$_->{current_copy}} @{$self->copies}
823 # Returns true if inspection completed without error, false otherwise.
824 sub inspect_previous_target {
826 my $hold = $self->hold;
827 my @copies = @{$self->copies};
830 return 1 unless my $prev_id = $hold->current_copy;
832 $self->{previous_copy_id} = $prev_id;
834 # See if the previous copy is in our list of valid copies.
835 my ($prev) = grep {$_->{id} eq $prev_id} @copies;
837 # exit if previous target is no longer valid.
838 return 1 unless $prev;
840 my $soft_retarget = 0;
842 if ($self->parent->{soft_retarget_time}) {
843 # A hold is soft-retarget-able if its prev_check_time is
844 # later then the retarget_time, i.e. it sits between the
845 # soft_retarget_time and the retarget_time.
847 my $pct = $dt_parser->parse_datetime(
848 cleanse_ISO8601($hold->prev_check_time));
851 DateTime->compare($pct, $self->parent->{retarget_time}) > 0;
854 if ($soft_retarget) {
856 # In soft-retarget mode, if the existing copy is still a valid
857 # target for the hold, exit early.
858 if ($self->copy_is_permitted($prev)) {
860 # Commit to persist the updated action.hold_copy_map's
861 $self->editor->commit;
863 return $self->exit_targeter(
864 "Exiting early on soft-retarget with viable copy = $prev_id");
867 $self->log_hold("soft retarget failed because copy $prev_id is ".
868 "no longer targetable for this hold. Retargeting...");
873 # Previous copy /may/ be targetable. Keep it around for later
874 # in case we need to confirm its viability and re-use it.
875 $self->{valid_previous_copy} = $prev;
878 # Remove the previous copy from the working set of potential copies.
879 # It will be revisited later if needed.
880 $self->copies([grep {$_->{id} ne $prev_id} @copies]);
885 # Returns true if we have at least one potential copy remaining, thus
886 # targeting should continue. Otherwise, the hold is updated to reflect
887 # that there is no target and returns false to stop targeting.
888 sub handle_no_copies {
889 my ($self, %args) = @_;
892 # If 'force' is set, the caller is saying that all copies have
893 # failed. Otherwise, see if we have any copies left to inspect.
894 return 1 if @{$self->copies} || $self->{valid_previous_copy};
897 # At this point, all copies have been inspected and none
898 # have yielded a targetable item.
900 if ($args{process_recalls}) {
901 # See if we have any copies/circs to recall.
902 return unless $self->process_recalls;
905 my $hold = $self->hold;
906 $hold->clear_current_copy;
907 $hold->prev_check_time('now');
909 $self->editor->update_action_hold_request($hold)
910 or return $self->exit_targeter("Error updating hold request", 1);
912 $self->editor->commit;
913 return $self->exit_targeter("Hold has no targetable copies");
916 # Force and recall holds bypass validity tests. Returns the first
917 # (and presumably only) copy in our list of valid copies when a
918 # F or R hold is encountered. Returns undef otherwise.
919 sub attempt_force_recall_target {
921 return $self->copies->[0] if
922 $self->hold->hold_type eq 'R' || $self->hold->hold_type eq 'F';
926 sub attempt_to_find_copy {
929 return undef unless @{$self->copies};
931 my $max_loops = $self->parent->get_ou_setting(
932 $self->hold->pickup_lib,
933 'circ.holds.max_org_unit_target_loops',
937 return $self->target_by_org_loops($max_loops) if $max_loops;
939 # When not using target loops, targeting is based solely on
940 # proximity and org unit target weight.
941 $self->compile_weighted_proximity_map;
943 return $self->find_nearest_copy;
946 # Returns 2 arrays. The first is a list of copies whose circ lib's
947 # unfulfilled target count matches the provided $iter value. The
948 # second list is all other copies, returned for convenience.
949 sub get_copies_at_loop_iter {
950 my ($self, $targeted_libs, $iter) = @_;
952 my @iter_copies; # copies to try now.
953 my @remaining_copies; # copies to try later
955 for my $copy (@{$self->copies}) {
959 # Start with copies at circ libs that have never been targeted.
960 $match = 1 unless grep {
961 $copy->{circ_lib} eq $_->{circ_lib}} @$targeted_libs;
964 # Find copies at branches whose target count
965 # matches the current (non-zero) loop depth.
968 $_->{count} eq $iter &&
969 $_->{circ_lib} eq $copy->{circ_lib}
974 push(@iter_copies, $copy);
976 push(@remaining_copies, $copy);
981 sprintf("%d potential copies at max-loops iteration level $iter. ".
982 "%d remain to be tested at a higher loop iteration level.",
983 scalar(@iter_copies),
984 scalar(@remaining_copies)
988 return (\@iter_copies, \@remaining_copies);
991 # Find libs whose unfulfilled target count is less than the maximum
992 # configured loop count. Target copies in order of their circ_lib's
993 # target count (starting at 0) and moving up. Copies within each
994 # loop count group are weighted based on configured hold weight. If
995 # no copies in a given group are targetable, move up to the next
996 # unfulfilled target level. Keep doing this until all potential
997 # copies have been tried or max targets loops is exceeded.
998 # Returns a targetable copy if one is found, undef otherwise.
999 sub target_by_org_loops {
1000 my ($self, $max_loops) = @_;
1002 my $targeted_libs = $self->editor->json_query({
1003 select => {aufhl => ['circ_lib', 'count']},
1005 where => {hold => $self->hold_id},
1006 order_by => [{class => 'aufhl', field => 'count'}]
1009 my $max_tried = 0; # Highest per-lib target attempts.
1010 foreach (@$targeted_libs) {
1011 $max_tried = $_->{count} if $_->{count} > $max_tried;
1014 $self->log_hold("Max lib attempts is $max_tried. ".
1015 scalar(@$targeted_libs)." libs have been targeted at least once.");
1017 # $loop_iter represents per-lib target attemtps already made.
1018 # When loop_iter equals max loops, all libs with targetable copies
1019 # have been targeted the maximum number of times. loop_iter starts
1020 # at 0 to pick up libs that have never been targeted.
1022 while (++$loop_iter < $max_loops) {
1024 # Ran out of copies to try before exceeding max target loops.
1025 # Nothing else to do here.
1026 return undef unless @{$self->copies};
1028 my ($iter_copies, $remaining_copies) =
1029 $self->get_copies_at_loop_iter($targeted_libs, $loop_iter);
1031 next unless @$iter_copies;
1033 $self->copies($iter_copies);
1035 # Update the proximity map to only include the copies
1036 # from this loop-depth iteration.
1037 $self->compile_weighted_proximity_map;
1039 my $copy = $self->find_nearest_copy;
1040 return $copy if $copy; # found one!
1042 # No targetable copy at the current target loop.
1043 # Update our current copy set to the not-yet-tested copies.
1044 $self->copies($remaining_copies);
1047 # Avoid canceling the hold with exceeds-loops unless at least one
1048 # lib has been targeted max_loops times. Otherwise, the hold goes
1049 # back to waiting for another copy (or retargets its current copy).
1050 return undef if $max_tried < $max_loops;
1052 # At least one lib has been targeted max-loops times and zero
1053 # other copies are targetable. All options have been exhausted.
1054 return $self->handle_exceeds_target_loops;
1057 # Cancel the hold, fire the no-target A/T event handler, and exit.
1058 sub handle_exceeds_target_loops {
1060 my $e = $self->editor;
1061 my $hold = $self->hold;
1063 $hold->cancel_time('now');
1064 $hold->cancel_cause(1); # = un-targeted expiration
1066 $e->update_action_hold_request($hold)
1067 or return $self->exit_targeter("Error updating hold request", 1);
1071 # Fire the A/T handler, but don't wait for a response.
1072 OpenSRF::AppSession->create('open-ils.trigger')->request(
1073 'open-ils.trigger.event.autocreate',
1074 'hold_request.cancel.expire_no_target',
1075 $hold, $hold->pickup_lib
1078 return $self->exit_targeter("Hold exceeded max target loops");
1081 # When all else fails, see if we can reuse the previously targeted copy.
1082 sub attempt_prev_copy_retarget {
1085 # earlier target logic can in some cases cancel the hold.
1086 return undef if $self->hold->cancel_time;
1088 my $prev_copy = $self->{valid_previous_copy};
1089 return undef unless $prev_copy;
1091 $self->log_hold("attempting to re-target previously ".
1092 "targeted copy for hold ".$self->hold_id);
1094 if ($self->copy_is_permitted($prev_copy)) {
1095 $self->log_hold("retargeting the previously ".
1096 "targeted copy [".$prev_copy->{id}."]" );
1103 # Returns the closest copy by proximity that is a confirmed valid
1105 sub find_nearest_copy {
1107 my %prox_map = %{$self->{weighted_prox_map}};
1108 my $hold = $self->hold;
1111 # Pick a copy at random from each tier of the proximity map,
1112 # starting at the lowest proximity and working up, until a
1113 # copy is found that is suitable for targeting.
1114 for my $prox (sort {$a <=> $b} keys %prox_map) {
1115 my @copies = @{$prox_map{$prox}};
1116 next unless @copies;
1118 my $rand = int(rand(scalar(@copies)));
1120 while (my ($c) = splice(@copies, $rand, 1)) {
1121 $rand = int(rand(scalar(@copies)));
1122 next if $seen{$c->{id}};
1124 return $c if $self->copy_is_permitted($c);
1125 $seen{$c->{id}} = 1;
1127 last unless(@copies);
1134 # Returns true if the provided copy passes the hold permit test for our
1135 # hold and can be used for targeting.
1136 # When a copy fails the test, it is removed from $self->copies.
1137 sub copy_is_permitted {
1138 my ($self, $copy) = @_;
1139 return 0 unless $copy;
1141 my $resp = $self->editor->json_query({
1143 'action.hold_retarget_permit_test',
1144 $self->hold->pickup_lib,
1145 $self->hold->request_lib,
1148 $self->hold->requestor
1152 return 1 if $U->is_true($resp->[0]->{success});
1154 # Copy is confirmed non-viable.
1155 # Remove it from our potentials list.
1157 grep {$_->{id} ne $copy->{id}} @{$self->copies}
1163 # Sets hold.current_copy to the provided copy.
1164 sub apply_copy_target {
1165 my ($self, $copy) = @_;
1166 my $e = $self->editor;
1167 my $hold = $self->hold;
1169 $hold->current_copy($copy->{id});
1170 $hold->prev_check_time('now');
1172 $e->update_action_hold_request($hold)
1173 or return $self->exit_targeter("Error updating hold request", 1);
1176 $self->{success} = 1;
1177 return $self->exit_targeter("successfully targeted copy ".$copy->{id});
1180 # Creates a new row in action.unfulfilled_hold_list for our hold.
1181 # Returns 1 if all is OK, false on error.
1182 sub log_unfulfilled_hold {
1184 return 1 unless my $prev_id = $self->{previous_copy_id};
1185 my $e = $self->editor;
1188 "hold was not fulfilled by previous targeted copy $prev_id");
1191 if ($self->{valid_previous_copy}) {
1192 $circ_lib = $self->{valid_previous_copy}->{circ_lib};
1195 # We don't have a handle on the previous copy to get its
1196 # circ lib. Fetch it.
1197 $circ_lib = $e->retrieve_asset_copy($prev_id)->circ_lib;
1200 my $unful = Fieldmapper::action::unfulfilled_hold_list->new;
1201 $unful->hold($self->hold_id);
1202 $unful->circ_lib($circ_lib);
1203 $unful->current_copy($prev_id);
1205 $e->create_action_unfulfilled_hold_list($unful) or
1206 return $self->exit_targeter("Error creating unfulfilled_hold_list", 1);
1211 sub process_recalls {
1213 my $e = $self->editor;
1215 my $pu_lib = $self->hold->pickup_lib;
1218 $self->parent->get_ou_setting(
1219 $pu_lib, 'circ.holds.recall_threshold', $self->editor)
1223 $self->parent->get_ou_setting(
1224 $pu_lib, 'circ.holds.recall_return_interval', $self->editor)
1227 # Give me the ID of every checked out copy living at the hold
1229 my @copy_ids = map {$_->{id}}
1230 grep {$_->{circ_lib} eq $pu_lib} @{$self->recall_copies};
1232 return 1 unless @copy_ids;
1234 my $circ = $e->search_action_circulation([
1235 { target_copy => \@copy_ids,
1236 checkin_time => undef,
1237 duration => {'>' => $threshold}
1239 order_by => 'due_date',
1244 return unless $circ;
1246 $self->log_hold("recalling circ ".$circ->id);
1248 # Give the user a new due date of either a full recall threshold,
1249 # or the return interval, whichever is further in the future.
1250 my $threshold_date = DateTime::Format::ISO8601
1251 ->parse_datetime(cleanse_ISO8601($circ->xact_start))
1252 ->add(seconds => interval_to_seconds($threshold))
1255 my $return_date = DateTime->now(time_zone => 'local')->add(
1256 seconds => interval_to_seconds($interval))->iso8601();
1258 if (DateTime->compare(
1259 DateTime::Format::ISO8601->parse_datetime($threshold_date),
1260 DateTime::Format::ISO8601->parse_datetime($return_date)) == 1) {
1261 $return_date = $threshold_date;
1264 my %update_fields = (
1265 due_date => $return_date,
1266 renewal_remaining => 0,
1270 $self->parent->get_ou_setting(
1271 $pu_lib, 'circ.holds.recall_fine_rules', $self->editor);
1273 # If the OU hasn't defined new fine rules for recalls, keep them
1276 $self->log_hold("applying recall fine rules: $fine_rules");
1277 my $rules = OpenSRF::Utils::JSON->JSON2perl($fine_rules);
1278 $update_fields{recurring_fine} = $rules->[0];
1279 $update_fields{fine_interval} = $rules->[1];
1280 $update_fields{max_fine} = $rules->[2];
1283 # Copy updated fields into circ object.
1284 $circ->$_($update_fields{$_}) for keys %update_fields;
1286 $e->update_action_circulation($circ)
1287 or return $self->exit_targeter(
1288 "Error updating circulation object in process_recalls", 1);
1290 # Create trigger event for notifying current user
1291 my $ses = OpenSRF::AppSession->create('open-ils.trigger');
1292 $ses->request('open-ils.trigger.event.autocreate',
1293 'circ.recall.target', $circ, $circ->circ_lib);
1298 # Target a single hold request
1300 my ($self, $hold_id) = @_;
1302 my $e = $self->editor;
1303 $self->hold_id($hold_id);
1305 $self->log_hold("processing...");
1309 my $hold = $e->retrieve_action_hold_request($hold_id)
1310 or return $self->exit_targeter("No hold found", 1);
1312 return $self->exit_targeter("Hold is not eligible for targeting")
1313 if $hold->capture_time ||
1314 $hold->cancel_time ||
1315 $hold->fulfillment_time ||
1316 $U->is_true($hold->frozen);
1320 return unless $self->handle_expired_hold;
1321 return unless $self->get_hold_copies;
1322 return unless $self->update_copy_maps;
1324 # Confirm that we have something to work on. If we have no
1325 # copies at this point, there's also nothing to recall.
1326 return unless $self->handle_no_copies;
1328 # Trim the set of working copies down to those that are
1329 # currently targetable.
1330 return unless $self->filter_copies_by_status;
1331 return unless $self->filter_copies_in_use;
1332 return unless $self->filter_closed_date_copies;
1334 # Set aside the previously targeted copy for later use as needed.
1335 # Code may exit here in skip_viable mode if the existing
1336 # current_copy value is still viable.
1337 return unless $self->inspect_previous_target;
1339 # Log that the hold was not captured.
1340 return unless $self->log_unfulfilled_hold;
1342 # Confirm again we have something to work on. If we have no
1343 # targetable copies now, there may be a copy that can be recalled.
1344 return unless $self->handle_no_copies(process_recalls => 1);
1346 # At this point, the working list of copies has been trimmed to
1347 # those that are currently targetable at a superficial level.
1348 # (They are holdable and available). Now the code steps through
1349 # these copies in order of priority and pickup lib proximity to
1350 # find a copy that is confirmed targetable by policy.
1352 my $copy = $self->attempt_force_recall_target ||
1353 $self->attempt_to_find_copy ||
1354 $self->attempt_prev_copy_retarget;
1356 # See if one of the above attempt* calls canceled the hold as a side
1357 # effect of looking for a copy to target.
1358 return if $hold->cancel_time;
1360 return $self->apply_copy_target($copy) if $copy;
1362 # No targetable copy was found. Fire the no-copy handler.
1363 $self->handle_no_copies(force => 1, process_recalls => 1);