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look at the master DB for brand new hold objects
[Evergreen.git] / Open-ILS / src / perlmods / OpenILS / Application / Storage / Publisher / action.pm
1 package OpenILS::Application::Storage::Publisher::action;
2 use base qw/OpenILS::Application::Storage::Publisher/;
3 use OpenSRF::Utils::Logger qw/:level/;
4 use OpenSRF::Utils qw/:datetime/;
5 use OpenSRF::AppSession;
6 use OpenSRF::EX qw/:try/;
7 use OpenILS::Utils::Fieldmapper;
8 use OpenILS::Utils::PermitHold;
9 use DateTime;
10 use DateTime::Format::ISO8601;
11
12 sub isTrue {
13         my $v = shift;
14         return 1 if ($v == 1);
15         return 1 if ($v =~ /^t/io);
16         return 1 if ($v =~ /^y/io);
17         return 0;
18 }
19
20 my $parser = DateTime::Format::ISO8601->new;
21 my $log = 'OpenSRF::Utils::Logger';
22
23 sub open_noncat_circs {
24         my $self = shift;
25         my $client = shift;
26         my $user = shift;
27
28         my $a = action::non_cataloged_circulation->table;
29         my $c = config::non_cataloged_type->table;
30
31         my $sql = <<"   SQL";
32                 SELECT  a.id
33                   FROM  $a a
34                         JOIN $c c ON (a.item_type = c.id)
35                   WHERE a.circ_time + c.circ_duration > current_timestamp
36                         AND a.patron = ?
37         SQL
38
39         return action::non_cataloged_circulation->db_Main->selectcol_arrayref($sql, {}, $user);
40 }
41 __PACKAGE__->register_method(
42         api_name        => 'open-ils.storage.action.open_non_cataloged_circulation.user',
43         api_level       => 1,
44         argc            => 1,
45         method          => 'open_noncat_circs',
46 );
47
48
49 sub ou_hold_requests {
50         my $self = shift;
51         my $client = shift;
52         my $ou = shift;
53
54         my $h_table = action::hold_request->table;
55         my $c_table = asset::copy->table;
56         my $o_table = actor::org_unit->table;
57
58         my $SQL = <<"   SQL";
59                 SELECT  h.id
60                   FROM  $h_table h
61                         JOIN $c_table cp ON (cp.id = h.current_copy)
62                         JOIN $o_table ou ON (ou.id = cp.circ_lib)
63                   WHERE ou.id = ?
64                         AND h.capture_time IS NULL
65                         AND h.cancel_time IS NULL
66                   ORDER BY h.request_time
67         SQL
68
69         my $sth = action::hold_request->db_Main->prepare_cached($SQL);
70         $sth->execute($ou);
71
72         $client->respond($_) for (
73                 map {
74                         $self
75                                 ->method_lookup('open-ils.storage.direct.action.hold_request.retrieve')
76                                 ->run($_)
77                 } map {
78                         $_->[0]
79                 } @{ $sth->fetchall_arrayref }
80         );
81         return undef;
82 }
83 __PACKAGE__->register_method(
84         api_name        => 'open-ils.storage.action.targeted_hold_request.org_unit',
85         api_level       => 1,
86         argc            => 1,
87         stream          => 1,
88         method          => 'ou_hold_requests',
89 );
90
91
92 sub overdue_circs {
93         my $grace = shift;
94
95         my $c_t = action::circulation->table;
96
97         $grace = " - ($grace * (fine_interval))" if ($grace);
98
99         my $sql = <<"   SQL";
100                 SELECT  *
101                   FROM  $c_t
102                   WHERE stop_fines IS NULL
103                         AND due_date < ( CURRENT_TIMESTAMP $grace)
104         SQL
105
106         my $sth = action::circulation->db_Main->prepare_cached($sql);
107         $sth->execute;
108
109         return ( map { action::circulation->construct($_) } $sth->fetchall_hash );
110
111 }
112
113 sub complete_reshelving {
114         my $self = shift;
115         my $client = shift;
116         my $window = shift;
117
118         local $OpenILS::Application::Storage::WRITE = 1;
119
120         throw OpenSRF::EX::InvalidArg ("I need an interval of more than 0 seconds!")
121                 unless (interval_to_seconds( $window ));
122
123         my $circ = action::circulation->table;
124         my $cp = asset::copy->table;
125
126         my $sql = <<"   SQL";
127                 UPDATE  $cp
128                   SET   status = 0
129                   WHERE id IN
130                         ( SELECT id FROM (
131                                 SELECT  cp.id, MAX(circ.checkin_time)
132                                   FROM  $cp cp
133                                         JOIN $circ circ ON (circ.target_copy = cp.id)
134                                   WHERE circ.checkin_time IS NOT NULL
135                                         AND cp.status = 7
136                                   GROUP BY 1
137                                         HAVING MAX(circ.checkin_time) < NOW() - CAST(? AS INTERVAL)
138                           ) AS foo
139                         )
140                         OR id IN
141                         ( SELECT        cp.id
142                             FROM        $cp cp 
143                                         LEFT JOIN $circ circ ON (circ.target_copy = cp.id AND circ.id IS NULL)
144                             WHERE       cp.status = 7
145                                         AND cp.create_date < NOW() - CAST(? AS INTERVAL)
146                         )
147         SQL
148
149         my $sth = action::circulation->db_Main->prepare_cached($sql);
150         $sth->execute($window, $window);
151
152         return $sth->rows;
153
154 }
155 __PACKAGE__->register_method(
156         api_name        => 'open-ils.storage.action.circulation.reshelving.complete',
157         api_level       => 1,
158         stream          => 1,
159         argc            => 1,
160         method          => 'complete_reshelving',
161 );
162
163 sub grab_overdue {
164         my $self = shift;
165         my $client = shift;
166         my $grace = shift || '';
167
168         $client->respond( $_->to_fieldmapper ) for ( overdue_circs($grace) );
169
170         return undef;
171
172 }
173 __PACKAGE__->register_method(
174         api_name        => 'open-ils.storage.action.circulation.overdue',
175         api_level       => 1,
176         stream          => 1,
177         method          => 'grab_overdue',
178 );
179
180 sub nearest_hold {
181         my $self = shift;
182         my $client = shift;
183         my $pl = shift;
184         my $cp = shift;
185         my $limit = int(shift()) || 10;
186
187         my ($id) = action::hold_request->db_Main->selectrow_array(<<"   SQL", {}, $cp, $pl);
188                 SELECT  h.id
189                   FROM  action.hold_request h
190                         JOIN action.hold_copy_map hm ON (hm.hold = h.id)
191                         JOIN actor.org_unit_proximity p ON (p.from_org = h.pickup_lib)
192                   WHERE hm.target_copy = ?
193                         AND p.to_org = ?
194                         AND h.capture_time IS NULL
195                         AND h.cancel_time IS NULL
196                 ORDER BY
197                         p.prox,
198                         h.selection_depth DESC,
199                         h.request_time
200                 LIMIT $limit
201         SQL
202         return $id;
203 }
204 __PACKAGE__->register_method(
205         api_name        => 'open-ils.storage.action.hold_request.nearest_hold',
206         api_level       => 1,
207         stream          => 1,
208         method          => 'nearest_hold',
209 );
210
211 sub next_resp_group_id {
212         my $self = shift;
213         my $client = shift;
214
215         # XXX This is not replication safe!!!
216
217         my ($id) = action::survey->db_Main->selectrow_array(<<" SQL");
218                 SELECT NEXTVAL('action.survey_response_group_id_seq'::TEXT)
219         SQL
220         return $id;
221 }
222 __PACKAGE__->register_method(
223         api_name        => 'open-ils.storage.action.survey_response.next_group_id',
224         api_level       => 1,
225         method          => 'next_resp_group_id',
226 );
227
228 sub patron_circ_summary {
229         my $self = shift;
230         my $client = shift;
231         my $id = ''.shift();
232
233         return undef unless ($id);
234         my $c_table = action::circulation->table;
235         my $b_table = money::billing->table;
236
237         $log->debug("Retrieving patron summary for id $id", DEBUG);
238
239         my $select = <<"        SQL";
240                 SELECT  COUNT(DISTINCT c.id), SUM( COALESCE(b.amount,0) )
241                   FROM  $c_table c
242                         LEFT OUTER JOIN $b_table b ON (c.id = b.xact AND b.voided = FALSE)
243                   WHERE c.usr = ?
244                         AND c.xact_finish IS NULL
245                         AND (
246                                 c.stop_fines NOT IN ('CLAIMSRETURNED','LOST')
247                                 OR c.stop_fines IS NULL
248                         )
249         SQL
250
251         return action::survey->db_Main->selectrow_arrayref($select, {}, $id);
252 }
253 __PACKAGE__->register_method(
254         api_name        => 'open-ils.storage.action.circulation.patron_summary',
255         api_level       => 1,
256         method          => 'patron_circ_summary',
257 );
258
259 #XXX Fix stored proc calls
260 sub find_local_surveys {
261         my $self = shift;
262         my $client = shift;
263         my $ou = ''.shift();
264
265         return undef unless ($ou);
266         my $s_table = action::survey->table;
267
268         my $select = <<"        SQL";
269                 SELECT  s.*
270                   FROM  $s_table s
271                         JOIN actor.org_unit_full_path(?) p ON (p.id = s.owner)
272                   WHERE CURRENT_TIMESTAMP BETWEEN s.start_date AND s.end_date
273         SQL
274
275         my $sth = action::survey->db_Main->prepare_cached($select);
276         $sth->execute($ou);
277
278         $client->respond( $_->to_fieldmapper ) for ( map { action::survey->construct($_) } $sth->fetchall_hash );
279
280         return undef;
281 }
282 __PACKAGE__->register_method(
283         api_name        => 'open-ils.storage.action.survey.all',
284         api_level       => 1,
285         stream          => 1,
286         method          => 'find_local_surveys',
287 );
288
289 #XXX Fix stored proc calls
290 sub find_opac_surveys {
291         my $self = shift;
292         my $client = shift;
293         my $ou = ''.shift();
294
295         return undef unless ($ou);
296         my $s_table = action::survey->table;
297
298         my $select = <<"        SQL";
299                 SELECT  s.*
300                   FROM  $s_table s
301                         JOIN actor.org_unit_full_path(?) p ON (p.id = s.owner)
302                   WHERE CURRENT_TIMESTAMP BETWEEN s.start_date AND s.end_date
303                         AND s.opac IS TRUE;
304         SQL
305
306         my $sth = action::survey->db_Main->prepare_cached($select);
307         $sth->execute($ou);
308
309         $client->respond( $_->to_fieldmapper ) for ( map { action::survey->construct($_) } $sth->fetchall_hash );
310
311         return undef;
312 }
313 __PACKAGE__->register_method(
314         api_name        => 'open-ils.storage.action.survey.opac',
315         api_level       => 1,
316         stream          => 1,
317         method          => 'find_opac_surveys',
318 );
319
320 sub hold_pull_list {
321         my $self = shift;
322         my $client = shift;
323         my $ou = shift;
324         my $limit = shift || 10;
325         my $offset = shift || 0;
326
327         return undef unless ($ou);
328         my $h_table = action::hold_request->table;
329         my $a_table = asset::copy->table;
330
331         my $idlist = 1 if ($self->api_name =~/id_list/o);
332
333         my $select = <<"        SQL";
334                 SELECT  h.*
335                   FROM  $h_table h
336                         JOIN $a_table a ON (h.current_copy = a.id)
337                   WHERE a.circ_lib = ?
338                         AND h.capture_time IS NULL
339                         AND h.cancel_time IS NULL
340                   ORDER BY h.request_time ASC
341                   LIMIT $limit
342                   OFFSET $offset
343         SQL
344
345         my $sth = action::survey->db_Main->prepare_cached($select);
346         $sth->execute($ou);
347
348         if ($idlist) {
349                 $client->respond( $_->{id} ) for ( $sth->fetchall_hash );
350         } else {
351                 $client->respond( $_->to_fieldmapper ) for ( map { action::hold_request->construct($_) } $sth->fetchall_hash );
352         }
353
354         return undef;
355 }
356 __PACKAGE__->register_method(
357         api_name        => 'open-ils.storage.direct.action.hold_request.pull_list.id_list.current_copy_circ_lib',
358         api_level       => 1,
359         stream          => 1,
360         signature       => [
361                 "Returns the hold ids for a specific library's pull list.",
362                 [ [org_unit => "The library's org id", "number"],
363                   [limit => 'An optional page size, defaults to 10', 'number'],
364                   [offset => 'Offset for paging, defaults to 0, 0 based', 'number'],
365                 ],
366                 ['A list of holds for the stated library to pull for', 'array']
367         ],
368         method          => 'hold_pull_list',
369 );
370 __PACKAGE__->register_method(
371         api_name        => 'open-ils.storage.direct.action.hold_request.pull_list.search.current_copy_circ_lib',
372         api_level       => 1,
373         stream          => 1,
374         signature       => [
375                 "Returns the holds for a specific library's pull list.",
376                 [ [org_unit => "The library's org id", "number"],
377                   [limit => 'An optional page size, defaults to 10', 'number'],
378                   [offset => 'Offset for paging, defaults to 0, 0 based', 'number'],
379                 ],
380                 ['A list of holds for the stated library to pull for', 'array']
381         ],
382         method          => 'hold_pull_list',
383 );
384
385 sub find_optional_surveys {
386         my $self = shift;
387         my $client = shift;
388         my $ou = ''.shift();
389
390         return undef unless ($ou);
391         my $s_table = action::survey->table;
392
393         my $select = <<"        SQL";
394                 SELECT  s.*
395                   FROM  $s_table s
396                         JOIN actor.org_unit_full_path(?) p ON (p.id = s.owner)
397                   WHERE CURRENT_TIMESTAMP BETWEEN s.start_date AND s.end_date
398                         AND s.required IS FALSE;
399         SQL
400
401         my $sth = action::survey->db_Main->prepare_cached($select);
402         $sth->execute($ou);
403
404         $client->respond( $_->to_fieldmapper ) for ( map { action::survey->construct($_) } $sth->fetchall_hash );
405
406         return undef;
407 }
408 __PACKAGE__->register_method(
409         api_name        => 'open-ils.storage.action.survey.optional',
410         api_level       => 1,
411         stream          => 1,
412         method          => 'find_optional_surveys',
413 );
414
415 sub find_required_surveys {
416         my $self = shift;
417         my $client = shift;
418         my $ou = ''.shift();
419
420         return undef unless ($ou);
421         my $s_table = action::survey->table;
422
423         my $select = <<"        SQL";
424                 SELECT  s.*
425                   FROM  $s_table s
426                         JOIN actor.org_unit_full_path(?) p ON (p.id = s.owner)
427                   WHERE CURRENT_TIMESTAMP BETWEEN s.start_date AND s.end_date
428                         AND s.required IS TRUE;
429         SQL
430
431         my $sth = action::survey->db_Main->prepare_cached($select);
432         $sth->execute($ou);
433
434         $client->respond( $_->to_fieldmapper ) for ( map { action::survey->construct($_) } $sth->fetchall_hash );
435
436         return undef;
437 }
438 __PACKAGE__->register_method(
439         api_name        => 'open-ils.storage.action.survey.required',
440         api_level       => 1,
441         stream          => 1,
442         method          => 'find_required_surveys',
443 );
444
445 sub find_usr_summary_surveys {
446         my $self = shift;
447         my $client = shift;
448         my $ou = ''.shift();
449
450         return undef unless ($ou);
451         my $s_table = action::survey->table;
452
453         my $select = <<"        SQL";
454                 SELECT  s.*
455                   FROM  $s_table s
456                         JOIN actor.org_unit_full_path(?) p ON (p.id = s.owner)
457                   WHERE CURRENT_TIMESTAMP BETWEEN s.start_date AND s.end_date
458                         AND s.usr_summary IS TRUE;
459         SQL
460
461         my $sth = action::survey->db_Main->prepare_cached($select);
462         $sth->execute($ou);
463
464         $client->respond( $_->to_fieldmapper ) for ( map { action::survey->construct($_) } $sth->fetchall_hash );
465
466         return undef;
467 }
468 __PACKAGE__->register_method(
469         api_name        => 'open-ils.storage.action.survey.usr_summary',
470         api_level       => 1,
471         stream          => 1,
472         method          => 'find_usr_summary_surveys',
473 );
474
475
476 sub generate_fines {
477         my $self = shift;
478         my $client = shift;
479         my $grace = shift;
480         my $circ = shift;
481         my $overbill = shift;
482
483         local $OpenILS::Application::Storage::WRITE = 1;
484
485         my @circs;
486         if ($circ) {
487                 push @circs, action::circulation->search_where( { id => $circ, stop_fines => undef } );
488         } else {
489                 push @circs, overdue_circs($grace);
490         }
491
492         my %hoo = map { ( $_->id => $_ ) } actor::org_unit::hours_of_operation->retrieve_all;
493
494         my $penalty = OpenSRF::AppSession->create('open-ils.penalty');
495         for my $c (@circs) {
496         
497                 try {
498                         if ($self->method_lookup('open-ils.storage.transaction.current')->run) {
499                                 $log->debug("Cleaning up after previous transaction\n");
500                                 $self->method_lookup('open-ils.storage.transaction.rollback')->run;
501                         }
502                         $self->method_lookup('open-ils.storage.transaction.begin')->run( $client );
503                         $log->info("Processing circ ".$c->id."...\n");
504
505
506                         my $due_dt = $parser->parse_datetime( clense_ISO8601( $c->due_date ) );
507         
508                         my $due = $due_dt->epoch;
509                         my $now = time;
510                         my $fine_interval = interval_to_seconds( $c->fine_interval );
511         
512                         if ( interval_to_seconds( $c->fine_interval ) >= interval_to_seconds('1d') ) {  
513                                 my $tz_offset_s = 0;
514                                 if ($due_dt->strftime('%z') =~ /(-|\+)(\d{2}):?(\d{2})/) {
515                                         $tz_offset_s = $1 . interval_to_seconds( "${2}h ${3}m"); 
516                                 }
517         
518                                 $due -= ($due % $fine_interval) + $tz_offset_s;
519                                 $now -= ($now % $fine_interval) + $tz_offset_s;
520                         }
521         
522                         $client->respond(
523                                 "ARG! Overdue circulation ".$c->id.
524                                 " for item ".$c->target_copy.
525                                 " (user ".$c->usr.").\n".
526                                 "\tItem was due on or before: ".localtime($due)."\n");
527         
528                         my @fines = money::billing->search_where(
529                                 { xact => $c->id, billing_type => 'Overdue materials' },
530                                 { order_by => 'billing_ts DESC'}
531                         );
532
533                         my $f_idx = 0;
534                         my $fine = $fines[$f_idx] if (@fines);
535                         if ($overbill) {
536                                 $fine = $fines[++$f_idx] while ($fine and $fine->voided);
537                         }
538
539                         my $current_fine_total = 0;
540                         $current_fine_total += int($_->amount * 100) for (grep { $_ and !$_->voided } @fines);
541         
542                         my $last_fine;
543                         if ($fine) {
544                                 $client->respond( "Last billing time: ".$fine->billing_ts." (clensed fromat: ".clense_ISO8601( $fine->billing_ts ).")");
545                                 $last_fine = $parser->parse_datetime( clense_ISO8601( $fine->billing_ts ) )->epoch;
546                         } else {
547                                 $log->info( "Potential first billing for circ ".$c->id );
548                                 $last_fine = $due;
549
550                                 if (0) {
551                                         if (my $h = $hoo{$c->circ_lib}) { 
552
553                                                 $log->info( "Circ lib has an hours-of-operation entry" );
554                                                 # find the day after the due date...
555                                                 $due_dt = $due_dt->add( days => 1 );
556
557                                                 # get the day of the week for that day...
558                                                 my $dow = $due_dt->day_of_week_0;
559                                                 my $dow_open = "dow_${dow}_open";
560                                                 my $dow_close = "dow_${dow}_close";
561
562                                                 my $count = 0;
563                                                 while ( $h->$dow_open eq '00:00:00' and $h->$dow_close eq '00:00:00' ) {
564                                                         # if the circ lib is closed, add a day to the grace period...
565
566                                                         $grace++;
567                                                         $log->info( "Grace period for circ ".$c->id." extended to $grace intervals" );
568                                                         $log->info( "Day of week $dow open $dow_open, close $dow_close" );
569
570                                                         $due_dt = $due_dt->add( days => 1 );
571                                                         $dow = $due_dt->day_of_week_0;
572                                                         $dow_open = "dow_${dow}_open";
573                                                         $dow_close = "dow_${dow}_close";
574
575                                                         $count++;
576
577                                                         # and check for up to a week
578                                                         last if ($count > 6);
579                                                 }
580                                         }
581                                 }
582                         }
583
584
585                         my $pending_fine_count = int( ($now - $last_fine) / $fine_interval ); 
586                         if ($pending_fine_count < 1 + $grace) {
587                                 $client->respond( "\tNo fines to create.  " );
588                                 if ($grace && $now < $due + $fine_interval * $grace) {
589                                         $client->respond( "Still inside grace period of: ". seconds_to_interval( $fine_interval * $grace)."\n" );
590                                         $log->info( "Circ ".$c->id." is still inside grace period of: $grace [". seconds_to_interval( $fine_interval * $grace).']' );
591                                 } else {
592                                         $client->respond( "Last fine generated for: ".localtime($last_fine)."\n" );
593                                 }
594                                 next;
595                         }
596         
597                         $client->respond( "\t$pending_fine_count pending fine(s)\n" );
598
599                         my $recuring_fine = int($c->recuring_fine * 100);
600                         my $max_fine = int($c->max_fine * 100);
601
602                         my ($latest_billing_ts, $latest_amount) = ('',0);
603                         for (my $bill = 1; $bill <= $pending_fine_count; $bill++) {
604         
605                                 if ($current_fine_total >= $max_fine) {
606                                         $c->update({stop_fines => 'MAXFINES', stop_fines_time => 'now'});
607                                         $client->respond(
608                                                 "\tMaximum fine level of ".$c->max_fine.
609                                                 " reached for this circulation.\n".
610                                                 "\tNo more fines will be generated.\n" );
611                                         last;
612                                 }
613                                 
614                                 my $billing_ts = DateTime->from_epoch( epoch => $last_fine + $fine_interval * $bill );
615
616                                 my $dow = $billing_ts->day_of_week_0();
617                                 my $dow_open = "dow_${dow}_open";
618                                 my $dow_close = "dow_${dow}_close";
619
620                                 if (my $h = $hoo{$c->circ_lib}) {
621                                         next if ( $h->$dow_open eq '00:00:00' and $h->$dow_close eq '00:00:00');
622                                 }
623
624                                 my $timestamptz = $billing_ts->strftime('%FT%T%z');
625                                 my @cl = actor::org_unit::closed_date->search_where(
626                                                 { close_start   => { '<=' => $timestamptz },
627                                                   close_end     => { '>=' => $timestamptz },
628                                                   org_unit      => $c->circ_lib }
629                                 );
630                                 next if (@cl);
631         
632                                 $current_fine_total += $recuring_fine;
633                                 $latest_amount += $recuring_fine;
634                                 $latest_billing_ts = $timestamptz;
635
636                                 money::billing->create(
637                                         { xact          => ''.$c->id,
638                                           note          => "System Generated Overdue Fine",
639                                           billing_type  => "Overdue materials",
640                                           amount        => sprintf('%0.2f', $recuring_fine/100),
641                                           billing_ts    => $timestamptz,
642                                         }
643                                 );
644
645                         }
646
647                         $client->respond( "\t\tAdding fines totaling $latest_amount for overdue up to $latest_billing_ts\n" )
648                                 if ($latest_billing_ts and $latest_amount);
649
650                         $self->method_lookup('open-ils.storage.transaction.commit')->run;
651
652                         $penalty->request(
653                                 'open-ils.penalty.patron_penalty.calculate',
654                                 { patron        => $c->usr->to_fieldmapper,
655                                   update        => 1,
656                                   background    => 1,
657                                 }
658                         )->gather(1);
659
660                 } catch Error with {
661                         my $e = shift;
662                         $client->respond( "Error processing overdue circulation [".$c->id."]:\n\n$e\n" );
663                         $log->error("Error processing overdue circulation [".$c->id."]:\n$e\n");
664                         $self->method_lookup('open-ils.storage.transaction.rollback')->run;
665                         throw $e ifif ($e =~ /IS NOT CONNECTED TO THE NETWORK/o);
666                 };
667         }
668 }
669 __PACKAGE__->register_method(
670         api_name        => 'open-ils.storage.action.circulation.overdue.generate_fines',
671         api_level       => 1,
672         stream          => 1,
673         method          => 'generate_fines',
674 );
675
676
677
678 sub new_hold_copy_targeter {
679         my $self = shift;
680         my $client = shift;
681         my $check_expire = shift;
682         my $one_hold = shift;
683
684         local $OpenILS::Application::Storage::WRITE = 1;
685
686         my $holds;
687
688         try {
689                 if ($one_hold) {
690                         $self->method_lookup('open-ils.storage.transaction.begin')->run( $client );
691                         $holds = [ action::hold_request->search_where( { id => $one_hold, fulfillment_time => undef, cancel_time => undef } ) ];
692                         $self->method_lookup('open-ils.storage.transaction.rollback')->run;
693                 } elsif ( $check_expire ) {
694
695                         # what's the retarget time threashold?
696                         my $time = time;
697                         $check_expire ||= '12h';
698                         $check_expire = interval_to_seconds( $check_expire );
699
700                         my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = gmtime(time() - $check_expire);
701                         $year += 1900;
702                         $mon += 1;
703                         my $expire_threshold = sprintf(
704                                 '%s-%0.2d-%0.2dT%0.2d:%0.2d:%0.2d-00',
705                                 $year, $mon, $mday, $hour, $min, $sec
706                         );
707
708                         # find all the holds holds needing retargeting
709                         $holds = [ action::hold_request->search_where(
710                                                         { capture_time => undef,
711                                                           fulfillment_time => undef,
712                                                           cancel_time => undef,
713                                                           prev_check_time => { '<=' => $expire_threshold },
714                                                         },
715                                                         { order_by => 'selection_depth DESC, request_time,prev_check_time' } ) ];
716
717                         # find all the holds holds needing first time targeting
718                         push @$holds, action::hold_request->search(
719                                                         capture_time => undef,
720                                                         fulfillment_time => undef,
721                                                         prev_check_time => undef,
722                                                         cancel_time => undef,
723                                                         { order_by => 'selection_depth DESC, request_time' } );
724                 } else {
725
726                         # find all the holds holds needing first time targeting ONLY
727                         $holds = [ action::hold_request->search(
728                                                         capture_time => undef,
729                                                         fulfillment_time => undef,
730                                                         prev_check_time => undef,
731                                                         cancel_time => undef,
732                                                         { order_by => 'selection_depth DESC, request_time' } ) ];
733                 }
734         } catch Error with {
735                 my $e = shift;
736                 die "Could not retrieve uncaptured hold requests:\n\n$e\n";
737         };
738
739         my @closed = actor::org_unit::closed_date->search_where(
740                 { close_start => { '<=', 'today' },
741                   close_end => { '>=', 'today' } }
742         );
743
744
745         my @successes;
746
747         for my $hold (@$holds) {
748                 try {
749                         #first, re-fetch the hold, to make sure it's not captured already
750                         $hold = action::hold_request->retrieve( $hold->id );
751                         die "OK\n" if (!$hold or $hold->capture_time);
752
753                         #start a transaction if needed
754                         if ($self->method_lookup('open-ils.storage.transaction.current')->run) {
755                                 $log->debug("Cleaning up after previous transaction\n");
756                                 $self->method_lookup('open-ils.storage.transaction.rollback')->run;
757                         }
758                         $self->method_lookup('open-ils.storage.transaction.begin')->run( $client );
759                         $log->info("Processing hold ".$hold->id."...\n");
760
761                         # remove old auto-targeting maps
762                         my @oldmaps = action::hold_copy_map->search( hold => $hold->id );
763                         $_->delete for (@oldmaps);
764
765         
766                         my $all_copies = [];
767
768                         # find filters for MR holds
769                         my ($types, $formats, $lang) = split '-', $hold->holdable_formats;
770
771                         # find all the potential copies
772                         if ($hold->hold_type eq 'M') {
773                                 for my $r ( map
774                                                 {$_->record}
775                                                 metabib::record_descriptor
776                                                         ->search(
777                                                                 record => [ map { $_->id } metabib::metarecord->retrieve($hold->target)->source_records ],
778                                                                 ( $types   ? (item_type => [split '', $types])   : () ),
779                                                                 ( $formats ? (item_form => [split '', $formats]) : () ),
780                                                                 ( $lang    ? (item_lang => $lang)                : () ),
781                                                         )
782                                 ) {
783                                         my ($rtree) = $self
784                                                 ->method_lookup( 'open-ils.storage.biblio.record_entry.ranged_tree')
785                                                 ->run( $r->id, $hold->selection_ou, $hold->selection_depth );
786
787                                         for my $cn ( @{ $rtree->call_numbers } ) {
788                                                 push @$all_copies,
789                                                         asset::copy->search( id => [map {$_->id} @{ $cn->copies }] );
790                                         }
791                                 }
792                         } elsif ($hold->hold_type eq 'T') {
793                                 my ($rtree) = $self
794                                         ->method_lookup( 'open-ils.storage.biblio.record_entry.ranged_tree')
795                                         ->run( $hold->target, $hold->selection_ou, $hold->selection_depth );
796
797                                 unless ($rtree) {
798                                         push @successes, { hold => $hold->id, eligible_copies => 0, error => 'NO_RECORD' };
799                                         die "OK\n";
800                                 }
801
802                                 for my $cn ( @{ $rtree->call_numbers } ) {
803                                         push @$all_copies,
804                                                 asset::copy->search( id => [map {$_->id} @{ $cn->copies }] );
805                                 }
806                         } elsif ($hold->hold_type eq 'V') {
807                                 my ($vtree) = $self
808                                         ->method_lookup( 'open-ils.storage.asset.call_number.ranged_tree')
809                                         ->run( $hold->target, $hold->selection_ou, $hold->selection_depth );
810
811                                 push @$all_copies,
812                                         asset::copy->search( id => [map {$_->id} @{ $vtree->copies }] );
813                                         
814                         } elsif  ($hold->hold_type eq 'C') {
815
816                                 $all_copies = [asset::copy->retrieve($hold->target)];
817                         }
818
819                         # trim unholdables
820                         @$all_copies = grep {   isTrue($_->status->holdable) && 
821                                                 isTrue($_->location->holdable) && 
822                                                 isTrue($_->holdable) &&
823                                                 !isTrue($_->deleted)
824                                         } @$all_copies;
825
826                         # let 'em know we're still working
827                         $client->status( new OpenSRF::DomainObject::oilsContinueStatus );
828                         
829                         # if we have no copies ...
830                         if (!ref $all_copies || !@$all_copies) {
831                                 $log->info("\tNo copies available for targeting at all!\n");
832                                 push @successes, { hold => $hold->id, eligible_copies => 0, error => 'NO_COPIES' };
833
834                                 $hold->update( { prev_check_time => 'today' } );
835                                 $self->method_lookup('open-ils.storage.transaction.commit')->run;
836                                 die "OK\n";
837                         }
838
839                         my $copy_count = @$all_copies;
840
841                         # map the potentials, so that we can pick up checkins
842                         $log->debug( "\tMapping ".scalar(@$all_copies)." potential copies for hold ".$hold->id);
843                         action::hold_copy_map->create( { hold => $hold->id, target_copy => $_->id } ) for (@$all_copies);
844
845                         $client->status( new OpenSRF::DomainObject::oilsContinueStatus );
846
847                         my @good_copies;
848                         for my $c (@$all_copies) {
849                                 # current target
850                                 next if ($c->id == $hold->current_copy);
851
852                                 # circ lib is closed
853                                 next if ( grep { ''.$_->org_unit == ''.$c->circ_lib } @closed );
854
855                                 # target of another hold
856                                 next if (action::hold_request
857                                                 ->search_where(
858                                                         { current_copy => $c->id,
859                                                           fulfillment_time => undef,
860                                                           cancel_time => undef,
861                                                         }
862                                                 )
863                                 );
864
865                                 # we passed all three, keep it
866                                 push @good_copies, $c if ($c);
867                                 $client->status( new OpenSRF::DomainObject::oilsContinueStatus );
868                         }
869
870                         $log->debug("\t".scalar(@good_copies)." (non-current) copies available for targeting...");
871
872                         my $old_best = $hold->current_copy;
873                         $hold->update({ current_copy => undef }) if ($old_best);
874         
875                         if (!scalar(@good_copies)) {
876                                 $log->info("\tNo (non-current) copies eligible to fill the hold.");
877                                 if (
878                                   $old_best &&
879                                   grep { $old_best eq $_ } @$all_copies &&
880                                   !action::hold_request->search_where({ current_copy => $old_best->id, capture_time => undef, cancel_time => undef })
881                                 ) {
882                                         # the old copy is still available
883                                         $log->debug("\tPushing current_copy back onto the targeting list");
884                                         push @good_copies, $old_best;
885                                 } else {
886                                         # oops, old copy is not available
887                                         $log->debug("\tcurrent_copy is no longer available for targeting... NEXT HOLD, PLEASE!");
888                                         $hold->update( { prev_check_time => 'today' } );
889                                         $self->method_lookup('open-ils.storage.transaction.commit')->run;
890                                         push @successes, { hold => $hold->id, eligible_copies => 0, error => 'NO_TARGETS' };
891                                         die "OK\n";
892                                 }
893                         }
894
895                         $client->status( new OpenSRF::DomainObject::oilsContinueStatus );
896                         my $prox_list = [];
897                         $$prox_list[0] =
898                         [
899                                 grep {
900                                         $_->circ_lib == $hold->pickup_lib
901                                 } @good_copies
902                         ];
903
904                         $all_copies = [grep {$_->circ_lib != $hold->pickup_lib } @good_copies];
905
906                         $client->status( new OpenSRF::DomainObject::oilsContinueStatus );
907                         my $best = choose_nearest_copy($hold, $prox_list);
908                         $client->status( new OpenSRF::DomainObject::oilsContinueStatus );
909
910                         if (!$best) {
911                                 $log->debug("\tNothing at the pickup lib, looking elsewhere among ".scalar(@$all_copies)." copies");
912                                 $prox_list = create_prox_list( $self, $hold->pickup_lib, $all_copies );
913
914                                 $client->status( new OpenSRF::DomainObject::oilsContinueStatus );
915
916                                 $best = choose_nearest_copy($hold, $prox_list);
917                         }
918
919                         $client->status( new OpenSRF::DomainObject::oilsContinueStatus );
920                         if ($old_best) {
921                                 # hold wasn't fulfilled, record the fact
922                         
923                                 $log->info("\tHold was not (but should have been) fulfilled by ".$old_best->id);
924                                 action::unfulfilled_hold_list->create(
925                                                 { hold => ''.$hold->id,
926                                                   current_copy => ''.$old_best->id,
927                                                   circ_lib => ''.$old_best->circ_lib,
928                                                 });
929                         }
930
931                         if ($best) {
932                                 $hold->update( { current_copy => ''.$best->id, prev_check_time => 'now' } );
933                                 $log->debug("\tUpdating hold [".$hold->id."] with new 'current_copy' [".$best->id."] for hold fulfillment.");
934                         } else {
935                                 $hold->update( { prev_check_time => 'now' } );
936                                 $log->info( "\tThere were no targetable copies for the hold" );
937                         }
938
939                         $self->method_lookup('open-ils.storage.transaction.commit')->run;
940                         $log->info("\tProcessing of hold ".$hold->id." complete.");
941
942                         push @successes,
943                                 { hold => $hold->id,
944                                   old_target => ($old_best ? $old_best->id : undef),
945                                   eligible_copies => $copy_count,
946                                   target => ($best ? $best->id : undef) };
947
948                 } otherwise {
949                         my $e = shift;
950                         if ($e !~ /^OK/o) {
951                                 $log->error("Processing of hold failed:  $e");
952                                 $self->method_lookup('open-ils.storage.transaction.rollback')->run;
953                                 throw $e if ($e =~ /IS NOT CONNECTED TO THE NETWORK/o);
954                         }
955                 };
956         }
957
958         return \@successes;
959 }
960 __PACKAGE__->register_method(
961         api_name        => 'open-ils.storage.action.hold_request.copy_targeter',
962         api_level       => 1,
963         method          => 'new_hold_copy_targeter',
964 );
965
966 my $locations;
967 my $statuses;
968 my %cache = (titles => {}, cns => {});
969 sub hold_copy_targeter {
970         my $self = shift;
971         my $client = shift;
972         my $check_expire = shift;
973         my $one_hold = shift;
974
975         $self->{user_filter} = OpenSRF::AppSession->create('open-ils.circ');
976         $self->{user_filter}->connect;
977         $self->{client} = $client;
978
979         my $time = time;
980         $check_expire ||= '12h';
981         $check_expire = interval_to_seconds( $check_expire );
982
983         my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = gmtime(time() - $check_expire);
984         $year += 1900;
985         $mon += 1;
986         my $expire_threshold = sprintf(
987                 '%s-%0.2d-%0.2dT%0.2d:%0.2d:%0.2d-00',
988                 $year, $mon, $mday, $hour, $min, $sec
989         );
990
991
992         $statuses ||= [ config::copy_status->search(holdable => 't') ];
993
994         $locations ||= [ asset::copy_location->search(holdable => 't') ];
995
996         my $holds;
997
998         %cache = (titles => {}, cns => {});
999
1000         try {
1001                 if ($one_hold) {
1002                         $holds = [ action::hold_request->search(id => $one_hold) ];
1003                 } else {
1004                         $holds = [ action::hold_request->search_where(
1005                                                         { capture_time => undef,
1006                                                           prev_check_time => { '<=' => $expire_threshold },
1007                                                         },
1008                                                         { order_by => 'request_time,prev_check_time' } ) ];
1009                         push @$holds, action::hold_request->search_where(
1010                                                         { capture_time => undef,
1011                                                           prev_check_time => undef,
1012                                                         },
1013                                                         { order_by => 'request_time' } );
1014                 }
1015         } catch Error with {
1016                 my $e = shift;
1017                 die "Could not retrieve uncaptured hold requests:\n\n$e\n";
1018         };
1019
1020         for my $hold (@$holds) {
1021                 try {
1022                         #action::hold_request->db_Main->begin_work;
1023                         if ($self->method_lookup('open-ils.storage.transaction.current')->run) {
1024                                 $client->respond("Cleaning up after previous transaction\n");
1025                                 $self->method_lookup('open-ils.storage.transaction.rollback')->run;
1026                         }
1027                         $self->method_lookup('open-ils.storage.transaction.begin')->run( $client );
1028                         $client->respond("Processing hold ".$hold->id."...\n");
1029
1030                         my $copies;
1031
1032                         $copies = $self->metarecord_hold_capture($hold) if ($hold->hold_type eq 'M');
1033                         $self->{client}->status( new OpenSRF::DomainObject::oilsContinueStatus );
1034
1035                         $copies = $self->title_hold_capture($hold) if ($hold->hold_type eq 'T');
1036                         $self->{client}->status( new OpenSRF::DomainObject::oilsContinueStatus );
1037                         
1038                         $copies = $self->volume_hold_capture($hold) if ($hold->hold_type eq 'V');
1039                         $self->{client}->status( new OpenSRF::DomainObject::oilsContinueStatus );
1040                         
1041                         $copies = $self->copy_hold_capture($hold) if ($hold->hold_type eq 'C');
1042
1043                         unless (ref $copies || !@$copies) {
1044                                 $client->respond("\tNo copies available for targeting at all!\n");
1045                         }
1046
1047                         my @good_copies;
1048                         for my $c (@$copies) {
1049                                 next if ( grep {$c->id == $hold->current_copy} @good_copies);
1050                                 push @good_copies, $c if ($c);
1051                         }
1052
1053                         $client->respond("\t".scalar(@good_copies)." (non-current) copies available for targeting...\n");
1054
1055                         my $old_best = $hold->current_copy;
1056                         $hold->update({ current_copy => undef });
1057         
1058                         if (!scalar(@good_copies)) {
1059                                 $client->respond("\tNo (non-current) copies available to fill the hold.\n");
1060                                 if ( $old_best && grep {$c->id == $hold->current_copy} @$copies ) {
1061                                         $client->respond("\tPushing current_copy back onto the targeting list\n");
1062                                         push @good_copies, asset::copy->retrieve( $old_best );
1063                                 } else {
1064                                         $client->respond("\tcurrent_copy is no longer available for targeting... NEXT HOLD, PLEASE!\n");
1065                                         next;
1066                                 }
1067                         }
1068
1069                         my $prox_list;
1070                         $$prox_list[0] = [grep {$_->circ_lib == $hold->pickup_lib } @good_copies];
1071                         $copies = [grep {$_->circ_lib != $hold->pickup_lib } @good_copies];
1072
1073                         my $best = choose_nearest_copy($hold, $prox_list);
1074
1075                         if (!$best) {
1076                                 $prox_list = create_prox_list( $self, $hold->pickup_lib, $copies );
1077                                 $best = choose_nearest_copy($hold, $prox_list);
1078                         }
1079
1080                         if ($old_best) {
1081                                 # hold wasn't fulfilled, record the fact
1082                         
1083                                 $client->respond("\tHold was not (but should have been) fulfilled by ".$old_best->id.".\n");
1084                                 action::unfulfilled_hold_list->create(
1085                                                 { hold => ''.$hold->id,
1086                                                   current_copy => ''.$old_best->id,
1087                                                   circ_lib => ''.$old_best->circ_lib,
1088                                                 });
1089                         }
1090
1091                         if ($best) {
1092                                 $hold->update( { current_copy => ''.$best->id } );
1093                                 $client->respond("\tTargeting copy ".$best->id." for hold fulfillment.\n");
1094                         }
1095
1096                         $hold->update( { prev_check_time => 'now' } );
1097                         $client->respond("\tUpdating hold ".$hold->id." with new 'current_copy' for hold fulfillment.\n");
1098
1099                         $client->respond("\tProcessing of hold ".$hold->id." complete.\n");
1100                         $self->method_lookup('open-ils.storage.transaction.commit')->run;
1101
1102                         #action::hold_request->dbi_commit;
1103
1104                 } otherwise {
1105                         my $e = shift;
1106                         $log->error("Processing of hold failed:  $e");
1107                         $client->respond("\tProcessing of hold failed!.\n\t\t$e\n");
1108                         $self->method_lookup('open-ils.storage.transaction.rollback')->run;
1109                         #action::hold_request->dbi_rollback;
1110                 };
1111         }
1112
1113         $self->{user_filter}->disconnect;
1114         $self->{user_filter}->finish;
1115         delete $$self{user_filter};
1116         return undef;
1117 }
1118 __PACKAGE__->register_method(
1119         api_name        => 'open-ils.storage.action.hold_request.copy_targeter',
1120         api_level       => 0,
1121         stream          => 1,
1122         method          => 'hold_copy_targeter',
1123 );
1124
1125
1126 sub copy_hold_capture {
1127         my $self = shift;
1128         my $hold = shift;
1129         my $cps = shift;
1130
1131         if (!defined($cps)) {
1132                 try {
1133                         $cps = [ asset::copy->search( id => $hold->target ) ];
1134                 } catch Error with {
1135                         my $e = shift;
1136                         die "Could not retrieve initial volume list:\n\n$e\n";
1137                 };
1138         }
1139
1140         my @copies = grep { $_->holdable } @$cps;
1141
1142         for (my $i = 0; $i < @$cps; $i++) {
1143                 next unless $$cps[$i];
1144                 
1145                 my $cn = $cache{cns}{$copies[$i]->call_number};
1146                 my $rec = $cache{titles}{$cn->record};
1147                 $copies[$i] = undef if ($copies[$i] && !grep{ $copies[$i]->status eq $_->id}@$statuses);
1148                 $copies[$i] = undef if ($copies[$i] && !grep{ $copies[$i]->location eq $_->id}@$locations);
1149                 $copies[$i] = undef if (
1150                         !$copies[$i] ||
1151                         !$self->{user_filter}->request(
1152                                 'open-ils.circ.permit_hold',
1153                                 $hold->to_fieldmapper, do {
1154                                         my $cp_fm = $copies[$i]->to_fieldmapper;
1155                                         $cp_fm->circ_lib( $copies[$i]->circ_lib->to_fieldmapper );
1156                                         $cp_fm->location( $copies[$i]->location->to_fieldmapper );
1157                                         $cp_fm->status( $copies[$i]->status->to_fieldmapper );
1158                                         $cp_fm;
1159                                 },
1160                                 { title => $rec->to_fieldmapper,
1161                                   usr => actor::user->retrieve($hold->usr)->to_fieldmapper,
1162                                   requestor => actor::user->retrieve($hold->requestor)->to_fieldmapper,
1163                                 })->gather(1)
1164                 );
1165                 $self->{client}->status( new OpenSRF::DomainObject::oilsContinueStatus );
1166         }
1167
1168         @copies = grep { $_ } @copies;
1169
1170         my $count = @copies;
1171
1172         return unless ($count);
1173         
1174         action::hold_copy_map->search( hold => $hold->id )->delete_all;
1175         
1176         my @maps;
1177         $self->{client}->respond( "\tMapping ".scalar(@copies)." eligable copies for hold ".$hold->id."\n");
1178         for my $c (@copies) {
1179                 push @maps, action::hold_copy_map->create( { hold => $hold->id, target_copy => $c->id } );
1180         }
1181         $self->{client}->respond( "\tA total of ".scalar(@maps)." mapping were created for hold ".$hold->id."\n");
1182
1183         return \@copies;
1184 }
1185
1186
1187 sub choose_nearest_copy {
1188         my $hold = shift;
1189         my $prox_list = shift;
1190
1191         for my $p ( 0 .. int( scalar(@$prox_list) - 1) ) {
1192                 next unless (ref $$prox_list[$p]);
1193
1194                 my @capturable = grep { $_->status == 0 || $_->status == 7 } @{ $$prox_list[$p] };
1195                 next unless (@capturable);
1196
1197                 my $rand = int(rand(scalar(@capturable)));
1198                 while (my ($c) = splice(@capturable,$rand)) {
1199                         unless ( OpenILS::Utils::PermitHold::permit_copy_hold(
1200                                 { title => $c->call_number->record->to_fieldmapper,
1201                                   title_descriptor => $c->call_number->record->record_descriptor->next->to_fieldmapper,
1202                                   patron => $hold->usr->to_fieldmapper,
1203                                   copy => $c->to_fieldmapper,
1204                                   requestor => $hold->requestor->to_fieldmapper,
1205                                   request_lib => $hold->request_lib->to_fieldmapper,
1206                                 }
1207                         )) {
1208                                 last unless(@capturable);
1209                                 $rand = int(rand(scalar(@capturable)));
1210                                 next;
1211                         }
1212                         return $c;
1213                 }
1214         }
1215 }
1216
1217 sub create_prox_list {
1218         my $self = shift;
1219         my $lib = shift;
1220         my $copies = shift;
1221
1222         my @prox_list;
1223         for my $cp (@$copies) {
1224                 my ($prox) = $self->method_lookup('open-ils.storage.asset.copy.proximity')->run( $cp, $lib );
1225                 next unless (defined($prox));
1226                 $prox_list[$prox] = [] unless defined($prox_list[$prox]);
1227                 push @{$prox_list[$prox]}, $cp;
1228         }
1229         return \@prox_list;
1230 }
1231
1232 sub volume_hold_capture {
1233         my $self = shift;
1234         my $hold = shift;
1235         my $vols = shift;
1236
1237         if (!defined($vols)) {
1238                 try {
1239                         $vols = [ asset::call_number->search( id => $hold->target ) ];
1240                         $cache{cns}{$_->id} = $_ for (@$vols);
1241                 } catch Error with {
1242                         my $e = shift;
1243                         die "Could not retrieve initial volume list:\n\n$e\n";
1244                 };
1245         }
1246
1247         my @v_ids = map { $_->id } @$vols;
1248
1249         my $cp_list;
1250         try {
1251                 $cp_list = [ asset::copy->search( call_number => \@v_ids ) ];
1252         
1253         } catch Error with {
1254                 my $e = shift;
1255                 warn "Could not retrieve copy list:\n\n$e\n";
1256         };
1257
1258         $self->copy_hold_capture($hold,$cp_list) if (ref $cp_list and @$cp_list);
1259 }
1260
1261 sub title_hold_capture {
1262         my $self = shift;
1263         my $hold = shift;
1264         my $titles = shift;
1265
1266         if (!defined($titles)) {
1267                 try {
1268                         $titles = [ biblio::record_entry->search( id => $hold->target ) ];
1269                         $cache{titles}{$_->id} = $_ for (@$titles);
1270                 } catch Error with {
1271                         my $e = shift;
1272                         die "Could not retrieve initial title list:\n\n$e\n";
1273                 };
1274         }
1275
1276         my @t_ids = map { $_->id } @$titles;
1277         my $cn_list;
1278         try {
1279                 ($cn_list) = $self->method_lookup('open-ils.storage.direct.asset.call_number.search.record.atomic')->run( \@t_ids );
1280         
1281         } catch Error with {
1282                 my $e = shift;
1283                 warn "Could not retrieve volume list:\n\n$e\n";
1284         };
1285
1286         $cache{cns}{$_->id} = $_ for (@$cn_list);
1287
1288         $self->volume_hold_capture($hold,$cn_list) if (ref $cn_list and @$cn_list);
1289 }
1290
1291 sub metarecord_hold_capture {
1292         my $self = shift;
1293         my $hold = shift;
1294
1295         my $titles;
1296         try {
1297                 $titles = [ metabib::metarecord_source_map->search( metarecord => $hold->target) ];
1298         
1299         } catch Error with {
1300                 my $e = shift;
1301                 die "Could not retrieve initial title list:\n\n$e\n";
1302         };
1303
1304         try {
1305                 my @recs = map {$_->record} metabib::record_descriptor->search( record => $titles, item_type => [split '', $hold->holdable_formats] ); 
1306
1307                 $titles = [ biblio::record_entry->search( id => \@recs ) ];
1308         
1309         } catch Error with {
1310                 my $e = shift;
1311                 die "Could not retrieve format-pruned title list:\n\n$e\n";
1312         };
1313
1314
1315         $cache{titles}{$_->id} = $_ for (@$titles);
1316         $self->title_hold_capture($hold,$titles) if (ref $titles and @$titles);
1317 }
1318
1319 1;