Bug 5770: (QA follow-up) Allow feature to be disable
[koha.git] / C4 / Suggestions.pm
1 package C4::Suggestions;
2
3 # Copyright 2000-2002 Katipo Communications
4 # Parts Copyright Biblibre 2011
5 #
6 # This file is part of Koha.
7 #
8 # Koha is free software; you can redistribute it and/or modify it
9 # under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 3 of the License, or
11 # (at your option) any later version.
12 #
13 # Koha is distributed in the hope that it will be useful, but
14 # WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
17 #
18 # You should have received a copy of the GNU General Public License
19 # along with Koha; if not, see <http://www.gnu.org/licenses>.
20
21 use strict;
22
23 #use warnings; FIXME - Bug 2505
24 use CGI qw ( -utf8 );
25
26 use C4::Context;
27 use C4::Output;
28 use C4::Debug;
29 use C4::Letters;
30 use Koha::DateUtils;
31
32 use List::MoreUtils qw(any);
33 use base qw(Exporter);
34
35 our @EXPORT  = qw(
36   ConnectSuggestionAndBiblio
37   CountSuggestion
38   DelSuggestion
39   GetSuggestion
40   GetSuggestionByStatus
41   GetSuggestionFromBiblionumber
42   GetSuggestionInfoFromBiblionumber
43   GetSuggestionInfo
44   ModStatus
45   ModSuggestion
46   NewSuggestion
47   SearchSuggestion
48   DelSuggestionsOlderThan
49   GetUnprocessedSuggestions
50 );
51
52 =head1 NAME
53
54 C4::Suggestions - Some useful functions for dealings with aqorders.
55
56 =head1 SYNOPSIS
57
58 use C4::Suggestions;
59
60 =head1 DESCRIPTION
61
62 The functions in this module deal with the aqorders in OPAC and in librarian interface
63
64 A suggestion is done in the OPAC. It has the status "ASKED"
65
66 When a librarian manages the suggestion, they can set the status to "REJECTED" or "ACCEPTED".
67
68 When the book is ordered, the suggestion status becomes "ORDERED"
69
70 When a book is ordered and arrived in the library, the status becomes "AVAILABLE"
71
72 All aqorders of a borrower can be seen by the borrower itself.
73 Suggestions done by other borrowers can be seen when not "AVAILABLE"
74
75 =head1 FUNCTIONS
76
77 =head2 SearchSuggestion
78
79 (\@array) = &SearchSuggestion($suggestionhashref_to_search)
80
81 searches for a suggestion
82
83 return :
84 C<\@array> : the aqorders found. Array of hash.
85 Note the status is stored twice :
86 * in the status field
87 * as parameter ( for example ASKED => 1, or REJECTED => 1) . This is for template & translation purposes.
88
89 =cut
90
91 sub SearchSuggestion {
92     my ($suggestion) = @_;
93     my $dbh = C4::Context->dbh;
94     my @sql_params;
95     my @query = (
96         q{
97         SELECT suggestions.*,
98             U1.branchcode       AS branchcodesuggestedby,
99             B1.branchname       AS branchnamesuggestedby,
100             U1.surname          AS surnamesuggestedby,
101             U1.firstname        AS firstnamesuggestedby,
102             U1.cardnumber       AS cardnumbersuggestedby,
103             U1.email            AS emailsuggestedby,
104             U1.borrowernumber   AS borrnumsuggestedby,
105             U1.categorycode     AS categorycodesuggestedby,
106             C1.description      AS categorydescriptionsuggestedby,
107             U2.surname          AS surnamemanagedby,
108             U2.firstname        AS firstnamemanagedby,
109             B2.branchname       AS branchnamesuggestedby,
110             U2.email            AS emailmanagedby,
111             U2.branchcode       AS branchcodemanagedby,
112             U2.borrowernumber   AS borrnummanagedby
113         FROM suggestions
114             LEFT JOIN borrowers     AS U1 ON suggestedby=U1.borrowernumber
115             LEFT JOIN branches      AS B1 ON B1.branchcode=U1.branchcode
116             LEFT JOIN categories    AS C1 ON C1.categorycode=U1.categorycode
117             LEFT JOIN borrowers     AS U2 ON managedby=U2.borrowernumber
118             LEFT JOIN branches      AS B2 ON B2.branchcode=U2.branchcode
119             LEFT JOIN categories    AS C2 ON C2.categorycode=U2.categorycode
120         WHERE 1=1
121     }
122     );
123
124     # filter on biblio informations
125     foreach my $field (
126         qw( title author isbn publishercode copyrightdate collectiontitle ))
127     {
128         if ( $suggestion->{$field} ) {
129             push @sql_params, '%' . $suggestion->{$field} . '%';
130             push @query,      qq{ AND suggestions.$field LIKE ? };
131         }
132     }
133
134     # filter on user branch
135     if ( C4::Context->preference('IndependentBranches') ) {
136         my $userenv = C4::Context->userenv;
137         if ($userenv) {
138             if ( !C4::Context->IsSuperLibrarian() && !$suggestion->{branchcode} )
139             {
140                 push @sql_params, $$userenv{branch};
141                 push @query,      q{
142                     AND (suggestions.branchcode=? OR suggestions.branchcode='')
143                 };
144             }
145         }
146     } else {
147         if ( defined $suggestion->{branchcode} && $suggestion->{branchcode} ) {
148             unless ( $suggestion->{branchcode} eq '__ANY__' ) {
149                 push @sql_params, $suggestion->{branchcode};
150                 push @query,      qq{ AND suggestions.branchcode=? };
151             }
152         }
153     }
154
155     # filter on nillable fields
156     foreach my $field (
157         qw( STATUS itemtype suggestedby managedby acceptedby budgetid biblionumber )
158       )
159     {
160         if ( exists $suggestion->{$field}
161                 and defined $suggestion->{$field}
162                 and $suggestion->{$field} ne '__ANY__'
163                 and (
164                     $suggestion->{$field} ne q||
165                         or $field eq 'STATUS'
166                 )
167         ) {
168             if ( $suggestion->{$field} eq '__NONE__' ) {
169                 push @query, qq{ AND (suggestions.$field = '' OR suggestions.$field IS NULL) };
170             }
171             else {
172                 push @sql_params, $suggestion->{$field};
173                 push @query, qq{ AND suggestions.$field = ? };
174             }
175         }
176     }
177
178     # filter on date fields
179     foreach my $field (qw( suggesteddate manageddate accepteddate )) {
180         my $from = $field . "_from";
181         my $to   = $field . "_to";
182         my $from_dt;
183         $from_dt = eval { dt_from_string( $suggestion->{$from} ) } if ( $suggestion->{$from} );
184         my $from_sql = '0000-00-00';
185         $from_sql = output_pref({ dt => $from_dt, dateformat => 'iso', dateonly => 1 })
186             if ($from_dt);
187         $debug && warn "SQL for start date ($field): $from_sql";
188         if ( $suggestion->{$from} || $suggestion->{$to} ) {
189             push @query, qq{ AND suggestions.$field BETWEEN ? AND ? };
190             push @sql_params, $from_sql;
191             push @sql_params,
192               output_pref({ dt => dt_from_string( $suggestion->{$to} ), dateformat => 'iso', dateonly => 1 }) || output_pref({ dt => dt_from_string, dateformat => 'iso', dateonly => 1 });
193         }
194     }
195
196     $debug && warn "@query";
197     my $sth = $dbh->prepare("@query");
198     $sth->execute(@sql_params);
199     my @results;
200
201     # add status as field
202     while ( my $data = $sth->fetchrow_hashref ) {
203         $data->{ $data->{STATUS} } = 1;
204         push( @results, $data );
205     }
206
207     return ( \@results );
208 }
209
210 =head2 GetSuggestion
211
212 \%sth = &GetSuggestion($suggestionid)
213
214 this function get the detail of the suggestion $suggestionid (input arg)
215
216 return :
217     the result of the SQL query as a hash : $sth->fetchrow_hashref.
218
219 =cut
220
221 sub GetSuggestion {
222     my ($suggestionid) = @_;
223     my $dbh           = C4::Context->dbh;
224     my $query         = q{
225         SELECT *
226         FROM   suggestions
227         WHERE  suggestionid=?
228     };
229     my $sth = $dbh->prepare($query);
230     $sth->execute($suggestionid);
231     return ( $sth->fetchrow_hashref );
232 }
233
234 =head2 GetSuggestionFromBiblionumber
235
236 $ordernumber = &GetSuggestionFromBiblionumber($biblionumber)
237
238 Get a suggestion from it's biblionumber.
239
240 return :
241 the id of the suggestion which is related to the biblionumber given on input args.
242
243 =cut
244
245 sub GetSuggestionFromBiblionumber {
246     my ($biblionumber) = @_;
247     my $query = q{
248         SELECT suggestionid
249         FROM   suggestions
250         WHERE  biblionumber=? LIMIT 1
251     };
252     my $dbh = C4::Context->dbh;
253     my $sth = $dbh->prepare($query);
254     $sth->execute($biblionumber);
255     my ($suggestionid) = $sth->fetchrow;
256     return $suggestionid;
257 }
258
259 =head2 GetSuggestionInfoFromBiblionumber
260
261 Get a suggestion and borrower's informations from it's biblionumber.
262
263 return :
264 all informations (suggestion and borrower) of the suggestion which is related to the biblionumber given.
265
266 =cut
267
268 sub GetSuggestionInfoFromBiblionumber {
269     my ($biblionumber) = @_;
270     my $query = q{
271         SELECT suggestions.*,
272             U1.surname          AS surnamesuggestedby,
273             U1.firstname        AS firstnamesuggestedby,
274             U1.borrowernumber   AS borrnumsuggestedby
275         FROM suggestions
276             LEFT JOIN borrowers AS U1 ON suggestedby=U1.borrowernumber
277         WHERE biblionumber=?
278         LIMIT 1
279     };
280     my $dbh = C4::Context->dbh;
281     my $sth = $dbh->prepare($query);
282     $sth->execute($biblionumber);
283     return $sth->fetchrow_hashref;
284 }
285
286 =head2 GetSuggestionInfo
287
288 Get a suggestion and borrower's informations from it's suggestionid
289
290 return :
291 all informations (suggestion and borrower) of the suggestion which is related to the suggestionid given.
292
293 =cut
294
295 sub GetSuggestionInfo {
296     my ($suggestionid) = @_;
297     my $query = q{
298         SELECT suggestions.*,
299             U1.surname          AS surnamesuggestedby,
300             U1.firstname        AS firstnamesuggestedby,
301             U1.borrowernumber   AS borrnumsuggestedby
302         FROM suggestions
303             LEFT JOIN borrowers AS U1 ON suggestedby=U1.borrowernumber
304         WHERE suggestionid=?
305         LIMIT 1
306     };
307     my $dbh = C4::Context->dbh;
308     my $sth = $dbh->prepare($query);
309     $sth->execute($suggestionid);
310     return $sth->fetchrow_hashref;
311 }
312
313 =head2 GetSuggestionByStatus
314
315 $aqorders = &GetSuggestionByStatus($status,[$branchcode])
316
317 Get a suggestion from it's status
318
319 return :
320 all the suggestion with C<$status>
321
322 =cut
323
324 sub GetSuggestionByStatus {
325     my $status     = shift;
326     my $branchcode = shift;
327     my $dbh        = C4::Context->dbh;
328     my @sql_params = ($status);
329     my $query      = q{
330         SELECT suggestions.*,
331             U1.surname          AS surnamesuggestedby,
332             U1.firstname        AS firstnamesuggestedby,
333             U1.branchcode       AS branchcodesuggestedby,
334             B1.branchname       AS branchnamesuggestedby,
335             U1.borrowernumber   AS borrnumsuggestedby,
336             U1.categorycode     AS categorycodesuggestedby,
337             C1.description      AS categorydescriptionsuggestedby,
338             U2.surname          AS surnamemanagedby,
339             U2.firstname        AS firstnamemanagedby,
340             U2.borrowernumber   AS borrnummanagedby
341         FROM suggestions
342             LEFT JOIN borrowers     AS U1 ON suggestedby=U1.borrowernumber
343             LEFT JOIN borrowers     AS U2 ON managedby=U2.borrowernumber
344             LEFT JOIN categories    AS C1 ON C1.categorycode=U1.categorycode
345             LEFT JOIN branches      AS B1 on B1.branchcode=U1.branchcode
346         WHERE status = ?
347     };
348
349     # filter on branch
350     if ( C4::Context->preference("IndependentBranches") || $branchcode ) {
351         my $userenv = C4::Context->userenv;
352         if ($userenv) {
353             unless ( C4::Context->IsSuperLibrarian() ) {
354                 push @sql_params, $userenv->{branch};
355                 $query .= q{ AND (U1.branchcode = ? OR U1.branchcode ='') };
356             }
357         }
358         if ($branchcode) {
359             push @sql_params, $branchcode;
360             $query .= q{ AND (U1.branchcode = ? OR U1.branchcode ='') };
361         }
362     }
363
364     my $sth = $dbh->prepare($query);
365     $sth->execute(@sql_params);
366     my $results;
367     $results = $sth->fetchall_arrayref( {} );
368     return $results;
369 }
370
371 =head2 CountSuggestion
372
373 &CountSuggestion($status)
374
375 Count the number of aqorders with the status given on input argument.
376 the arg status can be :
377
378 =over 2
379
380 =item * ASKED : asked by the user, not dealed by the librarian
381
382 =item * ACCEPTED : accepted by the librarian, but not yet ordered
383
384 =item * REJECTED : rejected by the librarian (definitive status)
385
386 =item * ORDERED : ordered by the librarian (acquisition module)
387
388 =back
389
390 return :
391 the number of suggestion with this status.
392
393 =cut
394
395 sub CountSuggestion {
396     my ($status) = @_;
397     my $dbh = C4::Context->dbh;
398     my $sth;
399     my $userenv = C4::Context->userenv;
400     if ( C4::Context->preference("IndependentBranches")
401         && !C4::Context->IsSuperLibrarian() )
402     {
403         my $query = q{
404             SELECT count(*)
405             FROM suggestions
406                 LEFT JOIN borrowers ON borrowers.borrowernumber=suggestions.suggestedby
407             WHERE STATUS=?
408                 AND (borrowers.branchcode='' OR borrowers.branchcode=?)
409         };
410         $sth = $dbh->prepare($query);
411         $sth->execute( $status, $userenv->{branch} );
412     }
413     else {
414         my $query = q{
415             SELECT count(*)
416             FROM suggestions
417             WHERE STATUS=?
418         };
419         $sth = $dbh->prepare($query);
420         $sth->execute($status);
421     }
422     my ($result) = $sth->fetchrow;
423     return $result;
424 }
425
426 =head2 NewSuggestion
427
428
429 &NewSuggestion($suggestion);
430
431 Insert a new suggestion on database with value given on input arg.
432
433 =cut
434
435 sub NewSuggestion {
436     my ($suggestion) = @_;
437
438     for my $field ( qw(
439         suggestedby
440         managedby
441         manageddate
442         acceptedby
443         accepteddate
444         rejectedby
445         rejecteddate
446         budgetid
447     ) ) {
448         # Set the fields to NULL if not given.
449         $suggestion->{$field} ||= undef;
450     }
451
452     $suggestion->{STATUS} = "ASKED" unless $suggestion->{STATUS};
453
454     $suggestion->{suggesteddate} = dt_from_string unless $suggestion->{suggesteddate};
455
456     my $rs = Koha::Database->new->schema->resultset('Suggestion');
457     my $new_id = $rs->create($suggestion)->id;
458
459     my $emailpurchasesuggestions = C4::Context->preference("EmailPurchaseSuggestions");
460     if ($emailpurchasesuggestions) {
461         my $full_suggestion = GetSuggestion( $new_id );
462         if (
463             my $letter = C4::Letters::GetPreparedLetter(
464                 module      => 'suggestions',
465                 letter_code => 'NEW_SUGGESTION',
466                 tables      => {
467                     'branches'    => $full_suggestion->{branchcode},
468                     'borrowers'   => $full_suggestion->{suggestedby},
469                     'suggestions' => $full_suggestion,
470                 },
471             )
472         ){
473
474             my $toaddress =
475               ( $emailpurchasesuggestions eq "BranchEmailAddress" )
476               ? ( Koha::Libraries->find( $full_suggestion->{branchcode} )
477                   ->branchemail
478                   || C4::Context->preference('KohaAdminEmailAddress') )
479               : C4::Context->preference($emailpurchasesuggestions);
480
481             C4::Letters::EnqueueLetter(
482                 {
483                     letter         => $letter,
484                     borrowernumber => $full_suggestion->{suggestedby},
485                     suggestionid   => $full_suggestion->{suggestionid},
486                     to_address     => $toaddress,
487                     message_transport_type => 'email',
488                 }
489             ) or warn "can't enqueue letter $letter";
490         }
491     }
492
493     return $new_id;
494 }
495
496 =head2 ModSuggestion
497
498 &ModSuggestion($suggestion)
499
500 Modify the suggestion according to the hash passed by ref.
501 The hash HAS to contain suggestionid
502 Data not defined is not updated unless it is a note or sort1
503 Send a mail to notify the user that did the suggestion.
504
505 Note that there is no function to modify a suggestion.
506
507 =cut
508
509 sub ModSuggestion {
510     my ($suggestion) = @_;
511     return unless( $suggestion and defined($suggestion->{suggestionid}) );
512
513     for my $field ( qw(
514         suggestedby
515         managedby
516         manageddate
517         acceptedby
518         accepteddate
519         rejectedby
520         rejecteddate
521         budgetid
522     ) ) {
523         # Set the fields to NULL if not given.
524         $suggestion->{$field} = undef
525           if exists $suggestion->{$field}
526           and ($suggestion->{$field} eq '0'
527             or $suggestion->{$field} eq '' );
528     }
529
530     my $rs = Koha::Database->new->schema->resultset('Suggestion')->find($suggestion->{suggestionid});
531     my $status_update_table = 1;
532     eval {
533         $rs->update($suggestion);
534     };
535     $status_update_table = 0 if( $@ );
536
537     if ( $suggestion->{STATUS} ) {
538
539         # fetch the entire updated suggestion so that we can populate the letter
540         my $full_suggestion = GetSuggestion( $suggestion->{suggestionid} );
541         my $patron = Koha::Patrons->find( $full_suggestion->{suggestedby} );
542
543         my $transport = (C4::Context->preference("FallbackToSMSIfNoEmail")) && ($patron->smsalertnumber) && (!$patron->email) ? 'sms' : 'email';
544
545         if (
546             my $letter = C4::Letters::GetPreparedLetter(
547                 module      => 'suggestions',
548                 letter_code => $full_suggestion->{STATUS},
549                 branchcode  => $full_suggestion->{branchcode},
550                 lang        => $patron->lang,
551                 tables      => {
552                     'branches'    => $full_suggestion->{branchcode},
553                     'borrowers'   => $full_suggestion->{suggestedby},
554                     'suggestions' => $full_suggestion,
555                     'biblio'      => $full_suggestion->{biblionumber},
556                 },
557             )
558           )
559         {
560             C4::Letters::EnqueueLetter(
561                 {
562                     letter         => $letter,
563                     borrowernumber => $full_suggestion->{suggestedby},
564                     suggestionid   => $full_suggestion->{suggestionid},
565                     LibraryName    => C4::Context->preference("LibraryName"),
566                     message_transport_type => $transport,
567                 }
568             ) or warn "can't enqueue letter $letter";
569         }
570     }
571     return $status_update_table;
572 }
573
574 =head2 ConnectSuggestionAndBiblio
575
576 &ConnectSuggestionAndBiblio($ordernumber,$biblionumber)
577
578 connect a suggestion to an existing biblio
579
580 =cut
581
582 sub ConnectSuggestionAndBiblio {
583     my ( $suggestionid, $biblionumber ) = @_;
584     my $dbh   = C4::Context->dbh;
585     my $query = q{
586         UPDATE suggestions
587         SET    biblionumber=?
588         WHERE  suggestionid=?
589     };
590     my $sth = $dbh->prepare($query);
591     $sth->execute( $biblionumber, $suggestionid );
592 }
593
594 =head2 DelSuggestion
595
596 &DelSuggestion($borrowernumber,$ordernumber)
597
598 Delete a suggestion. A borrower can delete a suggestion only if they are its owner.
599
600 =cut
601
602 sub DelSuggestion {
603     my ( $borrowernumber, $suggestionid, $type ) = @_;
604     my $dbh = C4::Context->dbh;
605
606     # check that the suggestion comes from the suggestor
607     my $query = q{
608         SELECT suggestedby
609         FROM   suggestions
610         WHERE  suggestionid=?
611     };
612     my $sth = $dbh->prepare($query);
613     $sth->execute($suggestionid);
614     my ($suggestedby) = $sth->fetchrow;
615     if ( $type eq 'intranet' || $suggestedby eq $borrowernumber ) {
616         my $queryDelete = q{
617             DELETE FROM suggestions
618             WHERE suggestionid=?
619         };
620         $sth = $dbh->prepare($queryDelete);
621         my $suggestiondeleted = $sth->execute($suggestionid);
622         return $suggestiondeleted;
623     }
624 }
625
626 =head2 DelSuggestionsOlderThan
627     &DelSuggestionsOlderThan($days)
628
629     Delete all suggestions older than TODAY-$days , that have be accepted or rejected.
630     We do now allow a negative number. If you want to delete all suggestions, just use Koha::Suggestions->delete or so.
631
632 =cut
633
634 sub DelSuggestionsOlderThan {
635     my ($days) = @_;
636     return unless $days && $days > 0;
637     my $dbh = C4::Context->dbh;
638     my $sth = $dbh->prepare(
639         q{
640         DELETE FROM suggestions
641         WHERE STATUS<>'ASKED'
642             AND date < ADDDATE(NOW(), ?)
643     }
644     );
645     $sth->execute("-$days");
646 }
647
648 sub GetUnprocessedSuggestions {
649     my ( $number_of_days_since_the_last_modification ) = @_;
650
651     $number_of_days_since_the_last_modification ||= 0;
652
653     my $dbh = C4::Context->dbh;
654
655     my $s = $dbh->selectall_arrayref(q|
656         SELECT *
657         FROM suggestions
658         WHERE STATUS = 'ASKED'
659             AND budgetid IS NOT NULL
660             AND CAST(NOW() AS DATE) - INTERVAL ? DAY = CAST(suggesteddate AS DATE)
661     |, { Slice => {} }, $number_of_days_since_the_last_modification );
662     return $s;
663 }
664
665 1;
666 __END__
667
668
669 =head1 AUTHOR
670
671 Koha Development Team <http://koha-community.org/>
672
673 =cut
674