misc/cronjobs/advance_notices.pl

   1 #!/usr/bin/perl
   2
   3 # Copyright 2008 LibLime
   4 #
   5 # This file is part of Koha.
   6 #
   7 # Koha is free software; you can redistribute it and/or modify it
   8 # under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # Koha is distributed in the hope that it will be useful, but
  13 # WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  19
  20 =head1 NAME
  21
  22 advance_notices.pl - cron script to put item due reminders into message queue
  23
  24 =head1 SYNOPSIS
  25
  26 ./advance_notices.pl -c
  27
  28 or, in crontab:
  29 0 1 * * * advance_notices.pl -c
  30
  31 =head1 DESCRIPTION
  32
  33 This script prepares pre-due and item due reminders to be sent to
  34 patrons. It queues them in the message queue, which is processed by
  35 the process_message_queue.pl cronjob. The type and timing of the
  36 messages can be configured by the patrons in their "My Alerts" tab in
  37 the OPAC.
  38
  39 =cut
  40
  41 use strict;
  42 use warnings;
  43 use Getopt::Long;
  44 use Pod::Usage;
  45 use Data::Dumper;
  46 BEGIN {
  47     # find Koha's Perl modules
  48     # test carefully before changing this
  49     use FindBin;
  50     eval { require "$FindBin::Bin/../kohalib.pl" };
  51 }
  52 use Koha::Script -cron;
  53 use C4::Biblio;
  54 use C4::Context;
  55 use C4::Letters;
  56 use C4::Members;
  57 use C4::Members::Messaging;
  58 use C4::Overdues;
  59 use Koha::DateUtils;
  60 use C4::Log;
  61 use Koha::Items;
  62 use Koha::Libraries;
  63 use Koha::Patrons;
  64
  65 =head1 NAME
  66
  67 advance_notices.pl - prepare messages to be sent to patrons for nearly due, or due, items
  68
  69 =head1 SYNOPSIS
  70
  71 advance_notices.pl
  72   [ -n ][ -m <number of days> ][ --itemscontent <comma separated field list> ][ -c ]
  73
  74 =head1 OPTIONS
  75
  76 =over 8
  77
  78 =item B<--help>
  79
  80 Print a brief help message and exits.
  81
  82 =item B<--man>
  83
  84 Prints the manual page and exits.
  85
  86 =item B<-v>
  87
  88 Verbose. Without this flag set, only fatal errors are reported.
  89
  90 =item B<-n>
  91
  92 Do not send any email. Advanced or due notices that would have been sent to
  93 the patrons are printed to standard out.
  94
  95 =item B<-m>
  96
  97 Defines the maximum number of days in advance to send advance notices.
  98
  99 =item B<-c>
 100
 101 Confirm flag: Add this option. The script will only print a usage
 102 statement otherwise.
 103
 104 =item B<--itemscontent>
 105
 106 comma separated list of fields that get substituted into templates in
 107 places of the E<lt>E<lt>items.contentE<gt>E<gt> placeholder. This
 108 defaults to date_due,title,author,barcode
 109
 110 Other possible values come from fields in the biblios, items and
 111 issues tables.
 112
 113 =item B<--digest-per-branch>
 114
 115 Flag to indicate that generation of message digests should be
 116 performed separately for each branch.
 117
 118 A patron could potentially have loans at several different branches
 119 There is no natural branch to set as the sender on the aggregated
 120 message in this situation so the default behavior is to use the
 121 borrowers home branch.  This could surprise to the borrower when
 122 message sender is a library where they have not borrowed anything.
 123
 124 Enabling this flag ensures that the issuing library is the sender of
 125 the digested message.  It has no effect unless the borrower has
 126 chosen 'Digests only' on the advance messages.
 127
 128 =back
 129
 130 =head1 DESCRIPTION
 131
 132 This script is designed to alert patrons when items are due, or coming due
 133
 134 =head2 Configuration
 135
 136 This script pays attention to the advanced notice configuration
 137 performed by borrowers in the OPAC, or by staff in the patron detail page of the intranet. The content of the messages is configured in Tools -> Notices and slips. Advanced notices use the PREDUE template, due notices use DUE. More information about the use of this
 138 section of Koha is available in the Koha manual.
 139
 140 =head2 Outgoing emails
 141
 142 Typically, messages are prepared for each patron with due
 143 items, and who have selected (or the library has elected for them) Advance or Due notices.
 144
 145 These emails are staged in the outgoing message queue, as are messages
 146 produced by other features of Koha. This message queue must be
 147 processed regularly by the
 148 F<misc/cronjobs/process_message_queue.pl> program.
 149
 150 In the event that the C<-n> flag is passed to this program, no emails
 151 are sent. Instead, messages are sent on standard output from this
 152 program. They may be redirected to a file if desired.
 153
 154 =head2 Templates
 155
 156 Templates can contain variables enclosed in double angle brackets like
 157 E<lt>E<lt>thisE<gt>E<gt>. Those variables will be replaced with values
 158 specific to the overdue items or relevant patron. Available variables
 159 are:
 160
 161 =over
 162
 163 =item E<lt>E<lt>items.contentE<gt>E<gt>
 164
 165 one line for each item, each line containing a tab separated list of
 166 date due, title, author, barcode
 167
 168 =item E<lt>E<lt>borrowers.*E<gt>E<gt>
 169
 170 any field from the borrowers table
 171
 172 =item E<lt>E<lt>branches.*E<gt>E<gt>
 173
 174 any field from the branches table
 175
 176 =back
 177
 178 =head1 SEE ALSO
 179
 180 The F<misc/cronjobs/overdue_notices.pl> program allows you to send
 181 messages to patrons when their messages are overdue.
 182
 183 =cut
 184
 185 binmode( STDOUT, ':encoding(UTF-8)' );
 186
 187 # These are defaults for command line options.
 188 my $confirm;                                                        # -c: Confirm that the user has read and configured this script.
 189 my $nomail;                                                         # -n: No mail. Will not send any emails.
 190 my $mindays     = 0;                                                # -m: Maximum number of days in advance to send notices
 191 my $maxdays     = 30;                                               # -e: the End of the time period
 192 my $verbose     = 0;                                                # -v: verbose
 193 my $digest_per_branch = 0;                                          # -digest-per-branch: Prepare and send digests per branch
 194 my $itemscontent = join(',',qw( date_due title author barcode ));
 195
 196 my $help    = 0;
 197 my $man     = 0;
 198
 199 GetOptions(
 200             'help|?'         => \$help,
 201             'man'            => \$man,
 202             'c'              => \$confirm,
 203             'n'              => \$nomail,
 204             'm:i'            => \$maxdays,
 205             'v'              => \$verbose,
 206             'digest-per-branch' => \$digest_per_branch,
 207             'itemscontent=s' => \$itemscontent,
 208        )or pod2usage(2);
 209 pod2usage(1) if $help;
 210 pod2usage( -verbose => 2 ) if $man;
 211
 212 # Since advance notice options are not visible in the web-interface
 213 # unless EnhancedMessagingPreferences is on, let the user know that
 214 # this script probably isn't going to do much
 215 if ( ! C4::Context->preference('EnhancedMessagingPreferences') ) {
 216     warn <<'END_WARN';
 217
 218 The "EnhancedMessagingPreferences" syspref is off.
 219 Therefore, it is unlikely that this script will actually produce any messages to be sent.
 220 To change this, edit the "EnhancedMessagingPreferences" syspref.
 221
 222 END_WARN
 223 }
 224 unless ($confirm) {
 225      pod2usage(1);
 226 }
 227 cronlogaction();
 228
 229 # The fields that will be substituted into <<items.content>>
 230 my @item_content_fields = split(/,/,$itemscontent);
 231
 232 warn 'getting upcoming due issues' if $verbose;
 233 my $upcoming_dues = C4::Circulation::GetUpcomingDueIssues( { days_in_advance => $maxdays } );
 234 warn 'found ' . scalar( @$upcoming_dues ) . ' issues' if $verbose;
 235
 236 # hash of borrowernumber to number of items upcoming
 237 # for patrons wishing digests only.
 238 my $upcoming_digest = {};
 239 my $due_digest = {};
 240
 241 my $dbh = C4::Context->dbh();
 242 my $sth = $dbh->prepare(<<'END_SQL');
 243 SELECT biblio.*, items.*, issues.*
 244   FROM issues,items,biblio
 245   WHERE items.itemnumber=issues.itemnumber
 246     AND biblio.biblionumber=items.biblionumber
 247     AND issues.borrowernumber = ?
 248     AND issues.itemnumber = ?
 249     AND (TO_DAYS(date_due)-TO_DAYS(NOW()) = ?)
 250 END_SQL
 251
 252 my $admin_adress = C4::Context->preference('KohaAdminEmailAddress');
 253
 254 my @letters;
 255 UPCOMINGITEM: foreach my $upcoming ( @$upcoming_dues ) {
 256     @letters = ();
 257     warn 'examining ' . $upcoming->{'itemnumber'} . ' upcoming due items' if $verbose;
 258
 259     my $from_address = $upcoming->{branchemail} || $admin_adress;
 260
 261     my $borrower_preferences;
 262     if ( 0 == $upcoming->{'days_until_due'} ) {
 263         # This item is due today. Send an 'item due' message.
 264         $borrower_preferences = C4::Members::Messaging::GetMessagingPreferences( { borrowernumber => $upcoming->{'borrowernumber'},
 265                                                                                    message_name   => 'item_due' } );
 266         next unless $borrower_preferences;
 267
 268         if ( $borrower_preferences->{'wants_digest'} ) {
 269             # cache this one to process after we've run through all of the items.
 270             if ($digest_per_branch) {
 271                 $due_digest->{ $upcoming->{branchcode} }->{ $upcoming->{borrowernumber} }->{email} = $from_address;
 272                 $due_digest->{ $upcoming->{branchcode} }->{ $upcoming->{borrowernumber} }->{count}++;
 273             } else {
 274                 $due_digest->{ $upcoming->{borrowernumber} }->{email} = $from_address;
 275                 $due_digest->{ $upcoming->{borrowernumber} }->{count}++;
 276             }
 277         } else {
 278             my $item = Koha::Items->find( $upcoming->{itemnumber} );
 279             my $letter_type = 'DUE';
 280             $sth->execute($upcoming->{'borrowernumber'},$upcoming->{'itemnumber'},'0');
 281             my $titles = "";
 282             while ( my $item_info = $sth->fetchrow_hashref()) {
 283                 $titles .= C4::Letters::get_item_content( { item => $item_info, item_content_fields => \@item_content_fields } );
 284             }
 285
 286             ## Get branch info for borrowers home library.
 287             foreach my $transport ( keys %{$borrower_preferences->{'transports'}} ) {
 288                 my $letter = parse_letter( { letter_code    => $letter_type,
 289                                       borrowernumber => $upcoming->{'borrowernumber'},
 290                                       branchcode     => $upcoming->{'branchcode'},
 291                                       biblionumber   => $item->biblionumber,
 292                                       itemnumber     => $upcoming->{'itemnumber'},
 293                                       substitute     => { 'items.content' => $titles },
 294                                       message_transport_type => $transport,
 295                                     } )
 296                     or warn "no letter of type '$letter_type' found for borrowernumber ".$upcoming->{'borrowernumber'}.". Please see sample_notices.sql";
 297                 push @letters, $letter if $letter;
 298             }
 299         }
 300     } else {
 301         $borrower_preferences = C4::Members::Messaging::GetMessagingPreferences( { borrowernumber => $upcoming->{'borrowernumber'},
 302                                                                                    message_name   => 'advance_notice' } );
 303         next UPCOMINGITEM unless $borrower_preferences && exists $borrower_preferences->{'days_in_advance'};
 304         next UPCOMINGITEM unless $borrower_preferences->{'days_in_advance'} == $upcoming->{'days_until_due'};
 305
 306         if ( $borrower_preferences->{'wants_digest'} ) {
 307             # cache this one to process after we've run through all of the items.
 308             if ($digest_per_branch) {
 309                 $upcoming_digest->{ $upcoming->{branchcode} }->{ $upcoming->{borrowernumber} }->{email} = $from_address;
 310                 $upcoming_digest->{ $upcoming->{branchcode} }->{ $upcoming->{borrowernumber} }->{count}++;
 311             } else {
 312                 $upcoming_digest->{ $upcoming->{borrowernumber} }->{email} = $from_address;
 313                 $upcoming_digest->{ $upcoming->{borrowernumber} }->{count}++;
 314             }
 315         } else {
 316             my $item = Koha::Items->find( $upcoming->{itemnumber} );
 317             my $letter_type = 'PREDUE';
 318             $sth->execute($upcoming->{'borrowernumber'},$upcoming->{'itemnumber'},$borrower_preferences->{'days_in_advance'});
 319             my $titles = "";
 320             while ( my $item_info = $sth->fetchrow_hashref()) {
 321                 $titles .= C4::Letters::get_item_content( { item => $item_info, item_content_fields => \@item_content_fields } );
 322             }
 323
 324             ## Get branch info for borrowers home library.
 325             foreach my $transport ( keys %{$borrower_preferences->{'transports'}} ) {
 326                 my $letter = parse_letter( { letter_code    => $letter_type,
 327                                       borrowernumber => $upcoming->{'borrowernumber'},
 328                                       branchcode     => $upcoming->{'branchcode'},
 329                                       biblionumber   => $item->biblionumber,
 330                                       itemnumber     => $upcoming->{'itemnumber'},
 331                                       substitute     => { 'items.content' => $titles },
 332                                       message_transport_type => $transport,
 333                                     } )
 334                     or warn "no letter of type '$letter_type' found for borrowernumber ".$upcoming->{'borrowernumber'}.". Please see sample_notices.sql";
 335                 push @letters, $letter if $letter;
 336             }
 337         }
 338     }
 339
 340     # If we have prepared a letter, send it.
 341     if ( @letters ) {
 342       if ($nomail) {
 343         for my $letter ( @letters ) {
 344             local $, = "\f";
 345             print $letter->{'content'};
 346         }
 347       }
 348       else {
 349         for my $letter ( @letters ) {
 350             C4::Letters::EnqueueLetter( { letter                 => $letter,
 351                                           borrowernumber         => $upcoming->{'borrowernumber'},
 352                                           from_address           => $from_address,
 353                                           message_transport_type => $letter->{message_transport_type} } );
 354         }
 355       }
 356     }
 357 }
 358
 359
 360
 361 # Now, run through all the people that want digests and send them
 362
 363 my $sth_digest = $dbh->prepare(<<'END_SQL');
 364 SELECT biblio.*, items.*, issues.*
 365   FROM issues,items,biblio
 366   WHERE items.itemnumber=issues.itemnumber
 367     AND biblio.biblionumber=items.biblionumber
 368     AND issues.borrowernumber = ?
 369     AND (TO_DAYS(date_due)-TO_DAYS(NOW()) = ?)
 370 END_SQL
 371
 372 if ($digest_per_branch) {
 373     while (my ($branchcode, $digests) = each %$upcoming_digest) {
 374         send_digests({
 375             sth => $sth_digest,
 376             digests => $digests,
 377             letter_code => 'PREDUEDGST',
 378             branchcode => $branchcode,
 379             get_item_info => sub {
 380                 my $params = shift;
 381                 $params->{sth}->execute($params->{borrowernumber},
 382                                         $params->{borrower_preferences}->{'days_in_advance'});
 383                 return sub {
 384                     $params->{sth}->fetchrow_hashref;
 385                 };
 386             }
 387         });
 388     }
 389
 390     while (my ($branchcode, $digests) = each %$due_digest) {
 391         send_digests({
 392             sth => $sth_digest,
 393             digest => $due_digest,
 394             letter_code => 'DUEGST',
 395             branchcode => $branchcode,
 396             get_item_info => sub {
 397                 my $params = shift;
 398                 $params->{sth}->execute($params->{borrowernumber}, 0);
 399                 return sub {
 400                     $params->{sth}->fetchrow_hashref;
 401                 };
 402             }
 403         });
 404     }
 405 } else {
 406     send_digests({
 407         sth => $sth_digest,
 408         digests => $upcoming_digest,
 409         letter_code => 'PREDUEDGST',
 410         get_item_info => sub {
 411             my $params = shift;
 412             $params->{sth}->execute($params->{borrowernumber},
 413                                     $params->{borrower_preferences}->{'days_in_advance'});
 414             return sub {
 415                 $params->{sth}->fetchrow_hashref;
 416             };
 417         }
 418     });
 419
 420     send_digests({
 421         sth => $sth_digest,
 422         digest => $due_digest,
 423         letter_code => 'DUEGST',
 424         get_item_info => sub {
 425             my $params = shift;
 426             $params->{sth}->execute($params->{borrowernumber}, 0);
 427             return sub {
 428                 $params->{sth}->fetchrow_hashref;
 429             };
 430         }
 431     });
 432 }
 433
 434 =head1 METHODS
 435
 436 =head2 parse_letter
 437
 438 =cut
 439
 440 sub parse_letter {
 441     my $params = shift;
 442
 443     foreach my $required ( qw( letter_code borrowernumber ) ) {
 444         return unless exists $params->{$required};
 445     }
 446     my $patron = Koha::Patrons->find( $params->{borrowernumber} );
 447
 448     my %table_params = ( 'borrowers' => $params->{'borrowernumber'} );
 449
 450     if ( my $p = $params->{'branchcode'} ) {
 451         $table_params{'branches'} = $p;
 452     }
 453     if ( my $p = $params->{'itemnumber'} ) {
 454         $table_params{'issues'} = $p;
 455         $table_params{'items'} = $p;
 456     }
 457     if ( my $p = $params->{'biblionumber'} ) {
 458         $table_params{'biblio'} = $p;
 459         $table_params{'biblioitems'} = $p;
 460     }
 461
 462     return C4::Letters::GetPreparedLetter (
 463         module => 'circulation',
 464         letter_code => $params->{'letter_code'},
 465         branchcode => $table_params{'branches'},
 466         lang => $patron->lang,
 467         substitute => $params->{'substitute'},
 468         tables     => \%table_params,
 469         message_transport_type => $params->{message_transport_type},
 470     );
 471 }
 472
 473 =head2 get_branch_info
 474
 475 =cut
 476
 477 sub get_branch_info {
 478     my ( $borrowernumber ) = @_;
 479
 480     ## Get branch info for borrowers home library.
 481     my $patron = Koha::Patrons->find( $borrowernumber );
 482     my $branch = $patron->library->unblessed;
 483     my %branch_info;
 484     foreach my $key( keys %$branch ) {
 485         $branch_info{"branches.$key"} = $branch->{$key};
 486     }
 487
 488     return %branch_info;
 489 }
 490
 491 =head2 send_digests
 492
 493     send_digests({
 494         digests => ...,
 495         sth => ...,
 496         letter_code => ...,
 497         get_item_info => ...,
 498     })
 499
 500 Enqueue digested letters (or print them if -n was passed at command line).
 501
 502 Parameters:
 503
 504 =over 4
 505
 506 =item C<$digests>
 507
 508 Reference to the array of digested messages.
 509
 510 =item C<$sth>
 511
 512 Prepared statement handle for fetching overdue issues.
 513
 514 =item C<$letter_code>
 515
 516 String that denote the letter code.
 517
 518 =item C<$get_item_info>
 519
 520 Subroutine for executing prepared statement.  Takes parameters $sth,
 521 $borrowernumber and $borrower_parameters and return a generator
 522 function that produce the matching rows.
 523
 524 =back
 525
 526 =cut
 527
 528 sub send_digests {
 529     my $params = shift;
 530
 531     PATRON: while ( my ( $borrowernumber, $digest ) = each %{$params->{digests}} ) {
 532         @letters = ();
 533         my $count = $digest->{count};
 534         my $from_address = $digest->{email};
 535
 536         my %branch_info;
 537         my $branchcode;
 538
 539         if (defined($params->{branchcode})) {
 540             %branch_info = ();
 541             $branchcode = $params->{branchcode};
 542         } else {
 543             ## Get branch info for borrowers home library.
 544             %branch_info = get_branch_info( $borrowernumber );
 545             $branchcode = $branch_info{'branches.branchcode'};
 546         }
 547
 548         my $borrower_preferences =
 549             C4::Members::Messaging::GetMessagingPreferences(
 550                 {
 551                     borrowernumber => $borrowernumber,
 552                     message_name   => 'advance_notice'
 553                 }
 554             );
 555
 556         next PATRON unless $borrower_preferences; # how could this happen?
 557
 558         my $next_item_info = $params->{get_item_info}->({
 559             sth => $params->{sth},
 560             borrowernumber => $borrowernumber,
 561             borrower_preferences => $borrower_preferences
 562         });
 563         my $titles = "";
 564         while ( my $item_info = $next_item_info->()) {
 565             $titles .= C4::Letters::get_item_content( { item => $item_info, item_content_fields => \@item_content_fields } );
 566         }
 567
 568         foreach my $transport ( keys %{ $borrower_preferences->{'transports'} } ) {
 569             my $letter = parse_letter(
 570                 {
 571                     letter_code    => $params->{letter_code},
 572                     borrowernumber => $borrowernumber,
 573                     substitute     => {
 574                         count           => $count,
 575                         'items.content' => $titles,
 576                         %branch_info
 577                     },
 578                     branchcode     => $branchcode,
 579                     message_transport_type => $transport
 580                 }
 581             ) || warn "no letter of type '$params->{letter_type}' found for borrowernumber $borrowernumber. Please see sample_notices.sql";
 582             push @letters, $letter if $letter;
 583         }
 584
 585         if ( @letters ) {
 586             if ($nomail) {
 587                 for my $letter ( @letters ) {
 588                     local $, = "\f";
 589                     print $letter->{'content'};
 590                 }
 591             }
 592             else {
 593                 for my $letter ( @letters ) {
 594                     C4::Letters::EnqueueLetter( { letter                 => $letter,
 595                                                   borrowernumber         => $borrowernumber,
 596                                                   from_address           => $from_address,
 597                                                   message_transport_type => $letter->{message_transport_type} } );
 598                 }
 599             }
 600         }
 601     }
 602 }
 603
 604
 605 1;
 606
 607 __END__