C4/MarcModificationTemplates.pm

   1 package C4::MarcModificationTemplates;
   2
   3 # This file is part of Koha.
   4 #
   5 # Copyright 2010 Kyle M Hall <kyle.m.hall@gmail.com>
   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 use Modern::Perl;
  21
  22 use DateTime;
  23
  24 use C4::Context;
  25 use Koha::SimpleMARC;
  26
  27 use vars qw($VERSION @ISA @EXPORT);
  28
  29 use constant DEBUG => 0;
  30
  31 BEGIN {
  32     $VERSION = 1.00;    # set the version for version checking
  33     @ISA = qw(Exporter);
  34     @EXPORT = qw(
  35         &GetModificationTemplates
  36         &AddModificationTemplate
  37         &DelModificationTemplate
  38
  39         &GetModificationTemplateAction
  40         &GetModificationTemplateActions
  41
  42         &AddModificationTemplateAction
  43         &ModModificationTemplateAction
  44         &DelModificationTemplateAction
  45         &MoveModificationTemplateAction
  46
  47         &ModifyRecordsWithTemplate
  48         &ModifyRecordWithTemplate
  49     );
  50 }
  51
  52
  53 =head1 NAME
  54
  55 C4::MarcModificationTemplates - Module to manage MARC Modification Templates
  56
  57 =head1 DESCRIPTION
  58
  59 MARC Modification Templates are a tool for marc batch imports,
  60 so that librarians can set up templates for various vendors'
  61 files telling Koha what fields to insert data into.
  62
  63 =head1 FUNCTIONS
  64
  65 =cut
  66
  67 =head2 GetModificationTemplates
  68
  69   my @templates = GetModificationTemplates( $template_id );
  70
  71   Passing optional $template_id marks it as the selected template.
  72
  73 =cut
  74
  75 sub GetModificationTemplates {
  76   my ( $template_id ) = @_;
  77   warn("C4::MarcModificationTemplates::GetModificationTemplates( $template_id )") if DEBUG;
  78
  79   my $dbh = C4::Context->dbh;
  80   my $sth = $dbh->prepare("SELECT * FROM marc_modification_templates");
  81   $sth->execute();
  82
  83   my @templates;
  84   while ( my $template = $sth->fetchrow_hashref() ) {
  85     $template->{'selected'} = 1
  86         if $template_id && $template->{'template_id'} eq $template_id;
  87     push( @templates, $template );
  88   }
  89
  90   return @templates;
  91 }
  92
  93 =head2
  94   AddModificationTemplate
  95
  96   $template_id = AddModificationTemplate( $template_name[, $template_id ] );
  97
  98   If $template_id is supplied, the actions from that template will be copied
  99   into the newly created template.
 100 =cut
 101
 102 sub AddModificationTemplate {
 103   my ( $template_name, $template_id_copy ) = @_;
 104
 105   my $dbh = C4::Context->dbh;
 106   my $sth = $dbh->prepare("INSERT INTO marc_modification_templates ( name ) VALUES ( ? )");
 107   $sth->execute( $template_name );
 108
 109   $sth = $dbh->prepare("SELECT * FROM marc_modification_templates WHERE name = ?");
 110   $sth->execute( $template_name );
 111   my $row = $sth->fetchrow_hashref();
 112   my $template_id = $row->{'template_id'};
 113
 114   if ( $template_id_copy ) {
 115     my @actions = GetModificationTemplateActions( $template_id_copy );
 116     foreach my $action ( @actions ) {
 117       AddModificationTemplateAction(
 118         $template_id,
 119         $action->{'action'},
 120         $action->{'field_number'},
 121         $action->{'from_field'},
 122         $action->{'from_subfield'},
 123         $action->{'field_value'},
 124         $action->{'to_field'},
 125         $action->{'to_subfield'},
 126         $action->{'to_regex_search'},
 127         $action->{'to_regex_replace'},
 128         $action->{'to_regex_modifiers'},
 129         $action->{'conditional'},
 130         $action->{'conditional_field'},
 131         $action->{'conditional_subfield'},
 132         $action->{'conditional_comparison'},
 133         $action->{'conditional_value'},
 134         $action->{'conditional_regex'},
 135         $action->{'description'},
 136       );
 137
 138     }
 139   }
 140
 141   return $template_id;
 142 }
 143
 144 =head2
 145   DelModificationTemplate
 146
 147   DelModificationTemplate( $template_id );
 148 =cut
 149
 150 sub DelModificationTemplate {
 151   my ( $template_id ) = @_;
 152
 153   my $dbh = C4::Context->dbh;
 154   my $sth = $dbh->prepare("DELETE FROM marc_modification_templates WHERE template_id = ?");
 155   $sth->execute( $template_id );
 156 }
 157
 158 =head2
 159   GetModificationTemplateAction
 160
 161   my $action = GetModificationTemplateAction( $mmta_id );
 162 =cut
 163
 164 sub GetModificationTemplateAction {
 165   my ( $mmta_id ) = @_;
 166
 167   my $dbh = C4::Context->dbh;
 168   my $sth = $dbh->prepare("SELECT * FROM marc_modification_template_actions WHERE mmta_id = ?");
 169   $sth->execute( $mmta_id );
 170   my $action = $sth->fetchrow_hashref();
 171
 172   return $action;
 173 }
 174
 175 =head2
 176   GetModificationTemplateActions
 177
 178   my @actions = GetModificationTemplateActions( $template_id );
 179 =cut
 180
 181 sub GetModificationTemplateActions {
 182   my ( $template_id ) = @_;
 183
 184   warn( "C4::MarcModificationTemplates::GetModificationTemplateActions( $template_id )" ) if DEBUG;
 185
 186   my $dbh = C4::Context->dbh;
 187   my $sth = $dbh->prepare("SELECT * FROM marc_modification_template_actions WHERE template_id = ? ORDER BY ordering");
 188   $sth->execute( $template_id );
 189
 190   my @actions;
 191   while ( my $action = $sth->fetchrow_hashref() ) {
 192     push( @actions, $action );
 193   }
 194
 195   warn( Data::Dumper::Dumper( @actions ) ) if DEBUG > 4;
 196
 197   return @actions;
 198 }
 199
 200 =head2
 201   AddModificationTemplateAction
 202
 203   AddModificationTemplateAction(
 204     $template_id, $action, $field_number,
 205     $from_field, $from_subfield, $field_value,
 206     $to_field, $to_subfield, $to_regex_search, $to_regex_replace, $to_regex_modifiers
 207     $conditional, $conditional_field, $conditional_subfield,
 208     $conditional_comparison, $conditional_value,
 209     $conditional_regex, $description
 210   );
 211
 212   Adds a new action to the given modification template.
 213
 214 =cut
 215
 216 sub AddModificationTemplateAction {
 217   my (
 218     $template_id,
 219     $action,
 220     $field_number,
 221     $from_field,
 222     $from_subfield,
 223     $field_value,
 224     $to_field,
 225     $to_subfield,
 226     $to_regex_search,
 227     $to_regex_replace,
 228     $to_regex_modifiers,
 229     $conditional,
 230     $conditional_field,
 231     $conditional_subfield,
 232     $conditional_comparison,
 233     $conditional_value,
 234     $conditional_regex,
 235     $description
 236   ) = @_;
 237
 238   warn( "C4::MarcModificationTemplates::AddModificationTemplateAction( $template_id, $action,
 239                     $field_number, $from_field, $from_subfield, $field_value, $to_field, $to_subfield,
 240                     $to_regex_search, $to_regex_replace, $to_regex_modifiers, $conditional, $conditional_field, $conditional_subfield, $conditional_comparison,
 241                     $conditional_value, $conditional_regex, $description )" ) if DEBUG;
 242
 243   $conditional_regex ||= '0';
 244
 245   my $dbh = C4::Context->dbh;
 246   my $sth = $dbh->prepare( 'SELECT MAX(ordering) + 1 AS next_ordering FROM marc_modification_template_actions WHERE template_id = ?' );
 247   $sth->execute( $template_id );
 248   my $row = $sth->fetchrow_hashref;
 249   my $ordering = $row->{'next_ordering'} || 1;
 250
 251   my $query = "
 252   INSERT INTO marc_modification_template_actions (
 253   mmta_id,
 254   template_id,
 255   ordering,
 256   action,
 257   field_number,
 258   from_field,
 259   from_subfield,
 260   field_value,
 261   to_field,
 262   to_subfield,
 263   to_regex_search,
 264   to_regex_replace,
 265   to_regex_modifiers,
 266   conditional,
 267   conditional_field,
 268   conditional_subfield,
 269   conditional_comparison,
 270   conditional_value,
 271   conditional_regex,
 272   description
 273   )
 274   VALUES ( NULL, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ? )";
 275
 276   $sth = $dbh->prepare( $query );
 277
 278   $sth->execute(
 279     $template_id,
 280     $ordering,
 281     $action,
 282     $field_number,
 283     $from_field,
 284     $from_subfield,
 285     $field_value,
 286     $to_field,
 287     $to_subfield,
 288     $to_regex_search,
 289     $to_regex_replace,
 290     $to_regex_modifiers,
 291     $conditional,
 292     $conditional_field,
 293     $conditional_subfield,
 294     $conditional_comparison,
 295     $conditional_value,
 296     $conditional_regex,
 297     $description
 298   );
 299 }
 300
 301 =head2
 302   ModModificationTemplateAction
 303
 304   ModModificationTemplateAction(
 305     $mmta_id, $action, $field_number, $from_field,
 306     $from_subfield, $field_value, $to_field,
 307     $to_subfield, $to_regex_search, $to_regex_replace, $to_regex_modifiers, $conditional,
 308     $conditional_field, $conditional_subfield,
 309     $conditional_comparison, $conditional_value,
 310     $conditional_regex, $description
 311   );
 312
 313   Modifies an existing action.
 314
 315 =cut
 316
 317 sub ModModificationTemplateAction {
 318   my (
 319     $mmta_id,
 320     $action,
 321     $field_number,
 322     $from_field,
 323     $from_subfield,
 324     $field_value,
 325     $to_field,
 326     $to_subfield,
 327     $to_regex_search,
 328     $to_regex_replace,
 329     $to_regex_modifiers,
 330     $conditional,
 331     $conditional_field,
 332     $conditional_subfield,
 333     $conditional_comparison,
 334     $conditional_value,
 335     $conditional_regex,
 336     $description
 337   ) = @_;
 338
 339   my $dbh = C4::Context->dbh;
 340
 341   my $query = "
 342   UPDATE marc_modification_template_actions SET
 343   action = ?,
 344   field_number = ?,
 345   from_field = ?,
 346   from_subfield = ?,
 347   field_value = ?,
 348   to_field = ?,
 349   to_subfield = ?,
 350   to_regex_search = ?,
 351   to_regex_replace = ?,
 352   to_regex_modifiers = ?,
 353   conditional = ?,
 354   conditional_field = ?,
 355   conditional_subfield = ?,
 356   conditional_comparison = ?,
 357   conditional_value = ?,
 358   conditional_regex = ?,
 359   description = ?
 360   WHERE mmta_id = ?";
 361
 362   my $sth = $dbh->prepare( $query );
 363
 364   $sth->execute(
 365     $action,
 366     $field_number,
 367     $from_field,
 368     $from_subfield,
 369     $field_value,
 370     $to_field,
 371     $to_subfield,
 372     $to_regex_search,
 373     $to_regex_replace,
 374     $to_regex_modifiers,
 375     $conditional,
 376     $conditional_field,
 377     $conditional_subfield,
 378     $conditional_comparison,
 379     $conditional_value,
 380     $conditional_regex,
 381     $description,
 382     $mmta_id
 383   );
 384 }
 385
 386
 387 =head2
 388   DelModificationTemplateAction
 389
 390   DelModificationTemplateAction( $mmta_id );
 391
 392   Deletes the given template action.
 393 =cut
 394
 395 sub DelModificationTemplateAction {
 396   my ( $mmta_id ) = @_;
 397
 398   my $action = GetModificationTemplateAction( $mmta_id );
 399
 400   my $dbh = C4::Context->dbh;
 401   my $sth = $dbh->prepare("DELETE FROM marc_modification_template_actions WHERE mmta_id = ?");
 402   $sth->execute( $mmta_id );
 403
 404   $sth = $dbh->prepare("UPDATE marc_modification_template_actions SET ordering = ordering - 1 WHERE template_id = ? AND ordering > ?");
 405   $sth->execute( $action->{'template_id'}, $action->{'ordering'} );
 406 }
 407
 408 =head2
 409   MoveModificationTemplateAction
 410
 411   MoveModificationTemplateAction( $mmta_id, $where );
 412
 413   Changes the order for the given action.
 414   Options for $where are 'up', 'down', 'top' and 'bottom'
 415 =cut
 416 sub MoveModificationTemplateAction {
 417   my ( $mmta_id, $where ) = @_;
 418
 419   my $action = GetModificationTemplateAction( $mmta_id );
 420
 421   return if ( $action->{'ordering'} eq '1' && ( $where eq 'up' || $where eq 'top' ) );
 422   return if ( $action->{'ordering'} eq GetModificationTemplateActions( $action->{'template_id'} ) && ( $where eq 'down' || $where eq 'bottom' ) );
 423
 424   my $dbh = C4::Context->dbh;
 425   my ( $sth, $query );
 426
 427   if ( $where eq 'up' || $where eq 'down' ) {
 428
 429     ## For up and down, we just swap the ordering number with the one above or below it.
 430
 431     ## Change the ordering for the other action
 432     $query = "UPDATE marc_modification_template_actions SET ordering = ? WHERE template_id = ? AND ordering = ?";
 433
 434     my $ordering = $action->{'ordering'};
 435     $ordering-- if ( $where eq 'up' );
 436     $ordering++ if ( $where eq 'down' );
 437
 438     $sth = $dbh->prepare( $query );
 439     $sth->execute( $action->{'ordering'}, $action->{'template_id'}, $ordering );
 440
 441     ## Change the ordering for this action
 442     $query = "UPDATE marc_modification_template_actions SET ordering = ? WHERE mmta_id = ?";
 443     $sth = $dbh->prepare( $query );
 444     $sth->execute( $ordering, $action->{'mmta_id'} );
 445
 446   } elsif ( $where eq 'top' ) {
 447
 448     $sth = $dbh->prepare('UPDATE marc_modification_template_actions SET ordering = ordering + 1 WHERE template_id = ? AND ordering < ?');
 449     $sth->execute( $action->{'template_id'}, $action->{'ordering'} );
 450
 451     $sth = $dbh->prepare('UPDATE marc_modification_template_actions SET ordering = 1 WHERE mmta_id = ?');
 452     $sth->execute( $mmta_id );
 453
 454   } elsif ( $where eq 'bottom' ) {
 455
 456     my $ordering = GetModificationTemplateActions( $action->{'template_id'} );
 457
 458     $sth = $dbh->prepare('UPDATE marc_modification_template_actions SET ordering = ordering - 1 WHERE template_id = ? AND ordering > ?');
 459     $sth->execute( $action->{'template_id'}, $action->{'ordering'} );
 460
 461     $sth = $dbh->prepare('UPDATE marc_modification_template_actions SET ordering = ? WHERE mmta_id = ?');
 462     $sth->execute( $ordering, $mmta_id );
 463
 464   }
 465
 466 }
 467
 468 =head2
 469   ModifyRecordsWithTemplate
 470
 471   ModifyRecordsWithTemplate( $template_id, $batch );
 472
 473   Accepts a template id and a MARC::Batch object.
 474 =cut
 475
 476 sub ModifyRecordsWithTemplate {
 477   my ( $template_id, $batch ) = @_;
 478   warn( "C4::MarcModificationTemplates::ModifyRecordsWithTemplate( $template_id, $batch )" ) if DEBUG;
 479
 480   while ( my $record = $batch->next() ) {
 481     ModifyRecordWithTemplate( $template_id, $record );
 482   }
 483 }
 484
 485 =head2
 486   ModifyRecordWithTemplate
 487
 488   ModifyRecordWithTemplate( $template_id, $record )
 489
 490   Accepts a MARC::Record object ( $record ) and modifies
 491   it based on the actions for the given $template_id
 492 =cut
 493
 494 sub ModifyRecordWithTemplate {
 495     my ( $template_id, $record ) = @_;
 496     warn( "C4::MarcModificationTemplates::ModifyRecordWithTemplate( $template_id, $record )" ) if DEBUG;
 497     warn( "Unmodified Record:\n" . $record->as_formatted() ) if DEBUG >= 10;
 498
 499     my $current_date = DateTime->now()->ymd();
 500     my $branchcode = '';
 501     $branchcode = C4::Context->userenv->{branch} if C4::Context->userenv;
 502
 503     my @actions = GetModificationTemplateActions( $template_id );
 504
 505     foreach my $a ( @actions ) {
 506         my $action = $a->{'action'};
 507         my $field_number = $a->{'field_number'} // 1;
 508         my $from_field = $a->{'from_field'};
 509         my $from_subfield = $a->{'from_subfield'};
 510         my $field_value = $a->{'field_value'};
 511         my $to_field = $a->{'to_field'};
 512         my $to_subfield = $a->{'to_subfield'};
 513         my $to_regex_search = $a->{'to_regex_search'};
 514         my $to_regex_replace = $a->{'to_regex_replace'};
 515         my $to_regex_modifiers = $a->{'to_regex_modifiers'};
 516         my $conditional = $a->{'conditional'};
 517         my $conditional_field = $a->{'conditional_field'};
 518         my $conditional_subfield = $a->{'conditional_subfield'};
 519         my $conditional_comparison = $a->{'conditional_comparison'};
 520         my $conditional_value = $a->{'conditional_value'};
 521         my $conditional_regex = $a->{'conditional_regex'};
 522
 523         if ( $field_value ) {
 524             $field_value =~ s/__CURRENTDATE__/$current_date/g;
 525             $field_value =~ s/__BRANCHCODE__/$branchcode/g;
 526         }
 527
 528         my $do = 1;
 529         my $field_numbers = [];
 530         if ( $conditional ) {
 531             if ( $conditional_comparison eq 'exists' ) {
 532                 $field_numbers = field_exists({
 533                         record => $record,
 534                         field => $conditional_field,
 535                         subfield => $conditional_subfield,
 536                     });
 537                 $do = $conditional eq 'if'
 538                     ? @$field_numbers
 539                     : not @$field_numbers;
 540             }
 541             elsif ( $conditional_comparison eq 'not_exists' ) {
 542                 $field_numbers = field_exists({
 543                         record => $record,
 544                         field => $conditional_field,
 545                         subfield => $conditional_subfield
 546                     });
 547                 $do = $conditional eq 'if'
 548                     ? not @$field_numbers
 549                     : @$field_numbers;
 550             }
 551             elsif ( $conditional_comparison eq 'equals' ) {
 552                 $field_numbers = field_equals({
 553                     record => $record,
 554                     value => $conditional_value,
 555                     field => $conditional_field,
 556                     subfield => $conditional_subfield,
 557                     is_regex => $conditional_regex,
 558                 });
 559                 $do = $conditional eq 'if'
 560                     ? @$field_numbers
 561                     : not @$field_numbers;
 562             }
 563             elsif ( $conditional_comparison eq 'not_equals' ) {
 564                 $field_numbers = field_equals({
 565                     record => $record,
 566                     value => $conditional_value,
 567                     field => $conditional_field,
 568                     subfield => $conditional_subfield,
 569                     is_regex => $conditional_regex,
 570                 });
 571                 $do = $conditional eq 'if'
 572                     ? not @$field_numbers
 573                     : @$field_numbers;
 574             }
 575         }
 576
 577         if ( $do ) {
 578
 579             # field_number == 0 if all field need to be updated
 580             # or 1 if only the first field need to be updated
 581
 582             # A condition has been given
 583             if ( @$field_numbers > 0 ) {
 584                 if ( $field_number == 1 ) {
 585                     # We want only the first matching
 586                     $field_numbers = [ $field_numbers->[0] ];
 587                 }
 588             }
 589             # There was no condition
 590             else {
 591                 if ( $field_number == 1 ) {
 592                     # We want to process the first field
 593                     $field_numbers = [ 1 ];
 594                 } elsif ( $to_field and $from_field ne $to_field ) {
 595                     # If the from and to fields are not the same, we only process the first field.
 596                     $field_numbers = [ 1 ];
 597                 }
 598             }
 599
 600             if ( $action eq 'copy_field' ) {
 601                 copy_field({
 602                     record => $record,
 603                     from_field => $from_field,
 604                     from_subfield => $from_subfield,
 605                     to_field => $to_field,
 606                     to_subfield => $to_subfield,
 607                     regex => {
 608                         search => $to_regex_search,
 609                         replace => $to_regex_replace,
 610                         modifiers => $to_regex_modifiers
 611                     },
 612                     field_numbers => $field_numbers,
 613                 });
 614             }
 615             elsif ( $action eq 'update_field' ) {
 616                 update_field({
 617                     record => $record,
 618                     field => $from_field,
 619                     subfield => $from_subfield,
 620                     values => [ $field_value ],
 621                     field_numbers => $field_numbers,
 622                 });
 623             }
 624             elsif ( $action eq 'move_field' ) {
 625                 move_field({
 626                     record => $record,
 627                     from_field => $from_field,
 628                     from_subfield => $from_subfield,
 629                     to_field => $to_field,
 630                     to_subfield => $to_subfield,
 631                     regex => {
 632                         search => $to_regex_search,
 633                         replace => $to_regex_replace,
 634                         modifiers => $to_regex_modifiers
 635                     },
 636                     field_numbers => $field_numbers,
 637                 });
 638             }
 639             elsif ( $action eq 'delete_field' ) {
 640                 delete_field({
 641                     record => $record,
 642                     field => $from_field,
 643                     subfield => $from_subfield,
 644                     field_numbers => $field_numbers,
 645                 });
 646             }
 647         }
 648
 649         warn( $record->as_formatted() ) if DEBUG >= 10;
 650     }
 651
 652     return;
 653 }
 654 1;
 655 __END__
 656
 657 =head1 AUTHOR
 658
 659 Kyle M Hall
 660
 661 =cut