Open-ILS/src/perlmods/OpenILS/Application/Storage/CDBI.pm

   1 package OpenILS::Application::Storage::CDBI;
   2 use base qw/Class::DBI/;
   3 use Class::DBI;
   4 use Class::DBI::AbstractSearch;
   5
   6 use OpenILS::Application::Storage::CDBI::actor;
   7 use OpenILS::Application::Storage::CDBI::action;
   8 use OpenILS::Application::Storage::CDBI::asset;
   9 use OpenILS::Application::Storage::CDBI::authority;
  10 use OpenILS::Application::Storage::CDBI::biblio;
  11 use OpenILS::Application::Storage::CDBI::config;
  12 use OpenILS::Application::Storage::CDBI::metabib;
  13 use OpenILS::Application::Storage::CDBI::money;
  14 use OpenILS::Application::Storage::CDBI::permission;
  15
  16 use JSON;
  17 use OpenSRF::Utils::Logger;
  18 use OpenSRF::EX qw/:try/;
  19
  20 our $VERSION = undef;
  21 my $log = 'OpenSRF::Utils::Logger';
  22
  23 sub child_init {
  24         my $self = shift;
  25
  26         $log->debug("Creating ImaDBI Querys", DEBUG);
  27         __PACKAGE__->set_sql( 'OILSFastSearch', <<"     SQL", 'Main');
  28                 SELECT  %s
  29                   FROM  %s
  30                   WHERE %s = ?
  31         SQL
  32
  33         __PACKAGE__->set_sql( 'OILSFastOrderedSearchLike', <<"  SQL", 'Main');
  34                 SELECT  %s
  35                   FROM  %s
  36                   WHERE %s LIKE ?
  37                   ORDER BY %s
  38         SQL
  39
  40         __PACKAGE__->set_sql( 'OILSFastOrderedSearch', <<"      SQL", 'Main');
  41                 SELECT  %s
  42                   FROM  %s
  43                   WHERE %s = ?
  44                   ORDER BY %s
  45         SQL
  46
  47         $log->debug("Calling Driver child_init", DEBUG);
  48         $self->SUPER::child_init(@_);
  49
  50 }
  51
  52 sub fast_flesh_sth {
  53         my $class = shift;
  54         $class = ref($class) || $class;
  55
  56         my $field = shift;
  57         my $value = shift;
  58         my $order = shift;
  59         my $like = shift;
  60
  61
  62         if (!(defined($order) and ref($order) and ref($order) eq 'HASH')) {
  63                 if (defined($value) and ref($value) and ref($value) eq 'HASH') {
  64                         $order = $value;
  65                         $value = undef;
  66                 } else {
  67                         $order = { order_by => $class->columns('Primary') }
  68                 }
  69         }
  70
  71         unless (defined $value) {
  72                 $value = $field;
  73                 ($field) = $class->columns('Primary');
  74         }
  75
  76         unless (defined $field) {
  77                 ($field) = $class->columns('Primary');
  78         }
  79
  80         unless ($order->{order_by}) {
  81                 $order = { order_by => $class->columns('Primary') }
  82         }
  83
  84         my $fm_class = 'Fieldmapper::'.$class;
  85         my $field_list = join ',', $class->columns('All');
  86
  87         my $sth;
  88         if (!$like) {
  89                 $sth = $class->sql_OILSFastOrderedSearch( $field_list, $class->table, $field, $order->{order_by});
  90         } else {
  91                 $sth = $class->sql_OILSFastOrderedSearchLike( $field_list, $class->table, $field, $order->{order_by});
  92         }
  93         $sth->execute($value);
  94         return $sth;
  95 }
  96
  97 sub fast_flesh {
  98         my $self = shift;
  99         return map $class->construct($_), $self->fast_flesh_sth(@_)->fetchall_hash;
 100 }
 101
 102 sub fast_fieldmapper {
 103         my $self = shift;
 104         my $id = shift;
 105         my $col = shift;
 106         my $like = shift;
 107         my $options = shift;
 108         my $class = ref($self) || $self;
 109         my $fm_class = 'Fieldmapper::'.$class;
 110         my @fms;
 111         $log->debug("fast_fieldmapper() ==> Retrieving $fm_class", INTERNAL);
 112         if ($like < 2) {
 113                 for my $hash ($self->fast_flesh_sth( $col, "$id", { order_by => $col }, $like )->fetchall_hash) {
 114                         my $fm = $fm_class->new;
 115                         for my $field ( $fm_class->real_fields ) {
 116                                 $fm->$field( $$hash{$field} );
 117                         }
 118                         push @fms, $fm;
 119                 }
 120         } else {
 121                 my $search_type = 'search';
 122                 if ($like == 2) {
 123                         $search_type = 'search_fts'
 124                 } elsif ($like == 3) {
 125                         $search_type = 'search_regex'
 126                 }
 127
 128                 for my $obj ($class->$search_type({ $col => $id}, $options)) {
 129                         push @fms, $obj->to_fieldmapper;
 130                 }
 131         }
 132         return @fms;
 133 }
 134
 135 sub retrieve {
 136         my $self = shift;
 137         my $arg = shift;
 138         if (ref($arg) &&
 139                 (UNIVERSAL::isa($arg => 'Fieldmapper') ||
 140                  UNIVERSAL::isa($arg => 'Class::DBI')) ) {
 141                 my ($col) = $self->primary_column;
 142                 $log->debug("Using field $col as the primary key", INTERNAL);
 143                 $arg = $arg->$col;
 144         } elsif (ref $arg) {
 145                 my ($col) = $self->primary_column;
 146                 $log->debug("Using field $col as the primary key", INTERNAL);
 147                 $arg = $arg->{$col};
 148         }
 149
 150         $log->debug("Retrieving $self with $arg", INTERNAL);
 151         my $rec;
 152         try {
 153                 $rec = $self->SUPER::retrieve("$arg");
 154         } catch Error with {
 155                 $log->debug("Could not retrieve $self with $arg! -- ".shift(), DEBUG);
 156                 return undef;
 157         };
 158         return $rec;
 159 }
 160
 161 sub to_fieldmapper {
 162         my $obj = shift;
 163         my $class = ref($obj) || $obj;
 164
 165         my $fm_class = 'Fieldmapper::'.$class;
 166         my $fm = $fm_class->new;
 167
 168         if (ref($obj)) {
 169                 for my $field ( $fm->real_fields ) {
 170                         $fm->$field( $obj->$field );
 171                 }
 172         }
 173
 174         return $fm;
 175 }
 176
 177 sub merge {
 178         my $self = shift;
 179         my $search = shift;
 180         my $arg = shift;
 181
 182         delete $$arg{$_} for (keys %$search);
 183
 184         $log->debug("CDBI->merge: \$search is $search (".ref($search)." : ".join(',',map{"$_ => $$search{$_}"}keys(%$search)).")",DEBUG);
 185         $log->debug("CDBI->merge: \$arg is $arg (".ref($arg)." : ".join(',',map{"$_ => $$arg{$_}"}keys(%$arg)).")",DEBUG);
 186
 187         my @objs = ($self);
 188         @objs = $self->search_where($search) unless (ref $self);
 189
 190         if (@objs == 1) {
 191                 return $objs[0]->update($arg);
 192         } elsif (@objs == 0) {
 193                 return $self->create({%$search,%$arg});
 194         } else {
 195                 throw OpenSRF::EX::WARN ("Non-unique search key for merge.  Perhaps you meant to use remote_update?");
 196         }
 197 }
 198
 199 sub remote_update {
 200         my $self = shift;
 201         my $search = shift;
 202         my $arg = shift;
 203
 204         delete $$arg{$_} for (keys %$search);
 205
 206         $log->debug("CDBI->remote_update: \$search is $search (".ref($search)." : ".join(',',map{"$_ => $$search{$_}"}keys(%$search)).")",DEBUG);
 207         $log->debug("CDBI->remote_update: \$arg is $arg (".ref($arg)." : ".join(',',map{"$_ => $$arg{$_}"}keys(%$arg)).")",DEBUG);
 208
 209 #       my @objs = $self->search_where($search);
 210 #       throw OpenSRF::EX::WARN ("No objects found for remote_update.  Perhaps you meant to use merge?")
 211 #               if (@objs == 0);
 212
 213 #       $_->update($arg) for (@objs);
 214 #       return scalar(@objs);
 215
 216         my @finds = sort keys %$search;
 217         my @sets = sort keys %$arg;
 218
 219         my @find_vals = @$search{@finds};
 220         my @set_vals = @$arg{@sets};
 221
 222         my $sql = 'UPDATE %s SET %s WHERE %s';
 223
 224         my $table = $self->table;
 225         my $set = join(', ', map { "$_=?" } @sets);
 226         my $where = join(', ', map { "$_=?" } @finds);
 227
 228         my $sth = $self->db_Main->prepare(sprintf($sql, $table, $set, $where));
 229         $sth->execute(@set_vals,@find_vals);
 230         return $sth->rows;
 231
 232 }
 233
 234 sub create {
 235         my $self = shift;
 236         my $arg = shift;
 237
 238         $log->debug("CDBI->create: \$arg is $arg (".ref($arg)." : ".JSON->perl2JSON($arg).")",DEBUG);
 239
 240         if (ref($arg) && UNIVERSAL::isa($arg => 'Fieldmapper')) {
 241                 return $self->create_from_fieldmapper($arg,@_);
 242         }
 243
 244         return $self->SUPER::create($arg,@_);
 245 }
 246
 247 sub create_from_fieldmapper {
 248         my $obj = shift;
 249         my $fm = shift;
 250         my @params = @_;
 251
 252         $log->debug("Creating node of type ".ref($fm), DEBUG);
 253
 254         my $class = ref($obj) || $obj;
 255         my ($primary) = $class->columns('Primary');
 256
 257         if (ref($fm) &&UNIVERSAL::isa($fm => 'Fieldmapper')) {
 258                 my %hash = map { defined $fm->$_ ?
 259                                         ($_ => $fm->$_) :
 260                                         ()
 261                                 } grep { $_ ne $primary } $class->columns('All');
 262
 263                 if ($class->find_column( 'last_xact_id' )) {
 264                         my $xact_id = $class->current_xact_id;
 265                         throw Error unless ($xact_id);
 266                         $hash{last_xact_id} = $xact_id;
 267                 }
 268
 269                 return $class->create( \%hash, @params );
 270         } else {
 271                 return undef;
 272         }
 273 }
 274
 275 sub delete {
 276         my $self = shift;
 277         my $arg = shift;
 278         my $orig = $self;
 279
 280         my $class = ref($self) || $self;
 281
 282         $self = $self->retrieve($arg) if (!ref($self));
 283         unless (defined $self) {
 284                 $log->debug("ARG! Couldn't retrieve record ".$arg->id, DEBUG);
 285                 throw OpenSRF::EX::WARN ("ARG! Couldn't retrieve record ");
 286         }
 287
 288         if ($class->find_column( 'last_xact_id' )) {
 289                 my $xact_id = $self->current_xact_id;
 290
 291                 throw Error ("Deleting from $class requires a transaction be established")
 292                         unless ($xact_id);
 293
 294                 throw Error ("The row you are attempting to delete has been changed since you read it")
 295                         unless ( $orig->last_xact_id eq $self->last_xact_id);
 296
 297                 $self->last_xact_id( $class->current_xact_id );
 298                 $self->SUPER::update;
 299         }
 300
 301         $self->SUPER::delete;
 302
 303         return 1;
 304 }
 305
 306 sub debug_object {
 307         my $obj = shift;
 308         my $string = '';
 309
 310         $string .= "Object type:\t".ref($obj)."\n";
 311         $string .= "Object string:\t$obj\n";
 312
 313         if (ref($obj) && ref($obj) =~ /Fieldmapper/o ) {
 314                 $string .= "Object fields:\n";
 315                 for my $col ($obj->real_fields()) {
 316                         $string .= "\t$col\t=>".$obj->$col."\n";
 317                 }
 318         } elsif (ref($obj)) {
 319                 $string .= "Object cols:\n";
 320                 for my $col ($obj->columns('All')) {
 321                         $string .= "\t$col\t=>".$obj->$col."\n";
 322                 }
 323         }
 324
 325         $string .= "\n";
 326
 327         $log->debug($string,DEBUG);
 328 }
 329
 330
 331 sub update {
 332         my $self = shift;
 333         my $arg = shift;
 334
 335         $log->debug("Attempting to update using $arg", DEBUG) if ($arg);
 336
 337         if (ref($arg)) {
 338                 $self = $self->modify_from_fieldmapper($arg);
 339                 $log->debug("Modification of $self seems to have failed....", DEBUG);
 340                 return undef unless (defined $self);
 341         }
 342
 343         $log->debug("Calling Class::DBI->update on modified object $self", DEBUG);
 344
 345         debug_object($self);
 346
 347         return $self->SUPER::update if ($self->is_changed);
 348         return 0;
 349 }
 350
 351 sub modify_from_fieldmapper {
 352         my $obj = shift;
 353         my $fm = shift;
 354         my $orig = $obj;
 355
 356         debug_object($obj);
 357         debug_object($fm);
 358
 359         $log->debug("Modifying object using fieldmapper", DEBUG);
 360
 361         my $class = ref($obj) || $obj;
 362         my ($primary) = $class->columns('Primary');
 363
 364
 365         if (!ref($obj)) {
 366                 $obj = $class->retrieve($fm);
 367                 debug_object($obj);
 368                 unless ($obj) {
 369                         $log->debug("Retrieve of $class using $fm (".$fm->id.") failed! -- ".shift(), ERROR);
 370                         throw OpenSRF::EX::WARN ("No $class with id of ".$fm->id."!!");
 371                 }
 372         }
 373
 374         my %hash;
 375
 376         if (ref($fm) and UNIVERSAL::isa($fm => 'Fieldmapper')) {
 377                 %hash = map { defined $fm->$_ ?
 378                                 ($_ => ''.$fm->$_) :
 379                                 ()
 380                         } grep { $_ ne $primary } $class->columns('All');
 381         } else {
 382                 %hash = %{$fm};
 383         }
 384
 385         my $au = $obj->autoupdate;
 386         $obj->autoupdate(0);
 387
 388         debug_object($obj);
 389
 390         for my $field ( keys %hash ) {
 391                 $obj->$field( $hash{$field} ) if ($obj->$field ne $hash{$field});
 392                 $log->debug("Setting field $field on $obj to $hash{$field}",INTERNAL);
 393         }
 394
 395         if ($class->find_column( 'last_xact_id' ) and $obj->is_changed) {
 396                 my ($xact_id) = OpenILS::Application::Storage->method_lookup('open-ils.storage.transaction.current')->run();
 397                 throw Error ("Updating $class requires a transaction be established")
 398                         unless ($xact_id);
 399                 throw Error ("The row you are attempting to delete has been changed since you read it")
 400                         unless ( $fm->last_xact_id eq $obj->last_xact_id);
 401                 $obj->last_xact_id( $xact_id );
 402         } else {
 403                 $obj->autoupdate($au)
 404         }
 405
 406         return $obj;
 407 }
 408
 409
 410
 411         #-------------------------------------------------------------------------------
 412         actor::user->has_a( home_ou => 'actor::org_unit' );
 413         actor::user->has_a( card => 'actor::card' );
 414         actor::user->has_a( standing => 'config::standing' );
 415         actor::user->has_a( profile => 'actor::profile' );
 416         actor::user->has_a( mailing_address => 'actor::user_address' );
 417         actor::user->has_a( billing_address => 'actor::user_address' );
 418         actor::user->has_a( ident_type => 'config::identification_type' );
 419         actor::user->has_a( ident_type2 => 'config::identification_type' );
 420         actor::user->has_a( net_access_level => 'config::net_access_level' );
 421
 422         actor::user_address->has_a( usr => 'actor::user' );
 423
 424         actor::card->has_a( usr => 'actor::user' );
 425
 426         actor::org_unit->has_a( parent_ou => 'actor::org_unit' );
 427         actor::org_unit->has_a( ou_type => 'actor::org_unit_type' );
 428         #actor::org_unit->has_a( address => 'actor::org_address' );
 429
 430         actor::stat_cat_entry->has_a( stat_cat => 'actor::stat_cat' );
 431         actor::stat_cat->has_many( entries => 'actor::stat_cat_entry' );
 432         actor::stat_cat_entry_user_map->has_a( stat_cat => 'actor::stat_cat' );
 433         actor::stat_cat_entry_user_map->has_a( stat_cat_entry => 'actor::stat_cat_entry' );
 434         actor::stat_cat_entry_user_map->has_a( target_usr => 'actor::user' );
 435
 436         asset::stat_cat_entry->has_a( stat_cat => 'asset::stat_cat' );
 437         asset::stat_cat->has_many( entries => 'asset::stat_cat_entry' );
 438         asset::stat_cat_entry_copy_map->has_a( stat_cat => 'asset::stat_cat' );
 439         asset::stat_cat_entry_copy_map->has_a( stat_cat_entry => 'asset::stat_cat_entry' );
 440         asset::stat_cat_entry_copy_map->has_a( owning_copy => 'asset::copy' );
 441
 442         action::survey_response->has_a( usr => 'actor::user' );
 443         action::survey_response->has_a( survey => 'action::survey' );
 444         action::survey_response->has_a( question => 'action::survey_question' );
 445         action::survey_response->has_a( answer => 'action::survey_answer' );
 446
 447         action::survey_question->has_a( survey => 'action::survey' );
 448
 449         action::survey_answer->has_a( question => 'action::survey' );
 450
 451         asset::copy_note->has_a( owning_copy => 'asset::copy' );
 452
 453         actor::user->has_many( stat_cat_entries => [ 'actor::stat_cat_entry_user_map' => 'stat_cat_entry' ] );
 454         actor::user->has_many( stat_cat_entry_user_maps => 'actor::stat_cat_entry_user_map' );
 455
 456         asset::copy->has_many( stat_cat_entries => [ 'asset::stat_cat_entry_copy_map' => 'stat_cat_entry' ] );
 457         asset::copy->has_many( stat_cat_entry_copy_maps => 'asset::stat_cat_entry_copy_map' );
 458
 459         asset::copy->has_a( call_number => 'asset::call_number' );
 460         asset::copy->has_a( creator => 'actor::user' );
 461         asset::copy->has_a( editor => 'actor::user' );
 462         asset::copy->has_a( status => 'config::copy_status' );
 463         asset::copy->has_a( location => 'asset::copy_location' );
 464         asset::copy->has_a( circ_lib => 'actor::org_unit' );
 465
 466         asset::call_number_note->has_a( call_number => 'asset::call_number' );
 467
 468         asset::call_number->has_a( record => 'biblio::record_entry' );
 469         asset::call_number->has_a( creator => 'actor::user' );
 470         asset::call_number->has_a( editor => 'actor::user' );
 471
 472         authority::record_note->has_a( record => 'authority::record_entry' );
 473         biblio::record_note->has_a( record => 'biblio::record_entry' );
 474
 475         authority::record_entry->has_a( creator => 'actor::user' );
 476         authority::record_entry->has_a( editor => 'actor::user' );
 477         biblio::record_entry->has_a( creator => 'actor::user' );
 478         biblio::record_entry->has_a( editor => 'actor::user' );
 479
 480         metabib::metarecord->has_a( master_record => 'biblio::record_entry' );
 481
 482         authority::record_descriptor->has_a( record => 'authority::record_entry' );
 483         metabib::record_descriptor->has_a( record => 'biblio::record_entry' );
 484
 485         authority::full_rec->has_a( record => 'authority::record_entry' );
 486         metabib::full_rec->has_a( record => 'biblio::record_entry' );
 487
 488         metabib::title_field_entry->has_a( source => 'biblio::record_entry' );
 489         metabib::title_field_entry->has_a( field => 'config::metabib_field' );
 490
 491         metabib::author_field_entry->has_a( source => 'biblio::record_entry' );
 492         metabib::author_field_entry->has_a( field => 'config::metabib_field' );
 493
 494         metabib::subject_field_entry->has_a( source => 'biblio::record_entry' );
 495         metabib::subject_field_entry->has_a( field => 'config::metabib_field' );
 496
 497         metabib::keyword_field_entry->has_a( source => 'biblio::record_entry' );
 498         metabib::keyword_field_entry->has_a( field => 'config::metabib_field' );
 499
 500         metabib::series_field_entry->has_a( source => 'biblio::record_entry' );
 501         metabib::series_field_entry->has_a( field => 'config::metabib_field' );
 502
 503         metabib::metarecord_source_map->has_a( metarecord => 'metabib::metarecord' );
 504         metabib::metarecord_source_map->has_a( source => 'biblio::record_entry' );
 505
 506         action::circulation->has_a( usr => 'actor::user' );
 507         action::circulation->has_a( target_copy => 'asset::copy' );
 508         action::circulation->has_a( circ_lib => 'actor::org_unit' );
 509
 510         money::billable_transaction->has_a( usr => 'actor::user' );
 511
 512
 513         #-------------------------------------------------------------------------------
 514         actor::user->has_many( survey_responses => 'action::survey_response' );
 515         actor::user->has_many( addresses => 'actor::user_address' );
 516         actor::user->has_many( cards => 'actor::card' );
 517
 518         actor::org_unit->has_many( users => 'actor::user' );
 519         actor::profile->has_many( users => 'actor::user' );
 520
 521         action::survey->has_many( questions => 'action::survey_question' );
 522         action::survey->has_many( responses => 'action::survey_response' );
 523
 524         action::survey_question->has_many( answers => 'action::survey_answer' );
 525         action::survey_question->has_many( responses => 'action::survey_response' );
 526
 527         action::survey_answer->has_many( responses => 'action::survey_response' );
 528
 529         asset::copy->has_many( notes => 'asset::copy_note' );
 530         asset::call_number->has_many( copies => 'asset::copy' );
 531         asset::call_number->has_many( notes => 'asset::call_number_note' );
 532
 533         authority::record_entry->has_many( record_descriptor => 'authority::record_descriptor' );
 534         authority::record_entry->has_many( notes => 'authority::record_note' );
 535
 536         biblio::record_entry->has_many( record_descriptor => 'metabib::record_descriptor' );
 537         biblio::record_entry->has_many( notes => 'biblio::record_note' );
 538         biblio::record_entry->has_many( call_numbers => 'asset::call_number' );
 539         biblio::record_entry->has_many( full_record_entries => 'metabib::full_rec' );
 540         biblio::record_entry->has_many( title_field_entries => 'metabib::title_field_entry' );
 541         biblio::record_entry->has_many( author_field_entries => 'metabib::author_field_entry' );
 542         biblio::record_entry->has_many( subject_field_entries => 'metabib::subject_field_entry' );
 543         biblio::record_entry->has_many( keyword_field_entries => 'metabib::keyword_field_entry' );
 544         biblio::record_entry->has_many( series_field_entries => 'metabib::series_field_entry' );
 545
 546         metabib::metarecord->has_many( source_records => [ 'metabib::metarecord_source_map' => 'source'] );
 547
 548         money::billable_transaction->has_many( billings => 'money::billing' );
 549         money::billable_transaction->has_many( payments => 'money::payment' );
 550
 551         money::billing->has_a( xact => 'money::billable_transaction' );
 552         money::payment->has_a( xact => 'money::billable_transaction' );
 553
 554         money::cash_payment->has_a( xact => 'money::billable_transaction' );
 555         money::cash_payment->has_a( accepting_usr => 'actor::user' );
 556
 557         money::check_payment->has_a( xact => 'money::billable_transaction' );
 558         money::check_payment->has_a( accepting_usr => 'actor::user' );
 559
 560         money::credit_card_payment->has_a( xact => 'money::billable_transaction' );
 561         money::credit_card_payment->has_a( accepting_usr => 'actor::user' );
 562
 563         money::forgive_payment->has_a( xact => 'money::billable_transaction' );
 564         money::forgive_payment->has_a( accepting_usr => 'actor::user' );
 565
 566         money::work_payment->has_a( xact => 'money::billable_transaction' );
 567         money::work_payment->has_a( accepting_usr => 'actor::user' );
 568
 569         money::credit_payment->has_a( xact => 'money::billable_transaction' );
 570         money::credit_payment->has_a( accepting_usr => 'actor::user' );
 571
 572         permission::grp_tree->has_a( parent => 'permission::grp_tree' );
 573
 574         permission::grp_perm_map->has_a( grp => 'permission::grp_tree' );
 575         permission::grp_perm_map->has_a(  perm => 'permission::perm_list' );
 576         permission::grp_perm_map->has_a(  depth => 'actor::org_unit_type' );
 577
 578         permission::usr_perm_map->has_a( usr => 'actor::user' );
 579         permission::usr_perm_map->has_a(  perm => 'permission::perm_list' );
 580         permission::usr_perm_map->has_a(  depth => 'actor::org_unit_type' );
 581
 582         permission::usr_grp_map->has_a(  usr => 'actor::user' );
 583         permission::usr_grp_map->has_a(  grp => 'permission::grp_tree' );
 584
 585         action::hold_notification->has_a(  hold => 'action::hold_request' );
 586
 587         action::hold_copy_map->has_a(  hold => 'action::hold_request' );
 588         action::hold_copy_map->has_a(  target_copy => 'asset::copy' );
 589
 590         action::hold_request->has_a(  current_copy => 'asset::copy' );
 591         action::hold_request->has_a(  requestor => 'actor::user' );
 592         action::hold_request->has_a(  usr => 'actor::user' );
 593         action::hold_request->has_a(  pickup_lib => 'actor::org_unit' );
 594
 595         action::hold_request->has_many(  notifications => 'action::hold_notification' );
 596         action::hold_request->has_many(  copy_maps => 'action::hold_copy_map' );
 597
 598         asset::copy->has_many(  hold_maps => 'action::hold_copy_map' );
 599
 600 1;