Open-ILS/src/perlmods/OpenILS/Utils/Fieldmapper.pm

   1 package Fieldmapper;
   2 use JSON;
   3 use Data::Dumper;
   4 use base 'OpenSRF::Application';
   5
   6 use OpenSRF::Utils::Logger;
   7 my $log = 'OpenSRF::Utils::Logger';
   8
   9 use OpenILS::Application::Storage::CDBI;
  10 use OpenILS::Application::Storage::CDBI::actor;
  11 use OpenILS::Application::Storage::CDBI::action;
  12 use OpenILS::Application::Storage::CDBI::asset;
  13 use OpenILS::Application::Storage::CDBI::biblio;
  14 use OpenILS::Application::Storage::CDBI::config;
  15 use OpenILS::Application::Storage::CDBI::metabib;
  16 use OpenILS::Application::Storage::CDBI::money;
  17
  18 use vars qw/$fieldmap $VERSION/;
  19
  20 _init();
  21
  22 sub publish_fieldmapper {
  23         my ($self,$client,$class) = @_;
  24
  25         return $fieldmap unless (defined $class);
  26         return undef unless (exists($$fieldmap{$class}));
  27         return {$class => $$fieldmap{$class}};
  28 }
  29 __PACKAGE__->register_method(
  30         api_name        => 'opensrf.open-ils.system.fieldmapper',
  31         api_level       => 1,
  32         method          => 'publish_fieldmapper',
  33 );
  34
  35 #
  36 # To dump the Javascript version of the fieldmapper struct use the command:
  37 #
  38 #       PERL5LIB=~/cvs/ILS/OpenSRF/src/perlmods/:~/cvs/ILS/Open-ILS/src/perlmods/ GEN_JS=1 perl -MOpenILS::Utils::Fieldmapper -e 'print "\n";'
  39 #
  40 # ... adjusted for your CVS sandbox, of course.
  41 #
  42
  43 sub classes {
  44         return () unless (defined $fieldmap);
  45         return keys %$fieldmap;
  46 }
  47
  48 sub _init {
  49         return if (defined $fieldmap);
  50
  51         $fieldmap =
  52         {
  53                 'Fieldmapper::action::survey'                   => { hint               => 'asv',
  54                                                                      proto_fields       => { questions  => 1,
  55                                                                                              responses  => 1 } },
  56                 'Fieldmapper::action::survey_question'          => { hint               => 'asvq',
  57                                                                      proto_fields       => { answers    => 1,
  58                                                                                              responses  => 1 } },
  59                 'Fieldmapper::action::survey_answer'            => { hint               => 'asva',
  60                                                                      proto_fields       => { responses => 1 } },
  61                 'Fieldmapper::action::survey_response'          => { hint               => 'asvr'  },
  62                 'Fieldmapper::action::circulation'              => { hint               => 'ac'    },
  63                 'Fieldmapper::actor::user'                      => { hint => 'au'    },
  64                 'Fieldmapper::actor::stat_cat'                  => { hint               => 'asc',
  65                                                                      proto_fields       => { entries => 1 } },
  66                 'Fieldmapper::actor::stat_cat_entry'            => { hint => 'asce'    },
  67                 'Fieldmapper::actor::stat_cat_entry_user_map'   => { hint => 'ascecm'  },
  68                 'Fieldmapper::actor::org_unit'                  => { hint               => 'aou',
  69                                                                      proto_fields       => { children => 1 } },
  70                 'Fieldmapper::actor::org_unit_type'             => { hint               => 'aout',
  71                                                                      proto_fields       => { children => 1 } },
  72
  73                 'Fieldmapper::biblio::record_node'              => { hint               => 'brn',
  74                                                                      virtual            => 1,
  75                                                                      proto_fields       => { children           => 1,
  76                                                                                              id                 => 1,
  77                                                                                              owner_doc          => 1,
  78                                                                                              intra_doc_id       => 1,
  79                                                                                              parent_node        => 1,
  80                                                                                              node_type          => 1,
  81                                                                                              namepsace_uri      => 1,
  82                                                                                              name               => 1,
  83                                                                                              value              => 1,
  84                                                                                            } },
  85                 'Fieldmapper::biblio::record_entry'             => { hint               => 'bre',
  86                                                                      proto_fields       => { call_numbers => 1 } },
  87                 'Fieldmapper::biblio::record_marc'              => { hint => 'brx'  },
  88
  89                 'Fieldmapper::config::identification_type'      => { hint => 'cit'  },
  90                 'Fieldmapper::config::bib_source'               => { hint => 'cbs'  },
  91                 'Fieldmapper::config::metabib_field'            => { hint => 'cmf'  },
  92
  93                 'Fieldmapper::metabib::metarecord'              => { hint => 'mmr'  },
  94                 'Fieldmapper::metabib::title_field_entry'       => { hint => 'mtfe' },
  95                 'Fieldmapper::metabib::author_field_entry'      => { hint => 'mafe' },
  96                 'Fieldmapper::metabib::subject_field_entry'     => { hint => 'msfe' },
  97                 'Fieldmapper::metabib::keyword_field_entry'     => { hint => 'mkfe' },
  98                 'Fieldmapper::metabib::full_rec'                => { hint => 'mfr'  },
  99                 'Fieldmapper::metabib::record_descriptor'       => { hint => 'mrd'  },
 100                 'Fieldmapper::metabib::metarecord_source_map'   => { hint => 'mmrsm'},
 101
 102                 'Fieldmapper::asset::copy'                      => { hint               => 'acp',
 103                                                                      proto_fields       => { stat_cat_entries => 1 } },
 104                 'Fieldmapper::asset::stat_cat'                  => { hint               => 'asc',
 105                                                                      proto_fields       => { entries => 1 } },
 106                 'Fieldmapper::asset::stat_cat_entry'            => { hint => 'asce'    },
 107                 'Fieldmapper::asset::stat_cat_entry_copy_map'   => { hint => 'ascecm'  },
 108                 'Fieldmapper::asset::copy_note'                 => { hint => 'acpn'    },
 109                 'Fieldmapper::asset::call_number'               => { hint               => 'acn',
 110                                                                      proto_fields       => { copies => 1 } },
 111                 'Fieldmapper::asset::call_number_note'          => { hint => 'acnn'    },
 112         };
 113
 114         #-------------------------------------------------------------------------------
 115         # Now comes the evil!  Generate classes
 116
 117         for my $pkg ( keys %$fieldmap ) {
 118                 (my $cdbi = $pkg) =~ s/^Fieldmapper:://o;
 119
 120                 eval <<"                PERL";
 121                         package $pkg;
 122                         use base 'Fieldmapper';
 123                 PERL
 124
 125                 $$fieldmap{$pkg}{cdbi} = $cdbi;
 126
 127                 my $pos = 0;
 128                 for my $vfield ( qw/isnew ischanged isdeleted/ ) {
 129                         $$fieldmap{$pkg}{fields}{$vfield} = { position => $pos, virtual => 1 };
 130                         $pos++;
 131                 }
 132
 133                 if (exists $$fieldmap{$pkg}{proto_fields}) {
 134                         for my $pfield ( keys %{ $$fieldmap{$pkg}{proto_fields} } ) {
 135                                 $$fieldmap{$pkg}{fields}{$pfield} = { position => $pos, virtual => $$fieldmap{$pkg}{proto_fields}{$pfield} };
 136                                 $pos++;
 137                         }
 138                 }
 139
 140                 unless ( $$fieldmap{$pkg}{virtual} ) {
 141                         for my $col ( $cdbi->columns('All') ) {
 142                                 $$fieldmap{$pkg}{fields}{$col} = { position => $pos, virtual => 0 };
 143                                 $pos++;
 144                         }
 145                 }
 146
 147                 JSON->register_class_hint(
 148                         hint => $pkg->json_hint,
 149                         name => $pkg,
 150                         type => 'array',
 151                 );
 152
 153         }
 154 }
 155
 156 sub new {
 157         my $self = shift;
 158         my $value = shift;
 159         $value = [] unless (defined $value);
 160         return bless $value => $self->class_name;
 161 }
 162
 163 sub DESTROY {}
 164
 165 sub AUTOLOAD {
 166         my $obj = shift;
 167         my $value = shift;
 168         (my $field = $AUTOLOAD) =~ s/^.*://o;
 169         my $class_name = $obj->class_name;
 170
 171         my $pos = $$fieldmap{$class_name}{fields}{$field}{position};
 172
 173         if ($field =~ /^clear_/o) {
 174                 {       no strict 'subs';
 175                         *{$obj->class_name."::$field"} = sub {
 176                                 my $self = shift;
 177                                 $self->[$pos] = undef;
 178                                 return 1;
 179                         };
 180                 }
 181                 return $obj->$field();
 182         }
 183
 184         die "No field by the name $field in $class_name!"
 185                 unless (exists $$fieldmap{$class_name}{fields}{$field});
 186
 187
 188         {       no strict 'subs';
 189                 *{$obj->class_name."::$field"} = sub {
 190                         my $self = shift;
 191                         my $new_val = shift;
 192                         $self->[$pos] = $new_val if (defined $new_val);
 193                         return $self->[$pos];
 194                 };
 195         }
 196         return $obj->$field($value);
 197 }
 198
 199 sub class_name {
 200         my $class_name = shift;
 201         return ref($class_name) || $class_name;
 202 }
 203
 204 sub real_fields {
 205         my $self = shift;
 206         my $class_name = $self->class_name;
 207         my $fields = $$fieldmap{$class_name}{fields};
 208
 209         my @f = grep {
 210                         !$$fields{$_}{virtual}
 211                 } sort {$$fields{$a}{position} <=> $$fields{$b}{position}} keys %$fields;
 212
 213         return @f;
 214 }
 215
 216 sub api_level {
 217         my $self = shift;
 218         return $fieldmap->{$self->class_name}->{api_level};
 219 }
 220
 221 sub json_hint {
 222         my $self = shift;
 223         return $fieldmap->{$self->class_name}->{hint};
 224 }
 225
 226
 227 1;