reports/borrowers_stats.pl

   1 #!/usr/bin/perl
   2
   3 # Copyright 2000-2002 Katipo Communications
   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 use Modern::Perl;
  21 use CGI qw ( -utf8 );
  22 use List::MoreUtils qw/uniq/;
  23
  24 use C4::Auth;
  25 use C4::Context;
  26 use C4::Koha;
  27 use C4::Acquisition;
  28 use C4::Output;
  29 use C4::Reports;
  30 use C4::Circulation;
  31 use C4::Members::AttributeTypes;
  32
  33 use Koha::AuthorisedValues;
  34 use Koha::DateUtils;
  35 use Koha::Libraries;
  36 use Koha::Patron::Categories;
  37
  38 use Date::Calc qw(
  39   Today
  40   Add_Delta_YM
  41   );
  42
  43 =head1 NAME
  44
  45 plugin that shows a stats on borrowers
  46
  47 =head1 DESCRIPTION
  48
  49 =cut
  50
  51 my $input = new CGI;
  52 my $do_it=$input->param('do_it');
  53 my $fullreportname = "reports/borrowers_stats.tt";
  54 my $line = $input->param("Line");
  55 my $column = $input->param("Column");
  56 my @filters = $input->multi_param("Filter");
  57 $filters[3] = eval { output_pref( { dt => dt_from_string( $filters[3]), dateonly => 1, dateformat => 'iso' } ); }
  58     if ( $filters[3] );
  59 $filters[4] = eval { output_pref ({ dt => dt_from_string( $filters[4]), dateonly => 1, dateformat => 'iso' } ); }
  60     if ( $filters[4] );
  61 my $digits = $input->param("digits");
  62 our $period = $input->param("period");
  63 my $borstat = $input->param("status");
  64 my $borstat1 = $input->param("activity");
  65 my $output = $input->param("output");
  66 my $basename = $input->param("basename");
  67 our $sep     = $input->param("sep");
  68 $sep = "\t" if ($sep and $sep eq 'tabulation');
  69
  70 my ($template, $borrowernumber, $cookie)
  71         = get_template_and_user({template_name => $fullreportname,
  72                                 query => $input,
  73                                 type => "intranet",
  74                                 authnotrequired => 0,
  75                                 flagsrequired => {reports => '*'},
  76                                 debug => 1,
  77                                 });
  78 $template->param(do_it => $do_it);
  79 if ($do_it) {
  80         my $attributes;
  81         if (C4::Context->preference('ExtendedPatronAttributes')) {
  82             $attributes = parse_extended_patron_attributes($input);
  83         }
  84         my $results = calculate($line, $column, $digits, $borstat,$borstat1 ,\@filters, $attributes);
  85         if ($output eq "screen"){
  86                 $template->param(mainloop => $results);
  87                 output_html_with_http_headers $input, $cookie, $template->output;
  88         } else {
  89                 print $input->header(-type => 'application/vnd.sun.xml.calc',
  90                          -encoding => 'utf-8',
  91                              -name => "$basename.csv",
  92                        -attachment => "$basename.csv");
  93                 my $cols = @$results[0]->{loopcol};
  94                 my $lines = @$results[0]->{looprow};
  95                 print @$results[0]->{line} ."/". @$results[0]->{column} .$sep;
  96                 foreach my $col ( @$cols ) {
  97                         print $col->{coltitle}.$sep;
  98                 }
  99                 print "Total\n";
 100                 foreach my $line ( @$lines ) {
 101                         my $x = $line->{loopcell};
 102                         print $line->{rowtitle}.$sep;
 103                         foreach my $cell (@$x) {
 104                                 print $cell->{value}.$sep;
 105                         }
 106                         print $line->{totalrow};
 107                         print "\n";
 108                 }
 109                 print "TOTAL";
 110                 $cols = @$results[0]->{loopfooter};
 111                 foreach my $col ( @$cols ) {
 112                         print $sep.$col->{totalcol};
 113                 }
 114                 print $sep.@$results[0]->{total};
 115         }
 116         exit;   # exit after do_it, regardless
 117 } else {
 118         my $dbh = C4::Context->dbh;
 119         my $req;
 120     my $patron_categories = Koha::Patron::Categories->search({}, {order_by => ['description']});
 121     $template->param( patron_categories => $patron_categories );
 122         $req = $dbh->prepare("SELECT DISTINCTROW zipcode FROM borrowers WHERE zipcode IS NOT NULL AND zipcode <> '' ORDER BY zipcode");
 123         $req->execute;
 124         $template->param(   ZIP_LOOP => $req->fetchall_arrayref({}));
 125         $req = $dbh->prepare("SELECT authorised_value,lib FROM authorised_values WHERE category='Bsort1' ORDER BY lib");
 126         $req->execute;
 127         $template->param( SORT1_LOOP => $req->fetchall_arrayref({}));
 128         $req = $dbh->prepare("SELECT DISTINCTROW sort2 AS value FROM borrowers WHERE sort2 IS NOT NULL AND sort2 <> '' ORDER BY sort2 LIMIT 200");
 129                 # More than 200 items in a dropdown is not going to be useful anyway, and w/ 50,000 patrons we can destory DB performance.
 130         $req->execute;
 131         $template->param( SORT2_LOOP => $req->fetchall_arrayref({}));
 132
 133     my $CGIextChoice = ( 'CSV' ); # FIXME translation
 134         my $CGIsepChoice=GetDelimiterChoices;
 135         $template->param(
 136                 CGIextChoice => $CGIextChoice,
 137                 CGIsepChoice => $CGIsepChoice,
 138     );
 139     if (C4::Context->preference('ExtendedPatronAttributes')) {
 140         $template->param(ExtendedPatronAttributes => 1);
 141         patron_attributes_form($template);
 142     }
 143 }
 144 output_html_with_http_headers $input, $cookie, $template->output;
 145
 146 sub calculate {
 147         my ($line, $column, $digits, $status, $activity, $filters, $attr_filters) = @_;
 148
 149         my @mainloop;
 150         my @loopfooter;
 151         my @loopcol;
 152         my @loopline;
 153         my @looprow;
 154         my %globalline;
 155         my $grantotal =0;
 156 # extract parameters
 157         my $dbh = C4::Context->dbh;
 158
 159     # check parameters
 160     my @valid_names = qw(categorycode zipcode branchcode sex sort1 sort2);
 161     my @attribute_types = C4::Members::AttributeTypes::GetAttributeTypes;
 162     if ($line =~ /^patron_attr\.(.*)/) {
 163         my $attribute_type = $1;
 164         return unless (grep {$attribute_type eq $_->{code}} @attribute_types);
 165     } else {
 166         return unless (grep /^$line$/, @valid_names);
 167     }
 168     if ($column =~ /^patron_attr\.(.*)/) {
 169         my $attribute_type = $1;
 170         return unless (grep {$attribute_type eq $_->{code}} @attribute_types);
 171     } else {
 172         return unless (grep /^$column$/, @valid_names);
 173     }
 174     return if ($digits and $digits !~ /^\d+$/);
 175     return if ($status and (grep /^$status$/, qw(debarred gonenoaddress lost)) == 0);
 176     return if ($activity and (grep /^$activity$/, qw(active nonactive)) == 0);
 177
 178     # Filters
 179     my $linefilter;
 180     if    ( $line =~ /categorycode/ ) { $linefilter = @$filters[0]; }
 181     elsif ( $line =~ /zipcode/ )      { $linefilter = @$filters[1]; }
 182     elsif ( $line =~ /branchcode/ )   { $linefilter = @$filters[2]; }
 183     elsif ( $line =~ /sex/ )          { $linefilter = @$filters[5]; }
 184     elsif ( $line =~ /sort1/ )        { $linefilter = @$filters[6]; }
 185     elsif ( $line =~ /sort2/ )        { $linefilter = @$filters[7]; }
 186     elsif ( $line =~ /^patron_attr\.(.*)$/ ) { $linefilter = $attr_filters->{$1}; }
 187     else  { $linefilter = ''; }
 188
 189     my $colfilter;
 190     if    ( $column =~ /categorycode/ ) { $colfilter = @$filters[0]; }
 191     elsif ( $column =~ /zipcode/ )      { $colfilter = @$filters[1]; }
 192     elsif ( $column =~ /branchcode/)    { $colfilter = @$filters[2]; }
 193     elsif ( $column =~ /sex/)           { $colfilter = @$filters[5]; }
 194     elsif ( $column =~ /sort1/)         { $colfilter = @$filters[6]; }
 195     elsif ( $column =~ /sort2/)         { $colfilter = @$filters[7]; }
 196     elsif ( $column =~ /^patron_attr\.(.*)$/) { $colfilter = $attr_filters->{$1}; }
 197     else  { $colfilter = ''; }
 198
 199     my @loopfilter;
 200     foreach my $i (0 .. scalar @$filters) {
 201         my %cell;
 202         if ( @$filters[$i] ) {
 203             if ($i == 3 or $i == 4) {
 204                 $cell{filter} = eval { output_pref( { dt => dt_from_string( @$filters[$i] ), dateonly => 1 }); }
 205                     if ( @$filters[$i] );
 206             } else {
 207                 $cell{filter} = @$filters[$i];
 208             }
 209
 210             if    ( $i == 0)  { $cell{crit} = "Cat code"; }
 211             elsif ( $i == 1 ) { $cell{crit} = "ZIP/Postal code"; }
 212             elsif ( $i == 2 ) { $cell{crit} = "Branch code"; }
 213             elsif ( $i == 3 ||
 214                     $i == 4 ) { $cell{crit} = "Date of birth"; }
 215             elsif ( $i == 5 ) { $cell{crit} = "Sex"; }
 216             elsif ( $i == 6 ) { $cell{crit} = "Sort1"; }
 217             elsif ( $i == 7 ) { $cell{crit} = "Sort2"; }
 218             else { $cell{crit} = "Unknown"; }
 219
 220             push @loopfilter, \%cell;
 221         }
 222     }
 223     foreach my $type (keys %$attr_filters) {
 224         if($attr_filters->{$type}) {
 225             push @loopfilter, {
 226                 crit => "Attribute $type",
 227                 filter => $attr_filters->{$type}
 228             }
 229         }
 230     }
 231
 232     my @branchcodes = map { $_->branchcode } Koha::Libraries->search;
 233         ($status  ) and push @loopfilter,{crit=>"Status",  filter=>$status  };
 234         ($activity) and push @loopfilter,{crit=>"Activity",filter=>$activity};
 235     push @loopfilter,{debug=>1, crit=>"Branches",filter=>join(" ", sort @branchcodes)};
 236         push @loopfilter,{debug=>1, crit=>"(line, column)", filter=>"($line,$column)"};
 237 # year of activity
 238         my ( $period_year, $period_month, $period_day )=Add_Delta_YM( Today(),-$period, 0);
 239         my $newperioddate=$period_year."-".$period_month."-".$period_day;
 240 # 1st, loop rows.
 241         my $linefield;
 242
 243     my $line_attribute_type;
 244     if ($line  =~/^patron_attr\.(.*)$/) {
 245         $line_attribute_type = $1;
 246         $line = 'borrower_attributes.attribute';
 247     }
 248
 249     if (($line =~/zipcode/) and ($digits)) {
 250         $linefield = "left($line,$digits)";
 251     } else {
 252         $linefield = $line;
 253     }
 254     my $patron_categories = Koha::Patron::Categories->search({}, {order_by => ['categorycode']});
 255     push @loopfilter,
 256         {
 257             debug  => 1,
 258             crit   => "Patron category",
 259             filter => join( ", ", map { $_->categorycode . ' (' . ( $_->description || 'NO_DESCRIPTION' ) . ')' } $patron_categories->as_list ),
 260         };
 261
 262     my $strsth;
 263     my @strparams; # bind parameters for the query
 264     if ($line_attribute_type) {
 265         $strsth = "SELECT distinct attribute FROM borrower_attributes
 266             WHERE attribute IS NOT NULL AND code=?";
 267         push @strparams, $line_attribute_type;
 268     } else {
 269         $strsth = "SELECT distinctrow $linefield FROM borrowers
 270             WHERE $line IS NOT NULL ";
 271     }
 272
 273         $linefilter =~ s/\*/%/g;
 274         if ( $linefilter ) {
 275                 $strsth .= " AND $linefield LIKE ? " ;
 276                 push @strparams, $linefilter;
 277         }
 278         $strsth .= " AND $status='1' " if ($status);
 279     $strsth .=" order by $linefield";
 280
 281         push @loopfilter, {sql=>1, crit=>"Query", filter=>$strsth};
 282         my $sth = $dbh->prepare($strsth);
 283     $sth->execute(@strparams);
 284         while (my ($celvalue) = $sth->fetchrow) {
 285                 my %cell;
 286                 if ($celvalue) {
 287                         $cell{rowtitle} = $celvalue;
 288             $cell{rowtitle_display} = ($patron_categories->find($celvalue)->description || "$celvalue\*") if ($line eq 'categorycode');
 289                 }
 290                 $cell{totalrow} = 0;
 291                 push @loopline, \%cell;
 292         }
 293
 294 # 2nd, loop cols.
 295         my $colfield;
 296
 297     my $column_attribute_type;
 298     if ($column  =~/^patron_attr.(.*)$/) {
 299         $column_attribute_type = $1;
 300         $column = 'borrower_attributes.attribute';
 301     }
 302
 303     if (($column =~/zipcode/) and ($digits)) {
 304         $colfield = "left($column,$digits)";
 305     } else {
 306         $colfield = $column;
 307     }
 308
 309     my $strsth2;
 310     my @strparams2; # bind parameters for the query
 311     if ($column_attribute_type) {
 312         $strsth2 = "SELECT DISTINCT attribute FROM borrower_attributes
 313             WHERE attribute IS NOT NULL AND code=?";
 314         push @strparams2, $column_attribute_type;
 315     } else {
 316         $strsth2 = "SELECT DISTINCTROW $colfield FROM borrowers
 317             WHERE $column IS NOT NULL";
 318     }
 319
 320         if ($colfilter) {
 321                 $colfilter =~ s/\*/%/g;
 322                 $strsth2 .= " AND $colfield LIKE ? ";
 323         push @strparams2, $colfield;
 324         }
 325         $strsth2 .= " AND $status='1' " if ($status);
 326
 327     $strsth2 .= " order by $colfield";
 328         push @loopfilter, {sql=>1, crit=>"Query", filter=>$strsth2};
 329         my $sth2 = $dbh->prepare($strsth2);
 330     $sth2->execute(@strparams2);
 331         while (my ($celvalue) = $sth2->fetchrow) {
 332                 my %cell;
 333              if (defined $celvalue) {
 334                         $cell{coltitle} = $celvalue;
 335                         # $cell{coltitle_display} = ($colfield eq 'branchcode') ? $branches->{$celvalue}->{branchname} : $celvalue;
 336             $cell{coltitle_display} = $patron_categories->find($celvalue)->description if ($column eq 'categorycode');
 337                 }
 338                 push @loopcol, \%cell;
 339         }
 340
 341         my $i=0;
 342         #Initialization of cell values.....
 343         my %table;
 344 #       warn "init table";
 345         foreach my $row (@loopline) {
 346                 foreach my $col ( @loopcol ) {
 347             my $rowtitle = $row->{rowtitle} // '';
 348             my $coltitle = $row->{coltitle} // '';
 349             $table{$rowtitle}->{$coltitle} = 0;
 350                 }
 351         $row->{rowtitle} ||= '';
 352                 $table{$row->{rowtitle}}->{totalrow}=0;
 353                 $table{$row->{rowtitle}}->{rowtitle_display} = $row->{rowtitle_display};
 354         }
 355
 356     # preparing calculation
 357     my $strcalc;
 358     my @calcparams;
 359     $strcalc = "SELECT ";
 360     if ($line_attribute_type) {
 361         $strcalc .= " attribute_$line_attribute_type.attribute AS line_attribute, ";
 362     } else {
 363         $strcalc .= " $linefield, ";
 364     }
 365     if ($column_attribute_type) {
 366         $strcalc .= " attribute_$column_attribute_type.attribute AS column_attribute, ";
 367     } else {
 368         $strcalc .= " $colfield, ";
 369     }
 370
 371     $strcalc .= " COUNT(*) FROM borrowers ";
 372     foreach my $type (keys %$attr_filters) {
 373         if (
 374             ($line_attribute_type and $line_attribute_type eq $type)
 375          or ($column_attribute_type and $column_attribute_type eq $type)
 376          or ($attr_filters->{$type})
 377         ) {
 378             $strcalc .= " LEFT JOIN borrower_attributes AS attribute_$type
 379                 ON (borrowers.borrowernumber = attribute_$type.borrowernumber
 380                     AND attribute_$type.code = " . $dbh->quote($type) . ") ";
 381         }
 382     }
 383     $strcalc .= " WHERE 1 ";
 384
 385         @$filters[0]=~ s/\*/%/g if (@$filters[0]);
 386         $strcalc .= " AND categorycode like '" . @$filters[0] ."'" if ( @$filters[0] );
 387         @$filters[1]=~ s/\*/%/g if (@$filters[1]);
 388         $strcalc .= " AND zipcode like '" . @$filters[1] ."'" if ( @$filters[1] );
 389         @$filters[2]=~ s/\*/%/g if (@$filters[2]);
 390         $strcalc .= " AND branchcode like '" . @$filters[2] ."'" if ( @$filters[2] );
 391         @$filters[3]=~ s/\*/%/g if (@$filters[3]);
 392         $strcalc .= " AND dateofbirth > '" . @$filters[3] ."'" if ( @$filters[3] );
 393         @$filters[4]=~ s/\*/%/g if (@$filters[4]);
 394         $strcalc .= " AND dateofbirth < '" . @$filters[4] ."'" if ( @$filters[4] );
 395     @$filters[5]=~ s/\*/%/g if (@$filters[5]);
 396     $strcalc .= " AND sex like '" . @$filters[5] ."'" if ( @$filters[5] );
 397     @$filters[6]=~ s/\*/%/g if (@$filters[6]);
 398         $strcalc .= " AND sort1 like '" . @$filters[6] ."'" if ( @$filters[6] );
 399         @$filters[7]=~ s/\*/%/g if (@$filters[7]);
 400         $strcalc .= " AND sort2 like '" . @$filters[7] ."'" if ( @$filters[7] );
 401
 402     foreach my $type (keys %$attr_filters) {
 403         if($attr_filters->{$type}) {
 404             my $filter = $attr_filters->{$type};
 405             $filter =~ s/\*/%/g;
 406             $strcalc .= " AND attribute_$type.attribute LIKE '" . $filter . "' ";
 407         }
 408     }
 409         $strcalc .= " AND borrowernumber in (select distinct(borrowernumber) from old_issues where issuedate > '" . $newperioddate . "')" if ($activity eq 'active');
 410         $strcalc .= " AND borrowernumber not in (select distinct(borrowernumber) from old_issues where issuedate > '" . $newperioddate . "')" if ($activity eq 'nonactive');
 411         $strcalc .= " AND $status='1' " if ($status);
 412
 413     $strcalc .= " GROUP BY ";
 414     if ($line_attribute_type) {
 415         $strcalc .= " line_attribute, ";
 416     } else {
 417         $strcalc .= " $linefield, ";
 418     }
 419     if ($column_attribute_type) {
 420         $strcalc .= " column_attribute ";
 421     } else {
 422         $strcalc .= " $colfield ";
 423     }
 424
 425         push @loopfilter, {sql=>1, crit=>"Query", filter=>$strcalc};
 426         my $dbcalc = $dbh->prepare($strcalc);
 427         (scalar(@calcparams)) ? $dbcalc->execute(@calcparams) : $dbcalc->execute();
 428
 429         my $emptycol;
 430         while (my ($row, $col, $value) = $dbcalc->fetchrow) {
 431 #               warn "filling table $row / $col / $value ";
 432                 $emptycol = 1 if (!defined($col));
 433                 $col = "zzEMPTY" if (!defined($col));
 434                 $row = "zzEMPTY" if (!defined($row));
 435
 436                 $table{$row}->{$col}+=$value;
 437                 $table{$row}->{totalrow}+=$value;
 438                 $grantotal += $value;
 439         }
 440
 441         push @loopcol,{coltitle => "NULL"} if ($emptycol);
 442
 443         foreach my $row (sort keys %table) {
 444                 my @loopcell;
 445                 #@loopcol ensures the order for columns is common with column titles
 446                 # and the number matches the number of columns
 447                 foreach my $col ( @loopcol ) {
 448             my $coltitle = $col->{coltitle} // '';
 449             $coltitle = $coltitle eq "NULL" ? "zzEMPTY" : $coltitle;
 450                         my $value =$table{$row}->{$coltitle};
 451                         push @loopcell, {value => $value};
 452                 }
 453                 push @looprow,{
 454                         'rowtitle' => ($row eq "zzEMPTY")?"NULL":$row,
 455                         'rowtitle_display' => $table{$row}->{rowtitle_display} || ($row eq "zzEMPTY" ? "NULL" : $row),
 456                         'loopcell' => \@loopcell,
 457                         'totalrow' => $table{$row}->{totalrow}
 458                 };
 459         }
 460
 461         foreach my $col ( @loopcol ) {
 462                 my $total=0;
 463                 foreach my $row ( @looprow ) {
 464             my $rowtitle = $row->{rowtitle} // '';
 465             $rowtitle = ($rowtitle eq "NULL") ? "zzEMPTY" : $rowtitle;
 466             my $coltitle = $col->{coltitle} // '';
 467             $coltitle = ($coltitle eq "NULL") ? "zzEMPTY" : $coltitle;
 468
 469             $total += $table{$rowtitle}->{$coltitle} || 0;
 470 #                       warn "value added ".$table{$row->{rowtitle}}->{$col->{coltitle}}. "for line ".$row->{rowtitle};
 471                 }
 472 #               warn "summ for column ".$col->{coltitle}."  = ".$total;
 473                 push @loopfooter, {'totalcol' => $total};
 474         }
 475
 476
 477         # the header of the table
 478         $globalline{loopfilter}=\@loopfilter;
 479         # the core of the table
 480         $globalline{looprow} = \@looprow;
 481         $globalline{loopcol} = \@loopcol;
 482 #       # the foot (totals by borrower type)
 483         $globalline{loopfooter} = \@loopfooter;
 484         $globalline{total}= $grantotal;
 485         $globalline{line} = ($line_attribute_type) ? $line_attribute_type : $line;
 486         $globalline{column} = ($column_attribute_type) ? $column_attribute_type : $column;
 487         push @mainloop,\%globalline;
 488         return \@mainloop;
 489 }
 490
 491 sub parse_extended_patron_attributes {
 492     my ($input) = @_;
 493
 494     my @params_names = $input->param;
 495     my %attr;
 496     foreach my $name (@params_names) {
 497         if ($name =~ /^Filter_patron_attr\.(.*)$/) {
 498             my $code = $1;
 499             my $value = $input->param($name);
 500             $attr{$code} = $value;
 501         }
 502     }
 503
 504     return \%attr;
 505 }
 506
 507
 508 sub patron_attributes_form {
 509     my $template = shift;
 510
 511     my @types = C4::Members::AttributeTypes::GetAttributeTypes();
 512
 513     my %items_by_class;
 514     foreach my $type (@types) {
 515         my $attr_type = C4::Members::AttributeTypes->fetch($type->{code});
 516         my $entry = {
 517             class             => $attr_type->class(),
 518             code              => $attr_type->code(),
 519             description       => $attr_type->description(),
 520             repeatable        => $attr_type->repeatable(),
 521             category          => $attr_type->authorised_value_category(),
 522             category_code     => $attr_type->category_code(),
 523         };
 524
 525         my $newentry = { %$entry };
 526         if ($attr_type->authorised_value_category()) {
 527             $newentry->{use_dropdown} = 1;
 528             $newentry->{auth_val_loop} = GetAuthorisedValues(
 529                 $attr_type->authorised_value_category()
 530             );
 531         }
 532         push @{ $items_by_class{ $attr_type->class() } }, $newentry;
 533     }
 534
 535     my @attribute_loop;
 536     foreach my $class ( sort keys %items_by_class ) {
 537         my $av = Koha::AuthorisedValues->search({ category => 'PA_CLASS', authorised_value => $class });
 538         my $lib = $av->count ? $av->next->lib : $class;
 539         push @attribute_loop, {
 540             class => $class,
 541             items => $items_by_class{$class},
 542             lib   => $lib,
 543         };
 544     }
 545
 546     $template->param(patron_attributes => \@attribute_loop);
 547
 548 }