opac/svc/report

   1 #!/usr/bin/perl
   2
   3 # This file is part of Koha.
   4 #
   5 # Copyright (C) 2011  Chris Cormack <chris@bigballofwax.co.nz>
   6 # Copyright (C) 2013  Mark Tompsett
   7 # Updated 2013 by Chris Cormack <chris@bigballofwax.co.nz>
   8 #
   9 # This file is part of Koha.
  10 #
  11 # Koha is free software; you can redistribute it and/or modify it under the
  12 # terms of the GNU General Public License as published by the Free Software
  13 # Foundation; either version 3 of the License, or (at your option) any later
  14 # version.
  15 #
  16 # Koha is distributed in the hope that it will be useful, but
  17 # WITHOUT ANY WARRANTY; without even the implied warranty of
  18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  19 # GNU General Public License for more details.
  20 #
  21 # You should have received a copy of the GNU General Public License
  22 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  23
  24 use Modern::Perl;
  25
  26 use C4::Reports::Guided;
  27 use JSON;
  28 use CGI qw ( -utf8 );
  29
  30 use Koha::Caches;
  31
  32 my $query       = CGI->new();
  33 my $report_id   = $query->param('id');
  34 my $report_name = $query->param('name');
  35 my $report_annotation = $query->param('annotated');
  36
  37 my $report_rec = get_saved_report( $report_name ? { 'name' => $report_name } : { 'id' => $report_id } );
  38 if (!$report_rec) { die "There is no such report.\n"; }
  39
  40 die "Sorry this report is not public\n" unless $report_rec->{public};
  41
  42 my @sql_params  = $query->param('sql_params');
  43
  44 my $cache = Koha::Caches->get_instance();
  45 my $cache_active = $cache->is_cache_active;
  46 my ($cache_key, $json_text);
  47 if ($cache_active) {
  48     $cache_key =
  49         "opac:report:"
  50       . ( $report_name ? "name:$report_name" : "id:$report_id" )
  51       . join( '-', @sql_params );
  52     $json_text = $cache->get_from_cache($cache_key);
  53 }
  54
  55 unless ($json_text) {
  56     my $offset = 0;
  57     my $limit = C4::Context->preference("SvcMaxReportRows") || 10;
  58     my $sql = $report_rec->{savedsql};
  59
  60     # convert SQL parameters to placeholders
  61     $sql =~ s/(<<.*?>>)/\?/g;
  62
  63     my ( $sth, $errors ) =
  64       execute_query( $sql, $offset, $limit, \@sql_params, $report_id );
  65     if ($sth) {
  66         my $lines;
  67         if ($report_annotation) {
  68             $lines = $sth->fetchall_arrayref({});
  69         }
  70         else {
  71             $lines = $sth->fetchall_arrayref;
  72         }
  73         $json_text = encode_json($lines);
  74
  75         if ($cache_active) {
  76             $cache->set_in_cache( $cache_key, $json_text,
  77                 { expiry => $report_rec->{cache_expiry} } );
  78         }
  79     }
  80     else {
  81         $json_text = encode_json($errors);
  82     }
  83 }
  84
  85 print $query->header(
  86     -charset    => 'UTF-8',
  87     -type       => 'application/json'
  88 );
  89 print $json_text;