misc/cronjobs/delete_items.pl

   1 #! /usr/bin/perl
   2
   3 use Getopt::Long;
   4
   5 use Koha::Script -cron;
   6 use C4::Context;
   7 use C4::Items;
   8 use C4::Circulation;
   9 use Modern::Perl;
  10 use Pod::Usage;
  11
  12 my $dbh = C4::Context->dbh();
  13
  14 my $query = {
  15     target_items => q|SELECT itemnumber, biblionumber from items|
  16 };
  17
  18 my $GLOBAL = {
  19       query => $query
  20     , sth   => {}
  21 };
  22
  23 my $OPTIONS = {
  24       where => []
  25     , flags    => {
  26             verbose   => ''
  27           , commit    => ''
  28           , help      => ''
  29           , manual    => ''
  30           , version   => ''
  31       }
  32 };
  33
  34 GetOptions(
  35       'where=s'    => $OPTIONS->{where}
  36     , 'v|verbose'  => sub { $OPTIONS->{flags}->{verbose}   = 1 }
  37     , 'V|version'  => sub { $OPTIONS->{flags}->{version}   = 1 }
  38     , 'h|help'     => sub { $OPTIONS->{flags}->{help}      = 1 }
  39     , 'm|manual'   => sub { $OPTIONS->{flags}->{manual}    = 1 }
  40     , 'c|commit'   => sub { $OPTIONS->{flags}->{commit}    = 1 } # aka DO-EET!
  41 );
  42
  43 my @where = @{ $OPTIONS->{where} };
  44
  45 pod2usage( -verbose => 2 ) if  $OPTIONS->{flags}->{manual};
  46 pod2usage( -verbose => 1 ) if  $OPTIONS->{flags}->{help};
  47 pod2usage( -verbose => 1 -msg => 'You must supply at least one --where option' ) if scalar @where == 0;
  48
  49 sub verbose {
  50     say @_ if $OPTIONS->{flags}->{verbose};
  51 }
  52
  53 my $where_clause = ' where ' . join ( " and ", @where );
  54
  55 verbose "Where statement: $where_clause";
  56
  57 $GLOBAL->{sth}->{target_items} = $dbh->prepare( $query->{target_items} . $where_clause  );
  58 $GLOBAL->{sth}->{target_items}->execute();
  59
  60 DELITEM: while ( my $item = $GLOBAL->{sth}->{target_items}->fetchrow_hashref() ) {
  61
  62     my $status = C4::Items::ItemSafeToDelete( $item->{biblionumber}, $item->{itemnumber} );
  63     if( $status eq '1' )  {
  64         C4::Items::DelItemCheck( $item->{biblionumber}, $item->{itemnumber} )
  65             if $OPTIONS->{flags}->{commit};
  66         verbose "Deleting '$item->{itemnumber}'";
  67     } else {
  68         verbose "Item '$item->{itemnumber}' not deletd: $status";
  69     }
  70 }
  71
  72 =head1 NAME
  73
  74 delete_items.pl - A batch item deletion tool, which generates a query against the items database and deletes the items matching the criteria specified in the command line arguments.
  75
  76 =head1 SYNOPSIS
  77
  78 delete_items.pl [--help|--manual]
  79
  80 delete_items.pl [--verbose] --where "I<SQL CONDITIONAL EXPRESSION>" ... [--commit]
  81
  82 =cut
  83
  84 =head1 OPTIONS
  85
  86 =over 8
  87
  88 =item B<--help>
  89
  90 Show the brief help information.
  91
  92 =item B<--manual>
  93
  94 Read the manual, with examples.
  95
  96 =item B<--verbose>
  97
  98 Send the "WHERE" clause generated by the collected C<--where>
  99 arguments, as well as items affected to Standard Out.
 100
 101 =item B<--where>
 102
 103 The C<--where> option may called multiple times. The following argument
 104 must be a syntactically valid SQL statement which is part of the C<WHERE>
 105 clause querying the items table. These are joined by C<AND>.
 106
 107 =item B<--commit>
 108
 109 No items will be deleted unless the C<--commit> flag is present.
 110
 111 =back
 112
 113 =cut
 114
 115
 116 =head1 EXAMPLES
 117
 118   The following is an example of this script:
 119
 120  delete_items.pl --where "items.withdrawn ! 0"  --where "items.withdrawn_on < $(date --date="13 month ago" --rfc-3339=date)" --commit
 121
 122  delete_items.pl --where "itemlost >= '1'" --where "itemlost <='4'" --where "itemlost_on < '2014-04-28'" --commit
 123
 124 =cut
 125
 126
 127 =head1 DESCRIPTION
 128
 129  This is a lightweight batch deletion tool for items, suitable for running in a cron job.
 130
 131 =cut
 132
 133
 134 =head1 AUTHOR
 135
 136  Barton Chittenden <barton@bywatersolutions.com>
 137
 138 =cut