misc/cronjobs/delete_items.pl

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