installer/data/mysql/backfill_statistics.pl

   1 #!/usr/bin/perl
   2
   3 # Part of the Koha Library Software www.koha-community.org
   4 # Licensed under the GPL.
   5
   6 use Modern::Perl;
   7
   8 # CPAN modules
   9 use DBI;
  10 use Getopt::Long;
  11
  12 # Koha modules
  13 use C4::Context;
  14 use C4::Items;
  15 use C4::Debug;
  16 use Data::Dumper;
  17
  18 use vars qw($debug $dbh);
  19 $dbh = C4::Context->dbh;
  20
  21 sub get_counts() {
  22         my $query = q(
  23         SELECT
  24         (SELECT count(*) FROM statistics WHERE branch="NO_LIBRARY"       ) AS NO_LIBRARY,
  25         (SELECT count(*) FROM statistics WHERE branch             IS NULL) AS NULL_BRANCH,
  26         (SELECT count(*) FROM statistics WHERE itemtype           IS NULL AND itemnumber IS NOT NULL) AS NULL_ITEMTYPE,
  27         (SELECT count(*) FROM statistics WHERE borrowernumber     IS NULL) AS NULL_BORROWERNUMBER,
  28         (SELECT count(*) FROM statistics                                 ) AS Total
  29         );
  30         my $sth = $dbh->prepare($query);
  31         $sth->execute;
  32         return $sth->fetchrow_hashref;
  33 }
  34
  35 sub itemnumber_array() {
  36         my $query = q(
  37                 SELECT DISTINCT itemnumber
  38                 FROM statistics
  39                 WHERE itemtype IS NULL
  40                 AND itemnumber IS NOT NULL
  41         );
  42         my $sth = $dbh->prepare($query);
  43         $sth->execute;
  44         my @itemnumbers = map {shift @$_} @{$sth->fetchall_arrayref};
  45         return @itemnumbers;
  46 }
  47 sub null_borrower_lines() {
  48         my $query = "SELECT * FROM statistics WHERE borrowernumber IS NULL";
  49         my $sth = $dbh->prepare($query);
  50         $sth->execute;
  51         print "Number of lines with NULL_BORROWERNUMBER: ", scalar($sth->rows), "\n";
  52         return $sth->fetchall_arrayref({});
  53 }
  54
  55 sub show_counts() {
  56         print "\nThe following counts represent the number of (potential) errors in your statistics table:\n";
  57         my $counts = get_counts;
  58         foreach (sort keys %$counts) {
  59                 $_ eq 'Total' and next;
  60                 $counts->{Error_Total} += $counts->{$_};
  61                 print sprintf("%30s : %3d \n",$_ ,$counts->{$_});
  62         }
  63         print sprintf("%30s : %3d (potential) errors in %d lines\n",'Error_Total',$counts->{Error_Total}, $counts->{'Total'});
  64 }
  65
  66 ##### MAIN #####
  67 print "This operation may take a while.\n";
  68 (scalar @ARGV) or show_counts;
  69 print "\nAttempting to populate missing data.\n";
  70
  71 my (@itemnumbers) = (scalar @ARGV) ? @ARGV : &itemnumber_array;
  72 $debug and print "itemnumbers: ", Dumper(\@itemnumbers);
  73 print "Number of distinct itemnumbers paired with NULL_ITEMTYPE: ", scalar(@itemnumbers), "\n";
  74
  75 my $query = "UPDATE statistics SET itemtype = ? WHERE itemnumber = ?";
  76 my $update = $dbh->prepare($query);
  77 # $debug and print "Update Query: $query\n";
  78 foreach (@itemnumbers) {
  79     my $item = Koha::Items->find($_);
  80     unless ($item) {
  81                 print STDERR "\tNo item found for itemnumber $_\n";
  82                 next;
  83         }
  84     my $itemtype = $item->effective_itemtype;
  85     $update->execute($itemtype,$_) or warn "Error in UPDATE execution";
  86     printf "\titemnumber %5d : %7s  (%s rows)\n", $_, $itemtype, $update->rows;
  87 }
  88
  89 my $old_issues = $dbh->prepare("SELECT * FROM old_issues WHERE timestamp = ? AND itemnumber = ?");
  90 my     $issues = $dbh->prepare("SELECT * FROM     issues WHERE timestamp = ? AND itemnumber = ?");
  91 $update = $dbh->prepare("UPDATE statistics SET borrowernumber = ? WHERE datetime = ? AND itemnumber = ?");
  92 my $nullborrs = null_borrower_lines;
  93 $debug and print Dumper($nullborrs);
  94 foreach (@$nullborrs) {
  95         $old_issues->execute($_->{datetime},$_->{itemnumber});
  96         my $issue;
  97         if ($old_issues->rows != 1) {
  98                 print STDERR "Warning!  Unexpected number of matches from old_issues: ",$old_issues->rows;
  99                 $issues->execute($_->{datetime},$_->{itemnumber});
 100                 if ($issues->rows != 1) {
 101                         print STDERR ", from issues: ",$issues->rows,"\tskipping this record\n";
 102                         next;
 103                 }
 104                 print STDERR "\n";
 105                 $issue = $issues->fetchrow_hashref;
 106         } else {
 107                 $issue = $old_issues->fetchrow_hashref;
 108         }
 109         printf "\titemnumber: %5d at %20s -- borrowernumber: %5d\n", $_->{itemnumber}, $_->{datetime}, $issue->{borrowernumber};
 110         $update->execute($issue->{borrowernumber},$_->{datetime},$_->{itemnumber});
 111 }
 112
 113 print "\nOperations complete.\n";
 114 (scalar @ARGV) or show_counts;
 115