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 strict;
   7 use warnings;
   8
   9 # CPAN modules
  10 use DBI;
  11 use Getopt::Long;
  12
  13 # Koha modules
  14 use C4::Context;
  15 use C4::Items;
  16 use C4::Debug;
  17 use Data::Dumper;
  18
  19 use vars qw($debug $dbh $VERSION);
  20 $dbh = C4::Context->dbh;
  21 $VERSION = "1.00";
  22
  23 sub get_counts() {
  24         my $query = q(
  25         SELECT
  26         (SELECT count(*) FROM statistics WHERE branch="NO_LIBRARY"       ) AS NO_LIBRARY,
  27         (SELECT count(*) FROM statistics WHERE branch             IS NULL) AS NULL_BRANCH,
  28         (SELECT count(*) FROM statistics WHERE itemtype           IS NULL AND itemnumber IS NOT NULL) AS NULL_ITEMTYPE,
  29         (SELECT count(*) FROM statistics WHERE usercode           IS NULL) AS NULL_USERCODE,
  30         (SELECT count(*) FROM statistics WHERE borrowernumber     IS NULL) AS NULL_BORROWERNUMBER,
  31         (SELECT count(*) FROM statistics WHERE associatedborrower IS NULL) AS NULL_ASSOCIATEDBORROWER,
  32         (SELECT count(*) FROM statistics                                 ) AS Total
  33         );
  34         my $sth = $dbh->prepare($query);
  35         $sth->execute;
  36         return $sth->fetchrow_hashref;
  37 }
  38
  39 sub itemnumber_array() {
  40         my $query = q(
  41                 SELECT DISTINCT itemnumber
  42                 FROM statistics
  43                 WHERE itemtype IS NULL
  44                 AND itemnumber IS NOT NULL
  45         );
  46         my $sth = $dbh->prepare($query);
  47         $sth->execute;
  48         my @itemnumbers = map {shift @$_} @{$sth->fetchall_arrayref};
  49         return @itemnumbers;
  50 }
  51 sub null_borrower_lines() {
  52         my $query = "SELECT * FROM statistics WHERE borrowernumber IS NULL";
  53         my $sth = $dbh->prepare($query);
  54         $sth->execute;
  55         print "Number of lines with NULL_BORROWERNUMBER: ", scalar($sth->rows), "\n";
  56         return $sth->fetchall_arrayref({});
  57 }
  58
  59 sub show_counts() {
  60         print "\nThe following counts represent the number of (potential) errors in your statistics table:\n";
  61         my $counts = get_counts;
  62         foreach (sort keys %$counts) {
  63                 $_ eq 'Total' and next;
  64                 $counts->{Error_Total} += $counts->{$_};
  65                 print sprintf("%30s : %3d \n",$_ ,$counts->{$_});
  66         }
  67         print sprintf("%30s : %3d (potential) errors in %d lines\n",'Error_Total',$counts->{Error_Total}, $counts->{'Total'});
  68 }
  69
  70 ##### MAIN #####
  71 print "This operation may take a while.\n";
  72 (scalar @ARGV) or show_counts;
  73 print "\nAttempting to populate missing data.\n";
  74
  75 my (@itemnumbers) = (scalar @ARGV) ? @ARGV : &itemnumber_array;
  76 $debug and print "itemnumbers: ", Dumper(\@itemnumbers);
  77 print "Number of distinct itemnumbers paired with NULL_ITEMTYPE: ", scalar(@itemnumbers), "\n";
  78
  79 my $query = "UPDATE statistics SET itemtype = ? WHERE itemnumber = ?";
  80 my $update = $dbh->prepare($query);
  81 # $debug and print "Update Query: $query\n";
  82 foreach (@itemnumbers) {
  83         my $item = GetItem($_);
  84         unless ($item) {
  85                 print STDERR "\tNo item found for itemnumber $_\n";
  86                 next;
  87         }
  88         $update->execute($item->{itype},$_) or warn "Error in UPDATE execution";
  89         printf "\titemnumber %5d : %7s  (%s rows)\n", $_, $item->{itype}, $update->rows;
  90 }
  91
  92 my $old_issues = $dbh->prepare("SELECT * FROM old_issues WHERE timestamp = ? AND itemnumber = ?");
  93 my     $issues = $dbh->prepare("SELECT * FROM     issues WHERE timestamp = ? AND itemnumber = ?");
  94 $update = $dbh->prepare("UPDATE statistics SET borrowernumber = ? WHERE datetime = ? AND itemnumber = ?");
  95 my $nullborrs = null_borrower_lines;
  96 $debug and print Dumper($nullborrs);
  97 foreach (@$nullborrs) {
  98         $old_issues->execute($_->{datetime},$_->{itemnumber});
  99         my $issue;
 100         if ($old_issues->rows != 1) {
 101                 print STDERR "Warning!  Unexpected number of matches from old_issues: ",$old_issues->rows;
 102                 $issues->execute($_->{datetime},$_->{itemnumber});
 103                 if ($issues->rows != 1) {
 104                         print STDERR ", from issues: ",$issues->rows,"\tskipping this record\n";
 105                         next;
 106                 }
 107                 print STDERR "\n";
 108                 $issue = $issues->fetchrow_hashref;
 109         } else {
 110                 $issue = $old_issues->fetchrow_hashref;
 111         }
 112         printf "\titemnumber: %5d at %20s -- borrowernumber: %5d\n", $_->{itemnumber}, $_->{datetime}, $issue->{borrowernumber};
 113         $update->execute($issue->{borrowernumber},$_->{datetime},$_->{itemnumber});
 114 }
 115
 116 print "\nOperations complete.\n";
 117 (scalar @ARGV) or show_counts;
 118