Bug 7298: (follow-up) fix uninitialized variable warning
[koha.git] / reports / issues_stats.pl
index 2d91748..ddc3740 100755 (executable)
 # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 # A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 #
-# You should have received a copy of the GNU General Public License along with
-# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
-# Suite 330, Boston, MA  02111-1307 USA
+# You should have received a copy of the GNU General Public License along
+# with Koha; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 use strict;
-use C4::Auth;
+#use warnings; FIXME - Bug 2505
+
 use CGI;
+use Date::Manip;
+
+use C4::Auth;
+use C4::Debug;
 use C4::Context;
 use C4::Branch; # GetBranches
 use C4::Koha;
 use C4::Output;
 use C4::Circulation;
+use C4::Reports;
 use C4::Dates qw/format_date format_date_in_iso/;
 use C4::Members;
-use Date::Manip;
 
 =head1 NAME
 
-plugin that shows a stats on borrowers
+plugin that shows circulation stats
 
 =head1 DESCRIPTION
 
@@ -40,41 +45,39 @@ plugin that shows a stats on borrowers
 
 =cut
 
-my $debug = 1;
+# my $debug = 1;       # override for now.
 my $input = new CGI;
-my $do_it=$input->param('do_it');
 my $fullreportname = "reports/issues_stats.tmpl";
-my $line = $input->param("Line");
-my $column = $input->param("Column");
-my @filters = $input->param("Filter");
+my $do_it    = $input->param('do_it');
+my $line     = $input->param("Line");
+my $column   = $input->param("Column");
+my @filters  = $input->param("Filter");
 $filters[0]=format_date_in_iso($filters[0]);
 $filters[1]=format_date_in_iso($filters[1]);
-my $podsp = $input->param("DisplayBy");
-my $type = $input->param("PeriodTypeSel");
-my $daysel = $input->param("PeriodDaySel");
+my $podsp    = $input->param("DisplayBy");
+my $type     = $input->param("PeriodTypeSel");
+my $daysel   = $input->param("PeriodDaySel");
 my $monthsel = $input->param("PeriodMonthSel");
-my $calc = $input->param("Cellvalue");
-my $output = $input->param("output");
+my $calc     = $input->param("Cellvalue");
+my $output   = $input->param("output");
 my $basename = $input->param("basename");
-my $mime = $input->param("MIME");
-my $del = $input->param("sep");
-#warn "calcul : ".$calc;
-my ($template, $borrowernumber, $cookie)
-    = get_template_and_user({template_name => $fullreportname,
-                            query => $input,
-                            type => "intranet",
-                            authnotrequired => 0,
-                            flagsrequired => {reports => 1},
-                            debug => 0,
-                            });
+my ($template, $borrowernumber, $cookie) = get_template_and_user({
+       template_name => $fullreportname,
+       query => $input,
+       type => "intranet",
+       authnotrequired => 0,
+       flagsrequired => {reports => '*'},
+       debug => 0,
+});
+our $sep     = $input->param("sep");
+$sep = "\t" if ($sep eq 'tabulation');
 $template->param(do_it => $do_it,
-        DHTMLcalendar_dateformat => C4::Dates->DHTMLcalendar(),
-                );
+);
 
 my $itemtypes = GetItemTypes();
 my $categoryloop = GetBorrowercategoryList;
 
-my $ccodes = GetKohaAuthorisedValues("items.ccode");
+my $ccodes    = GetKohaAuthorisedValues("items.ccode");
 my $locations = GetKohaAuthorisedValues("items.location");
 
 my $Bsort1 = GetAuthorisedValues("Bsort1");
@@ -86,515 +89,438 @@ $hassort2=1 if $Bsort2;
 
 if ($do_it) {
 # Displaying results
-    my $results = calculate($line, $column, $podsp, $type, $daysel, $monthsel, $calc, \@filters);
-    if ($output eq "screen"){
+       my $results = calculate($line, $column, $podsp, $type, $daysel, $monthsel, $calc, \@filters);
+       if ($output eq "screen"){
 # Printing results to screen
-            $template->param(mainloop => $results);
-            output_html_with_http_headers $input, $cookie, $template->output;
-            exit(1);
-    } else {
+               $template->param(mainloop => $results);
+               output_html_with_http_headers $input, $cookie, $template->output;
+       } else {
 # Printing to a csv file
         print $input->header(-type => 'application/vnd.sun.xml.calc',
                             -encoding    => 'utf-8',
                             -attachment=>"$basename.csv",
                             -filename=>"$basename.csv" );
-        my $cols = @$results[0]->{loopcol};
-        my $lines = @$results[0]->{looprow};
-        my $sep;
-        $sep =C4::Context->preference("delimiter");
+               my $cols  = @$results[0]->{loopcol};
+               my $lines = @$results[0]->{looprow};
 # header top-right
-        print @$results[0]->{line} ."/". @$results[0]->{column} .$sep;
+               print @$results[0]->{line} ."/". @$results[0]->{column} .$sep;
 # Other header
-        foreach my $col ( @$cols ) {
-                print $col->{coltitle}.$sep;
-        }
-        print "Total\n";
+               foreach my $col ( @$cols ) {
+                       print $col->{coltitle}.$sep;
+               }
+               print "Total\n";
 # Table
-        foreach my $line ( @$lines ) {
-                my $x = $line->{loopcell};
-                print $line->{rowtitle}.$sep;
-                foreach my $cell (@$x) {
-                        print $cell->{value}.$sep;
-                }
-                print $line->{totalrow};
-                print "\n";
-        }
+               foreach my $line ( @$lines ) {
+                       my $x = $line->{loopcell};
+                       print $line->{rowtitle}.$sep;
+                       print map {$_->{value}.$sep} @$x;
+                       print $line->{totalrow}, "\n";
+               }
 # footer
         print "TOTAL";
         $cols = @$results[0]->{loopfooter};
-        foreach my $col ( @$cols ) {
-                print $sep.$col->{totalcol};
-        }
+               print map {$sep.$_->{totalcol}} @$cols;
         print $sep.@$results[0]->{total};
-        exit(1);
-    }
-# Displaying choices
-} else {
-    my $dbh = C4::Context->dbh;
-    my @values;
-    my %labels;
-    my %select;
-
-   # create itemtype arrayref for <select>.
-   my @itemtypeloop;
-    for my $itype ( keys(%$itemtypes)) {
-               push @itemtypeloop, { code => $itype , description => $itemtypes->{$itype}->{description} } ;
        }
-    
-    my $branches=GetBranches();
-       my @branchloop;
-    foreach (keys %$branches) {
-        my $thisbranch = ''; 
-        my %row = (branchcode => $_,
-            selected => ($thisbranch eq $_ ? 1 : 0),
-            code => $branches->{$_}->{'branchcode'},
-            description => $branches->{$_}->{'branchname'},
-        );
-        push @branchloop, \%row;
-    }
+       exit; # exit either way after $do_it
+}
+
+my $dbh = C4::Context->dbh;
+my @values;
+my %labels;
+my %select;
+
+# create itemtype arrayref for <select>.
+my @itemtypeloop;
+for my $itype ( sort {$itemtypes->{$a}->{description} cmp $itemtypes->{$b}->{description}} keys(%$itemtypes)) {
+       push @itemtypeloop, { code => $itype , description => $itemtypes->{$itype}->{description} } ;
+}
 
     # location list
-    my @locations;
-    foreach (sort keys %$locations) {
-        push @locations, { code => $_, description => "$_ - " . $locations->{$_} };
-    }
+my @locations;
+foreach (sort keys %$locations) {
+       push @locations, { code => $_, description => "$_ - " . $locations->{$_} };
+}
     
-    my @ccodes;
-    foreach (keys %$ccodes) {
-        push @ccodes, { code => $_, description => $ccodes->{$_} };
-    }
+my @ccodes;
+foreach (sort {$ccodes->{$a} cmp $ccodes->{$b}} keys %$ccodes) {
+       push @ccodes, { code => $_, description => $ccodes->{$_} };
+}
 
-    # various
-    my @mime = ( C4::Context->preference("MIME") );
-    
-    my $CGIextChoice=CGI::scrolling_list(
-                            -name     => 'MIME',
-                            -id       => 'MIME',
-                            -values   => \@mime,
-                            -size     => 1,
-                            -multiple => 0 );
+my $CGIextChoice=CGI::scrolling_list(
+       -name     => 'MIME',
+       -id       => 'MIME',
+       -values   => ['CSV'], # FIXME translation
+       -size     => 1,
+       -multiple => 0 );
     
-    my @dels = ( C4::Context->preference("delimiter") );
-    my $CGIsepChoice=CGI::scrolling_list(
-                            -name     => 'sep',
-                            -id       => 'sep',
-                            -values   => \@dels,
-                            -size     => 1,
-                            -multiple => 0 );
+my $CGIsepChoice=GetDelimiterChoices;
  
-    $template->param(
-        categoryloop => $categoryloop,
-               itemtypeloop => \@itemtypeloop,
-               hassort1=> $hassort1,
-        hassort2=> $hassort2,
-               Bsort1 => $Bsort1,
-               Bsort2 => $Bsort2,
-        CGIextChoice => $CGIextChoice,
-        CGIsepChoice => $CGIsepChoice,
-        locationloop => \@locations,
-               ccodeloop => \@ccodes,
-        branchloop => \@branchloop,
-        );
-    output_html_with_http_headers $input, $cookie, $template->output;
-}
-
-
-
+$template->param(
+       categoryloop => $categoryloop,
+       itemtypeloop => \@itemtypeloop,
+       locationloop => \@locations,
+          ccodeloop => \@ccodes,
+         branchloop => GetBranchesLoop(C4::Context->userenv->{'branch'}),
+       hassort1=> $hassort1,
+       hassort2=> $hassort2,
+       Bsort1 => $Bsort1,
+       Bsort2 => $Bsort2,
+       CGIextChoice => $CGIextChoice,
+       CGIsepChoice => $CGIsepChoice,
+);
+output_html_with_http_headers $input, $cookie, $template->output;
 
 sub calculate {
-        my ($line, $column, $dsp, $type,$daysel,$monthsel ,$process, $filters) = @_;
-        my @mainloop;
-        my @loopfooter;
-        my @loopcol;
-        my @loopline;
-        my @looprow;
-        my %globalline;
-        my $grantotal =0;
+       my ($line, $column, $dsp, $type,$daysel,$monthsel ,$process, $filters) = @_;
+       my @loopfooter;
+       my @loopcol;
+       my @loopline;
+       my @looprow;
+       my %globalline;
+       my $grantotal =0;
 # extract parameters
-        my $dbh = C4::Context->dbh;
+       my $dbh = C4::Context->dbh;
 
 # Filters
 # Checking filters
 #
-        my @loopfilter;
-        for (my $i=0;$i<=10;$i++) {
-                my %cell;
-                if ( @$filters[$i] ) {
-                        if (($i==1) and (@$filters[$i-1])) {
-                                $cell{err} = 1 if (@$filters[$i]<@$filters[$i-1]) ;
-                            }
-                        # format the dates filters, otherwise just fill as is
-                        if ($i>=2) {
-                            $cell{filter} .= @$filters[$i];
-                        } else {
-                            $cell{filter} .= format_date(@$filters[$i]);
-                        }
-                        $cell{crit} .="Period From" if ($i==0);
-                        $cell{crit} .="Period To" if ($i==1);
-                        $cell{crit} .="Patron Category=" if ($i==2);
-                        $cell{crit} .="Item Type=" if ($i==3);
-                        $cell{crit} .="Library=" if ($i==4);
-                        $cell{crit} .="Collection=" if ($i==5);
-                        $cell{crit} .="Location=" if ($i==6);
-                        $cell{crit} .="Item callnumber>=" if ($i==7);
-                        $cell{crit} .="Item callnumber<" if ($i==8);
-                        $cell{crit} .="sort1=" if ($i==9);
-                        $cell{crit} .="sort2=" if ($i==10);
-                                               # FIXME - no translation mechanism !
-                        push @loopfilter, \%cell;
-                }
+       my @loopfilter;
+       for (my $i=0;$i<=12;$i++) {
+               my %cell;
+               (@$filters[$i]) or next;
+        if (($i==1) and (@$filters[$i-1])) {
+            $cell{err} = 1 if (@$filters[$i]<@$filters[$i-1]) ;
         }
-        push @loopfilter,{crit=>"Event",filter=>$type};
-        push @loopfilter,{crit=>"Display by ",filter=>$dsp} if ($dsp);
-        push @loopfilter,{crit=>"Select Day ",filter=>$daysel} if ($daysel);
-        push @loopfilter,{crit=>"Select Month ",filter=>$monthsel} if ($monthsel);
-        
-        
-        my @linefilter;
-      $debug and warn "filtres ". join "|", @filters;
-        my ($colsource, $linesource);
-        $linefilter[0] = @$filters[0] if ($line =~ /datetime/ )  ;
-        $linefilter[1] = @$filters[1] if ($line =~ /datetime/ )  ;
-               if ($line =~ /category/ )  {
-               $linefilter[0] = @$filters[2] ;
-               }
-               if ($line =~ /itemtype/ ) {
-               $linefilter[0] = @$filters[3] ;
-               }
-        $linefilter[0] = @$filters[4] if ($line =~ /branch/ )  ;
-               if ($line =~ /ccode/ ) {
-               $linefilter[0] = @$filters[5] ;
-                       $linesource = 'items';
-               }
-               if ($line =~ /location/ ) {
-               $linefilter[0] = @$filters[6] ;
-                       $linesource = 'items';
+            # format the dates filters, otherwise just fill as is
+        if ($i>=2) {
+               $cell{filter} = @$filters[$i];
+        } else {
+               $cell{filter} = format_date(@$filters[$i]);
                }
-        $linefilter[0] = @$filters[9] if ($line =~ /sort1/ ) ;
-        $linefilter[0] = @$filters[10] if ($line =~ /sort2/ ) ;
-
-        my @colfilter ;
-        $colfilter[0] = @$filters[0] if ($column =~ /datetime/) ;
-        $colfilter[1] = @$filters[1] if ($column =~ /datetime/) ;
-        $colfilter[0] = @$filters[2] if ($column =~ /category/) ;
-        $colfilter[0] = @$filters[3] if ($column =~ /itemtype/) ;
-        $colfilter[0] = @$filters[4] if ($column =~ /branch/ )  ;
-               if ($column =~ /ccode/ ) {
-               $colfilter[0] = @$filters[5] ;
-                       $colsource = 'items';
+               $cell{crit} = 
+            ( $i == 0 )  ? "Period From"
+          : ( $i == 1 )  ? "Period To"
+          : ( $i == 2 )  ? "Patron Category ="
+          : ( $i == 3 )  ? "Item Type ="
+          : ( $i == 4 )  ? "Library ="
+          : ( $i == 5 )  ? "Collection ="
+          : ( $i == 6 )  ? "Location ="
+          : ( $i == 7 )  ? "Item callnumber >="
+          : ( $i == 8 )  ? "Item callnumber <"
+          : ( $i == 9 )  ? "sort1 ="
+          : ( $i == 10 ) ? "sort2 ="
+          : ( $i == 11 ) ? "Home library ="
+          : ( $i == 12 )? "Holding library ="
+          :                "UNKNOWN FILTER ($i)";
+
+               # FIXME - no translation mechanism !
+               push @loopfilter, \%cell;
+    }
+       push @loopfilter,{crit=>"Event",       filter=>$type    };
+       push @loopfilter,{crit=>"Display by",  filter=>$dsp     } if ($dsp);
+       push @loopfilter,{crit=>"Select Day",  filter=>$daysel  } if ($daysel);
+       push @loopfilter,{crit=>"Select Month",filter=>$monthsel} if ($monthsel);
+
+       my @linefilter;
+       $debug and warn "filtres ". join "|", @filters;
+       my ($colsource, $linesource);
+       $linefilter[1] = @$filters[1] if ($line =~ /datetime/);
+       $linefilter[0] = 
+           ( $line =~ /datetime/ ) ? @$filters[0]
+      : ( $line =~ /category/ ) ? @$filters[2]
+      : ( $line =~ /itemtype/ ) ? @$filters[3]
+      : ( $line =~ /^branch/ )   ? @$filters[4]
+      : ( $line =~ /ccode/ )    ? @$filters[5]
+      : ( $line =~ /location/ ) ? @$filters[6]
+      : ( $line =~ /sort1/ )    ? @$filters[9]
+      : ( $line =~ /sort2/ )    ? @$filters[10]
+      : ( $line =~ /homebranch/)    ? @$filters[11]
+      : ( $line =~ /holdingbranch/) ? @$filters[12]
+      :                           undef;
+
+    if ( $line =~ /ccode/ or $line =~ /location/ or $line =~ /homebranch/ or $line =~ /holdingbranch/ ) {
+               $linesource = 'items';
+       }
+
+       my @colfilter;
+       $colfilter[1] = @$filters[1] if ($column =~ /datetime/);
+       $colfilter[0] = 
+        ( $column =~ /datetime/ ) ? @$filters[0]
+      : ( $column =~ /category/ ) ? @$filters[2]
+      : ( $column =~ /itemtype/ ) ? @$filters[3]
+      : ( $column =~ /^branch/ )   ? @$filters[4]
+      : ( $column =~ /ccode/ )    ? @$filters[5]
+      : ( $column =~ /location/ ) ? @$filters[6]
+      : ( $column =~ /sort1/ )    ? @$filters[9]
+      : ( $column =~ /sort1/ )    ? @$filters[10]
+      : ( $column =~ /homebranch/)    ? @$filters[11]
+      : ( $column =~ /holdingbranch/) ? @$filters[12]
+      :                             undef;
+
+    if ( $column =~ /ccode/ or $column =~ /location/ or $column =~ /homebranch/ or $column =~ /holdingbranch/ ) {
+               $colsource = 'items';
+       }
+# 1st, loop rows.
+       my $linefield;
+       if ($line =~ /datetime/) {
+               # by Day, Month or Year (1,2,3 respectively)
+               $linefield = ($dsp == 1) ? "  dayname($line)" :
+                                        ($dsp == 2) ? "monthname($line)" :
+                                        ($dsp == 3) ? "     Year($line)" :
+                                       'date_format(`datetime`,"%Y-%m-%d")'; # Probably should be left alone or passed through C4::Dates
+       } else {
+               $linefield = $line;
+       }
+       my $lineorder = ($linefield =~ /dayname/) ? "weekday($line)" :
+                                       ($linefield =~ /^month/ ) ? "  month($line)" : $linefield;
+
+       my $strsth = "SELECT distinctrow $linefield FROM statistics, ";
+               # get stats on items if ccode or location, otherwise borrowers.
+       $strsth .= ($linesource eq 'items' ) ?
+                       " items     WHERE (statistics.itemnumber=items.itemnumber) " :
+                       " borrowers WHERE (statistics.borrowernumber=borrowers.borrowernumber) ";
+       $strsth .= " AND $line is not null ";
+
+       if ($line =~ /datetime/) {
+               if ($linefilter[1] and ($linefilter[0])) {
+                       $strsth .= " AND $line between ? AND ? ";
+               } elsif ($linefilter[1]) {
+                       $strsth .= " AND $line < ? ";
+               } elsif ($linefilter[0]) {
+               $strsth .= " AND $line > ? ";
                }
-               if ($column =~ /location/ ) {
-               $colfilter[0] = @$filters[6] ;
-                       $colsource = 'items';
+               $strsth .= " AND type ='".$type."' " if $type;
+               $strsth .= " AND   dayname(datetime) ='".   $daysel ."' " if $daysel;
+               $strsth .= " AND monthname(datetime) ='". $monthsel ."' " if $monthsel;
+       } elsif ($linefilter[0]) {
+               $linefilter[0] =~ s/\*/%/g;
+               $strsth .= " AND $line LIKE ? ";
+       }
+       $strsth .=" group by $linefield order by $lineorder ";
+       $debug and warn $strsth;
+       push @loopfilter, {crit=>'SQL =', sql=>1, filter=>$strsth};
+       my $sth = $dbh->prepare( $strsth );
+       if ((@linefilter) and ($linefilter[1])){
+               $sth->execute($linefilter[0],$linefilter[1]);
+       } elsif ($linefilter[0]) {
+               $sth->execute($linefilter[0]);
+       } else {
+               $sth->execute;
+       }
+
+       while (my ($celvalue) = $sth->fetchrow) {
+               my %cell = (rowtitle => $celvalue, totalrow => 0); # we leave 'rowtitle' as hash key (used when filling the table), and add coltitle_display
+               $cell{rowtitle_display} =
+                       ($line =~ /ccode/   ) ? $ccodes->{$celvalue}    :
+                       ($line =~ /location/) ? $locations->{$celvalue} :
+                       ($line =~ /itemtype/) ? $itemtypes->{$celvalue}->{description} :
+                       $celvalue; # default fallback
+               if ($line =~ /sort1/) {
+                       foreach (@$Bsort1) {
+                               ($celvalue eq $_->{authorised_value}) or next;
+                               $cell{rowtitle_display} = $_->{lib} and last;
+                       }
+               } elsif ($line =~ /sort2/) {
+                       foreach (@$Bsort2) {
+                               ($celvalue eq $_->{authorised_value}) or next;
+                               $cell{rowtitle_display} = $_->{lib} and last;
+                       }
+               } elsif ($line =~ /category/) {
+                       foreach (@$categoryloop) {
+                               ($celvalue eq $_->{categorycode}) or next;
+                               $cell{rowtitle_display} = $_->{description} and last;
+                       }
                }
-        $colfilter[0] = @$filters[9] if ($column =~ /sort1/  )  ;
-        $colfilter[0] = @$filters[10] if ($column =~ /sort2/  )  ;
-# 1st, loop rows.                             
-        my $linefield;                               
-        if (($line =~/datetime/) and ($dsp == 1)) {
-                #Display by day
-                $linefield .="dayname($line)";  
-        } elsif (($line=~/datetime/) and ($dsp == 2)) {
-                #Display by Month
-                $linefield .="monthname($line) ";  
-        } elsif (($line=~/datetime/) and ($dsp == 3)) {
-                #Display by Year
-                $linefield .="Year($line)";
-        } elsif ($line=~/datetime/) {
-                $linefield .= 'date_format(`datetime`,"%Y-%m-%d")';
-        } else {
-                $linefield .= $line;
-        }  
-        my $lineorder = $linefield;
-        $lineorder = "weekday($line)" if $linefield =~ /dayname/;
-        $lineorder = "month($line)" if $linefield =~ "^month";
-        $lineorder = $linefield if (not ($linefield =~ "^month") and not($linefield =~ /dayname/));
-
-        my $strsth;
-        $strsth .= "select distinctrow $linefield from statistics, ";
-               # get stats on items if ccode or location, otherwise borrowers.
-               $strsth .= ($linesource eq 'items' ) ? 
-                                               "items where (statistics.itemnumber=items.itemnumber) " 
-                                               : " borrowers where (statistics.borrowernumber=borrowers.borrowernumber) ";
-               $strsth .= " and $line is not null ";
-        
-        if ($line=~/datetime/) {
-                if ($linefilter[1] and ($linefilter[0])){
-                        $strsth .= " and $line between ? and ? " ;
-                } elsif ($linefilter[1]) {
-                                $strsth .= " and $line < ? " ;
-                } elsif ($linefilter[0]) {
-                        $strsth .= " and $line > ? " ;
-                }
-                $strsth .= " and type ='".$type."' " if $type;
-                $strsth .= " and dayname(datetime) ='". $daysel ."' " if $daysel;
-                $strsth .= " and monthname(datetime) ='". $monthsel ."' " if $monthsel;
-        } elsif ($linefilter[0]) {
-                $linefilter[0] =~ s/\*/%/g;
-                $strsth .= " and $line LIKE ? " ;
-        }
-        $strsth .=" group by $linefield";
-        $strsth .=" order by $lineorder";
-        $debug and warn $strsth;
-        
-        my $sth = $dbh->prepare( $strsth );
-        if (( @linefilter ) and ($linefilter[1])){
-                $sth->execute("'".$linefilter[0]."'","'".$linefilter[1]."'");
-        } elsif ($linefilter[0]) {
-                $sth->execute($linefilter[0]);
-        } else {
-                $sth->execute;
-        }
-        
-        while ( my ($celvalue) = $sth->fetchrow) {
-                my %cell;
-                               if($line =~ /ccode/) {
-                                       $cell{rowtitle_display} = $ccodes->{$celvalue};
-                               } elsif($line=~/location/) {
-                                        $cell{rowtitle_display} = $locations->{$celvalue};
-                               } elsif($line=~/sort1/) {
-                                       for my $s (@$Bsort1) {
-                                               $cell{rowtitle_display} = $s->{lib} if ($celvalue eq $s->{authorised_value});
-                                       }
-                                       $cell{rowtitle_display} = $celvalue unless  $cell{rowtitle_display};
-                               } elsif($line=~/sort2/) {
-                                       for my $s (@$Bsort2) {
-                                               $cell{rowtitle_display} = $s->{lib} if ($celvalue eq $s->{authorised_value});
-                                       }
-                                       $cell{rowtitle_display} = $celvalue unless  $cell{rowtitle_display};
-                               } elsif($line=~/categorycode/) {
-                                       for my $s (@$categoryloop) { 
-                                               $cell{rowtitle_display} = $s->{description} if ($celvalue eq $s->{categorycode});
-                                       }
-                                       $cell{rowtitle_display} = $celvalue unless  $cell{rowtitle_display};
-                               } elsif($line=~/itemtype/) {
-                                       $cell{rowtitle_display} = $itemtypes->{$celvalue}->{description};
-                               } else {
-                               $cell{rowtitle_display} = $celvalue;
-                               }                                       
-                if ($celvalue) {
-                        $cell{rowtitle} = $celvalue;
-                } else {
-                        $cell{rowtitle} = "";
-                }
-                $cell{totalrow} = 0;
-                push @loopline, \%cell;
-        }
+               push @loopline, \%cell;
+       }
 
 # 2nd, loop cols.
-        my $colfield;
-        my $colorder;                               
-        if (($column =~/datetime/) and ($dsp == 1)) {
-                #Display by day
-                $colfield .="dayname($column)";  
-        } elsif (($column=~/datetime/) and ($dsp == 2)) {
-                #Display by Month
-                $colfield .="monthname($column)";  
-        } elsif (($column=~/datetime/) and ($dsp == 3)) {
-                #Display by Year
-                $colfield .="Year($column)";
-        } elsif ($column=~/datetime/) {
-                $colfield .='date_format(`datetime`,"%Y-%m-%d")';      
-        } else {
-                $colfield .= $column;
-        }  
-        $colorder = "weekday($line)" if $colfield =~ "^dayname";
-        $colorder = "month($line)" if $colfield =~ "^month";
-        $colorder = $colfield if (not ($colfield =~ "^month") and not($colfield =~ "^dayname"));
-        
-        my $strsth2; 
-        $strsth2 .= "select distinctrow $colfield from statistics, ";
-               # get stats on items if ccode or location, otherwise borrowers.
-               $strsth2 .= ($colsource eq 'items' ) ? 
-                                               "items where (statistics.itemnumber=items.itemnumber) " 
-                                               : " borrowers where (statistics.borrowernumber=borrowers.borrowernumber) ";
-               $strsth2 .= " and $column is not null ";
-        
-        if ($column=~/datetime/){
-                if (($colfilter[1]) and ($colfilter[0])){
-                        $strsth2 .= " and $column between ? and ? " ;
-                } elsif ($colfilter[1]) {
-                        $strsth2 .= " and $column < ? " ;
-                } elsif ($colfilter[0]) {
-                        $strsth2 .= " and $column > ? " ;
-                }
-                $strsth2 .= " and type ='".$type."' " if $type;
-                $strsth2 .= " and dayname(datetime) ='". $daysel ."' " if $daysel;
-                $strsth2 .= " and monthname(datetime) ='". $monthsel ."' " if $monthsel;
-        } elsif ($colfilter[0]) {
-                $colfilter[0] =~ s/\*/%/g;
-                $strsth2 .= " and $column LIKE ? " ;
-        }
-        $strsth2 .=" group by $colfield";
-        $strsth2 .=" order by $colorder";
-        
-        my $sth2 = $dbh->prepare( $strsth2 );
-        if (( @colfilter ) and ($colfilter[1])){
-                $sth2->execute("'".$colfilter[0]."'","'".$colfilter[1]."'");
+       my $colfield;
+       my $colorder;
+       if ($column =~ /datetime/) {
+               #Display by Day, Month or Year (1,2,3 respectively)
+               $colfield = ($dsp == 1) ? "  dayname($column)" :
+                                       ($dsp == 2) ? "monthname($column)" :
+                                       ($dsp == 3) ? "     Year($column)" :
+                                       'date_format(`datetime`,"%Y-%m-%d")'; # Probably should be left alone or passed through C4::Dates
+       } else {
+               $colfield = $column;
+       }
+       $colorder = ($colfield =~ /dayname/) ? "weekday($column)" :
+                               ($colfield =~ /^month/ ) ? "  month($column)" : $colfield;
+       my $strsth2 = "SELECT distinctrow $colfield FROM statistics, ";
+       # get stats on items if ccode or location, otherwise borrowers.
+       $strsth2 .= ($colsource eq 'items' ) ?
+                               "items     WHERE (statistics.itemnumber=items.itemnumber) " :
+                               "borrowers WHERE (statistics.borrowernumber=borrowers.borrowernumber) ";
+       $strsth2 .= " AND $column IS NOT NULL ";
+
+       if ($column =~ /datetime/){
+        if (($colfilter[1]) and ($colfilter[0])){
+                       $strsth2 .= " AND $column BETWEEN ? AND ? " ;
+        } elsif ($colfilter[1]) {
+                       $strsth2 .= " AND $column < ? " ;
         } elsif ($colfilter[0]) {
-                $sth2->execute($colfilter[0]);
-        } else {
-                $sth2->execute;
+                       $strsth2 .= " AND $column > ? " ;
         }
-        
+        $strsth2 .= " AND                type ='". $type     ."' " if $type;
+        $strsth2 .= " AND   dayname(datetime) ='". $daysel   ."' " if $daysel;
+        $strsth2 .= " AND monthname(datetime) ='". $monthsel ."' " if $monthsel;
+    } elsif ($colfilter[0]) {
+        $colfilter[0] =~ s/\*/%/g;
+        $strsth2 .= " AND $column LIKE ? " ;
+    }
+       $strsth2 .=" GROUP BY $colfield ORDER BY $colorder ";
+
+       my $sth2 = $dbh->prepare($strsth2);
+       push @loopfilter, {crit=>'SQL =', sql=>1, filter=>$strsth2};
+       if ((@colfilter) and ($colfilter[1])){
+               $sth2->execute($colfilter[0], $colfilter[1]);
+       } elsif ($colfilter[0]) {
+               $sth2->execute($colfilter[0]);
+       } else {
+               $sth2->execute;
+       }
 
-        while (my ($celvalue) = $sth2->fetchrow) {
-                my %cell;
-                my %ft;
-                               if($column =~ /ccode/) {
-                                       $cell{coltitle_display} = $ccodes->{$celvalue};
-                               } elsif($column=~/location/) {
-                                        $cell{coltitle_display} = $locations->{$celvalue};
-                               } elsif($column=~/itemtype/) {
-                                       $cell{coltitle_display} = $itemtypes->{$celvalue}->{description};
-                               } elsif($column=~/sort1/) {
-                                       for my $s (@$Bsort1) {
-                                               $cell{coltitle_display} = $s->{lib} if ($celvalue eq $s->{authorised_value});
-                                       }
-                                       $cell{coltitle_display} = $celvalue unless  $cell{coltitle_display};
-                               } elsif($column=~/sort2/) {
-                                       for my $s (@$Bsort2) {
-                                               $cell{coltitle_display} = $s->{lib} if ($celvalue eq $s->{authorised_value});
-                                       }
-                                       $cell{coltitle_display} = $celvalue unless  $cell{coltitle_display};
-                               } elsif($column=~/category/) {
-                                       for my $s (@$categoryloop) {
-                                               $cell{coltitle_display} = $s->{description} if ($celvalue eq $s->{categorycode});
-                                       }
-                                       $cell{coltitle_display} = $celvalue unless  $cell{coltitle_display};
-                               } else {
-                               $cell{coltitle_display} = $celvalue;
-                               }                                       
-                       $cell{coltitle} = $celvalue;
-                               # we leave this as 'coltitle' since we use it as hash key when filling the table, and add a title_display key.
-                $ft{totalcol} = 0;
-                push @loopcol, \%cell;
-        }
-#      warn "fin des titres colonnes";
+       while (my ($celvalue) = $sth2->fetchrow) {
+               my %cell = (coltitle => $celvalue); # we leave 'coltitle' as hash key (used when filling the table), and add coltitle_display
+               $cell{coltitle_display} =
+                       ($column =~ /ccode/   ) ?    $ccodes->{$celvalue} :
+                       ($column =~ /location/) ? $locations->{$celvalue} :
+                       ($column =~ /itemtype/) ? $itemtypes->{$celvalue}->{description} :
+                       $celvalue; # default fallback
+               if ($column =~ /sort1/) {
+                       foreach (@$Bsort1) {
+                               ($celvalue eq $_->{authorised_value}) or next;
+                               $cell{coltitle_display} = $_->{lib} and last;
+                       }
+               } elsif ($column =~ /sort2/) {
+                       foreach (@$Bsort2) {
+                               ($celvalue eq $_->{authorised_value}) or next;
+                               $cell{coltitle_display} = $_->{lib} and last;
+                       }
+               } elsif ($column =~ /category/) {
+                       foreach (@$categoryloop) {
+                               ($celvalue eq $_->{categorycode}) or next;
+                               $cell{coltitle_display} = $_->{description} and last;
+                       }
+               }
+               push @loopcol, \%cell;
+       }
 
-        my $i=0;
-        my @totalcol;
-        
-        #Initialization of cell values.....
-        my %table;
-#      warn "init table";
-        foreach my $row ( @loopline ) {
-                foreach my $col ( @loopcol ) {
-                               $debug and warn " init table : $row->{rowtitle} ( $row->{rowtitle_display} ) / $col->{coltitle} ( $col->{coltitle_display} )  ";
-                        $table{$row->{rowtitle}}->{$col->{coltitle}}=0;
-                }
-                $table{$row->{rowtitle}}->{totalrow}=0;
-        }
+       #Initialization of cell values.....
+       my %table;
+       foreach my $row (@loopline) {
+               foreach my $col (@loopcol) {
+                       $debug and warn " init table : $row->{rowtitle} ( $row->{rowtitle_display} ) / $col->{coltitle} ( $col->{coltitle_display} )  ";
+                       $table{$row->{rowtitle}}->{$col->{coltitle}} = 0;
+               }
+               $table{$row->{rowtitle}}->{totalrow} = 0;
+       }
 
 # preparing calculation
-        my $strcalc ;
-
-        $strcalc .= "SELECT $linefield, $colfield, ";
-        $strcalc .= "COUNT( * ) " if ($process ==1);
-        if ($process ==2){
-                $strcalc .= "(COUNT(DISTINCT borrowers.borrowernumber))" ;
-        }
-        if ($process ==3){
-                $strcalc .= "(COUNT(DISTINCT issues.itemnumber))" ;
-        }
-        if ($process ==4){
-                my $rqbookcount = $dbh->prepare("SELECT count(*) FROM items");
-                $rqbookcount->execute;
-                my ($bookcount) = $rqbookcount->fetchrow;
-                $strcalc .= "100*(COUNT(DISTINCT issues.itemnumber))/ $bookcount " ;
-        }
-        $strcalc .= "FROM statistics ";
-        $strcalc .= "LEFT JOIN borrowers ON statistics.borrowernumber=borrowers.borrowernumber ";
-        $strcalc .= "LEFT JOIN items ON statistics.itemnumber=items.itemnumber " if ( ($colsource eq 'items') || @$filters[5] || @$filters[6] ||@$filters[7] || @$filters[8] );
-        
-        $strcalc .= "WHERE 1=1 ";
-        @$filters[0]=~ s/\*/%/g if (@$filters[0]);
-        $strcalc .= " AND statistics.datetime > '" . @$filters[0] ."'" if ( @$filters[0] );
-        @$filters[1]=~ s/\*/%/g if (@$filters[1]);
-        $strcalc .= " AND statistics.datetime < '" . @$filters[1] ."'" if ( @$filters[1] );
-        @$filters[2]=~ s/\*/%/g if (@$filters[2]);
-        $strcalc .= " AND borrowers.categorycode like '" . @$filters[2] ."'" if ( @$filters[2] );
-        @$filters[3]=~ s/\*/%/g if (@$filters[3]);
-        $strcalc .= " AND statistics.itemtype like '" . @$filters[3] ."'" if ( @$filters[3] );
-        @$filters[4]=~ s/\*/%/g if (@$filters[4]);
-        $strcalc .= " AND statistics.branch like '" . @$filters[4] ."'" if ( @$filters[4] );
-        @$filters[5]=~ s/\*/%/g if (@$filters[5]);
-        $strcalc .= " AND items.ccode like '" . @$filters[5] ."'" if ( @$filters[5] );
-        @$filters[6]=~ s/\*/%/g if (@$filters[6]);
-        $strcalc .= " AND items.location like '" . @$filters[6] ."'" if ( @$filters[6] );
-        @$filters[7]=~ s/\*/%/g if (@$filters[7]);
-        $strcalc .= " AND items.itemcallnumber >='" . @$filters[7] ."'" if ( @$filters[7] );
-        @$filters[8]=~ s/\*/%/g if (@$filters[8]);
-        $strcalc .= " AND items.itemcallnumber <'" . @$filters[8] ."'" if ( @$filters[8] );
-        @$filters[9]=~ s/\*/%/g if (@$filters[9]);
-        $strcalc .= " AND borrowers.sort1 like '" . @$filters[9] ."'" if ( @$filters[9] );
-        @$filters[10]=~ s/\*/%/g if (@$filters[10]);
-        $strcalc .= " AND borrowers.sort2 like '" . @$filters[10] ."'" if ( @$filters[10] );
-        $strcalc .= " AND dayname(datetime) like '" . $daysel ."'" if ( $daysel );
-        $strcalc .= " AND monthname(datetime) like '" . $monthsel ."'" if ( $monthsel );
-        $strcalc .= " AND statistics.type like '" . $type ."'" if ( $type );
+    my $strcalc = "SELECT $linefield, $colfield, ";
+        $strcalc .= ($process == 1) ? " COUNT(*) "                                 :
+                                       ($process == 2) ? "(COUNT(DISTINCT borrowers.borrowernumber))" :
+                               ($process == 3) ? "(COUNT(DISTINCT statistics.itemnumber))"        : '';
+       if ($process == 4) {
+               my $rqbookcount = $dbh->prepare("SELECT count(*) FROM items");
+               $rqbookcount->execute;
+               my ($bookcount) = $rqbookcount->fetchrow;
+               $strcalc .= "100*(COUNT(DISTINCT statistics.itemnumber))/ $bookcount " ;
+       }
+       $strcalc .= "
+        FROM statistics
+        LEFT JOIN borrowers ON statistics.borrowernumber=borrowers.borrowernumber
+       ";
+       $strcalc .= "LEFT JOIN items ON statistics.itemnumber=items.itemnumber "
+        if ($linefield =~ /^items\./ or $colfield =~ /^items\./ or ($colsource eq 'items')
+            ||@$filters[5]||@$filters[6]||@$filters[7]||@$filters[8]);
         
-        $strcalc .= " group by $linefield, $colfield order by $lineorder,$colorder";
-        ($debug) and warn "". $strcalc;
-        my $dbcalc = $dbh->prepare($strcalc);
-        $dbcalc->execute;
-#      warn "filling table";
-        my ($emptycol,$emptyrow); 
-        while (my ($row, $col, $value) = $dbcalc->fetchrow) {
-                ($debug) and warn "filling table $row / $col / $value ";
-                               if ($col eq undef) {
-                       $emptycol = 1; 
-                       $col = "zzEMPTY" ;
-                               }
-                               if ($row eq undef) {
-                                       $emptyrow = 1;
-                       $row = "zzEMPTY"; 
-                }
-                $table{$row}->{$col}+=$value;
-                $table{$row}->{totalrow}+=$value;
-                $grantotal += $value;
-        }
-        push @loopcol,{coltitle => "NULL", coltitle_display => 'NULL'} if ($emptycol);
-        push @loopline,{rowtitle => "NULL", rowtitle_display => 'NULL'} if ($emptyrow);
-
-        foreach my $row (@loopline) {
-                my @loopcell;
-                #@loopcol ensures the order for columns is common with column titles
-                # and the number matches the number of columns
-                foreach my $col ( @loopcol ) {
-                        my $value =$table{($row->{rowtitle} eq "NULL")?"zzEMPTY":$row->{rowtitle}}->{($col->{coltitle} eq "NULL")?"zzEMPTY":$col->{coltitle}};
-                        push @loopcell, {value => $value  } ;
-                }
-                push @looprow, { 'rowtitle' => ($row->{rowtitle} eq "NULL")?"zzEMPTY":$row->{rowtitle},
-                                                               'rowtitle_display' => ($row->{rowtitle_display} eq "NULL")?"NULL":$row->{rowtitle_display},
-                                'loopcell' => \@loopcell,
-                                'totalrow' => $table{($row->{rowtitle} eq "NULL")?"zzEMPTY":$row->{rowtitle}}->{totalrow}
-                                                };
-        }
-#      warn "footer processing";
-        for my $col ( @loopcol ) {
-                my $total=0;
-                foreach my $row ( @looprow ) {
-                        $total += $table{($row->{rowtitle} eq "NULL")?"zzEMPTY":$row->{rowtitle}}->{($col->{coltitle} eq "NULL")?"zzEMPTY":$col->{coltitle}};
+       $strcalc .= "WHERE 1=1 ";
+       @$filters = map {defined($_) and s/\*/%/g; $_} @$filters;
+       $strcalc .= " AND statistics.datetime > '"       . @$filters[0] ."'" if (@$filters[0] );
+       $strcalc .= " AND statistics.datetime < '"       . @$filters[1] ."'" if (@$filters[1] );
+       $strcalc .= " AND borrowers.categorycode LIKE '" . @$filters[2] ."'" if (@$filters[2] );
+       $strcalc .= " AND statistics.itemtype LIKE '"    . @$filters[3] ."'" if (@$filters[3] );
+       $strcalc .= " AND statistics.branch LIKE '"      . @$filters[4] ."'" if (@$filters[4] );
+       $strcalc .= " AND items.ccode LIKE '"            . @$filters[5] ."'" if (@$filters[5] );
+       $strcalc .= " AND items.location LIKE '"         . @$filters[6] ."'" if (@$filters[6] );
+       $strcalc .= " AND items.itemcallnumber >='"      . @$filters[7] ."'" if (@$filters[7] );
+       $strcalc .= " AND items.itemcallnumber <'"       . @$filters[8] ."'" if (@$filters[8] );
+       $strcalc .= " AND borrowers.sort1 LIKE '"        . @$filters[9] ."'" if (@$filters[9] );
+       $strcalc .= " AND borrowers.sort2 LIKE '"        . @$filters[10]."'" if (@$filters[10]);
+       $strcalc .= " AND dayname(datetime) LIKE '"      . $daysel      ."'" if ($daysel  );
+       $strcalc .= " AND monthname(datetime) LIKE '"    . $monthsel    ."'" if ($monthsel);
+       $strcalc .= " AND statistics.type LIKE '"        . $type        ."'" if ($type    );
+
+       $strcalc .= " GROUP BY $linefield, $colfield order by $lineorder,$colorder";
+       ($debug) and warn $strcalc;
+       my $dbcalc = $dbh->prepare($strcalc);
+       push @loopfilter, {crit=>'SQL =', sql=>1, filter=>$strcalc};
+       $dbcalc->execute;
+       my ($emptycol,$emptyrow); 
+       while (my ($row, $col, $value) = $dbcalc->fetchrow) {
+               ($debug) and warn "filling table $row / $col / $value ";
+               unless (defined $col) {
+                       $emptycol = 1; 
+                       $col = "zzEMPTY" ;
+               }
+               unless (defined $row) {
+                       $emptyrow = 1;
+                       $row = "zzEMPTY"; 
+               }
+               $table{$row}->{$col}     += $value;
+               $table{$row}->{totalrow} += $value;
+               $grantotal += $value;
+       }
+       push @loopcol, {coltitle => "NULL", coltitle_display => 'NULL'} if ($emptycol);
+       push @loopline,{rowtitle => "NULL", rowtitle_display => 'NULL'} if ($emptyrow);
+
+       foreach my $row (@loopline) {
+               my @loopcell;
+               #@loopcol ensures the order for columns is common with column titles
+               # and the number matches the number of columns
+               foreach my $col (@loopcol) {
+                       my $value = $table{null_to_zzempty($row->{rowtitle})}->{null_to_zzempty($col->{coltitle})};
+                       push @loopcell, {value => $value};
+               }
+               my $rowtitle = ($row->{rowtitle} eq "NULL") ? "zzEMPTY" : $row->{rowtitle};
+               push @looprow, {
+                       'rowtitle_display' => $row->{rowtitle_display},
+                       'rowtitle' => $rowtitle,
+                       'loopcell' => \@loopcell,
+                       'totalrow' => $table{$rowtitle}->{totalrow}
+               };
+       }
+       for my $col ( @loopcol ) {
+               my $total = 0;
+               foreach my $row (@looprow) {
+                       $total += $table{null_to_zzempty($row->{rowtitle})}->{null_to_zzempty($col->{coltitle})};
                        $debug and warn "value added ".$table{$row->{rowtitle}}->{$col->{coltitle}}. "for line ".$row->{rowtitle};
-                }
-#              warn "summ for column ".$col->{coltitle}."  = ".$total;
-                push @loopfooter, {'totalcol' => $total};
-        }
-                        
-
-        # the header of the table
-        $globalline{loopfilter}=\@loopfilter;
-        # the core of the table
-        $globalline{looprow} = \@looprow;
-        $globalline{loopcol} = \@loopcol;
-#      # the foot (totals by borrower type)
-        $globalline{loopfooter} = \@loopfooter;
-        $globalline{total}= $grantotal;
-        $globalline{line} = $line;
-        $globalline{column} = $column;
-        push @mainloop,\%globalline;
-        return \@mainloop;
+               }
+               push @loopfooter, {'totalcol' => $total};
+       }
+
+       # the header of the table
+       $globalline{loopfilter}=\@loopfilter;
+       # the core of the table
+       $globalline{looprow} = \@looprow;
+       $globalline{loopcol} = \@loopcol;
+       #       # the foot (totals by borrower type)
+       $globalline{loopfooter} = \@loopfooter;
+       $globalline{total}  = $grantotal;
+       $globalline{line}   = $line;
+       $globalline{column} = $column;
+       return [(\%globalline)];
+}
+
+sub null_to_zzempty ($) {
+       my $string = shift;
+       defined($string)    or  return 'zzEMPTY';
+       ($string eq "NULL") and return 'zzEMPTY';
+       return $string;         # else return the valid value
 }
 
 1;