--- loncom/interface/statistics/lonstudentsubmissions.pm	2005/03/17 18:50:06	1.39
+++ loncom/interface/statistics/lonstudentsubmissions.pm	2005/04/07 06:56:24	1.40
@@ -1,6 +1,6 @@
 # The LearningOnline Network with CAPA
 #
-# $Id: lonstudentsubmissions.pm,v 1.39 2005/03/17 18:50:06 matthew Exp $
+# $Id: lonstudentsubmissions.pm,v 1.40 2005/04/07 06:56:24 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -27,7 +27,7 @@
 package Apache::lonstudentsubmissions;
 
 use strict;
-use Apache::lonnet();
+use Apache::lonnet;
 use Apache::loncommon();
 use Apache::lonhtmlcommon();
 use Apache::loncoursedata();
@@ -71,8 +71,8 @@ sub BuildStudentSubmissionsPage {
                                    '<h3>'.&mt('Loading student data').'</h3>');
     $r->rflush();
     #
-    if (exists($ENV{'form.problemchoice'}) && 
-        ! exists($ENV{'form.SelectAnother'})) {
+    if (exists($env{'form.problemchoice'}) && 
+        ! exists($env{'form.SelectAnother'})) {
         foreach my $button (@SubmitButtons) {
             if ($button->{'name'} eq 'break') {
                 $r->print("<br />\n");
@@ -120,14 +120,14 @@ sub BuildStudentSubmissionsPage {
                 my $resource = $Problems[0];
                 $r->print('<h1>'.$resource->title.'</h1>');
                 $r->print('<h3>'.$resource->src.'</h3>');
-                if ($ENV{'form.renderprob'} eq 'true') {
+                if ($env{'form.renderprob'} eq 'true') {
                     $r->print(&Apache::lonstathelpers::render_resource($resource));
                     $r->rflush();
                 }
             }
-            if ($ENV{'form.output'} eq 'excel') {
+            if ($env{'form.output'} eq 'excel') {
                 &prepare_excel_output($r,\@Problems,\@Students);
-            } elsif ($ENV{'form.output'} eq 'csv') {
+            } elsif ($env{'form.output'} eq 'csv') {
                 &prepare_csv_output($r,\@Problems,\@Students);
             } else {
                 &prepare_html_output($r,\@Problems,\@Students);
@@ -154,10 +154,10 @@ sub BuildStudentSubmissionsPage {
 ##
 sub get_extra_response_headers {
     my @extra_resp_headers;
-    if ($ENV{'form.correctans'} eq 'true') {
+    if ($env{'form.correctans'} eq 'true') {
         push(@extra_resp_headers,'Correct');
     } 
-    if ($ENV{'form.prob_status'} eq 'true') {
+    if ($env{'form.prob_status'} eq 'true') {
         push(@extra_resp_headers,'Award Detail'); 
         push(@extra_resp_headers,'Time');
         push(@extra_resp_headers,'Attempt');
@@ -350,7 +350,7 @@ sub prepare_html_output {
                         $maxrow = scalar(@$results);
                     }
                     for (my $j=scalar(@$results)-1;$j>=0;$j--) {
-                        if ($ENV{'form.all_sub'} ne 'true') {
+                        if ($env{'form.all_sub'} ne 'true') {
                             next if ($j ne scalar(@$results)-1);
                         }
                         my $response = &hashify_response($results->[$j],
@@ -430,7 +430,7 @@ sub prepare_html_output {
 sub hashify_response {
     my ($response,$prob,$student,$partid,$respid) =@_;
     my $resp_hash = {};
-    if ($ENV{'form.correctans'} eq 'true') {
+    if ($env{'form.correctans'} eq 'true') {
         $resp_hash->{'Correct'} = 
             &Apache::lonstathelpers::get_student_answer
             ($prob,$student->{'username'},$student->{'domain'},
@@ -636,7 +636,7 @@ sub prepare_excel_output {
     # Add headers to the worksheet
     my $rows_output = 0;
     $worksheet->write($rows_output++,0,
-                    $ENV{'course.'.$ENV{'request.course.id'}.'.description'},
+                    $env{'course.'.$env{'request.course.id'}.'.description'},
                       $format->{'h1'});
     $rows_output++;
     my $cols_output = 0;
@@ -725,7 +725,7 @@ sub prepare_excel_output {
                     my $response_start_col = $start_col{$prob->symb}->{$partid}->{$respid};
                     for (my $j=scalar(@$results)-1;$j>=0;$j--) {
                         $cols_output = $response_start_col;
-                        if ($ENV{'form.all_sub'} ne 'true') {
+                        if ($env{'form.all_sub'} ne 'true') {
                             next if ($j ne scalar(@$results)-1);
                         }
                         my $response = &hashify_response($results->[$j],
@@ -878,7 +878,7 @@ sub prepare_csv_output {
     # Open a file
     my $outputfile;
     my $filename = '/prtspool/'.
-        $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
+        $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
             time.'_'.rand(1000000000).'.csv';
     unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) {
         $r->log_error("Couldn't open $filename for output $!");
@@ -960,7 +960,7 @@ sub prepare_csv_output {
                         $results = [];
                     }
                     for (my $j=0; $j<scalar(@$results);$j++) {
-                        if ($ENV{'form.all_sub'} ne 'true') {
+                        if ($env{'form.all_sub'} ne 'true') {
                             next if ($j != 0);
                         }
                         my $idx = scalar(@$results) - $j - 1;
@@ -1029,7 +1029,7 @@ sub CreateInterface {
     my $output_selector = $/.'<select name="output">'.$/;
     foreach ('HTML','Excel','CSV') {
         $output_selector .= '    <option value="'.lc($_).'"';
-        if ($ENV{'form.output'} eq lc($_)) {
+        if ($env{'form.output'} eq lc($_)) {
             $output_selector .= ' selected ';
         }
         $output_selector .='>'.&mt($_).'</option>'.$/;
@@ -1058,30 +1058,30 @@ sub CreateInterface {
     #
     # Render problem checkbox
     my $prob_checkbox = '<input type="checkbox" name="renderprob" ';
-    if (exists($ENV{'form.renderprob'}) && $ENV{'form.renderprob'} eq 'true') {
+    if (exists($env{'form.renderprob'}) && $env{'form.renderprob'} eq 'true') {
         $prob_checkbox .= 'checked ';
     }
     $prob_checkbox .= 'value="true" />';
     #
     # Compute correct answers checkbox
     my $ans_checkbox = '<input type="checkbox" name="correctans" ';
-    if (exists($ENV{'form.correctans'}) && $ENV{'form.correctans'} eq 'true') {
+    if (exists($env{'form.correctans'}) && $env{'form.correctans'} eq 'true') {
         $ans_checkbox .= 'checked ';
     }
     $ans_checkbox .= 'value="true" />';
     #
     # Show all submissions checkbox
     my $all_sub_checkbox = '<input type="checkbox" name="all_sub" ';
-    if (exists($ENV{'form.all_sub'}) && 
-        $ENV{'form.all_sub'} eq 'true') {
+    if (exists($env{'form.all_sub'}) && 
+        $env{'form.all_sub'} eq 'true') {
         $all_sub_checkbox .= 'checked ';
     }
     $all_sub_checkbox.= 'value="true" />';
     #
     # problem status checkbox
     my $prob_status_checkbox = '<input type="checkbox" name="prob_status" ';
-    if (exists($ENV{'form.prob_status'}) && 
-        $ENV{'form.prob_status'} eq 'true') {
+    if (exists($env{'form.prob_status'}) && 
+        $env{'form.prob_status'} eq 'true') {
         $prob_status_checkbox .= 'checked ';
     }
     $prob_status_checkbox .= 'value="true" />';