--- loncom/interface/Attic/lonspreadsheet.pm	2001/03/05 21:26:29	1.39
+++ loncom/interface/Attic/lonspreadsheet.pm	2001/03/13 15:50:47	1.44
@@ -4,7 +4,7 @@
 # 11/11,11/15,11/27,12/04,12/05,12/06,12/07,
 # 12/08,12/09,12/11,12/12,12/15,12/16,12/18,12/19,12/30,
 # 01/01/01,02/01,03/01,19/01,20/01,22/01,
-# 03/05 Gerd Kortemeyer
+# 03/05,03/08,03/10,03/12,03/13 Gerd Kortemeyer
 
 package Apache::lonspreadsheet;
             
@@ -18,6 +18,12 @@ use GDBM_File;
 use HTML::TokeParser;
 
 #
+# Caches for previously calculated spreadsheets
+#
+
+my %oldsheets;
+
+#
 # Cache for stores of an individual user
 #
 
@@ -48,25 +54,6 @@ my %parmhash;
 my $includedir;
 my $tmpdir;
 
-
-sub mdeb {
-    my $msg=shift;
-    my $mem='';
-    {
-	my $mfh=Apache::File->new('/proc/'.$$.'/status');
-        my $line;
-        while ($line=<$mfh>) {
-            my ($name,$value)=split(/\:/,$line);
-	    if ($name eq 'VmSize') { $mem=$value; }
-        }
-        $mfh->close();
-    }
-    print $msg.$mem."<br>\n";
-}
-
-
-
-
 # =============================================================================
 # ===================================== Implements an instance of a spreadsheet
 
@@ -336,7 +323,7 @@ sub sett {
                     $t{$lb}=~s/\#/$trow/g;
                     $t{$lb}=~s/\.\.+/\,/g;
                     $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$v\{\'$2\'\}/g;
-                    $t{$lb}=~s/(^|[^\"\'])\[([\w\.]+)\]/$1\$c\{\'$2\'\}/g;
+                    $t{$lb}=~s/(^|[^\"\'])\[(\w+)\]/$1\$c\{\'$2\'\}/g;
                 }
 	      }
             } keys %f;
@@ -345,7 +332,8 @@ sub sett {
     } keys %f;
     map {
 	if (($f{$_}) && ($_!~/template\_/)) {
-            if ($_=~/^$pattern/) {
+            my $matches=($_=~/^$pattern(\d+)/);
+            if  (($matches) && ($1)) {
 	        unless ($f{$_}=~/^\!/) {
 		    $t{$_}=$c{$_};
                 }
@@ -1122,9 +1110,10 @@ sub updatestudentassesssheet {
                           my $display=
 			      &Apache::lonnet::metadata($srcf,$key.'.display');
                           unless ($display) {
-                              $display=
+                              $display.=
 			         &Apache::lonnet::metadata($srcf,$key.'.name');
                           }
+                          $display.='<br>'.$key;
                           $allkeys{$key}=$display;
 		       }
                    } split(/\,/,&Apache::lonnet::metadata($srcf,'keys'));
@@ -1218,16 +1207,21 @@ sub loadstudent {
     map {
 	if ($_=~/^A(\d+)/) {
 	   my $row=$1;
-           unless ($f{$_}=~/^\!/) {
+           unless (($f{$_}=~/^\!/) || ($row==0)) {
 	      @assessdata=&exportsheet(&getuname($safeeval),
                                        &getudom($safeeval),
                                        'assesscalc',$f{$_});
               my $index=0;
               map {
                   if ($assessdata[$index]) {
-		     $c{$_.$row}=$assessdata[$index];
-                     unless ($_ eq 'A') { 
-			 $f{$_.$row}='import';
+		     my $col=$_;
+		     if ($assessdata[$index]=~/\D/) {
+                         $c{$col.$row}="'".$assessdata[$index]."'";
+ 		     } else {
+		         $c{$col.$row}=$assessdata[$index];
+		     }
+                     unless ($col eq 'A') { 
+			 $f{$col.$row}='import';
                      }
 		  }
                   $index++;
@@ -1264,14 +1258,14 @@ sub loadcourse {
       '<form name=popremain>'+
       '<input type=text size=35 name=remaining value=Starting></form>'+
       '</body></html>');
-    popwin.document.close;
+    popwin.document.close();
 </script>
 ENDPOP
     $r->rflush();
     map {
 	if ($_=~/^A(\d+)/) {
 	   my $row=$1;
-           unless ($f{$_}=~/^\!/) {
+           unless (($f{$_}=~/^\!/)  || ($row==0)) {
 	      my @studentdata=&exportsheet(split(/\:/,$f{$_}),
                                            'studentcalc');
               undef %userrdatas;
@@ -1284,9 +1278,14 @@ ENDPOP
               my $index=0;
               map {
                   if ($studentdata[$index]) {
-		     $c{$_.$row}=$studentdata[$index];
-                     unless ($_ eq 'A') { 
-			 $f{$_.$row}='import';
+		     my $col=$_;
+		     if ($studentdata[$index]=~/\D/) {
+                         $c{$col.$row}="'".$studentdata[$index]."'";
+ 		     } else {
+		         $c{$col.$row}=$studentdata[$index];
+		     }
+                     unless ($col eq 'A') { 
+			 $f{$col.$row}='import';
                      }
 		  }
                   $index++;
@@ -1297,7 +1296,7 @@ ENDPOP
     } keys %f;
     &setformulas($safeeval,%f);
     &setconstants($safeeval,%c);
-    $r->print('<script>popwin.close</script>');
+    $r->print('<script>popwin.close()</script>');
     $r->rflush(); 
 }
 
@@ -1408,13 +1407,16 @@ sub loadassessment {
 	if ($_=~/^A/) {
             unless ($f{$_}=~/^\!/) {
   	       if ($f{$_}=~/^parameter/) {
-	          $c{$_}=&parmval($f{$_},$safeeval);
+                  my $val=&parmval($f{$_},$safeeval);
+                  $c{$_}=$val;
+                  $c{$f{$_}}=$val;
 	       } else {
 		  my $key=$f{$_};
+                  my $ckey=$key;
                   $key=~s/^stores\_/resource\./;
                   $key=~s/\_/\./;
  	          $c{$_}=$returnhash{$key};
-                  $c{$key}=$returnhash{$key};
+                  $c{$ckey}=$returnhash{$key};
 	       }
 	   }
         }
@@ -1486,14 +1488,94 @@ sub loadrows {
 #
 
 sub exportsheet {
- 
-    my ($uname,$udom,$stype,$usymb,$fn)=@_;
+ my ($uname,$udom,$stype,$usymb,$fn)=@_;
+ my @exportarr=();
+#
+# Check if cached
+#
+ my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
+ my $found='';
+
+ if ($oldsheets{$key}) {
+     map {
+         my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
+         if ($name eq $fn) {
+	     $found=$value;
+         }
+     } split(/\_\_\_\&\_\_\_/,$oldsheets{$key});
+ }
+
+ if ($found) {
+#
+# Return what was cached
+#
+     @exportarr=split(/\_\_\_\;\_\_\_/,$found);
+
+ } else {
+#
+# Not cached
+# 
     my $thissheet=&makenewsheet($uname,$udom,$stype,$usymb);
     &readsheet($thissheet,$fn);
     &updatesheet($thissheet);
     &loadrows($thissheet);
-    &calcsheet($thissheet);
-    return &exportdata($thissheet);
+    &calcsheet($thissheet); 
+    @exportarr=&exportdata($thissheet);
+#
+# Store now
+#
+    my $cid=$ENV{'request.course.id'}; 
+    my $current=&Apache::lonnet::reply('get:'.
+                                     $ENV{'course.'.$cid.'.domain'}.':'.
+                                     $ENV{'course.'.$cid.'.num'}.
+				     ':nohist_calculatedsheets:'.
+                                     &Apache::lonnet::escape($key),
+                                     $ENV{'course.'.$cid.'.home'});
+    my %currentlystored=();
+    unless ($current=~/^error\:/) {
+       map {
+           my ($name,$value)=split(/\_\_\_\=\_\_\_/,$_);
+           $currentlystored{$name}=$value;
+       } split(/\_\_\_\&\_\_\_/,&Apache::lonnet::unescape($current));
+    }
+    $currentlystored{$fn}=join('___;___',@exportarr);
+
+    my $newstore='';
+    map {
+        if ($newstore) { $newstore.='___&___'; }
+        $newstore.=$_.'___=___'.$currentlystored{$_};
+    } keys %currentlystored;
+    &Apache::lonnet::reply('put:'.
+                         $ENV{'course.'.$cid.'.domain'}.':'.
+                         $ENV{'course.'.$cid.'.num'}.
+			 ':nohist_calculatedsheets:'.
+                         &Apache::lonnet::escape($key).'='.
+			 &Apache::lonnet::escape($newstore),
+                         $ENV{'course.'.$cid.'.home'});
+ }
+ return @exportarr;
+}
+
+# ===================================================== Calculated sheets cache
+#
+# Load all previously cached spreadsheets for this course
+#
+
+sub cachedsheets {
+    my $cid=$ENV{'request.course.id'};
+    my $reply=&Apache::lonnet::reply('dump:'.
+				     $ENV{'course.'.$cid.'.domain'}.':'.
+                                     $ENV{'course.'.$cid.'.num'}.
+				     ':nohist_calculatedsheets',
+                                     $ENV{'course.'.$cid.'.home'});
+    undef %oldsheets;
+    unless ($reply=~/^error\:/) {
+	map {
+            my ($name,$value)=split(/\=/,$_);
+            $oldsheets{&Apache::lonnet::unescape($name)}
+                      =&Apache::lonnet::unescape($value);
+        } split(/\&/,$reply);
+    }
 }
 
 # ================================================================ Main handler
@@ -1664,10 +1746,13 @@ ENDSCRIPT
 
     $r->print(&hiddenfield('ufn',&getfilename($asheet)));
 
+# ----------------------------------------------------------- Get cached sheets
+
+    &cachedsheets();
 
 # ----------------------------------------------------- Update sheet, load rows
 
-    $r->print("Loaded sheet, updating rows ...<br>\n");
+    $r->print("Loaded sheet(s), updating rows ...<br>\n");
     $r->rflush();
 
     &updatesheet($asheet);
@@ -1699,19 +1784,3 @@ ENDSCRIPT
 
 1;
 __END__
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