--- loncom/debugging_tools/dump_db.pl	2003/09/04 14:32:46	1.3
+++ loncom/debugging_tools/dump_db.pl	2006/06/19 09:36:22	1.6
@@ -4,7 +4,7 @@
 #
 # dump_db.pl - dump a GDBM database to standard output, unescaping if asked to.
 #
-# $Id: dump_db.pl,v 1.3 2003/09/04 14:32:46 matthew Exp $
+# $Id: dump_db.pl,v 1.6 2006/06/19 09:36:22 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -32,6 +32,10 @@
 use strict;
 use Getopt::Long;
 use GDBM_File;
+use Data::Dumper;
+use Storable qw(thaw);
+use lib '/home/httpd/lib/perl/';
+use LONCAPA;
 
 #
 # Options
@@ -65,30 +69,26 @@ END
 #
 # Loop through ARGV getting files.
 while (my $fname = shift) {
-    my %db;
-    if (! tie(%db,'GDBM_File',$fname,&GDBM_READER,0640)) {
+    my $dbref=&LONCAPA::locking_hash_tie($fname,&GDBM_READER());
+
+    if (!$dbref) {
         warn "Unable to tie to $fname";
         next;
     }
-    while (my ($key,$value) = each(%db)) {
+    while (my ($key,$value) = each(%$dbref)) {
+        if ($value =~ s/^__FROZEN__//) {
+            $value = thaw(&unescape($value));
+        }
         if ($unesc) {
             $key = &unescape($key);
-            $value = &unescape($value);
+            $value = &unescape($value) if (! ref($value));
         }
-        if ($localize_times) {
-            if ($value =~ /^\s*([0-9]{10,10})\s*$/) {
-                $value = $value.' [ '.localtime($1).' ]';
-            }
+        if ($localize_times && ! ref($value)) {
+            $value =~ s/([0-9]{10,10})/localtime($1)/ge;
         }
-        print "$key = $value\n";
+        print "$key = ".(ref($value)?Dumper($value):$value)."\n";
     }
-    untie %db;
+    &LONCAPA::locking_hash_untie($dbref);
 }
 exit;
 
-######################################
-sub unescape {
-    my $str=shift;
-    $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
-    return $str;
-}