--- loncom/metadata_database/searchcat.pl	2003/06/19 19:34:27	1.33
+++ loncom/metadata_database/searchcat.pl	2003/08/08 12:38:00	1.37
@@ -2,7 +2,7 @@
 # The LearningOnline Network
 # searchcat.pl "Search Catalog" batch script
 #
-# $Id: searchcat.pl,v 1.33 2003/06/19 19:34:27 matthew Exp $
+# $Id: searchcat.pl,v 1.37 2003/08/08 12:38:00 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -76,6 +76,13 @@ use POSIX qw(strftime mktime);
 
 my @metalist;
 
+$simplestatus='';
+
+sub writesimple {
+    open(SMP,'>/home/httpd/html/lon-status/mysql.txt');
+    print SMP $simplestatus."\n";
+    close(SMP);
+}
 
 # ----------------------------------------------------- Un-Escape Special Chars
 
@@ -104,75 +111,75 @@ sub dynamicmeta {
     my ($adomain,$aauthor)=($url=~/^(\w+)\/(\w+)\//);
     my $prodir=&propath($adomain,$aauthor);
     if ((tie(%evaldata,'GDBM_File',
-             $prodir.'/nohist_resevaldata.db',&GDBM_READER(),0640)) &&
+            $prodir.'/nohist_resevaldata.db',&GDBM_READER(),0640)) &&
         (tie(%newevaldata,'GDBM_File',
-             $prodir.'/nohist_new_resevaldata.db',&GDBM_WRCREAT(),0640))) {
-        my %sum=();
-        my %cnt=();
-        my %listitems=('count'        => 'add',
-                       'course'       => 'add',
-                       'avetries'     => 'avg',
-                       'stdno'        => 'add',
-                       'difficulty'   => 'avg',
-                       'clear'        => 'avg',
-                       'technical'    => 'avg',
-                       'helpful'      => 'avg',
-                       'correct'      => 'avg',
-                       'depth'        => 'avg',
-                       'comments'     => 'app',
-                       'usage'        => 'cnt'
-                       );
-        my $regexp=$url;
-        $regexp=~s/(\W)/\\$1/g;
-        $regexp='___'.$regexp.'___([a-z]+)$';
-        foreach (keys %evaldata) {
-            my $key=&unescape($_);
-            if ($key=~/$regexp/) {
-                my $ctype=$1;
-                if (defined($cnt{$ctype})) { 
-                    $cnt{$ctype}++; 
-                } else { 
-                    $cnt{$ctype}=1; 
-                }
-                unless ($listitems{$ctype} eq 'app') {
-                    if (defined($sum{$ctype})) {
-                        $sum{$ctype}+=$evaldata{$_};
-                    } else {
-                        $sum{$ctype}=$evaldata{$_};
-                    }
-                } else {
-                    if (defined($sum{$ctype})) {
-                        if ($evaldata{$_}) {
-                            $sum{$ctype}.='<hr>'.$evaldata{$_};
-                        }
-                    } else {
-                        $sum{$ctype}=''.$evaldata{$_};
-                    }
-                }
-                if ($ctype ne 'count') {
-                    $newevaldata{$_}=$evaldata{$_};
-                }
+            $prodir.'/nohist_new_resevaldata.db',&GDBM_WRCREAT(),0640))) {
+       my %sum=();
+       my %cnt=();
+       my %listitems=('count'        => 'add',
+                      'course'       => 'add',
+                      'avetries'     => 'avg',
+                      'stdno'        => 'add',
+                      'difficulty'   => 'avg',
+                      'clear'        => 'avg',
+                      'technical'    => 'avg',
+                      'helpful'      => 'avg',
+                      'correct'      => 'avg',
+                      'depth'        => 'avg',
+                      'comments'     => 'app',
+                      'usage'        => 'cnt'
+                      );
+       my $regexp=$url;
+       $regexp=~s/(\W)/\\$1/g;
+       $regexp='___'.$regexp.'___([a-z]+)$';
+       foreach (keys %evaldata) {
+	 my $key=&unescape($_);
+	 if ($key=~/$regexp/) {
+	    my $ctype=$1;
+            if (defined($cnt{$ctype})) { 
+               $cnt{$ctype}++; 
+            } else { 
+               $cnt{$ctype}=1; 
             }
-        }
-        foreach (keys %cnt) {
-            if ($listitems{$_} eq 'avg') {
-                $returnhash{$_}=int(($sum{$_}/$cnt{$_})*100.0+0.5)/100.0;
-            } elsif ($listitems{$_} eq 'cnt') {
-                $returnhash{$_}=$cnt{$_};
+            unless ($listitems{$ctype} eq 'app') {
+               if (defined($sum{$ctype})) {
+                  $sum{$ctype}+=$evaldata{$_};
+   	       } else {
+                  $sum{$ctype}=$evaldata{$_};
+	       }
             } else {
-                $returnhash{$_}=$sum{$_};
-            }
-        }
-        if ($returnhash{'count'}) {
-            my $newkey=$$.'_'.time.'_searchcat___'.&escape($url).'___count';
-            $newevaldata{$newkey}=$returnhash{'count'};
-        }
-        untie(%evaldata);
-        untie(%newevaldata);
-    }
-    return %returnhash;
+               if (defined($sum{$ctype})) {
+                  if ($evaldata{$_}) {
+                     $sum{$ctype}.='<hr>'.$evaldata{$_};
+	          }
+ 	       } else {
+	             $sum{$ctype}=''.$evaldata{$_};
+	       }
+	    }
+	    if ($ctype ne 'count') {
+	       $newevaldata{$_}=$evaldata{$_};
+	   }
+	 }
+      }
+      foreach (keys %cnt) {
+         if ($listitems{$_} eq 'avg') {
+	     $returnhash{$_}=int(($sum{$_}/$cnt{$_})*100.0+0.5)/100.0;
+         } elsif ($listitems{$_} eq 'cnt') {
+             $returnhash{$_}=$cnt{$_};
+         } else {
+             $returnhash{$_}=$sum{$_};
+         }
+     }
+     if ($returnhash{'count'}) {
+         my $newkey=$$.'_'.time.'_searchcat___'.&escape($url).'___count';
+         $newevaldata{$newkey}=$returnhash{'count'};
+     }
+     untie(%evaldata);
+     untie(%newevaldata);
+   }
+   return %returnhash;
 }
-
+  
 # ----------------- Code to enable 'find' subroutine listing of the .meta files
 require "find.pl";
 sub wanted {
@@ -207,6 +214,7 @@ if ($wwwid!=$<) {
 
 open(LOG,'>'.$perlvar{'lonDaemons'}.'/logs/searchcat.log');
 print LOG '==== Searchcat Run '.localtime()."====\n\n";
+$simplestatus='time='.time.'&';
 my $dbh;
 # ------------------------------------- Make sure that database can be accessed
 {
@@ -214,8 +222,11 @@ my $dbh;
 	    $dbh = DBI->connect("DBI:mysql:loncapa","www",$perlvar{'lonSqlAccess'},{ RaiseError =>0,PrintError=>0})
 	    ) { 
 	print LOG "Cannot connect to database!\n";
+	$simplestatus.='mysql=defunct';
+	&writesimple();
 	exit;
     }
+
     my $make_metadata_table = "CREATE TABLE IF NOT EXISTS metadata (".
         "title TEXT, author TEXT, subject TEXT, url TEXT, keywords TEXT, ".
         "version TEXT, notes TEXT, abstract TEXT, mime TEXT, language TEXT, ".
@@ -237,6 +248,30 @@ my @homeusers = grep {
     &ishome("$perlvar{'lonDocRoot'}/res/$perlvar{'lonDefDomain'}/$_")
     } grep {!/^\.\.?$/} readdir(RESOURCES);
 closedir RESOURCES;
+
+#
+# Create the statement handlers we need
+my $delete_sth = $dbh->prepare
+    ("DELETE FROM metadata WHERE url LIKE BINARY ?");
+
+my $insert_sth = $dbh->prepare
+    ("INSERT INTO metadata VALUES (".
+     "?,".   # title
+     "?,".   # author
+     "?,".   # subject
+     "?,".   # m2???
+     "?,".   # version
+     "?,".   # current
+     "?,".   # notes
+     "?,".   # abstract
+     "?,".   # mime
+     "?,".   # language
+     "?,".   # creationdate
+     "?,".   # revisiondate
+     "?,".   # owner
+     "?)"    # copyright
+     );
+
 foreach my $user (@homeusers) {
     print LOG "\n=== User: ".$user."\n\n";
     # Remove left-over db-files from potentially crashed searchcat run
@@ -255,30 +290,25 @@ foreach my $user (@homeusers) {
         my $m2='/res/'.&declutter($m);
         $m2=~s/\.meta$//;
         &dynamicmeta($m2);
-        my $q2="select * from metadata where url like binary '$m2'";
-        my $sth = $dbh->prepare($q2);
-        $sth->execute();
-        my $r1=$sth->fetchall_arrayref;
-        if (@$r1) {
-            $sth=$dbh->prepare("delete from metadata where url like binary '$m2'");
-            $sth->execute();
-        }
-        $sth=$dbh->prepare('insert into metadata values ('.
-                           '"'.delete($ref->{'title'}).'"'.','.
-                           '"'.delete($ref->{'author'}).'"'.','.
-                           '"'.delete($ref->{'subject'}).'"'.','.
-                           '"'.$m2.'"'.','.
-                           '"'.delete($ref->{'keywords'}).'"'.','.
-                           '"'.'current'.'"'.','.
-                           '"'.delete($ref->{'notes'}).'"'.','.
-                           '"'.delete($ref->{'abstract'}).'"'.','.
-                           '"'.delete($ref->{'mime'}).'"'.','.
-                           '"'.delete($ref->{'language'}).'"'.','.
-                           '"'.sqltime(delete($ref->{'creationdate'})).'"'.','.
-                           '"'.sqltime(delete($ref->{'lastrevisiondate'})).'"'.','.
-                           '"'.delete($ref->{'owner'}).'"'.','.
-                           '"'.delete($ref->{'copyright'}).'"'.')');
-        $sth->execute();
+        $delete_sth->execute($m2);
+        $insert_sth->execute($ref->{'title'},
+                             $ref->{'author'},
+                             $ref->{'subject'},
+                             $m2,
+                             $ref->{'keywords'},
+                             'current',
+                             $ref->{'notes'},
+                             $ref->{'abstract'},
+                             $ref->{'mime'},
+                             $ref->{'language'},
+                             sqltime($ref->{'creationdate'}),
+                             sqltime($ref->{'lastrevisiondate'}),
+                             $ref->{'owner'},
+                             $ref->{'copyright'});
+#        if ($dbh->err()) {
+#            print STDERR "Error:".$dbh->errstr()."\n";
+#        }
+        $ref = undef;
     }
     
     # --------------------------------------------------- Clean up database
@@ -286,13 +316,33 @@ foreach my $user (@homeusers) {
     # ... not yet implemented
         
     # ------------------------------------------- Copy over the new db-files
-    system('mv '.$prodir.'/nohist_new_resevaldata.db '.
-           $prodir.'/nohist_resevaldata.db');
+    #
+    # Check the size of nohist_new_resevaldata.db compared to 
+    # nohist_resevaldata.db
+    my @stat_result = stat($prodir.'/nohist_new_resevaldata.db');
+    my $new_size = $stat_result[7];
+    @stat_result = stat($prodir.'/nohist_resevaldata.db');
+    my $old_size = $stat_result[7];
+    if ($new_size/$old_size > 0.15 ) {
+        system('mv '.$prodir.'/nohist_new_resevaldata.db '.
+               $prodir.'/nohist_resevaldata.db');
+    } else {
+        print LOG "Size of '$user' old nohist_reseval: $old_size ".
+            "Size of new: $new_size.  Not overwriting.\n";
+        my $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
+        my $subj="LON: $perlvar{'lonHostID'} searchcat.pl $user reseval ".
+            "modification error.";
+        system("echo ".
+               "'See /home/httpd/perl/logs/searchcat.txt for information.' ".
+               "| mailto $emailto -s '$subj' > /dev/null");
+    }
+        
 }
 # --------------------------------------------------- Close database connection
 $dbh->disconnect;
 print LOG "\n==== Searchcat completed ".localtime()." ====\n";
 close(LOG);
+&writesimple();
 exit 0;