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Diff for /loncom/interface/loncoursedata.pm between versions 1.93 and 1.99

version 1.93, 2003/09/30 15:34:34 version 1.99, 2003/10/02 17:07:41
Line 1072  sub get_student { Line 1072  sub get_student {
   
 =pod  =pod
   
   =item &clear_internal_caches()
   
   Causes the internal caches used in get_student_id, get_student,
   get_symb_id, get_symb, get_part_id, and get_part to be undef'd.
   
   Needs to be called before the first operation with the MySQL database
   for a given Apache request.
   
   =cut
   
   ################################################
   ################################################
   sub clear_internal_caches {
       $have_read_part_table = 0;
       undef(%ids_by_part);
       undef(%parts_by_id);
       $have_read_symb_table = 0;
       undef(%ids_by_symb);
       undef(%symbs_by_id);
       $have_read_student_table = 0;
       undef(%ids_by_student);
       undef(%students_by_id);
   }
   
   
   ################################################
   ################################################
   
   =pod
   
 =item &update_full_student_data($sname,$sdom,$courseid)  =item &update_full_student_data($sname,$sdom,$courseid)
   
 Does a lonnet::dump on a student to populate the courses tables.  Does a lonnet::dump on a student to populate the courses tables.
Line 1149  sub update_full_student_data { Line 1179  sub update_full_student_data {
             # We can deal with 'timestamp' right away              # We can deal with 'timestamp' right away
             my @timestamp_storage = ($symb_id,$student_id,              my @timestamp_storage = ($symb_id,$student_id,
                                      $transaction,$value);                                       $transaction,$value);
             my $store_command = 'INSERT INTO '.$fulldump_timestamp_table.              my $store_command = 'INSERT IGNORE INTO '.$fulldump_timestamp_table.
                 " VALUES ('".join("','",@timestamp_storage)."');";                  " VALUES ('".join("','",@timestamp_storage)."');";
             $dbh->do($store_command);              $dbh->do($store_command);
             if ($dbh->err()) {              if ($dbh->err()) {
Line 1213  sub update_full_student_data { Line 1243  sub update_full_student_data {
     }      }
     ##      ##
     ## Store the part data      ## Store the part data
     my $store_command = 'INSERT INTO '.$fulldump_part_table.      my $store_command = 'INSERT IGNORE INTO '.$fulldump_part_table.
         ' VALUES '."\n";          ' VALUES '."\n";
     my $store_rows = 0;      my $store_rows = 0;
     while (my ($symb_id,$hash1) = each (%$partdata)) {      while (my ($symb_id,$hash1) = each (%$partdata)) {
Line 1241  sub update_full_student_data { Line 1271  sub update_full_student_data {
     }      }
     ##      ##
     ## Store the response data      ## Store the response data
     $store_command = 'INSERT INTO '.$fulldump_response_table.      $store_command = 'INSERT IGNORE INTO '.$fulldump_response_table.
         ' VALUES '."\n";          ' VALUES '."\n";
     $store_rows = 0;      $store_rows = 0;
     while (my ($symb_id,$hash1) = each (%$respdata)) {      while (my ($symb_id,$hash1) = each (%$respdata)) {
Line 1353  sub update_student_data { Line 1383  sub update_student_data {
     my @Results = &store_student_data($sname,$sdom,$courseid,\%student_data);      my @Results = &store_student_data($sname,$sdom,$courseid,\%student_data);
     #      #
     # Set the students update time      # Set the students update time
     &Apache::lonmysql::replace_row($studentdata_table,      if ($Results[0] eq 'okay') {
           &Apache::lonmysql::replace_row($studentdata_table,
                          [$student_id,$time_of_retrieval,undef,undef,undef]);                           [$student_id,$time_of_retrieval,undef,undef,undef]);
       }
     #      #
     return @Results;      return @Results;
 }  }
Line 1379  sub store_student_data { Line 1411  sub store_student_data {
     my $starttime = Time::HiRes::time;      my $starttime = Time::HiRes::time;
     my $elapsed = 0;      my $elapsed = 0;
     my $rows_stored;      my $rows_stored;
     my $store_parameters_command  = 'INSERT INTO '.$parameters_table.      my $store_parameters_command  = 'INSERT IGNORE INTO '.$parameters_table.
         ' VALUES '."\n";          ' VALUES '."\n";
     my $num_parameters = 0;      my $num_parameters = 0;
     my $store_performance_command = 'INSERT INTO '.$performance_table.      my $store_performance_command = 'INSERT IGNORE INTO '.$performance_table.
         ' VALUES '."\n";          ' VALUES '."\n";
     return ('error',undef) if (! defined($dbh));      return ('error',undef) if (! defined($dbh));
     while (my ($current_symb,$param_hash) = each(%{$student_data})) {      while (my ($current_symb,$param_hash) = each(%{$student_data})) {
Line 1433  sub store_student_data { Line 1465  sub store_student_data {
     chop $store_performance_command;      chop $store_performance_command;
     chop $store_performance_command;      chop $store_performance_command;
     my $start = Time::HiRes::time;      my $start = Time::HiRes::time;
       $dbh->do($store_performance_command);
       if ($dbh->err()) {
           &Apache::lonnet::logthis(' bigass insert error:'.$dbh->errstr());
           &Apache::lonnet::logthis('command = '.$store_performance_command);
           $returnstatus = 'error: unable to insert performance into database';
           return ($returnstatus,$student_data);
       }
     $dbh->do($store_parameters_command) if ($num_parameters>0);      $dbh->do($store_parameters_command) if ($num_parameters>0);
     if ($dbh->err()) {      if ($dbh->err()) {
         &Apache::lonnet::logthis(' bigass insert error:'.$dbh->errstr());          &Apache::lonnet::logthis(' bigass insert error:'.$dbh->errstr());
Line 1442  sub store_student_data { Line 1481  sub store_student_data {
         $returnstatus = 'error: unable to insert parameters into database';          $returnstatus = 'error: unable to insert parameters into database';
         return ($returnstatus,$student_data);          return ($returnstatus,$student_data);
     }      }
     $dbh->do($store_performance_command);  
     if ($dbh->err()) {  
         &Apache::lonnet::logthis(' bigass insert error:'.$dbh->errstr());  
         &Apache::lonnet::logthis('command = '.$store_performance_command);  
         $returnstatus = 'error: unable to insert performance into database';  
         return ($returnstatus,$student_data);  
     }  
     $elapsed += Time::HiRes::time - $start;      $elapsed += Time::HiRes::time - $start;
     return ($returnstatus,$student_data);      return ($returnstatus,$student_data);
 }  }
Line 1678  sub get_student_data_from_performance_ca Line 1710  sub get_student_data_from_performance_ca
         $studentdata->{$symb}->{$base.'.awarddetail'} = $awarddetail;          $studentdata->{$symb}->{$base.'.awarddetail'} = $awarddetail;
         $studentdata->{$symb}->{'timestamp'} = $time if (defined($time) && $time ne '');          $studentdata->{$symb}->{'timestamp'} = $time if (defined($time) && $time ne '');
     }      }
       ## Get misc parameters
       $request = 'SELECT c.symb,a.parameter,a.value '.
           "FROM $student_table AS b ".
           "LEFT JOIN $parameters_table AS a ON b.student_id=a.student_id ".
           "LEFT JOIN $symb_table AS c ON c.symb_id = a.symb_id ".
           "WHERE student='$student'";
       if (defined($symb) && $symb ne '') {
           $request .= " AND c.symb=".$dbh->quote($symb);
       }
       $sth = $dbh->prepare($request);
       $sth->execute();
       if ($sth->err()) {
           &Apache::lonnet::logthis("Unable to execute MySQL request:");
           &Apache::lonnet::logthis("\n".$request."\n");
           &Apache::lonnet::logthis("error is:".$sth->errstr());
           if (defined($symb) && $symb ne '') {
               $studentdata = $studentdata->{$symb};
           }
           return $studentdata;
       }
       #
       foreach my $row (@{$sth->fetchall_arrayref}) {
           $rows_retrieved++;
           my ($symb,$parameter,$value) = (@$row);
           $studentdata->{$symb}->{$parameter}  = $value;
       }
       #
     if (defined($symb) && $symb ne '') {      if (defined($symb) && $symb ne '') {
         $studentdata = $studentdata->{$symb};          $studentdata = $studentdata->{$symb};
     }      }
Removed from v.1.93  
changed lines
  Added in v.1.99

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