--- loncom/interface/loncoursedata.pm 2003/03/28 15:19:35 1.64 +++ loncom/interface/loncoursedata.pm 2003/10/01 21:41:47 1.81.2.1 @@ -1,6 +1,6 @@ # The LearningOnline Network with CAPA # -# $Id: loncoursedata.pm,v 1.64 2003/03/28 15:19:35 matthew Exp $ +# $Id: loncoursedata.pm,v 1.81.2.1 2003/10/01 21:41:47 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -104,11 +104,15 @@ sub get_sequence_assessment_data { my $fn=$ENV{'request.course.fn'}; ## ## use navmaps - my $navmap = Apache::lonnavmaps::navmap->new(Apache->request,$fn.".db", + my $navmap = Apache::lonnavmaps::navmap->new($fn.".db", $fn."_parms.db",1,0); if (!defined($navmap)) { return 'Can not open Coursemap'; } + # We explicity grab the top level map because I am not sure we + # are pulling it from the iterator. + my $top_level_map = $navmap->getById('0.0'); + # my $iterator = $navmap->getIterator(undef, undef, undef, 1); my $curRes = $iterator->next(); # Top level sequence ## @@ -118,8 +122,9 @@ sub get_sequence_assessment_data { ## resources. This means we have to start out with something to look ## at. my $title = $ENV{'course.'.$ENV{'request.course.id'}.'.description'}; - my $symb = 'top'; - my $src = 'not applicable'; + my $symb = $top_level_map->symb(); + my $src = $top_level_map->src(); + my $randompick = $top_level_map->randompick(); # my @Sequences; my @Assessments; @@ -130,29 +135,43 @@ sub get_sequence_assessment_data { type => 'container', num_assess => 0, num_assess_parts => 0, - contents => [], }; + contents => [], + randompick => $randompick, + }; push (@Sequences,$top); push (@Nested_Sequences, $top); # # We need to keep track of which sequences contain homework problems # + my $previous_too; my $previous; - $curRes = $iterator->next(); # BEGIN_MAP - $curRes = $iterator->next(); # The first item in the top level map. while (scalar(@Nested_Sequences)) { + $previous_too = $previous; $previous = $curRes; $curRes = $iterator->next(); my $currentmap = $Nested_Sequences[-1]; # Last one on the stack if ($curRes == $iterator->BEGIN_MAP()) { + if (! ref($previous)) { + $previous = $previous_too; + } + if (! ref($previous)) { + next; + } # get the map itself, instead of BEGIN_MAP $title = $previous->title(); $symb = $previous->symb(); $src = $previous->src(); + # pick up the filename if there is no title available + if (! defined($title) || $title eq '') { + ($title) = ($src=~/\/([^\/]*)$/); + } + $randompick = $previous->randompick(); my $newmap = { title => $title, src => $src, symb => $symb, type => 'container', num_assess => 0, + randompick => $randompick, contents => [], }; push (@{$currentmap->{'contents'}},$newmap); # this is permanent @@ -211,6 +230,39 @@ sub LoadDiscussion { return \%Discuss; } +################################################ +################################################ + +=pod + +=item &GetUserName(username,userdomain) + +Returns a hash with the following entries: + 'firstname', 'middlename', 'lastname', 'generation', and 'fullname' + + 'fullname' is the result of &Apache::loncoursedata::ProcessFullName. + +=cut + +################################################ +################################################ +sub GetUserName { + my ($username,$userdomain) = @_; + $username = $ENV{'user.name'} if (! defined($username)); + $userdomain = $ENV{'user.domain'} if (! defined($username)); + my %userenv = &Apache::lonnet::get('environment', + ['firstname','middlename','lastname','generation'], + $userdomain,$username); + $userenv{'fullname'} = &ProcessFullName($userenv{'lastname'}, + $userenv{'generation'}, + $userenv{'firstname'}, + $userenv{'middlename'}); + return %userenv; +} + +################################################ +################################################ + =pod =item &ProcessFullName() @@ -221,6 +273,8 @@ is Lastname generation, firstname middle =cut +################################################ +################################################ sub ProcessFullName { my ($lastname, $generation, $firstname, $middlename)=@_; my $Str = ''; @@ -422,6 +476,13 @@ sub init_dbs { my $courseid = shift; &setup_table_names($courseid); # + # Drop any of the existing tables + foreach my $table ($symb_table,$part_table,$student_table, + $updatetime_table,$performance_table, + $parameters_table) { + &Apache::lonmysql::drop_table($table); + } + # # Note - changes to this table must be reflected in the code that # stores the data (calls &Apache::lonmysql::store_row with this table # id @@ -494,6 +555,9 @@ sub init_dbs { { name => 'part_id', type => 'MEDIUMINT UNSIGNED', restrictions => 'NOT NULL' }, + { name => 'part', + type => 'VARCHAR(100)', + restrictions => 'NOT NULL'}, { name => 'solved', type => 'TINYTEXT' }, { name => 'tries', @@ -581,6 +645,36 @@ sub init_dbs { =pod +=item &delete_caches() + +=cut + +################################################ +################################################ +sub delete_caches { + my $courseid = shift; + $courseid = $ENV{'request.course.id'} if (! defined($courseid)); + # + &setup_table_names($courseid); + # + my $dbh = &Apache::lonmysql::get_dbh(); + foreach my $table ($symb_table,$part_table,$student_table, + $updatetime_table,$performance_table, + $parameters_table ){ + my $command = 'DROP TABLE '.$table.';'; + $dbh->do($command); + if ($dbh->err) { + &Apache::lonnet::logthis($command.' resulted in error: '.$dbh->errstr); + } + } + return; +} + +################################################ +################################################ + +=pod + =item &get_part_id() Get the MySQL id of a problem part string. @@ -826,7 +920,7 @@ sub update_student_data { $sname.':'.$sdom.' in course '.$courseid. ':'.$tmp[0]); $returnstatus = 'error getting data'; - return $returnstatus; + return ($returnstatus,undef); } if (scalar(@tmp) < 1) { return ('no data',undef); @@ -850,7 +944,7 @@ sub update_student_data { my $num_parameters = 0; my $store_performance_command = 'INSERT INTO '.$performance_table. ' VALUES '."\n"; - return 'error' if (! defined($dbh)); + return ('error',undef) if (! defined($dbh)); while (my ($current_symb,$param_hash) = each(%student_data)) { # # make sure the symb is set up properly @@ -862,7 +956,8 @@ sub update_student_data { if ($parameter !~ /(timestamp|resource\.(.*)\.(solved|tries|awarded|award|awarddetail|previous))/) { $newstring = "('".join("','", $symb_id,$student_id, - $parameter,$value)."'),\n"; + $parameter)."',". + $dbh->quote($value)."),\n"; $num_parameters ++; if ($newstring !~ /''/) { $store_parameters_command .= $newstring; @@ -881,12 +976,12 @@ sub update_student_data { my $awarddetail = $param_hash->{'resource.'.$part.'.awarddetail'}; my $timestamp = $param_hash->{'timestamp'}; # - $solved = '' if (! defined($awarded)); + $solved = '' if (! defined($solved)); $tries = '' if (! defined($tries)); $awarded = '' if (! defined($awarded)); $award = '' if (! defined($award)); $awarddetail = '' if (! defined($awarddetail)); - $newstring = "('".join("','",$symb_id,$student_id,$part_id, + $newstring = "('".join("','",$symb_id,$student_id,$part_id,$part, $solved,$tries,$awarded,$award, $awarddetail,$timestamp)."'),\n"; $store_performance_command .= $newstring; @@ -903,14 +998,14 @@ sub update_student_data { &Apache::lonnet::logthis(' bigass insert error:'.$dbh->errstr()); &Apache::lonnet::logthis('command = '.$store_parameters_command); $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 $returnstatus,\%student_data; + return ($returnstatus,\%student_data); } $elapsed += Time::HiRes::time - $start; # @@ -966,7 +1061,7 @@ sub ensure_current_data { !$found_student || !$found_part || !$found_performance || !$found_parameters) { if (&init_dbs($courseid)) { - return 'error'; + return ('error',undef); } } # @@ -1030,21 +1125,21 @@ sub get_student_data_from_performance_ca # my $dbh = &Apache::lonmysql::get_dbh(); my $request = "SELECT ". - "d.symb,c.part,a.solved,a.tries,a.awarded,a.award,a.awarddetail,". + "d.symb,a.part,a.solved,a.tries,a.awarded,a.award,a.awarddetail,". "a.timestamp "; if (defined($student)) { $request .= "FROM $student_table AS b ". "LEFT JOIN $performance_table AS a ON b.student_id=a.student_id ". - "LEFT JOIN $part_table AS c ON c.part_id = a.part_id ". +# "LEFT JOIN $part_table AS c ON c.part_id = a.part_id ". "LEFT JOIN $symb_table AS d ON d.symb_id = a.symb_id ". "WHERE student='$student'"; if (defined($symb) && $symb ne '') { - $request .= " AND d.symb='".$dbh->quote($symb)."'"; + $request .= " AND d.symb=".$dbh->quote($symb); } } elsif (defined($symb) && $symb ne '') { $request .= "FROM $symb_table as d ". "LEFT JOIN $performance_table AS a ON d.symb_id=a.symb_id ". - "LEFT JOIN $part_table AS c ON c.part_id = a.part_id ". +# "LEFT JOIN $part_table AS c ON c.part_id = a.part_id ". "LEFT JOIN $student_table AS b ON b.student_id = a.student_id ". "WHERE symb='".$dbh->quote($symb)."'"; } @@ -1070,6 +1165,36 @@ sub get_student_data_from_performance_ca $studentdata->{$symb}->{$base.'.awarddetail'} = $awarddetail; $studentdata->{$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 '') { + $studentdata = $studentdata->{$symb}; + } return $studentdata; } @@ -1119,10 +1244,24 @@ sub get_current_state { return () if (! defined($sname) || ! defined($sdom)); # my ($status,$data) = &ensure_current_data($sname,$sdom,$courseid); - # - if (defined($data)) { +# &Apache::lonnet::logthis +# ('sname = '.$sname. +# ' domain = '.$sdom. +# ' status = '.$status. +# ' data is '.(defined($data)?'defined':'undefined')); +# while (my ($symb,$hash) = each(%$data)) { +# &Apache::lonnet::logthis($symb."\n----------------------------------"); +# while (my ($key,$value) = each (%$hash)) { +# &Apache::lonnet::logthis(" ".$key." = ".$value); +# } +# } + # + if (defined($data) && defined($symb) && ref($data->{$symb})) { + return %{$data->{$symb}}; + } elsif (defined($data) && ! defined($symb) && ref($data)) { return %$data; - } elsif ($status eq 'no data') { + } + if ($status eq 'no data') { return (); } else { if ($status ne 'okay' && $status ne '') { @@ -1163,27 +1302,31 @@ Each hash must contain at least the 'use =back -Outputs: See the code for up to date information. +Outputs: See the code for up to date information. A hash reference is +returned. The hash has the following keys defined: =over 4 -=item $num The number of students attempting the problem - -=item $tries The total number of tries for the students - -=item $mod The maximum number of tries taken +=item num_students The number of students attempting the problem + +=item tries The total number of tries for the students + +=item max_tries The maximum number of tries taken + +=item mean_tries The average number of tries + +=item num_solved The number of students able to solve the problem + +=item num_override The number of students whose answer is 'correct_by_override' + +=item deg_of_diff The degree of difficulty of the problem + +=item std_tries The standard deviation of the number of tries + +=item skew_tries The skew of the number of tries -=item $mean The average number of tries - -=item $Solved The number of students able to solve the problem - -=item $solved The number of students whose answer is 'correct_by_override' - -=item $DegOfDiff The degree of difficulty of the problem - -=item $STD The standard deviation of the number of tries - -=item $SKEW The skew of the number of tries +=item per_wrong The number of students attempting the problem who were not +able to answer it correctly. =back @@ -1247,17 +1390,47 @@ sub get_problem_statistics { $solved = 0 if (! defined($solved)); # my $DegOfDiff = 'nan'; - $DegOfDiff = 1-($Solved + $solved)/$tries if ($tries>0); + $DegOfDiff = 1-($Solved)/$tries if ($tries>0); my $SKEW = 'nan'; + my $wrongpercent = 0; if ($num > 0) { ($SKEW) = &execute_SQL_request($dbh,'SELECT SQRT(SUM('. 'POWER(tries - '.$STD.',3)'. '))/'.$num.' FROM '.$stats_table); + $wrongpercent=int(10*100*($num-$Solved+$solved)/$num)/10; } # $dbh->do('DROP TABLE '.$stats_table); # May return an error - return ($num,$tries,$mod,$mean,$Solved,$solved,$DegOfDiff,$STD,$SKEW); + # + # Store in metadata + # + if ($num) { + my %storestats=(); + + my $urlres=(split(/\_\_\_/,$symb))[2]; + + $storestats{$courseid.'___'.$urlres.'___timestamp'}=time; + $storestats{$courseid.'___'.$urlres.'___stdno'}=$num; + $storestats{$courseid.'___'.$urlres.'___avetries'}=$mean; + $storestats{$courseid.'___'.$urlres.'___difficulty'}=$DegOfDiff; + + $urlres=~/^(\w+)\/(\w+)/; + &Apache::lonnet::put('nohist_resevaldata',\%storestats,$1,$2); + } + # + # Return result + # + return { num_students => $num, + tries => $tries, + max_tries => $mod, + mean_tries => $mean, + std_tries => $STD, + skew_tries => $SKEW, + num_solved => $Solved, + num_override => $solved, + per_wrong => $wrongpercent, + deg_of_diff => $DegOfDiff }; } sub execute_SQL_request {