version 1.72, 2002/10/11 14:56:43
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version 1.100, 2002/11/08 19:10:58
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Line 45 use strict;
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Line 45 use strict;
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use Apache::Constants qw(:common :http); |
use Apache::Constants qw(:common :http); |
use Apache::lonnet(); |
use Apache::lonnet(); |
use Apache::loncommon(); |
use Apache::loncommon(); |
use HTML::TokeParser; |
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use GDBM_File; |
use GDBM_File; |
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use POSIX qw (floor strftime); |
# -------------------------------------------------------------- Module Globals |
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my %hash; |
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my @rows; |
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# |
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# These cache hashes need to be independent of user, resource and course |
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# (user and course can/should be in the keys) |
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# |
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my %courserdatas; |
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my %userrdatas; |
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# |
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# These global hashes are dependent on user, course and resource, |
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# and need to be initialized every time when a sheet is calculated |
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# |
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my %courseopt; |
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my %useropt; |
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my %parmhash; |
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# This parameter keeps track of whether obtaining the user's information |
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# failed, which the colorizer in astatus can use |
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my $networkFailedFlag = 0; |
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# ------------------------------------------------------------------ Euclid gcd |
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sub euclid { |
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my ($e,$f)=@_; |
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my $a; my $b; my $r; |
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if ($e>$f) { $b=$e; $r=$f; } else { $r=$e; $b=$f; } |
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while ($r!=0) { |
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$a=$b; $b=$r; |
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$r=$a%$b; |
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} |
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return $b; |
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} |
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# --------------------------------------------------------------------- Parmval |
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# -------------------------------------------- Figure out a cascading parameter |
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# |
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# For this function to work |
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# |
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# * parmhash needs to be tied |
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# * courseopt and useropt need to be initialized for this user and course |
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# |
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sub parmval { |
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my ($what,$symb)=@_; |
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my $cid=$ENV{'request.course.id'}; |
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my $csec=$ENV{'request.course.sec'}; |
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my $uname=$ENV{'user.name'}; |
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my $udom=$ENV{'user.domain'}; |
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unless ($symb) { return ''; } |
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my $result=''; |
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my ($mapname,$id,$fn)=split(/\_\_\_/,$symb); |
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# ----------------------------------------------------- Cascading lookup scheme |
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my $rwhat=$what; |
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$what=~s/^parameter\_//; |
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$what=~s/\_/\./; |
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my $symbparm=$symb.'.'.$what; |
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my $mapparm=$mapname.'___(all).'.$what; |
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my $usercourseprefix=$uname.'_'.$udom.'_'.$cid; |
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my $seclevel= $usercourseprefix.'.['.$csec.'].'.$what; |
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my $seclevelr=$usercourseprefix.'.['.$csec.'].'.$symbparm; |
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my $seclevelm=$usercourseprefix.'.['.$csec.'].'.$mapparm; |
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my $courselevel= $usercourseprefix.'.'.$what; |
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my $courselevelr=$usercourseprefix.'.'.$symbparm; |
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my $courselevelm=$usercourseprefix.'.'.$mapparm; |
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# ---------------------------------------------------------- first, check user |
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if (defined($uname)) { |
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if (defined($useropt{$courselevelr})) { return $useropt{$courselevelr}; } |
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if (defined($useropt{$courselevelm})) { return $useropt{$courselevelm}; } |
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if (defined($useropt{$courselevel})) { return $useropt{$courselevel}; } |
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} |
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# ------------------------------------------------------- second, check course |
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if (defined($csec)) { |
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if (defined($courseopt{$seclevelr})) { return $courseopt{$seclevelr}; } |
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if (defined($courseopt{$seclevelm})) { return $courseopt{$seclevelm}; } |
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if (defined($courseopt{$seclevel})) { return $courseopt{$seclevel}; } |
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} |
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if (defined($courseopt{$courselevelr})) { return $courseopt{$courselevelr}; } |
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if (defined($courseopt{$courselevelm})) { return $courseopt{$courselevelm}; } |
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if (defined($courseopt{$courselevel})) { return $courseopt{$courselevel}; } |
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# ----------------------------------------------------- third, check map parms |
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my $thisparm=$parmhash{$symbparm}; |
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if (defined($thisparm)) { return $thisparm; } |
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# ----------------------------------------------------- fourth , check default |
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my $default=&Apache::lonnet::metadata($fn,$rwhat.'.default'); |
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if (defined($default)) { return $default} |
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# --------------------------------------------------- fifth , cascade up parts |
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my ($space,@qualifier)=split(/\./,$rwhat); |
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my $qualifier=join('.',@qualifier); |
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unless ($space eq '0') { |
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my ($part,$id)=split(/\_/,$space); |
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if ($id) { |
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my $partgeneral=&parmval($part.".$qualifier",$symb); |
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if (defined($partgeneral)) { return $partgeneral; } |
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} else { |
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my $resourcegeneral=&parmval("0.$qualifier",$symb); |
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if (defined($resourcegeneral)) { return $resourcegeneral; } |
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} |
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} |
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return ''; |
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} |
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# ------------------------------------------------------------- Find out status |
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# return codes |
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# tcode (timecode) |
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# 1: will open later |
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# 2: is open and not past due yet |
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# 3: is past due date |
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# 4: due in the next 24 hours |
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# |
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# code (curent solved status) |
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# 1: not attempted |
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# 2: attempted but wrong, or incorrect by instructor |
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# 3: solved or correct by instructor |
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# 4: partially correct (one or more parts correct) |
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# "excused" needs to be supported, but is not yet. |
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sub astatus { |
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my $rid=shift; |
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my $code=0; |
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my $ctext=''; |
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$rid=~/(\d+)\.(\d+)/; |
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my $symb=&Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'. |
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&Apache::lonnet::declutter($hash{'src_'.$rid}); |
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my %duedate=(); |
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my %opendate=(); |
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my %answerdate=(); |
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# need to always check part 0's open/due/answer status |
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foreach (sort(split(/\,/,&Apache::lonnet::metadata($hash{'src_'.$rid},'allpo\ssiblekeys')))) { |
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if ($_=~/^parameter\_(.*)\_opendate$/) { |
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my $part=$1; |
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$duedate{$part}=&parmval($part.'.duedate',$symb); |
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$opendate{$part}=&parmval($part.'.opendate',$symb); |
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$answerdate{$part}=&parmval($part.'.answerdate',$symb); |
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if (&parmval($part.'.opendate.type',$symb) eq 'date_interval') { |
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$opendate{$part}=$duedate{$part}-$opendate{$part}; |
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} |
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if (&parmval($part.'.answerdate.type',$symb) eq 'date_interval') { |
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$answerdate{$part}=$duedate{$part}+$answerdate{$part}; |
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} |
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} |
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} |
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my $now=time; |
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my $tcode=0; |
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my %returnhash=&Apache::lonnet::restore($symb); |
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foreach (sort(keys(%opendate))) { |
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my $duedate=$duedate{$_}; |
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my $opendate=$opendate{$_}; |
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my $answerdate=$answerdate{$_}; |
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my $preface=''; |
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unless ($_ eq '0') { $preface=' Part: '.$_.' '; } |
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if ($opendate) { |
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if ($now<$duedate || (!$duedate)) { |
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unless ($tcode==4) { $tcode=2; } |
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if ($duedate) { |
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$ctext.=$preface.'Due: '.localtime($duedate); |
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} else { |
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$ctext.=$preface.'No Due Date'; |
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} |
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if ($now<$opendate) { |
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unless ($tcode) { $tcode=1; } |
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$ctext.=$preface.'Open: '.localtime($opendate); |
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} |
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if ($duedate && $duedate-$now<86400) { |
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$tcode=4; |
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$ctext.=$preface.'Due: '.localtime($duedate); |
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} |
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} else { |
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unless (($tcode==4) || ($tcode eq 2)) { $tcode=3; } |
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if ($now<$answerdate) { |
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$ctext.='Answer: '.localtime($duedate); |
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} |
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} |
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} else { |
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unless (($tcode==2) || ($tcode==4)) { $tcode=1; } |
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} |
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my $status=$returnhash{'resource.'.$_.'.solved'}; |
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if ($status eq 'correct_by_student') { |
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if ($code==0||$code==3) { $code=3; } else { $code=4; } |
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$ctext.=' solved'; |
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} elsif ($status eq 'correct_by_override') { |
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if ($code==0||$code==3) { $code=3; } else { $code=4; } |
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$ctext.=' override'; |
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} elsif ($status eq 'incorrect_attempted') { |
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if ($code!=4 && $code!=3) { $code=2; } |
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if ($code==3) { $code=4; } |
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$ctext.=' ('. |
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($returnhash{'resource.'.$_.'.tries'}? |
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$returnhash{'resource.'.$_.'.tries'}:'0'); |
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my $numtries = &parmval($_.'.maxtries',$symb); |
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if ($numtries) { $ctext.='/'.$numtries.' tries'; } |
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$ctext.=')'; |
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} elsif ($status eq 'incorrect_by_override') { |
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if ($code!=4 && $code!=3) { $code=2; } |
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if ($code==3) { $code=4; } |
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$ctext.=' override'; |
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} elsif ($status eq 'excused') { |
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if ($code==0||$code==3) { $code=3; } else { $code=4; } |
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$ctext.=' excused'; |
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} else { |
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if ($code==0) { $code=1; } |
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} |
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} |
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return 'p'.$code.$tcode.'"'.$ctext.'"'; |
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} |
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sub addresource { |
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my ($resource,$sofar,$rid,$showtypes,$indent,$linkid)=@_; |
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if ($showtypes eq 'problems') { |
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if ($resource!~/\.(problem|exam|quiz|assess|survey|form)$/) { |
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return; |
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} |
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} |
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my $brepriv=&Apache::lonnet::allowed('bre',$resource); |
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if ($hash{'src_'.$rid}) { |
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if (($brepriv eq '2') || ($brepriv eq 'F')) { |
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my $pprefix=''; |
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if ($resource=~/\.(problem|exam|quiz|assess|survey|form)$/) { |
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$pprefix=&astatus($rid); |
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} |
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$$sofar++; |
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if ($indent) { $pprefix='i'.$indent.','.$pprefix; } |
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if ($linkid) { $pprefix='l'.$linkid.','.$pprefix; } |
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if (defined($rows[$$sofar])) { |
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$rows[$$sofar].='&'.$pprefix.$rid; |
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} else { |
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$rows[$$sofar]=$pprefix.$rid; |
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} |
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} |
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} |
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} |
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sub followlinks () { |
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my ($rid,$sofar,$beenhere,$further,$showtypes,$indent,$linkid)=@_; |
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my $mincond=1; |
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my $next=''; |
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foreach (split(/\,/,$hash{'to_'.$rid})) { |
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my $thiscond= |
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&Apache::lonnet::directcondval($hash{'condid_'.$hash{'undercond_'.$_}}); |
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if ($thiscond>=$mincond) { |
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if ($next) { |
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$next.=','.$_.':'.$thiscond; |
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} else { |
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$next=$_.':'.$thiscond; |
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} |
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if ($thiscond>$mincond) { $mincond=$thiscond; } |
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} |
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} |
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my $col=0; |
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&Apache::lonxml::debug("following links -$next-"); |
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foreach (split(/\,/,$next)) { |
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my ($nextlinkid,$condval)=split(/\:/,$_); |
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if ($condval>=$mincond) { |
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my $now=&tracetable($sofar,$hash{'goesto_'.$nextlinkid}, |
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$beenhere,$showtypes,$indent,$linkid); |
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if ($now>$further) { |
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if ($col>0) { |
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my $string; |
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for(my $i=0;$i<$col;$i++) { $string.='&'; } |
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for(my $i=$further+1;$now-1>$i;$i++) { |
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$rows[$i]=$string.$rows[$i]; |
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} |
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} |
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$further=$now; |
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} |
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} |
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$col++; |
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} |
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return $further; |
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} |
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# ------------------------------------------------------------ Build page table |
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sub tracetable { |
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my ($sofar,$rid,$beenhere,$showtypes,$indent,$linkid)=@_; |
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my $newshowtypes=$showtypes; |
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my $further=$sofar; |
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# $Apache::lonxml::debug=1; |
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&Apache::lonxml::debug("$rid ; $linkid ; $sofar ; $beenhere ; ".$hash{'src_'.$rid}); |
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if ($beenhere=~/\&$rid\&/) { return $further; } |
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$beenhere.=$rid.'&'; |
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if (defined($hash{'is_map_'.$rid})) { |
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$sofar++; |
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my $tprefix=''; |
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if ($hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}} |
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eq 'sequence') { |
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$tprefix='h'; |
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} elsif ($hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}} |
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eq 'page') { |
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$tprefix='j'; |
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if ($indent) { $tprefix='i'.$indent.','.$tprefix; } |
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if ($linkid) { $tprefix='l'.$linkid.','.$tprefix; } |
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$newshowtypes='problems'; |
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$indent++; |
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#if in a .page continue to link the encompising .page |
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if (!$linkid) { $linkid=$rid; } |
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} |
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if (defined($rows[$sofar])) { |
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$rows[$sofar].='&'.$tprefix.$rid; |
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} else { |
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$rows[$sofar]=$tprefix.$rid; |
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} |
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if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) && |
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(defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) { |
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my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}}; |
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$sofar=&tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}}, |
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'&'.$frid.'&',$newshowtypes,$indent,$linkid); |
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&addresource($hash{'src_'.$frid},\$sofar,$frid,$newshowtypes, |
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$indent,$linkid); |
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if ($tprefix =~ /j$/) { $indent--; $linkid=''; } |
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} |
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} else { |
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&addresource($hash{'src_'.$rid},\$sofar,$rid,$showtypes, |
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$indent,$linkid); |
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} |
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if (defined($hash{'to_'.$rid})) { |
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$further=&followlinks($rid,$sofar,$beenhere,$further,$showtypes, |
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$indent,$linkid); |
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} |
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return $further; |
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} |
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# ================================================================ Main Handler |
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sub handler { |
sub handler { |
my $r=shift; |
my $r = shift; |
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&Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING}); |
&Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING}); |
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if ($ENV{'form.jtest'} ne "1") |
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{ |
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return new_handle($r); |
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} |
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# ------------------------------------------- Set document type for header only |
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if ($r->header_only) { |
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if ($ENV{'browser.mathml'}) { |
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$r->content_type('text/xml'); |
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} else { |
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$r->content_type('text/html'); |
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} |
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$r->send_http_header; |
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return OK; |
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} |
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my $requrl=$r->uri; |
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my $hashtied; |
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# ----------------------------------------------------------------- Tie db file |
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my $fn; |
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if ($ENV{'request.course.fn'}) { |
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$fn=$ENV{'request.course.fn'}; |
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if (-e "$fn.db") { |
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if ((tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640)) && |
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(tie(%parmhash,'GDBM_File', |
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$ENV{'request.course.fn'}.'_parms.db', |
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&GDBM_READER(),0640))) { |
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$hashtied=1; |
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} |
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} |
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} |
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if (!$hashtied) { |
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$ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized"; |
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return HTTP_NOT_ACCEPTABLE; |
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} |
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# ------------------------------------------------------------------- Hash tied |
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if ($ENV{'browser.mathml'}) { |
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$r->content_type('text/xml'); |
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} else { |
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$r->content_type('text/html'); |
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} |
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&Apache::loncommon::no_cache($r); |
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$r->send_http_header; |
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my $firstres=$hash{'map_start_'. |
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&Apache::lonnet::clutter($ENV{'request.course.uri'})}; |
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my $lastres=$hash{'map_finish_'. |
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&Apache::lonnet::clutter($ENV{'request.course.uri'})}; |
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if (!(($firstres) && ($lastres))) { |
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$r->print('<html><body>Coursemap undefined.</body></html>'); |
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} else { |
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# ----------------------------------------------------------------- Render page |
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# -------------------------------------------------------------- Set parameters |
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# ---------------------------- initialize coursedata and userdata for this user |
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undef %courseopt; |
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undef %useropt; |
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my $uname=$ENV{'user.name'}; |
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my $udom=$ENV{'user.domain'}; |
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my $uhome=$ENV{'user.home'}; |
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my $cid=$ENV{'request.course.id'}; |
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my $chome=$ENV{'course.'.$cid.'.home'}; |
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my ($cdom,$cnum)=split(/\_/,$cid); |
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my $userprefix=$uname.'_'.$udom.'_'; |
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unless ($uhome eq 'no_host') { |
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# ------------------------------------------------- Get coursedata (if present) |
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unless ((time-$courserdatas{$cid.'.last_cache'})<240) { |
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my $reply=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum. |
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':resourcedata',$chome); |
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if ($reply!~/^error\:/) { |
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$courserdatas{$cid}=$reply; |
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$courserdatas{$cid.'.last_cache'}=time; |
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} |
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# check to see if network failed |
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elsif ( $reply=~/no.such.host/i || $reply=~/con.*lost/i ) |
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{ |
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$networkFailedFlag = 1; |
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} |
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} |
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foreach (split(/\&/,$courserdatas{$cid})) { |
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my ($name,$value)=split(/\=/,$_); |
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$courseopt{$userprefix.&Apache::lonnet::unescape($name)}= |
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&Apache::lonnet::unescape($value); |
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} |
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# --------------------------------------------------- Get userdata (if present) |
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unless ((time-$userrdatas{$uname.'___'.$udom.'.last_cache'})<240) { |
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my $reply=&Apache::lonnet::reply('dump:'.$udom.':'.$uname.':resourcedata',$uhome); |
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if ($reply!~/^error\:/) { |
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$userrdatas{$uname.'___'.$udom}=$reply; |
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$userrdatas{$uname.'___'.$udom.'.last_cache'}=time; |
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} |
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} |
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foreach (split(/\&/,$userrdatas{$uname.'___'.$udom})) { |
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my ($name,$value)=split(/\=/,$_); |
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$useropt{$userprefix.&Apache::lonnet::unescape($name)}= |
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&Apache::lonnet::unescape($value); |
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} |
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} |
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@rows=(); |
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&tracetable(0,$firstres,'&','',0); |
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# ------------------------------------------------------------------ Page parms |
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my $j; |
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my $i; |
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my $lcm=1; |
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my $contents=0; |
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# ---------------------------------------------- Go through table to get layout |
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for ($i=0;$i<=$#rows;$i++) { |
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if ($rows[$i]) { |
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&Apache::lonxml::debug("Row $i is:".$rows[$i]); |
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$contents++; |
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my @colcont=split(/\&/,$rows[$i]); |
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$lcm*=($#colcont+1)/euclid($lcm,($#colcont+1)); |
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} |
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} |
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unless ($contents) { |
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$r->print('<html><body>Empty Map.</body></html>'); |
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} else { |
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|
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# ------------------------------------------------------------------ Build page |
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|
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my $currenturl=$ENV{'form.postdata'}; |
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$currenturl=~s/^http\:\/\///; |
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$currenturl=~s/^[^\/]+//; |
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|
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# ---------------------------------------------------------------- Send headers |
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|
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my $date=localtime; |
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my $now=time; |
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# ----------------------------------------- Get email status and discussiontime |
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|
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my %emailstatus=&Apache::lonnet::dump('email_status'); |
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my $logouttime=$emailstatus{'logout'}; |
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my $courseleave=$emailstatus{'logout_'.$ENV{'request.course.id'}}; |
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my $lastcheck=($courseleave>$logouttime?$courseleave:$logouttime); |
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|
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my %discussiontimes=&Apache::lonnet::dump('discussiontimes', |
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$cdom,$cnum); |
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|
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my %feedback=(); |
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my %error=(); |
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foreach my $msgid (split(/\&/,&Apache::lonnet::reply('keys:'. |
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$ENV{'user.domain'}.':'. |
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$ENV{'user.name'}.':nohist_email', |
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$ENV{'user.home'}))) { |
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$msgid=&Apache::lonnet::unescape($msgid); |
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my $plain=&Apache::lonnet::unescape(&Apache::lonnet::unescape($msgid)); |
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if ($plain=~/(Error|Feedback) \[([^\]]+)\]/) { |
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my ($what,$url)=($1,$2); |
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my %status= |
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&Apache::lonnet::get('email_status',[$msgid]); |
|
if ($status{$msgid}=~/^error\:/) { |
|
$status{$msgid}=''; |
|
} |
|
|
|
if (($status{$msgid} eq 'new') || |
|
(!$status{$msgid})) { |
|
if ($what eq 'Error') { |
|
$error{$url}.=','.$msgid; |
|
} else { |
|
$feedback{$url}.=','.$msgid; |
|
} |
|
} |
|
} |
|
} |
|
# ----------------------------------------------------------- Start Page Output |
|
my $bodytagadd=''; |
|
$r->print( |
|
'<html><head><title>Navigate Course Map</title></head>'); |
|
if (($currenturl=~/^\/res/) && |
|
($currenturl!~/^\/res\/adm/)) { |
|
$bodytagadd='onLoad="window.location.hash='."'curloc'".'"'; |
|
} |
|
$r->print(&Apache::loncommon::bodytag('Navigate Course Map','', |
|
$bodytagadd)); |
|
$r->print('<script>window.focus();</script>'); |
|
my $desc=$ENV{'course.'.$ENV{'request.course.id'}.'.description'}; |
|
if (defined($desc)) { $r->print("<h2>$desc</h2>\n"); } |
|
$r->print("<h3>$date</h3>\n"); |
|
$r->rflush(); |
|
$r->print('<img src="/adm/lonMisc/chat.gif"> New discussion since '. |
|
localtime($lastcheck). |
|
'<br><img src="/adm/lonMisc/feedback.gif"> New message (click to open)<p>'); |
|
if (($currenturl=~/^\/res/) && |
|
($currenturl!~/^\/res\/adm/)) { |
|
$r->print('<a href="#curloc">Current Location</a><p>'); |
|
} |
|
|
|
# Handle a network error |
|
|
|
if ($networkFailedFlag) |
|
{ |
|
$r->print('<H2>LON-CAPA network failure.</H2>'."\n"); |
|
$r->print("<p>LON-CAPA's network is having difficulties, some problem" . |
|
" information, such as due dates, will not be available."); |
|
} |
|
# ----------------------------------------------------- The little content list |
|
for ($i=0;$i<=$#rows;$i++) { |
|
if ($rows[$i]) { |
|
my @colcont=split(/\&/,$rows[$i]); |
|
my $avespan=$lcm/($#colcont+1); |
|
for ($j=0;$j<=$#colcont;$j++) { |
|
my $rid=$colcont[$j]; |
|
if ($rid=~/^h(.+)/) { |
|
$rid=$1; |
|
$r->print(' <a href="#'. |
|
$rid.'">'.$hash{'title_'.$rid}. |
|
'</a><br>'); |
|
} |
|
} |
|
} |
|
} |
|
# ----------------------------------------------------------------- Start table |
|
$r->print('<hr><table cols="'.$lcm.'" border="0">'); |
|
for ($i=0;$i<=$#rows;$i++) { |
|
if ($rows[$i]) { |
|
$r->print("\n<tr>"); |
|
my @colcont=split(/\&/,$rows[$i]); |
|
my $avespan=$lcm/($#colcont+1); |
|
|
|
# for each item I wish to print on this row... |
|
for ($j=0;$j<=$#colcont;$j++) { |
|
my $indent;my $indentstr; |
|
my $linkid; |
|
my $rid=$colcont[$j]; |
|
$rid=~/(\d+)\.(\d+)$/; |
|
my $src= |
|
&Apache::lonnet::declutter($hash{'src_'.$1.'.'.$2}); |
|
my $symb= |
|
&Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'.$src; |
|
my $add='<td>'; |
|
my $adde='</td>'; |
|
my $hwk='<font color="#223322">'; |
|
my $hwke='</font>'; |
|
if ($rid=~/^l(\d+\.\d+),(.+)/) { $linkid=$1; $rid=$2; } |
|
if ($rid=~/^i(\d+),(.+)/) { $indent=$1; $rid=$2; } |
|
if ($rid=~/^h(.+)/) { |
|
$rid=$1; |
|
$add='<th bgcolor="#AAFF55"><a name="'.$rid.'">'; |
|
$adde='</th>'; |
|
if (($ENV{'user.adv'}) && |
|
($parmhash{$symb.'.0.parameter_randompick'})) { |
|
$adde=' (randomly select '. |
|
$parmhash{$symb.'.0.parameter_randompick'}. |
|
')</th>'; |
|
} |
|
} |
|
if ($rid=~/^j(.+)/) { $rid=$1; } |
|
if ($rid=~/^p(\d)(\d)\"([\w\: \(\)\/\,]*)\"(.+)/) { |
|
# sub astatus describes what code/tcode mean |
|
my $code=$1; |
|
my $tcode=$2; |
|
my $ctext=$3; |
|
$rid=$4; |
|
|
|
# will open later |
|
if ($tcode eq '1') { |
|
$add='<td bgcolor="#AAAAAA">'; |
|
} |
|
|
|
# solved/correct |
|
if ($code eq '3') { |
|
$add='<td bgcolor="#AAFFAA">'; |
|
} elsif ($code eq '4') { # partially correct |
|
$add='<td bgcolor="#E0FFAA">'; |
|
} else { |
|
# not attempted |
|
|
|
# we end up here on network failure, so pick a neutral |
|
# color if the network failed instead of bright red. |
|
if ( $networkFailedFlag ) |
|
{ |
|
$add = '<td bgcolor="#AAAAAA">'; |
|
} |
|
else |
|
{ |
|
$add='<td bgcolor="#FFAAAA">'; |
|
} |
|
|
|
if ($tcode eq '2') { # open, not past due |
|
$add='<td bgcolor="#FFFFAA">'; |
|
} |
|
|
|
if ($tcode eq '4') { # due in next 24 hours |
|
$add='<td bgcolor="#FFFF33">'; |
|
$adde='</td>'; |
|
} |
|
} |
|
$hwk='<font color="#888811"><b>'; |
|
$hwke='</b></font>'; |
|
if ($code eq '1') { |
|
$hwke='</b> ('.$ctext.')</font>'; |
|
} |
|
if ($code eq '2' || $code eq '4') { |
|
$hwk='<font color="#992222"><b>'; |
|
$hwke='</b> ('.$ctext.')</font>'; |
|
} |
|
if ($code eq '3') { |
|
$hwk='<font color="#229922"><b>'; |
|
$hwke='</b> ('.$ctext.')</font>'; |
|
} |
|
if ($networkFailedFlag) |
|
{ |
|
$hwke='</b> (status unavailable)</font>'; |
|
} |
|
} |
|
if ($rid && $hash{'src_'.$rid} eq $currenturl) { |
|
$add=$add.'<a name="curloc"></a>'. |
|
'<font color=red size=+2><b>> </b></font>'; |
|
$adde= |
|
'<font color=red size=+2><b> <</b></font>'.$adde; |
|
} |
|
if ($discussiontimes{$symb}>$lastcheck) { |
|
$adde= |
|
'<img border=0 src="/adm/lonMisc/chat.gif">'. |
|
$adde; |
|
} |
|
if ($error{$src}) { |
|
foreach (split(/\,/,$error{$src})) { |
|
if ($_) { |
|
$adde= |
|
' <a href="/adm/email?display='. |
|
&Apache::lonnet::escape($_). |
|
'"><img src="/adm/lonMisc/bomb.gif" border=0></a>' |
|
.$adde; |
|
} |
|
} |
|
} |
|
if ($feedback{$src}) { |
|
foreach (split(/\,/,$feedback{$src})) { |
|
if ($_) { |
|
$adde= |
|
' <a href="/adm/email?display='. |
|
&Apache::lonnet::escape($_). |
|
'"><img src="/adm/lonMisc/feedback.gif" border=0></a>' |
|
.$adde; |
|
} |
|
} |
|
} |
|
if ($indent) { |
|
my $is=" "; |
|
for(my $i=-1;$i<$indent;$i++) { $indentstr.=$is; } |
|
} |
|
if (!$linkid) { $linkid=$rid; } |
|
if ($hash{'randomout_'.$rid}) { |
|
$adde=' <i>(hidden)</i>'.$adde; |
|
} |
|
$r->print($add.$indentstr); |
|
if ($rid) { |
|
$r->print('<a href="'.$hash{'src_'.$linkid}. |
|
(($hash{'src_'.$linkid}=~/\?/)?'&':'?'). |
|
'symb='.&Apache::lonnet::escape($symb) |
|
.'">'. |
|
$hwk.$hash{'title_'.$rid}.$hwke.'</a>'); |
|
} |
|
$r->print($adde); |
|
} |
|
$r->print('</tr>'); |
|
} |
|
} |
|
$r->print("\n</table>"); |
|
$r->print('</body></html>'); |
|
# -------------------------------------------------------------------- End page |
|
} |
|
# ------------------------------------------------------------- End render page |
|
} |
|
# ------------------------------------------------------------------ Untie hash |
|
unless (untie(%hash)) { |
|
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
|
"Could not untie coursemap $fn (browse).</font>"); |
|
} |
|
unless (untie(%parmhash)) { |
|
&Apache::lonnet::logthis("<font color=blue>WARNING: ". |
|
"Could not untie parmhash (browse).</font>"); |
|
} |
|
return OK; |
|
} |
|
|
|
sub new_handle { |
|
my $r = shift; |
|
|
|
# Handle header-only request |
# Handle header-only request |
if ($r->header_only) { |
if ($r->header_only) { |
if ($ENV{'browser.mathml'}) { |
if ($ENV{'browser.mathml'}) { |
Line 820 sub new_handle {
|
Line 73 sub new_handle {
|
&Apache::loncommon::no_cache($r); |
&Apache::loncommon::no_cache($r); |
$r->send_http_header; |
$r->send_http_header; |
|
|
# Initialize the nav map |
# Create the nav map the nav map |
my $navmap = Apache::lonnavmaps::navmap->new( |
my $navmap = Apache::lonnavmaps::navmap->new( |
$ENV{"request.course.fn"}.".db", |
$ENV{"request.course.fn"}.".db", |
$ENV{"request.course.fn"}."_parms.db", 1); |
$ENV{"request.course.fn"}."_parms.db", 1, 1); |
|
|
|
|
if (!defined($navmap)) { |
if (!defined($navmap)) { |
Line 837 sub new_handle {
|
Line 90 sub new_handle {
|
'')); |
'')); |
$r->print('<script>window.focus();</script>'); |
$r->print('<script>window.focus();</script>'); |
my $desc=$ENV{'course.'.$ENV{'request.course.id'}.'.description'}; |
my $desc=$ENV{'course.'.$ENV{'request.course.id'}.'.description'}; |
if (defined($desc)) { $r->print("<h2>$desc</h2>\n"); } |
$r->print('<table border="0" cellpadding="2" cellspacing="0">'); |
my $date=localtime; |
my $date=localtime; |
$r->print("<h3>$date</h3>\n"); |
$r->print('<tr><td align="right" valign="bottom">Key: </td>'); |
$r->rflush(); |
|
if ($navmap->{LAST_CHECK}) { |
if ($navmap->{LAST_CHECK}) { |
$r->print('<img src="/adm/lonMisc/chat.gif"> New discussion since '. |
$r->print('<td align="center" valign="bottom"> '. |
timeToHumanString($navmap->{LAST_CHECK}). |
'<img src="/adm/lonMisc/chat.gif"> New discussion since '. |
'<br><img src="/adm/lonMisc/feedback.gif"> New message (click to open)<p>'); |
strftime("%A, %b %e at %I:%M %P", localtime($navmap->{LAST_CHECK})). |
|
'</td><td align="center" valign="bottom"> '. |
|
'<img src="/adm/lonMisc/feedback.gif"> New message (click to open)<p>'. |
|
'</td>'); |
|
} else { |
|
$r->print('<td align="center" valign="bottom"> '. |
|
'<img src="/adm/lonMisc/chat.gif"> Discussions</td><td align="center" valign="bottom">'. |
|
' <img src="/adm/lonMisc/feedback.gif"> New message (click to open)'. |
|
'</td>'); |
|
} |
|
$r->print('</tr></table>'); |
|
my $condition = 0; |
|
if ($ENV{'form.condition'}) { |
|
$condition = 1; |
|
} |
|
|
|
if ($condition) { |
|
$r->print('<a href="navmaps?condition=0&filter=">Close All Folders</a>'); |
} else { |
} else { |
$r->print('<img src="/adm/lonMisc/chat.gif"> Discussions'. |
$r->print('<a href="navmaps?condition=1&filter=">Open All Folders</a>'); |
'<br><img src="/adm/lonMisc/feedback.gif"> New message (click to open)<p>'); |
|
} |
} |
#if (($currenturl=~/^\/res/) && |
|
# ($currenturl!~/^\/res\/adm/)) { |
$r->print('<br> '); |
# $r->print('<a href="#curloc">Current Location</a><p>'); |
$r->rflush(); |
#} |
|
|
# Now that we've displayed some stuff to the user, init the navmap |
|
$navmap->init(); |
|
|
# Check that it's defined |
# Check that it's defined |
if (!($navmap->courseMapDefined())) { |
if (!($navmap->courseMapDefined())) { |
Line 880 sub new_handle {
|
Line 150 sub new_handle {
|
$res->NOTHING_SET => '' ); |
$res->NOTHING_SET => '' ); |
# And a special case in the nav map; what to do when the assignment |
# And a special case in the nav map; what to do when the assignment |
# is not yet done and due in less then 24 hours |
# is not yet done and due in less then 24 hours |
my $hurryUpColor = "#FFCCCC"; |
my $hurryUpColor = "#FF0000"; |
|
|
my %statusIconMap = |
my %statusIconMap = |
( $res->NETWORK_FAILURE => '', |
( $res->NETWORK_FAILURE => '', |
Line 894 sub new_handle {
|
Line 164 sub new_handle {
|
$res->TRIES_LEFT => 'navmap.open.gif', |
$res->TRIES_LEFT => 'navmap.open.gif', |
$res->INCORRECT => 'navmap.wrong.gif', |
$res->INCORRECT => 'navmap.wrong.gif', |
$res->OPEN => 'navmap.open.gif', |
$res->OPEN => 'navmap.open.gif', |
$res->ATTEMPTED => '' ); |
$res->ATTEMPTED => 'navmap.open.gif' ); |
|
|
my %iconAltTags = |
my %iconAltTags = |
( 'navmap.correct.gif' => 'Correct', |
( 'navmap.correct.gif' => 'Correct', |
Line 914 sub new_handle {
|
Line 184 sub new_handle {
|
} |
} |
} |
} |
|
|
|
# Is this a new-style course? If so, we want to suppress showing the top-level |
|
# maps in their own folders, in favor of "inlining" them. |
|
my $topResource = $navmap->getById("0.0"); |
|
my $inlineTopLevelMaps = $topResource->src() =~ m|^/uploaded/.*default\.sequence$|; |
|
|
my $currenturl = $ENV{'form.postdata'}; |
my $currenturl = $ENV{'form.postdata'}; |
$currenturl=~s/^http\:\/\///; |
$currenturl=~s/^http\:\/\///; |
$currenturl=~s/^[^\/]+//; |
$currenturl=~s/^[^\/]+//; |
my $queryAdd = "postdata=" . &Apache::lonnet::escape($currenturl); |
# alreadyHere allows us to only open the maps necessary to view |
|
# the current location once, while at the same time remembering |
$r->print('<a href="navmaps?condition=1&filter=">Show All Resources</a><br /><br />'); |
# the current location. Without that check, the user would never |
|
# be able to close those maps; the user would close it, and the |
|
# currenturl scan would re-open it. |
|
my $queryAdd = "postdata=" . &Apache::lonnet::escape($currenturl) . |
|
"&alreadyHere=1"; |
|
|
# Begin the HTML table |
# Begin the HTML table |
# four cols: resource + indent, chat+feedback, icon, text string |
# four cols: resource + indent, chat+feedback, icon, text string |
$r->print('<table cellspacing="3" cellpadding="0" bgcolor="#FFFFFF">' ."\n"); |
$r->print('<table cellspacing="0" cellpadding="3" border="0" bgcolor="#FFFFFF">' ."\n"); |
|
|
my $condition = 0; |
# This needs to be updated to use symbs from the remote, |
if ($ENV{'form.condition'}) { |
# instead of uris. The changes to this and the main rendering |
$condition = 1; |
# loop should be obvious. |
} |
# Here's a simple example of the iterator. |
|
# Preprocess the map: Look for current URL, force inlined maps to display |
|
|
|
# This currently does very little... |
|
#my $mapEventualIterator = Apache::lonnavmaps::iterator->new($navmap, undef, undef, {}, |
|
#undef, $condition); |
|
|
my $mapIterator = $navmap->getIterator(undef, undef, \%filterHash, $condition); |
my $mapIterator = $navmap->getIterator(undef, undef, {}, 1); |
|
my $found = 0; |
|
my $depth = 1; |
|
my $currentUrlIndex = 0; # keeps track of when the current resource is found, |
|
# so we can back up a few and put the anchor above the |
|
# current resource |
|
$mapIterator->next(); # discard the first BEGIN_MAP |
|
my $curRes = $mapIterator->next(); |
|
my $counter = 0; |
|
|
|
while ($depth > 0) { |
|
if ($curRes == $mapIterator->BEGIN_MAP()) { $depth++; } |
|
if ($curRes == $mapIterator->END_MAP()) { $depth--; } |
|
|
|
if (ref($curRes)) { $counter++; } |
|
|
|
my $mapStack = $mapIterator->getStack(); |
|
if ($currenturl && !$ENV{'form.alreadyHere'} && ref($curRes) && |
|
$curRes->src() eq $currenturl) { |
|
# If this is the correct resource, be sure to |
|
# show it by making sure the containing maps |
|
# are open. |
|
|
|
$currentUrlIndex = $counter; |
|
|
|
for my $map (@{$mapStack}) { |
|
if ($condition) { |
|
undef $filterHash{$map->map_pc()}; |
|
} else { |
|
$filterHash{$map->map_pc()} = 1; |
|
} |
|
} |
|
$ENV{'form.alreadyHere'} = 1; |
|
} |
|
|
|
# Preprocessing: If we're inlining nav maps into the top-level display, |
|
# make sure we show this map! |
|
if ($inlineTopLevelMaps && ref($curRes) && $curRes->is_map && |
|
scalar(@{$mapStack}) == 1) { |
|
if ($condition) { |
|
undef $filterHash{$curRes->map_pc()}; |
|
} else { |
|
$filterHash{$curRes->map_pc()} = 1; |
|
} |
|
} |
|
|
|
$curRes = $mapIterator->next(); |
|
} |
|
|
undef $res; # so we don't accidentally use it later |
undef $res; # so we don't accidentally use it later |
my $indentLevel = 0; |
my $indentLevel = 0; |
my $indentString = "<img src=\"/adm/lonIcons/whitespace1.gif\" width=\"25\" height=\"1\" alt=\"\" border=\"0\" />"; |
my $indentString = "<img src=\"/adm/lonIcons/whitespace1.gif\" width=\"25\" height=\"1\" alt=\"\" border=\"0\" />"; |
Line 938 sub new_handle {
|
Line 270 sub new_handle {
|
my $isNewBranch = 0; |
my $isNewBranch = 0; |
my $now = time(); |
my $now = time(); |
my $in24Hours = $now + 24 * 60 * 60; |
my $in24Hours = $now + 24 * 60 * 60; |
my $depth = 1; |
my $displayedHereMarker = 0; |
|
|
# We know the first thing is a BEGIN_MAP (see "$self->{STARTED}" |
# We know the first thing is a BEGIN_MAP (see "$self->{STARTED}" |
# code in iterator->next), so ignore the first one |
# code in iterator->next), so ignore the first one |
|
$mapIterator = $navmap->getIterator(undef, undef, \%filterHash, |
|
$condition); |
$mapIterator->next(); |
$mapIterator->next(); |
my $curRes = $mapIterator->next(); |
$curRes = $mapIterator->next(); |
|
my $deltadepth = 0; |
|
$depth = 1; |
|
|
|
my @backgroundColors = ("#FFFFFF", "#F6F6F6"); |
|
my $rowNum = 0; |
|
|
|
$counter = 0; |
|
|
while ($depth > 0) { |
while ($depth > 0) { |
|
# If we're in a new style course, and this is a BEGIN_MAP, END_MAP, or |
|
# map resource and the stack depth is only one, just plain ignore this resource |
|
# entirely. (This has the effect of inlining the resources in that map |
|
# in the nav map.) |
|
if ($inlineTopLevelMaps && scalar(@{$mapIterator->getStack()}) == 1 && |
|
ref($curRes) && $curRes->is_map()) { |
|
# We let the normal depth stuff occur, but we need to shift everything |
|
# over by one to the left to make it look right. |
|
$deltadepth = -1; |
|
$curRes = $mapIterator->next(); |
|
next; |
|
} |
|
|
if ($curRes == $mapIterator->BEGIN_MAP() || |
if ($curRes == $mapIterator->BEGIN_MAP() || |
$curRes == $mapIterator->BEGIN_BRANCH()) { |
$curRes == $mapIterator->BEGIN_BRANCH()) { |
$indentLevel++; |
$indentLevel++; |
Line 957 sub new_handle {
|
Line 311 sub new_handle {
|
if ($curRes == $mapIterator->BEGIN_BRANCH()) { |
if ($curRes == $mapIterator->BEGIN_BRANCH()) { |
$isNewBranch = 1; |
$isNewBranch = 1; |
} |
} |
if ($curRes == $mapIterator->BEGIN_MAP()) { |
if ($curRes == $mapIterator->BEGIN_MAP()) { $depth++; } |
$depth++; |
if ($curRes == $mapIterator->END_MAP()) { $depth--; } |
} |
|
if ($curRes == $mapIterator->END_MAP()) { |
if (ref($curRes)) { $counter++; } |
$depth--; |
|
} |
if ($depth == 1) { $deltadepth = 0; } # we're done shifting, because we're |
|
# out of the inlined map |
|
|
# Is this resource being blotted out? |
# Is this resource being blotted out? |
if (ref($curRes) && !advancedUser() && $curRes->randomout()) { |
if (ref($curRes) && !advancedUser() && $curRes->randomout()) { |
Line 1034 sub new_handle {
|
Line 389 sub new_handle {
|
} |
} |
|
|
} else { |
} else { |
@parts[0] = "0"; # this is to get past foreach loop below |
$parts[0] = "0"; # this is to get past foreach loop below |
# you can consider a non-problem resource as a resource |
# you can consider a non-problem resource as a resource |
# with only one part without loss |
# with only one part without loss |
|
} |
|
|
|
# Is it a multipart problem with a single part, now in |
|
# @parts with "0" filtered out? If so, forget it's a multi-part |
|
# problem and treat it like a single-part problem. |
|
if ( scalar(@parts) == 1 ) { |
|
$multipart = 0; |
} |
} |
|
|
# Display one part, in event of network error. |
# Display one part, in event of network error. |
Line 1063 sub new_handle {
|
Line 425 sub new_handle {
|
'symb='.&Apache::lonnet::escape($curRes->symb()). |
'symb='.&Apache::lonnet::escape($curRes->symb()). |
'"'; |
'"'; |
my $title = $curRes->title(); |
my $title = $curRes->title(); |
|
if (!$title) { |
|
$title = $curRes->src(); |
|
$title = substr ($title, rindex($title, "/") + 1); |
|
} |
my $partLabel = ""; |
my $partLabel = ""; |
my $newBranchText = ""; |
my $newBranchText = ""; |
|
|
Line 1090 sub new_handle {
|
Line 456 sub new_handle {
|
# Display the correct icon, link to open or shut map |
# Display the correct icon, link to open or shut map |
if ($curRes->is_map()) { |
if ($curRes->is_map()) { |
my $mapId = $curRes->map_pc(); |
my $mapId = $curRes->map_pc(); |
my $nowOpen = !defined($filterHash{$mapId}); |
my $nowOpen = (!defined($filterHash{$mapId})); |
|
if ($condition) {$nowOpen = !$nowOpen;} |
$icon = $nowOpen ? |
$icon = $nowOpen ? |
"folder_closed.gif" : "folder_opened.gif"; |
"navmap.folder.closed.gif" : "navmap.folder.open.gif"; |
$icon = "<img src=\"/adm/lonIcons/$icon\" alt=\"\" border=\"0\" />"; |
$icon = "<img src=\"/adm/lonIcons/$icon\" alt=\"\" border=\"0\" />"; |
$linkopen = "<a href=\"/adm/navmaps?filter="; |
$linkopen = "<a href=\"/adm/navmaps?filter="; |
$linkopen .= ($nowOpen xor $condition) ? |
$linkopen .= ($nowOpen xor $condition) ? |
Line 1104 sub new_handle {
|
Line 471 sub new_handle {
|
} |
} |
|
|
my $colorizer = ""; |
my $colorizer = ""; |
|
my $color; |
if ($curRes->is_problem()) { |
if ($curRes->is_problem()) { |
my $status = $curRes->status($part); |
my $status = $curRes->status($part); |
my $color = $colormap{$status}; |
$color = $colormap{$status}; |
|
|
|
# Special case in the navmaps: If in less then |
|
# 24 hours, give it a bit of urgency |
|
if (($status == $curRes->OPEN() || $status == $curRes->ATTEMPTED() || |
|
$status == $curRes->TRIES_LEFT()) |
|
&& $curRes->duedate() && |
|
$curRes->duedate() < time()+(24*60*60) && |
|
$curRes->duedate() > time()) { |
|
$color = $hurryUpColor; |
|
} |
|
# Special case: If this is the last try, and there is |
|
# more then one available, and it's not due yet, give a bit of urgency |
|
my $tries = $curRes->tries($part); |
|
my $maxtries = $curRes->maxtries($part); |
|
if ($tries && $maxtries && $maxtries > 1 && |
|
$maxtries - $tries == 1 && $curRes->duedate() && |
|
$curRes->duedate() > time()) { |
|
$color = $hurryUpColor; |
|
} |
if ($color ne "") { |
if ($color ne "") { |
$colorizer = "bgcolor=\"$color\""; |
$colorizer = "bgcolor=\"$color\""; |
} |
} |
Line 1116 sub new_handle {
|
Line 503 sub new_handle {
|
$nonLinkedText .= ' <i>(hidden)</i> '; |
$nonLinkedText .= ' <i>(hidden)</i> '; |
} |
} |
|
|
# FIRST COL: The resource indentation, branch icon, and name |
$rowNum++; |
$r->print(" <tr><td align=\"left\" valign=\"bottom\">\n"); |
my $backgroundColor = $backgroundColors[$rowNum % scalar(@backgroundColors)]; |
|
|
|
# FIRST COL: The resource indentation, branch icon, name, and anchor |
|
$r->print(" <tr bgcolor=\"$backgroundColor\"><td align=\"left\" valign=\"center\" width=\"60%\">\n"); |
|
|
|
# anchor for current resource... - 5 is deliberate: If it's that |
|
# high on the screen, don't bother focusing on it. Also this will |
|
# print multiple anchors if this is an expanded multi-part problem... |
|
# who cares? |
|
if ($counter == $currentUrlIndex - 5) { |
|
$r->print('<a name="current" />'); |
|
} |
|
|
# print indentation |
# print indentation |
for (my $i = 0; $i < $indentLevel - $deltalevel; $i++) { |
for (my $i = 0; $i < $indentLevel - $deltalevel + $deltadepth; $i++) { |
$r->print($indentString); |
$r->print($indentString); |
} |
} |
|
|
$r->print(" ${newBranchText}${linkopen}$icon${linkclose}\n"); |
$r->print(" ${newBranchText}${linkopen}$icon${linkclose}\n"); |
|
|
|
my $curMarkerBegin = ""; |
|
my $curMarkerEnd = ""; |
|
|
|
# Is this the current resource? |
|
if ($curRes->src() eq $currenturl && !$displayedHereMarker) { |
|
$curMarkerBegin = '<a name="curloc" /><font color="red" size="+2">> </font>'; |
|
$curMarkerEnd = '<font color="red" size="+2"> <</font>'; |
|
$displayedHereMarker = 1; |
|
} |
|
|
if ($curRes->is_problem() && $part ne "0" && !$condensed) { |
if ($curRes->is_problem() && $part ne "0" && !$condensed) { |
$partLabel = " (Part $part)"; |
$partLabel = " (Part $part)"; |
$title = ""; |
$title = ""; |
Line 1134 sub new_handle {
|
Line 542 sub new_handle {
|
$nonLinkedText .= ' (' . $curRes->countParts() . ' parts)'; |
$nonLinkedText .= ' (' . $curRes->countParts() . ' parts)'; |
} |
} |
|
|
$r->print(" <a href=\"$link\">$title$partLabel</a> $nonLinkedText"); |
$r->print(" $curMarkerBegin<a href=\"$link\">$title$partLabel</a> $curMarkerEnd $nonLinkedText"); |
|
#$r->print(" TDV:" . $curRes->{DATA}->{TOP_DOWN_VAL}); # temp |
|
#$r->print(" BUV:" . $curRes->{DATA}->{BOT_UP_VAL}); # temp |
|
#$r->print(" DD:" . $curRes->{DATA}->{DISPLAY_DEPTH}); # temp |
|
|
if ($curRes->{RESOURCE_ERROR}) { |
if ($curRes->{RESOURCE_ERROR}) { |
$r->print(&Apache::loncommon::help_open_topic ("Navmap_Host_Down", |
$r->print(&Apache::loncommon::help_open_topic ("Navmap_Host_Down", |
'<font size="-1">Host down</font>')); |
'<font size="-1">Host down</font>')); |
} |
} |
|
|
my $discussionHTML = ""; my $feedbackHTML = ""; |
my $discussionHTML = ""; my $feedbackHTML = ""; |
|
|
# SECOND COL: Is there text or feedback? |
# SECOND COL: Is there text, feedback, errors?? |
if ($curRes->hasDiscussion()) { |
if ($curRes->hasDiscussion()) { |
$discussionHTML = $linkopen . |
$discussionHTML = $linkopen . |
'<img border="0" src="/adm/lonMisc/chat.gif" />' . |
'<img border="0" src="/adm/lonMisc/chat.gif" />' . |
Line 1162 sub new_handle {
|
Line 573 sub new_handle {
|
} |
} |
} |
} |
|
|
$r->print("<td align=\"left\" valign=\"bottom\">$discussionHTML$feedbackHTML</td>"); |
$r->print("<td width=\"75\" align=\"left\" valign=\"center\">$discussionHTML$feedbackHTML </td>"); |
|
|
# Is this the first displayed part of a multi-part problem |
# Is this the first displayed part of a multi-part problem |
# that has not been condensed, so we should suppress these two |
# that has not been condensed, so we should suppress these two |
Line 1175 sub new_handle {
|
Line 586 sub new_handle {
|
my $icon = $statusIconMap{$curRes->status($part)}; |
my $icon = $statusIconMap{$curRes->status($part)}; |
my $alt = $iconAltTags{$icon}; |
my $alt = $iconAltTags{$icon}; |
if ($icon) { |
if ($icon) { |
$r->print("<td valign=\"bottom\" width=\"50\" align=\"right\">$linkopen<img src=\"/adm/lonIcons/$icon\" border=\"0\" alt=\"$alt\" />$linkclose</td>\n"); |
$r->print("<td width=\"30\" valign=\"center\" width=\"50\" align=\"right\">$linkopen<img width=\"25\" height=\"25\" src=\"/adm/lonIcons/$icon\" border=\"0\" alt=\"$alt\" />$linkclose</td>\n"); |
} else { |
} else { |
$r->print("<td></td>\n"); |
$r->print("<td width=\"30\"> </td>\n"); |
} |
} |
} else { # not problem, no icon |
} else { # not problem, no icon |
$r->print("<td></td>\n"); |
$r->print("<td width=\"30\"> </td>\n"); |
} |
} |
|
|
# FOURTH COL: Text description |
# FOURTH COL: Text description |
$r->print("<td $colorizer align=\"right\" valign=\"bottom\">\n"); |
#$r->print("<td $colorizer align=\"right\" valign=\"center\">\n"); |
|
$r->print("<td align=\"right\" valign=\"center\">\n"); |
|
|
if ($curRes->kind() eq "res" && |
if ($curRes->kind() eq "res" && |
$curRes->is_problem() && |
$curRes->is_problem() && |
!$firstDisplayed) { |
!$firstDisplayed) { |
|
$r->print ("<font color=\"$color\"><b>") if ($color); |
$r->print (getDescription($curRes, $part)); |
$r->print (getDescription($curRes, $part)); |
|
$r->print ("</b></font>") if ($color); |
} |
} |
if ($curRes->is_map() && advancedUser() && $curRes->randompick()) { |
if ($curRes->is_map() && advancedUser() && $curRes->randompick()) { |
$r->print('(randomly select ' . $curRes->randompick() .')'); |
$r->print('(randomly select ' . $curRes->randompick() .')'); |
} |
} |
|
|
$r->print("</td></tr>\n"); |
$r->print(" </td></tr>\n"); |
} |
} |
} |
} |
$curRes = $mapIterator->next(); |
$curRes = $mapIterator->next(); |
Line 1270 sub getDescription {
|
Line 684 sub getDescription {
|
return "Not currently assigned."; |
return "Not currently assigned."; |
} |
} |
if ($status == $res->OPEN_LATER) { |
if ($status == $res->OPEN_LATER) { |
return "Opens: " . timeToHumanString($res->opendate($part)); |
return "Open " . timeToHumanString($res->opendate($part)); |
} |
} |
if ($status == $res->OPEN) { |
if ($status == $res->OPEN) { |
if ($res->duedate()) { |
if ($res->duedate($part)) { |
return "Due: $status " . timeToHumanString($res->duedate($part)); |
return "Due " . timeToHumanString($res->duedate($part)); |
} else { |
} else { |
return "Open, no due date"; |
return "Open, no due date"; |
} |
} |
} |
} |
if ($status == $res->PAST_DUE_ANSWER_LATER) { |
if ($status == $res->PAST_DUE_ANSWER_LATER) { |
return "Answer opens: " . timeToHumanString($res->answerdate($part)); |
return "Answer open " . timeToHumanString($res->answerdate($part)); |
} |
} |
if ($status == $res->PAST_DUE_NO_ANSWER) { |
if ($status == $res->PAST_DUE_NO_ANSWER) { |
return "Was Due: " . timeToHumanString($res->duedate($part)); |
return "Was due " . timeToHumanString($res->duedate($part)); |
} |
} |
if ($status == $res->ANSWER_OPEN) { |
if ($status == $res->ANSWER_OPEN) { |
return "Answer available"; |
return "Answer available"; |
Line 1295 sub getDescription {
|
Line 709 sub getDescription {
|
return "Not yet graded."; |
return "Not yet graded."; |
} |
} |
if ($status == $res->TRIES_LEFT) { |
if ($status == $res->TRIES_LEFT) { |
my $tries = $res->tries(); |
my $tries = $res->tries($part); |
my $maxtries = $res->maxtries(); |
my $maxtries = $res->maxtries($part); |
my $triesString = "($tries of $maxtries tries used)"; |
my $triesString = ""; |
|
if ($tries && $maxtries) { |
|
$triesString = "<font size=\"-1\"><i>($tries of $maxtries tries used)</i></font>"; |
|
if ($maxtries > 1 && $maxtries - $tries == 1) { |
|
$triesString = "<b>$triesString</b>"; |
|
} |
|
} |
if ($res->duedate()) { |
if ($res->duedate()) { |
return "Due: $status " . timeToHumanString($res->duedate($part)) . |
return "Due " . timeToHumanString($res->duedate($part)) . |
" $triesString"; |
" $triesString"; |
} else { |
} else { |
return "No due date $triesString"; |
return "No due date $triesString"; |
Line 1311 sub advancedUser {
|
Line 731 sub advancedUser {
|
return $ENV{'user.adv'}; |
return $ENV{'user.adv'}; |
} |
} |
|
|
# I want to change this into something more human-friendly. For |
|
# now, this is a simple call to localtime. The final function |
# timeToHumanString takes a time number and converts it to a |
# probably belongs in loncommon. |
# human-readable representation, meant to be used in the following |
|
# manner: |
|
# print "Due $timestring" |
|
# print "Open $timestring" |
|
# print "Answer available $timestring" |
|
# Very, very, very, VERY English-only... goodness help a localizer on |
|
# this func... |
sub timeToHumanString { |
sub timeToHumanString { |
my ($time) = @_; |
my ($time) = @_; |
# zero, '0' and blank are bad times |
# zero, '0' and blank are bad times |
if ($time) { |
if (!$time) { |
return localtime($time); |
return 'never'; |
} else { |
} |
return 'Never'; |
|
|
my $now = time(); |
|
|
|
my @time = localtime($time); |
|
my @now = localtime($now); |
|
|
|
# Positive = future |
|
my $delta = $time - $now; |
|
|
|
my $minute = 60; |
|
my $hour = 60 * $minute; |
|
my $day = 24 * $hour; |
|
my $week = 7 * $day; |
|
my $inPast = 0; |
|
|
|
# Logic in comments: |
|
# Is it now? (extremely unlikely) |
|
if ( $delta == 0 ) { |
|
return "this instant"; |
|
} |
|
|
|
if ($delta < 0) { |
|
$inPast = 1; |
|
$delta = -$delta; |
|
} |
|
|
|
# Is it in the future? |
|
if ( $delta > 0 ) { |
|
# Is it less then a minute away? |
|
my $tense = $inPast ? " ago" : ""; |
|
my $prefix = $inPast ? "" : "in "; |
|
if ( $delta < $minute ) { |
|
if ($delta == 1) { return "${prefix}1 second$tense"; } |
|
return "$prefix$delta seconds$tense"; |
|
} |
|
|
|
# Is it less then an hour away? |
|
if ( $delta < $hour ) { |
|
# If so, use minutes |
|
my $minutes = floor($delta / 60); |
|
if ($minutes == 1) { return "${prefix}1 minute$tense"; } |
|
return "$prefix$minutes minutes$tense"; |
|
} |
|
|
|
# Is it less then 24 hours away? If so, |
|
# display hours + minutes |
|
if ( $delta < $hour * 24) { |
|
my $hours = floor($delta / $hour); |
|
my $minutes = floor(($delta % $hour) / $minute); |
|
my $hourString = "$hours hours"; |
|
my $minuteString = ", $minutes minutes"; |
|
if ($hours == 1) { |
|
$hourString = "1 hour"; |
|
} |
|
if ($minutes == 1) { |
|
$minuteString = ", 1 minute"; |
|
} |
|
if ($minutes == 0) { |
|
$minuteString = ""; |
|
} |
|
return "$prefix$hourString$minuteString$tense"; |
|
} |
|
|
|
# Less then 5 days away, display day of the week and |
|
# HH:MM |
|
if ( $delta < $day * 5 ) { |
|
my $timeStr = strftime("%A, %b %e at %I:%M %P", localtime($time)); |
|
$timeStr =~ s/12:00 am/midnight/; |
|
$timeStr =~ s/12:00 pm/noon/; |
|
return ($inPast ? "last " : "next ") . |
|
$timeStr; |
|
} |
|
|
|
# Is it this year? |
|
if ( $time[5] == $now[5]) { |
|
# Return on Month Day, HH:MM meridian |
|
my $timeStr = strftime("on %A, %b %e at %I:%M %P", localtime($time)); |
|
$timeStr =~ s/12:00 am/midnight/; |
|
$timeStr =~ s/12:00 pm/noon/; |
|
return $timeStr; |
|
} |
|
|
|
# Not this year, so show the year |
|
my $timeStr = strftime("on %A, %b %e %G at %I:%M %P", localtime($time)); |
|
$timeStr =~ s/12:00 am/midnight/; |
|
$timeStr =~ s/12:00 pm/noon/; |
|
return $timeStr; |
} |
} |
} |
} |
|
|
Line 1390 sub new {
|
Line 902 sub new {
|
$self->{PARM_HASH} = \%parmhash; |
$self->{PARM_HASH} = \%parmhash; |
$self->{HASH_TIED} = 1; |
$self->{HASH_TIED} = 1; |
|
|
|
bless($self); |
|
|
|
return $self; |
|
} |
|
|
|
sub init { |
|
my $self = shift; |
|
|
# If the course opt hash and the user opt hash should be generated, |
# If the course opt hash and the user opt hash should be generated, |
# generate them |
# generate them |
if ($self->{GENERATE_COURSE_USER_OPT}) { |
if ($self->{GENERATE_COURSE_USER_OPT}) { |
Line 1402 sub new {
|
Line 922 sub new {
|
|
|
my $userprefix=$uname.'_'.$udom.'_'; |
my $userprefix=$uname.'_'.$udom.'_'; |
|
|
my %courserdatas; my %useropt; my %courseopt; |
my %courserdatas; my %useropt; my %courseopt; my %userrdatas; |
unless ($uhome eq 'no_host') { |
unless ($uhome eq 'no_host') { |
# ------------------------------------------------- Get coursedata (if present) |
# ------------------------------------------------- Get coursedata (if present) |
unless ((time-$courserdatas{$cid.'.last_cache'})<240) { |
unless ((time-$courserdatas{$cid.'.last_cache'})<240) { |
Line 1492 sub new {
|
Line 1012 sub new {
|
$self->{EMAIL_STATUS} = \%emailstatus; |
$self->{EMAIL_STATUS} = \%emailstatus; |
|
|
} |
} |
|
|
bless($self); |
$self->{PARM_CACHE} = {}; |
|
|
return $self; |
|
} |
} |
|
|
# Checks to see if coursemap is defined, matching test in old lonnavmaps |
# Checks to see if coursemap is defined, matching test in old lonnavmaps |
Line 1511 sub courseMapDefined {
|
Line 1029 sub courseMapDefined {
|
sub getIterator { |
sub getIterator { |
my $self = shift; |
my $self = shift; |
my $iterator = Apache::lonnavmaps::iterator->new($self, shift, shift, |
my $iterator = Apache::lonnavmaps::iterator->new($self, shift, shift, |
shift, undef, shift); |
shift, undef, shift, |
|
$ENV{'form.direction'}); |
return $iterator; |
return $iterator; |
} |
} |
|
|
Line 1613 sub finishResource {
|
Line 1132 sub finishResource {
|
sub parmval { |
sub parmval { |
my $self = shift; |
my $self = shift; |
my ($what,$symb)=@_; |
my ($what,$symb)=@_; |
|
my $hashkey = $what."|||".$symb; |
|
|
|
if (defined($self->{PARM_CACHE}->{$hashkey})) { |
|
return $self->{PARM_CACHE}->{$hashkey}; |
|
} |
|
|
|
my $result = $self->parmval_real($what, $symb); |
|
$self->{PARM_CACHE}->{$hashkey} = $result; |
|
return $result; |
|
} |
|
|
|
sub parmval_real { |
|
my $self = shift; |
|
my ($what,$symb) = @_; |
|
|
my $cid=$ENV{'request.course.id'}; |
my $cid=$ENV{'request.course.id'}; |
my $csec=$ENV{'request.course.sec'}; |
my $csec=$ENV{'request.course.sec'}; |
my $uname=$ENV{'user.name'}; |
my $uname=$ENV{'user.name'}; |
Line 1720 getIterator behaves as follows:
|
Line 1254 getIterator behaves as follows:
|
|
|
=over 4 |
=over 4 |
|
|
=item B<getIterator>(firstResource, finishResource, filterHash, condition): All parameters are optional. firstResource is a resource reference corresponding to where the iterator should start. It defaults to navmap->firstResource() for the corresponding nav map. finishResource corresponds to where you want the iterator to end, defaulting to navmap->finishResource(). filterHash is a hash used as a set containing strings representing the resource IDs, defaulting to empty. Condition is a 1 or 0 that sets what to do with the filter hash: If a 0, then only resource that exist IN the filterHash will be recursed on. If it is a 1, only resources NOT in the filterHash will be recursed on. Defaults to 0, which is to say, do not recurse unless explicitly asked to. |
=item B<getIterator>(firstResource, finishResource, filterHash, condition, direction): All parameters are optional. firstResource is a resource reference corresponding to where the iterator should start. It defaults to navmap->firstResource() for the corresponding nav map. finishResource corresponds to where you want the iterator to end, defaulting to navmap->finishResource(). filterHash is a hash used as a set containing strings representing the resource IDs, defaulting to empty. Condition is a 1 or 0 that sets what to do with the filter hash: If a 0, then only resource that exist IN the filterHash will be recursed on. If it is a 1, only resources NOT in the filterHash will be recursed on. Defaults to 0, which is to say, do not recurse unless explicitly asked to. Direction specifies which direction to recurse, either FORWARD or BACKWARD, with FORWARD being default. |
|
|
Thus, by default, all resources will be shown. Change the condition to a 1 without changing the hash, and only the top level of the map will be shown. Changing the condition to 1 and including some values in the hash will allow you to selectively examine parts of the navmap, while leaving it on 0 and adding things to the hash will allow you to selectively ignore parts of the nav map. See the handler code for examples: By default, the condition is 0 and all folders are closed unless explicitly opened. Clicking "Show All Resources" will use a condition of 1 and an empty filterHash, resulting in all resources being shown. |
Thus, by default, all resources will be shown. Change the condition to a 1 without changing the hash, and only the top level of the map will be shown. Changing the condition to 1 and including some values in the hash will allow you to selectively examine parts of the navmap, while leaving it on 0 and adding things to the hash will allow you to selectively ignore parts of the nav map. See the handler code for examples: By default, the condition is 0 and all folders are closed unless explicitly opened. Clicking "Show All Resources" will use a condition of 1 and an empty filterHash, resulting in all resources being shown. |
|
|
Line 1750 sub BEGIN_MAP { return 1; } # beginin
|
Line 1284 sub BEGIN_MAP { return 1; } # beginin
|
sub END_MAP { return 2; } # end of the map |
sub END_MAP { return 2; } # end of the map |
sub BEGIN_BRANCH { return 3; } # beginning of a branch |
sub BEGIN_BRANCH { return 3; } # beginning of a branch |
sub END_BRANCH { return 4; } # end of a branch |
sub END_BRANCH { return 4; } # end of a branch |
|
sub FORWARD { return 1; } # go forward |
|
sub BACKWARD { return 2; } |
|
|
# Params: nav map, start resource, end resource, filter, condition, |
sub min { |
# already seen hash ref |
(my $a, my $b) = @_; |
|
if ($a < $b) { return $a; } else { return $b; } |
|
} |
|
|
sub new { |
sub new { |
# magic invocation to create a class instance |
# magic invocation to create a class instance |
Line 1781 sub new {
|
Line 1319 sub new {
|
if (!defined($self->{ALREADY_SEEN})) { $self->{ALREADY_SEEN} = {} }; |
if (!defined($self->{ALREADY_SEEN})) { $self->{ALREADY_SEEN} = {} }; |
$self->{CONDITION} = shift; |
$self->{CONDITION} = shift; |
|
|
# Flag: Have we started yet? If not, the first action is to return BEGIN_MAP. |
# Now, we need to pre-process the map, by walking forward and backward |
|
# over the parts of the map we're going to look at. |
|
|
|
# The processing steps are exactly the same, except for a few small |
|
# changes, so I bundle those up in the following list of two elements: |
|
# (direction_to_iterate, VAL_name, next_resource_method_to_call, |
|
# first_resource). |
|
# This prevents writing nearly-identical code twice. |
|
my @iterations = ( [FORWARD(), 'TOP_DOWN_VAL', 'getNext', |
|
'FIRST_RESOURCE'], |
|
[BACKWARD(), 'BOT_UP_VAL', 'getPrevious', |
|
'FINISH_RESOURCE'] ); |
|
|
|
my $maxDepth = 0; # tracks max depth |
|
|
|
foreach my $pass (@iterations) { |
|
my $direction = $pass->[0]; |
|
my $valName = $pass->[1]; |
|
my $nextResourceMethod = $pass->[2]; |
|
my $firstResourceName = $pass->[3]; |
|
|
|
my $iterator = Apache::lonnavmaps::DFSiterator->new($self->{NAV_MAP}, |
|
$self->{FIRST_RESOURCE}, |
|
$self->{FINISH_RESOURCE}, |
|
{}, undef, 0, $direction); |
|
|
|
# prime the recursion |
|
$self->{$firstResourceName}->{DATA}->{$valName} = 0; |
|
my $depth = 0; |
|
$iterator->next(); |
|
my $curRes = $iterator->next(); |
|
while ($depth > -1) { |
|
if ($curRes == $iterator->BEGIN_MAP()) { $depth++; } |
|
if ($curRes == $iterator->END_MAP()) { $depth--; } |
|
|
|
if (ref($curRes)) { |
|
my $resultingVal = $curRes->{DATA}->{$valName}; |
|
my $nextResources = $curRes->$nextResourceMethod(); |
|
my $resourceCount = scalar(@{$nextResources}); |
|
|
|
if ($resourceCount == 1) { |
|
my $current = $nextResources->[0]->{DATA}->{$valName} || 999999999; |
|
$nextResources->[0]->{DATA}->{$valName} = min($resultingVal, $current); |
|
} |
|
|
|
if ($resourceCount > 1) { |
|
foreach my $res (@{$nextResources}) { |
|
my $current = $res->{DATA}->{$valName} || 999999999; |
|
$res->{DATA}->{$valName} = min($current, $resultingVal + 1); |
|
} |
|
} |
|
} |
|
|
|
# Assign the final val |
|
if (ref($curRes) && $direction == BACKWARD()) { |
|
my $finalDepth = min($curRes->{DATA}->{TOP_DOWN_VAL}, |
|
$curRes->{DATA}->{BOT_UP_VAL}); |
|
|
|
$curRes->{DATA}->{DISPLAY_DEPTH} = $finalDepth; |
|
if ($finalDepth > $maxDepth) {$maxDepth = $finalDepth;} |
|
} |
|
$curRes = $iterator->next(); |
|
} |
|
} |
|
|
|
# Set up some bookkeeping information. |
|
$self->{CURRENT_DEPTH} = 0; |
|
$self->{MAX_DEPTH} = $maxDepth; |
|
$self->{STACK} = []; |
|
$self->{RECURSIVE_ITERATOR_FLAG} = 0; |
|
|
|
for (my $i = 0; $i <= $self->{MAX_DEPTH}; $i++) { |
|
push @{$self->{STACK}}, []; |
|
} |
|
|
|
# Prime the recursion w/ the first resource |
|
push @{$self->{STACK}->[0]}, $self->{FIRST_RESOURCE}; |
|
$self->{ALREADY_SEEN}->{$self->{FIRST_RESOURCE}->{ID}} = 1; |
|
|
|
bless ($self); |
|
|
|
return $self; |
|
} |
|
|
|
sub next { |
|
my $self = shift; |
|
|
|
if ($self->{RECURSIVE_ITERATOR_FLAG}) { |
|
# grab the next from the recursive iterator |
|
my $next = $self->{RECURSIVE_ITERATOR}->next(); |
|
|
|
# is it a begin or end map? If so, update the depth |
|
if ($next == BEGIN_MAP() ) { $self->{RECURSIVE_DEPTH}++; } |
|
if ($next == END_MAP() ) { $self->{RECURSIVE_DEPTH}--; } |
|
|
|
# Are we back at depth 0? If so, stop recursing |
|
if ($self->{RECURSIVE_DEPTH} == 0) { |
|
$self->{RECURSIVE_ITERATOR_FLAG} = 0; |
|
} |
|
|
|
return $next; |
|
} |
|
|
|
if (defined($self->{FORCE_NEXT})) { |
|
my $tmp = $self->{FORCE_NEXT}; |
|
$self->{FORCE_NEXT} = undef; |
|
return $tmp; |
|
} |
|
|
|
# Have we not yet begun? If not, return BEGIN_MAP and |
|
# remember we've started. |
|
if ( !$self->{STARTED} ) { |
|
$self->{STARTED} = 1; |
|
return $self->BEGIN_MAP(); |
|
} |
|
|
|
# Here's the guts of the iterator. |
|
|
|
# Find the next resource, if any. |
|
my $found = 0; |
|
my $i = $self->{MAX_DEPTH}; |
|
my $newDepth; |
|
my $here; |
|
while ( $i >= 0 && !$found ) { |
|
if ( scalar(@{$self->{STACK}->[$i]}) > 0 ) { |
|
$here = $self->{HERE} = shift @{$self->{STACK}->[$i]}; |
|
$found = 1; |
|
$newDepth = $i; |
|
} |
|
$i--; |
|
} |
|
|
|
# If we still didn't find anything, we're done. |
|
if ( !$found ) { |
|
# We need to get back down to the correct branch depth |
|
if ( $self->{CURRENT_DEPTH} > 0 ) { |
|
$self->{CURRENT_DEPTH}--; |
|
return END_BRANCH(); |
|
} else { |
|
return END_MAP(); |
|
} |
|
} |
|
|
|
# Get to the right level |
|
if ( $self->{CURRENT_DEPTH} > $newDepth ) { |
|
push @{$self->{STACK}->[$newDepth]}, $here; |
|
$self->{CURRENT_DEPTH}--; |
|
return END_BRANCH(); |
|
} |
|
if ( $self->{CURRENT_DEPTH} < $newDepth) { |
|
push @{$self->{STACK}->[$newDepth]}, $here; |
|
$self->{CURRENT_DEPTH}++; |
|
return BEGIN_BRANCH(); |
|
} |
|
|
|
# If we made it here, we have the next resource, and we're at the |
|
# right branch level. So let's examine the resource for where |
|
# we can get to from here. |
|
|
|
# So we need to look at all the resources we can get to from here, |
|
# categorize them if we haven't seen them, remember if we have a new |
|
my $nextUnfiltered = $here->getNext(); |
|
|
|
for (@$nextUnfiltered) { |
|
if (!defined($self->{ALREADY_SEEN}->{$_->{ID}})) { |
|
push @{$self->{STACK}->[$_->{DATA}->{DISPLAY_DEPTH}]}, $_; |
|
$self->{ALREADY_SEEN}->{$_->{ID}} = 1; |
|
} |
|
} |
|
|
|
# That ends the main iterator logic. Now, do we want to recurse |
|
# down this map (if this resource is a map)? |
|
if ($self->{HERE}->is_map() && |
|
(defined($self->{FILTER}->{$self->{HERE}->map_pc()}) xor $self->{CONDITION})) { |
|
$self->{RECURSIVE_ITERATOR_FLAG} = 1; |
|
my $firstResource = $self->{HERE}->map_start(); |
|
my $finishResource = $self->{HERE}->map_finish(); |
|
|
|
$self->{RECURSIVE_ITERATOR} = |
|
Apache::lonnavmaps::iterator->new($self->{NAV_MAP}, $firstResource, |
|
$finishResource, $self->{FILTER}, |
|
$self->{ALREADY_SEEN}, $self->{CONDITION}); |
|
} |
|
|
|
return $self->{HERE}; |
|
|
|
} |
|
|
|
=pod |
|
|
|
The other method available on the iterator is B<getStack>, which returns an array populated with the current 'stack' of maps, as references to the resource objects. Example: This is useful when making the navigation map, as we need to check whether we are under a page map to see if we need to link directly to the resource, or to the page. The first elements in the array will correspond to the top of the stack (most inclusive map). |
|
|
|
=cut |
|
|
|
sub getStack { |
|
my $self=shift; |
|
|
|
my @stack; |
|
|
|
$self->populateStack(\@stack); |
|
|
|
return \@stack; |
|
} |
|
|
|
# Private method: Calls the iterators recursively to populate the stack. |
|
sub populateStack { |
|
my $self=shift; |
|
my $stack = shift; |
|
|
|
push @$stack, $self->{HERE} if ($self->{HERE}); |
|
|
|
if ($self->{RECURSIVE_ITERATOR_FLAG}) { |
|
$self->{RECURSIVE_ITERATOR}->populateStack($stack); |
|
} |
|
} |
|
|
|
1; |
|
|
|
package Apache::lonnavmaps::DFSiterator; |
|
|
|
# Not documented in the perldoc: This is a simple iterator that just walks |
|
# through the nav map and presents the resources in a depth-first search |
|
# fashion, ignorant of conditionals, randomized resources, etc. It presents |
|
# BEGIN_MAP and END_MAP, but does not understand branches at all. It is |
|
# useful for pre-processing of some kind, and is in fact used by the main |
|
# iterator that way, but that's about it. |
|
# One could imagine merging this into the init routine of the main iterator, |
|
# but this might as well be left seperate, since it is possible some other |
|
# use might be found for it. - Jeremy |
|
|
|
sub BEGIN_MAP { return 1; } # begining of a new map |
|
sub END_MAP { return 2; } # end of the map |
|
sub FORWARD { return 1; } # go forward |
|
sub BACKWARD { return 2; } |
|
|
|
# Params: Nav map ref, first resource id/ref, finish resource id/ref, |
|
# filter hash ref (or undef), already seen hash or undef, condition |
|
# (as in main iterator), direction FORWARD or BACKWARD (undef->forward). |
|
sub new { |
|
# magic invocation to create a class instance |
|
my $proto = shift; |
|
my $class = ref($proto) || $proto; |
|
my $self = {}; |
|
|
|
$self->{NAV_MAP} = shift; |
|
return undef unless ($self->{NAV_MAP}); |
|
|
|
$self->{FIRST_RESOURCE} = shift || $self->{NAV_MAP}->firstResource(); |
|
$self->{FINISH_RESOURCE} = shift || $self->{NAV_MAP}->finishResource(); |
|
|
|
# If the given resources are just the ID of the resource, get the |
|
# objects |
|
if (!ref($self->{FIRST_RESOURCE})) { $self->{FIRST_RESOURCE} = |
|
$self->{NAV_MAP}->getById($self->{FIRST_RESOURCE}); } |
|
if (!ref($self->{FINISH_RESOURCE})) { $self->{FINISH_RESOURCE} = |
|
$self->{NAV_MAP}->getById($self->{FINISH_RESOURCE}); } |
|
|
|
$self->{FILTER} = shift; |
|
|
|
# A hash, used as a set, of resource already seen |
|
$self->{ALREADY_SEEN} = shift; |
|
if (!defined($self->{ALREADY_SEEN})) { $self->{ALREADY_SEEN} = {} }; |
|
$self->{CONDITION} = shift; |
|
$self->{DIRECTION} = shift || FORWARD(); |
|
|
|
# Flag: Have we started yet? |
$self->{STARTED} = 0; |
$self->{STARTED} = 0; |
|
|
# Should we continue calling the recursive iterator, if any? |
# Should we continue calling the recursive iterator, if any? |
Line 1795 sub new {
|
Line 1598 sub new {
|
$self->{RECURSIVE_DEPTH} = 0; |
$self->{RECURSIVE_DEPTH} = 0; |
|
|
# For keeping track of our branches, we maintain our own stack |
# For keeping track of our branches, we maintain our own stack |
$self->{BRANCH_STACK} = []; |
$self->{STACK} = []; |
# If the size shrinks, we exhausted a branch |
|
$self->{BRANCH_STACK_SIZE} = 0; |
|
$self->{BRANCH_DEPTH} = 0; |
|
|
|
# For returning two things in a forced sequence |
|
$self->{FORCE_NEXT} = undef; |
|
|
|
# Start with the first resource |
# Start with the first resource |
push @{$self->{BRANCH_STACK}}, $self->{FIRST_RESOURCE}; |
if ($self->{DIRECTION} == FORWARD) { |
$self->{BRANCH_STACK_SIZE} = 1; |
push @{$self->{STACK}}, $self->{FIRST_RESOURCE}; |
|
} else { |
|
push @{$self->{STACK}}, $self->{FINISH_RESOURCE}; |
|
} |
|
|
bless($self); |
bless($self); |
return $self; |
return $self; |
} |
} |
|
|
# Note... this function is *touchy*. I strongly recommend tracing |
|
# through it with the debugger a few times on a non-trivial map before |
|
# modifying it. Order is *everything*. |
|
sub next { |
sub next { |
my $self = shift; |
my $self = shift; |
|
|
# Iterator logic goes here |
|
|
|
# Are we using a recursive iterator? If so, pull from that and |
# Are we using a recursive iterator? If so, pull from that and |
# watch the depth; we want to resume our level at the correct time. |
# watch the depth; we want to resume our level at the correct time. |
if ($self->{RECURSIVE_ITERATOR_FLAG}) |
if ($self->{RECURSIVE_ITERATOR_FLAG}) { |
{ |
|
# grab the next from the recursive iterator |
# grab the next from the recursive iterator |
my $next = $self->{RECURSIVE_ITERATOR}->next(); |
my $next = $self->{RECURSIVE_ITERATOR}->next(); |
|
|
Line 1838 sub next {
|
Line 1632 sub next {
|
return $next; |
return $next; |
} |
} |
|
|
# Is this return value pre-determined? |
|
if (defined($self->{FORCE_NEXT})) { |
|
my $tmp = $self->{FORCE_NEXT}; |
|
$self->{FORCE_NEXT} = undef; |
|
return $tmp; |
|
} |
|
|
|
# Is there a current resource to grab? If not, then return |
# Is there a current resource to grab? If not, then return |
# END_BRANCH and END_MAP in succession. |
# END_MAP, which will end the iterator. |
if (scalar(@{$self->{BRANCH_STACK}}) == 0) { |
if (scalar(@{$self->{STACK}}) == 0) { |
if ($self->{BRANCH_DEPTH} > 0) { |
return $self->END_MAP(); |
$self->{FORCE_NEXT} = $self->END_MAP(); |
|
$self->{BRANCH_DEPTH}--; |
|
return $self->END_BRANCH(); |
|
} else { |
|
return $self->END_MAP(); |
|
} |
|
} |
} |
|
|
# Have we not yet begun? If not, return BEGIN_MAP and |
# Have we not yet begun? If not, return BEGIN_MAP and |
Line 1864 sub next {
|
Line 1645 sub next {
|
return $self->BEGIN_MAP; |
return $self->BEGIN_MAP; |
} |
} |
|
|
# Did the branch stack shrink since last run? If so, |
|
# we exhausted a branch last time, therefore, we're about |
|
# to start a new one. (We know because we already checked to see |
|
# if the stack was empty.) |
|
if ( scalar (@{$self->{BRANCH_STACK}}) < $self->{BRANCH_STACK_SIZE}) { |
|
$self->{BRANCH_STACK_SIZE} = scalar(@{$self->{BRANCH_STACK}}); |
|
$self->{BRANCH_DEPTH}++; |
|
return $self->BEGIN_BRANCH(); |
|
} |
|
|
|
# Remember the size for comparision next time. |
|
$self->{BRANCH_STACK_SIZE} = scalar(@{$self->{BRANCH_STACK}}); |
|
|
|
# If the next resource we mean to return is going to need |
|
# a lower branch level, terminate branches until we get |
|
# there. |
|
|
|
# Get the next resource in the branch |
# Get the next resource in the branch |
$self->{HERE} = pop @{$self->{BRANCH_STACK}}; |
$self->{HERE} = pop @{$self->{STACK}}; |
|
|
# Are we at the right depth? If not, close a branch and return |
# remember that we've seen this, so we don't return it again later |
# the current resource onto the branch stack |
|
if (defined($self->{HERE}->{DATA}->{ITERATOR_DEPTH}) |
|
&& $self->{HERE}->{DATA}->{ITERATOR_DEPTH} < |
|
$self->{BRANCH_DEPTH} ) { |
|
$self->{BRANCH_DEPTH}--; |
|
# return it so we can pick it up eventually |
|
push @{$self->{BRANCH_STACK}}, $self->{HERE}; |
|
return $self->END_BRANCH(); |
|
} |
|
|
|
# We always return it after this point and never before |
|
# (proof: look at just the return statements), so we |
|
# remember that we've seen this. |
|
$self->{ALREADY_SEEN}->{$self->{HERE}->{ID}} = 1; |
$self->{ALREADY_SEEN}->{$self->{HERE}->{ID}} = 1; |
|
|
# Get the next possible resources |
# Get the next possible resources |
my $nextUnfiltered = $self->{HERE}->getNext(); |
my $nextUnfiltered; |
|
if ($self->{DIRECTION} == FORWARD()) { |
|
$nextUnfiltered = $self->{HERE}->getNext(); |
|
} else { |
|
$nextUnfiltered = $self->{HERE}->getPrevious(); |
|
} |
my $next = []; |
my $next = []; |
|
|
# filter the next possibilities to remove things we've |
# filter the next possibilities to remove things we've |
# already seen. Also, remember what branch depth they should |
# already seen. |
# be displayed at, since there's no other reliable way to tell. |
|
foreach (@$nextUnfiltered) { |
foreach (@$nextUnfiltered) { |
if (!defined($self->{ALREADY_SEEN}->{$_->{ID}})) { |
if (!defined($self->{ALREADY_SEEN}->{$_->{ID}})) { |
push @$next, $_; |
push @$next, $_; |
$_->{DATA}->{ITERATOR_DEPTH} = |
|
$self->{BRANCH_DEPTH} + 1; |
|
} |
} |
} |
} |
|
|
# Handle branch cases: |
|
# Nothing is available next: BRANCH_END |
|
# 1 thing next: standard non-branch |
|
# 2+ things next: have some branches |
|
my $nextCount = scalar(@$next); |
|
if ($nextCount == 0) { |
|
# Return this and on the next run, close the branch up if we're |
|
# in a branch |
|
if ($self->{BRANCH_DEPTH} > 0 ) { |
|
$self->{FORCE_NEXT} = $self->END_BRANCH(); |
|
$self->{BRANCH_DEPTH}--; |
|
} |
|
} |
|
|
|
while (@$next) { |
while (@$next) { |
# copy the next possibilities over to the branch stack |
# copy the next possibilities over to the stack |
# in the right order |
push @{$self->{STACK}}, shift @$next; |
push @{$self->{BRANCH_STACK}}, shift @$next; |
|
} |
|
|
|
if ($nextCount >= 2) { |
|
$self->{FORCE_NEXT} = $self->BEGIN_BRANCH(); |
|
$self->{BRANCH_DEPTH}++; |
|
return $self->{HERE}; |
|
} |
} |
|
|
# If this is a map and we want to recurse down it... (not filtered out) |
# If this is a map and we want to recurse down it... (not filtered out) |
Line 1949 sub next {
|
Line 1681 sub next {
|
my $finishResource = $self->{HERE}->map_finish(); |
my $finishResource = $self->{HERE}->map_finish(); |
|
|
$self->{RECURSIVE_ITERATOR} = |
$self->{RECURSIVE_ITERATOR} = |
Apache::lonnavmaps::iterator->new ($self->{NAV_MAP}, $firstResource, |
Apache::lonnavmaps::DFSiterator->new ($self->{NAV_MAP}, $firstResource, |
$finishResource, $self->{FILTER}, $self->{ALREADY_SEEN}, |
$finishResource, $self->{FILTER}, $self->{ALREADY_SEEN}, |
$self->{CONDITION}); |
$self->{CONDITION}, $self->{DIRECTION}); |
} |
} |
|
|
return $self->{HERE}; |
return $self->{HERE}; |
} |
} |
|
|
=pod |
|
|
|
The other method available on the iterator is B<getStack>, which returns an array populated with the current 'stack' of maps, as references to the resource objects. Example: This is useful when making the navigation map, as we need to check whether we are under a page map to see if we need to link directly to the resource, or to the page. The first elements in the array will correspond to the top of the stack (most inclusive map). |
|
|
|
=cut |
|
|
|
sub getStack { |
|
my $self=shift; |
|
|
|
my @stack; |
|
|
|
$self->populateStack(\@stack); |
|
|
|
return \@stack; |
|
} |
|
|
|
# Private method: Calls the iterators recursively to populate the stack. |
|
sub populateStack { |
|
my $self=shift; |
|
my $stack = shift; |
|
|
|
push @$stack, $self->{HERE}; |
|
|
|
if ($self->{RECURSIVE_ITERATOR_FLAG}) { |
|
$self->{RECURSIVE_ITERATOR}->populateStack($stack); |
|
} |
|
} |
|
|
|
1; |
1; |
|
|
package Apache::lonnavmaps::resource; |
package Apache::lonnavmaps::resource; |
Line 2074 These are methods that help you retrieve
|
Line 1778 These are methods that help you retrieve
|
|
|
=item * B<to>: Returns the "to" value from the compiled nav map. (It is likely you want to use B<getNext> instead.) |
=item * B<to>: Returns the "to" value from the compiled nav map. (It is likely you want to use B<getNext> instead.) |
|
|
=item * B<type>: Returns the type of the resource, "start", "normal", or "finish". |
|
|
|
=back |
=back |
|
|
=cut |
=cut |
|
|
# These info functions can be used directly, as they don't return |
# These info functions can be used directly, as they don't return |
# resource information. |
# resource information. |
|
sub comesfrom { my $self=shift; return $self->navHash("comesfrom_", 1); } |
sub ext { my $self=shift; return $self->navHash("ext_", 1) eq 'true:'; } |
sub ext { my $self=shift; return $self->navHash("ext_", 1) eq 'true:'; } |
|
sub from { my $self=shift; return $self->navHash("from_", 1); } |
sub goesto { my $self=shift; return $self->navHash("goesto_", 1); } |
sub goesto { my $self=shift; return $self->navHash("goesto_", 1); } |
sub kind { my $self=shift; return $self->navHash("kind_", 1); } |
sub kind { my $self=shift; return $self->navHash("kind_", 1); } |
sub randomout { my $self=shift; return $self->navHash("randomout_", 1); } |
sub randomout { my $self=shift; return $self->navHash("randomout_", 1); } |
Line 2105 sub symb {
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Line 1809 sub symb {
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} |
} |
sub title { my $self=shift; return $self->navHash("title_", 1); } |
sub title { my $self=shift; return $self->navHash("title_", 1); } |
sub to { my $self=shift; return $self->navHash("to_", 1); } |
sub to { my $self=shift; return $self->navHash("to_", 1); } |
sub type { my $self=shift; return $self->navHash("type_", 1); } |
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=pod |
=pod |
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Line 2321 sub getReturnHash {
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Line 2024 sub getReturnHash {
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my $self = shift; |
my $self = shift; |
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if (!defined($self->{RETURN_HASH})) { |
if (!defined($self->{RETURN_HASH})) { |
my %tmpHash = &Apache::lonnet::restore($self->symb()); |
my %tmpHash = &Apache::lonnet::restore($self->symb()); |
$self->{RETURN_HASH} = \%tmpHash; |
$self->{RETURN_HASH} = \%tmpHash; |
} |
} |
} |
} |
Line 2367 sub hasDiscussion {
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Line 2070 sub hasDiscussion {
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sub getFeedback { |
sub getFeedback { |
my $self = shift; |
my $self = shift; |
return $self->{NAV_MAP}->getFeedback($self->symb()); |
return $self->{NAV_MAP}->getFeedback($self->src()); |
} |
} |
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=pod |
=pod |
Line 2412 sub extractParts {
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Line 2115 sub extractParts {
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$self->{PARTS} = []; |
$self->{PARTS} = []; |
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# Retrieve part count |
# Retrieve part count, if this is a problem |
my $metadata = &Apache::lonnet::metadata($self->src(), 'allpossiblekeys'); |
if ($self->is_problem()) { |
if (!$metadata) { |
my $metadata = &Apache::lonnet::metadata($self->src(), 'allpossiblekeys'); |
$self->{RESOURCE_ERROR} = 1; |
if (!$metadata) { |
$self->{PARTS} = []; |
$self->{RESOURCE_ERROR} = 1; |
return; |
$self->{PARTS} = []; |
} |
return; |
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foreach (split(/\,/,$metadata)) { |
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if ($_ =~ /^parameter\_(.*)\_opendate$/) { |
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push @{$self->{PARTS}}, $1; |
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} |
} |
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foreach (split(/\,/,$metadata)) { |
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if ($_ =~ /^parameter\_(.*)\_opendate$/) { |
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push @{$self->{PARTS}}, $1; |
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} |
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} |
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# Is this possible to do in one line? - Jeremy |
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my @sortedParts = sort @{$self->{PARTS}}; |
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$self->{PARTS} = \@sortedParts; |
} |
} |
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# Is this possible to do in one line? - Jeremy |
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my @sortedParts = sort @{$self->{PARTS}}; |
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$self->{PARTS} = \@sortedParts; |
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return; |
return; |
} |
} |
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Line 2679 sub status {
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Line 2384 sub status {
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# If it's WRONG... |
# If it's WRONG... |
if ($completionStatus == INCORRECT || $completionStatus == INCORRECT_BY_OVERRIDE) { |
if ($completionStatus == INCORRECT || $completionStatus == INCORRECT_BY_OVERRIDE) { |
# and there are TRIES LEFT: |
# and there are TRIES LEFT: |
if ($self->tries() < $self->maxtries()) { |
if ($self->tries($part) < $self->maxtries($part) || !$self->maxtries($part)) { |
return TRIES_LEFT; |
return TRIES_LEFT; |
} |
} |
return INCORRECT; # otherwise, return orange; student can't fix this |
return INCORRECT; # otherwise, return orange; student can't fix this |
Line 2695 sub status {
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Line 2400 sub status {
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=over 4 |
=over 4 |
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=item * B<getNext>(): Gets the next resource in the navmap after this one. |
=item * B<getNext>($alreadySeenHashRef): Retreive an array of the possible next resources after this one. Always returns an array, even in the one- or zero-element case. The "alreadySeenHashRef" is an optional parameter that can be passed in to the method. If $$alreadySeenHashRef{$res->id()} is true in that hash, getNext will not return it in the list. In other words, you can use it to suppress resources you've already seen in the getNext method directly. |
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=cut |
=item * B<getPrevious>($alreadySeenHashRef): Retreive an array of the possible previous resources from this one. Always returns an array, even in the one- or zero-element case. $alreadySeenHashRef is the same as in getNext. |
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# For the simple single-link case, to get from a resource to the next |
=cut |
# resource, you need to look up the "to_" link in the nav hash, then |
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# follow that with the "goesto_" link. |
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sub getNext { |
sub getNext { |
my $self = shift; |
my $self = shift; |
my $alreadySeenHash = shift; |
my $alreadySeenHash = shift; |
my @branches; |
my @branches; |
my $to = $self->to(); |
my $to = $self->to(); |
foreach my $branch ( split(/\,/, $to) ) { |
foreach my $branch ( split(/,/, $to) ) { |
my $choice = $self->{NAV_MAP}->getById($branch); |
my $choice = $self->{NAV_MAP}->getById($branch); |
my $next = $choice->goesto(); |
my $next = $choice->goesto(); |
$next = $self->{NAV_MAP}->getById($next); |
$next = $self->{NAV_MAP}->getById($next); |
Line 2724 sub getNext {
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Line 2427 sub getNext {
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} |
} |
return \@branches; |
return \@branches; |
} |
} |
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sub getPrevious { |
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my $self = shift; |
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my $alreadySeenHash = shift; |
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my @branches; |
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my $from = $self->from(); |
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foreach my $branch ( split /,/, $from) { |
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my $choice = $self->{NAV_MAP}->getById($branch); |
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my $prev = $choice->comesfrom(); |
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$prev = $self->{NAV_MAP}->getById($prev); |
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# Skip it if we've already seen it or the user doesn't have |
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# browse privs |
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my $browsePriv = &Apache::lonnet::allowed('bre', $self->src); |
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if (!defined($alreadySeenHash) || |
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!defined($alreadySeenHash->{$prev->{ID}}) || |
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($browsePriv ne '2' && $browsePriv ne 'F')) { |
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push @branches, $prev; |
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} |
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} |
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return \@branches; |
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} |
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=pod |
=pod |
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