version 1.3, 2004/02/13 18:34:40
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version 1.30, 2004/11/08 15:14:52
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Line 40 routines that are needed across multiple
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Line 40 routines that are needed across multiple
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=head1 OVERVIEW |
=head1 OVERVIEW |
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=over 4 |
=over 4 |
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=cut |
=cut |
Line 59 use Apache::lonlocal;
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Line 58 use Apache::lonlocal;
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use HTML::Entities(); |
use HTML::Entities(); |
use Time::Local(); |
use Time::Local(); |
use Spreadsheet::WriteExcel(); |
use Spreadsheet::WriteExcel(); |
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use GDBM_File; |
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use Storable qw(freeze thaw); |
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#################################################### |
#################################################### |
#################################################### |
#################################################### |
Line 107 all option response and radiobutton prob
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Line 108 all option response and radiobutton prob
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Returns: A string containing html for a table which lists the sequences |
Returns: A string containing html for a table which lists the sequences |
and their contents. A radiobutton is provided for each problem. |
and their contents. A radiobutton is provided for each problem. |
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Skips 'survey' problems. |
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=cut |
=cut |
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Line 116 sub ProblemSelector {
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Line 118 sub ProblemSelector {
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my ($AcceptedResponseTypes) = @_; |
my ($AcceptedResponseTypes) = @_; |
my $Str; |
my $Str; |
$Str = "\n<table>\n"; |
$Str = "\n<table>\n"; |
foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { |
my $rb_count =0; |
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foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess('all')) { |
next if ($seq->{'num_assess'}<1); |
next if ($seq->{'num_assess'}<1); |
my $seq_str = ''; |
my $seq_str = ''; |
foreach my $res (@{$seq->{'contents'}}) { |
foreach my $res (@{$seq->{'contents'}}) { |
Line 139 sub ProblemSelector {
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Line 142 sub ProblemSelector {
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if (! defined($title) || $title eq '') { |
if (! defined($title) || $title eq '') { |
($title) = ($res->{'src'} =~ m:/([^/]*)$:); |
($title) = ($res->{'src'} =~ m:/([^/]*)$:); |
} |
} |
$seq_str .= '<tr><td>'. |
$seq_str .= '<tr>'. |
'<input type="radio" name="problemchoice" value="'.$value.'" '.$checked.'/>'. |
qq{<td><input type="radio" id="$rb_count" name="problemchoice" value="$value" $checked /></td>}. |
'</td><td>'. |
'<td><label for="'.$rb_count.'">'.$resptype.'</label></td>'. |
$resptype.'</td><td>'. |
'<td><label for="'.$rb_count.'">'.$title.'</label>'; |
'<a href="'.$res->{'src'}.'">'.$title.'</a> '; |
if (scalar(@{$partdata->{'ResponseIds'}}) > 1) { |
# '<a href="'.$res->{'src'}.'">'.$resptype.' '.$res->{'title'}.'</a> '; |
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if ($partdata->{'option'} > 1) { |
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$seq_str .= &mt('response').' '.$respid; |
$seq_str .= &mt('response').' '.$respid; |
} |
} |
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$seq_str .= (' 'x2). |
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qq{<a target="preview" href="$res->{'src'}">view</a>}; |
$seq_str .= "</td></tr>\n"; |
$seq_str .= "</td></tr>\n"; |
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$rb_count++; |
} |
} |
} |
} |
} |
} |
Line 167 sub ProblemSelector {
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Line 171 sub ProblemSelector {
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=pod |
=pod |
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=item &MultipleProblemSelector($navmap,$selected,$inputname) |
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Generate HTML with checkboxes for problem selection. |
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Input: |
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$navmap: a navmap object. If undef, navmaps will be called to create a |
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new object. |
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$selected: Scalar, Array, or hash reference of currently selected items. |
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$inputname: The name of the form elements to use for the checkboxs. |
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Returns: A string containing html for a table which lists the sequences |
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and their contents. A checkbox is provided for each problem. |
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=cut |
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#################################################### |
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#################################################### |
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sub MultipleProblemSelector { |
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my ($navmap,$inputname,$formname)=@_; |
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my $cid = $ENV{'request.course.id'}; |
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my $Str; |
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# Massage the input as needed. |
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if (! defined($navmap)) { |
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$navmap = Apache::lonnavmaps::navmap->new(); |
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if (! defined($navmap)) { |
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$Str .= |
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'<h1>'.&mt('Error: cannot process course structure').'</h1>'; |
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return $Str; |
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} |
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} |
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my $selected = {map { ($_,1) } (&get_selected_symbs($inputname))}; |
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# Header |
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$Str .= <<"END"; |
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<script language="JavaScript" type="text/javascript"> |
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function checkall(value,seqid) { |
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for (i=0; i<document.forms.$formname.elements.length; i++) { |
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ele = document.forms.$formname.elements[i]; |
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if (ele.name == '$inputname') { |
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if (seqid != null) { |
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itemid = document.forms.$formname.elements[i].id; |
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thing = itemid.split(':'); |
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if (thing[0] == seqid) { |
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document.forms.$formname.elements[i].checked=value; |
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} |
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} else { |
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document.forms.$formname.elements[i].checked=value; |
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} |
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} |
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} |
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} |
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</script> |
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END |
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$Str .= |
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'<a href="javascript:checkall(true)">'.&mt('Select All').'</a>'. |
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(' 'x4). |
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'<a href="javascript:checkall(false)">'.&mt('Unselect All').'</a>'; |
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$Str .= $/.'<table>'.$/; |
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my $iterator = $navmap->getIterator(undef, undef, undef, 1); |
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my $sequence_string; |
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my $seq_id = 0; |
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my @Accumulator = (&new_accumulator($ENV{'course.'.$cid.'.description'}, |
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'', |
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'', |
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$seq_id++, |
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$inputname)); |
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my @Sequence_Data; |
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while (my $curRes = $iterator->next()) { |
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if ($curRes == $iterator->END_MAP) { |
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if (ref($Accumulator[-1]) eq 'CODE') { |
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my $old_accumulator = pop(@Accumulator); |
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push(@Sequence_Data,&{$old_accumulator}()); |
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} |
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} elsif ($curRes == $iterator->BEGIN_MAP) { |
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# Not much to do here. |
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} |
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next if (! ref($curRes)); |
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if ($curRes->is_map) { |
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push(@Accumulator,&new_accumulator($curRes->compTitle, |
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$curRes->src, |
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$curRes->symb, |
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$seq_id++, |
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$inputname)); |
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} elsif ($curRes->is_problem) { |
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if (@Accumulator && $Accumulator[-1] ne '') { |
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&{$Accumulator[-1]}($curRes, |
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exists($selected->{$curRes->symb})); |
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} |
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} |
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} |
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my $course_seq = pop(@Sequence_Data); |
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foreach my $seq ($course_seq,@Sequence_Data) { |
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#my $seq = pop(@Sequence_Data); |
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next if (! defined($seq) || ref($seq) ne 'HASH'); |
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$Str.= '<tr><td colspan="2">'. |
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'<b>'.$seq->{'title'}.'</b>'.(' 'x2). |
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'<a href="javascript:checkall(true,'.$seq->{'id'}.')">'. |
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&mt('Select').'</a>'.(' 'x2). |
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'<a href="javascript:checkall(false,'.$seq->{'id'}.')">'. |
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&mt('Unselect').'</a>'.(' 'x2). |
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'</td></tr>'.$/; |
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$Str.= $seq->{'html'}; |
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} |
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$Str .= '</table>'.$/; |
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return $Str; |
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} |
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sub get_title { |
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my ($title,$src) = @_; |
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if ($title eq '') { |
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($title) = ($src =~ m|/([^/]+)$|); |
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} else { |
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$title =~ s/\:/:/g; |
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} |
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return $title; |
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} |
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sub new_accumulator { |
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my ($title,$src,$symb,$seq_id,$inputname) = @_; |
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my $target; |
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my $item_id=0; |
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return |
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sub { |
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if (@_) { |
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my ($res,$checked) = @_; |
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$target.='<tr><td><label>'. |
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'<input type="checkbox" name="'.$inputname.'" '; |
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if ($checked) { |
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$target .= 'checked '; |
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} |
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$target .= 'id="'.$seq_id.':'.$item_id++.'" '; |
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$target.= |
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'value="'.&Apache::lonnet::escape($res->symb).'" />'. |
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' '.$res->compTitle.'</label>'. |
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(' 'x2).'<a target="preview" '. |
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'href="'.$res->src.'">view</a>'. |
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'</td></tr>'.$/; |
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} else { |
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if (defined($target)) { |
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return { title => $title, |
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symb => $symb, |
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src => $src, |
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id => $seq_id, |
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html => $target, }; |
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} |
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return undef; |
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} |
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}; |
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} |
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sub get_selected_symbs { |
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my ($inputfield) = @_; |
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my $field = 'form.'.$inputfield; |
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my @Symbs; |
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if (exists($ENV{$field})) { |
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if (! ref($ENV{$field})) { |
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@Symbs = (&Apache::lonnet::unescape($ENV{$field})); |
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} else { |
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@Symbs = (map {&Apache::lonnet::unescape($_);} @{$ENV{$field}}); |
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} |
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} |
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return @Symbs; |
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} |
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#################################################### |
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#################################################### |
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=pod |
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=item &make_target_id($target) |
=item &make_target_id($target) |
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Inputs: Hash ref with the following entries: |
Inputs: Hash ref with the following entries: |
Line 210 Returns: A hash reference, $target, cont
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Line 385 Returns: A hash reference, $target, cont
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#################################################### |
#################################################### |
sub get_target_from_id { |
sub get_target_from_id { |
my ($id) = @_; |
my ($id) = @_; |
my ($symb,$part,$respid,$resptype) = split(':',$id); |
if (! ref($id)) { |
return ({ symb =>&Apache::lonnet::unescape($symb), |
my ($symb,$part,$respid,$resptype) = split(':',$id); |
part =>&Apache::lonnet::unescape($part), |
return ({ symb => &Apache::lonnet::unescape($symb), |
respid =>&Apache::lonnet::unescape($respid), |
part => &Apache::lonnet::unescape($part), |
resptype =>&Apache::lonnet::unescape($resptype)}); |
respid => &Apache::lonnet::unescape($respid), |
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resptype => &Apache::lonnet::unescape($resptype)}); |
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} elsif (ref($id) eq 'ARRAY') { |
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my @Return; |
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foreach my $selected (@$id) { |
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my ($symb,$part,$respid,$resptype) = split(':',$selected); |
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push(@Return,{ symb => &Apache::lonnet::unescape($symb), |
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part => &Apache::lonnet::unescape($part), |
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respid => &Apache::lonnet::unescape($respid), |
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resptype => &Apache::lonnet::unescape($resptype)}); |
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} |
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return \@Return; |
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} |
} |
} |
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#################################################### |
#################################################### |
Line 222 sub get_target_from_id {
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Line 409 sub get_target_from_id {
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=pod |
=pod |
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=item &get_prev_curr_next($target) |
=item &get_prev_curr_next($target,$AcceptableResponseTypes,$granularity) |
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Determine the problem parts or responses preceeding and following the |
Determine the problem parts or responses preceeding and following the |
current resource. |
current resource. |
Line 230 current resource.
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Line 417 current resource.
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Inputs: $target (see &Apache::lonstathelpers::get_target_from_id()) |
Inputs: $target (see &Apache::lonstathelpers::get_target_from_id()) |
$AcceptableResponseTypes, regular expression matching acceptable |
$AcceptableResponseTypes, regular expression matching acceptable |
response types, |
response types, |
$granularity, either 'part' or 'response' |
$granularity, either 'part', 'response', or 'part_survey' |
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Returns: three hash references, $prev, $curr, $next, which refer to the |
Returns: three hash references, $prev, $curr, $next, which refer to the |
preceeding, current, or following problem parts or responses, depending |
preceeding, current, or following problem parts or responses, depending |
Line 253 sub get_prev_curr_next {
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Line 440 sub get_prev_curr_next {
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# |
# |
# Build an array with the data we need to search through |
# Build an array with the data we need to search through |
my @Resource; |
my @Resource; |
foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { |
foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess('all')) { |
foreach my $res (@{$seq->{'contents'}}) { |
foreach my $res (@{$seq->{'contents'}}) { |
next if ($res->{'type'} ne 'assessment'); |
next if ($res->{'type'} ne 'assessment'); |
foreach my $part (@{$res->{'parts'}}) { |
foreach my $part (@{$res->{'parts'}}) { |
my $partdata = $res->{'partdata'}->{$part}; |
my $partdata = $res->{'partdata'}->{$part}; |
if ($granularity eq 'part') { |
if ($partdata->{'Survey'} && ($granularity eq 'part_survey')){ |
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push (@Resource, |
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{ symb => $res->{symb}, |
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part => $part, |
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resource => $res, |
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} ); |
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} elsif ($granularity eq 'part') { |
push (@Resource, |
push (@Resource, |
{ symb => $res->{symb}, |
{ symb => $res->{symb}, |
part => $part, |
part => $part, |
Line 288 sub get_prev_curr_next {
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Line 481 sub get_prev_curr_next {
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my $curr_idx; |
my $curr_idx; |
for ($curr_idx=0;$curr_idx<$#Resource;$curr_idx++) { |
for ($curr_idx=0;$curr_idx<$#Resource;$curr_idx++) { |
my $curr_item = $Resource[$curr_idx]; |
my $curr_item = $Resource[$curr_idx]; |
if ($granularity eq 'part') { |
if ($granularity eq 'part' || $granularity eq 'part_survey') { |
if ($curr_item->{'symb'} eq $target->{'symb'} && |
if ($curr_item->{'symb'} eq $target->{'symb'} && |
$curr_item->{'part'} eq $target->{'part'}) { |
$curr_item->{'part'} eq $target->{'part'}) { |
last; |
last; |
Line 303 sub get_prev_curr_next {
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Line 496 sub get_prev_curr_next {
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} |
} |
} |
} |
my $curr_item = $Resource[$curr_idx]; |
my $curr_item = $Resource[$curr_idx]; |
if ($granularity eq 'part') { |
if ($granularity eq 'part' || $granularity eq 'part_survey') { |
if ($curr_item->{'symb'} ne $target->{'symb'} || |
if ($curr_item->{'symb'} ne $target->{'symb'} || |
$curr_item->{'part'} ne $target->{'part'}) { |
$curr_item->{'part'} ne $target->{'part'}) { |
# bogus symb - return nothing |
# bogus symb - return nothing |
Line 337 sub get_prev_curr_next {
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Line 530 sub get_prev_curr_next {
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return ($prev,$curr,$next); |
return ($prev,$curr,$next); |
} |
} |
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##################################################### |
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##################################################### |
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=pod |
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=item GetStudentAnswers($r,$problem,$Students) |
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Determines the correct answer for a set of students on a given problem. |
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The students answers are stored in the student hashes pointed to by the |
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array @$Students under the key 'answer'. |
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Inputs: $r |
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$problem: hash reference containing the keys 'resource', 'part', and 'respid'. |
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$Students: reference to array containing student hashes (need 'username', |
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'domain'). |
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Returns: nothing |
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=cut |
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##################################################### |
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##################################################### |
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sub GetStudentAnswers { |
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my ($r,$problem,$Students,$formname,$inputname) = @_; |
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my $status_type; |
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if (defined($formname)) { |
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$status_type = 'inline'; |
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} else { |
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$status_type = 'popup'; |
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} |
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my $c = $r->connection(); |
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my %Answers; |
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my ($resource,$partid,$respid) = ($problem->{'resource'}, |
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$problem->{'part'}, |
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$problem->{'respid'}); |
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# Read in the cache (if it exists) before we start timing things. |
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&Apache::lonstathelpers::ensure_proper_cache($resource->{'symb'}); |
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# Open progress window |
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my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin |
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($r,'Student Answer Compilation Status', |
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'Student Answer Compilation Progress', scalar(@$Students), |
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$status_type,undef,$formname,$inputname); |
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$r->rflush(); |
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foreach my $student (@$Students) { |
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last if ($c->aborted()); |
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my $sname = $student->{'username'}; |
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my $sdom = $student->{'domain'}; |
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my $answer = &Apache::lonstathelpers::get_student_answer |
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($resource,$sname,$sdom,$partid,$respid); |
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&Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state, |
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&mt('last student')); |
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$student->{'answer'} = $answer; |
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} |
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&Apache::lonstathelpers::write_analysis_cache(); |
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return if ($c->aborted()); |
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$r->rflush(); |
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# close progress window |
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&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
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return; |
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} |
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##################################################### |
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##################################################### |
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=pod |
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=item analyze_problem_as_student |
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Analyzes a homework problem for a student |
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Inputs: $resource: a resource object |
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$sname, $sdom, $partid, $respid |
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Returns: the problem analysis hash |
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=cut |
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##################################################### |
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##################################################### |
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sub analyze_problem_as_student { |
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my ($resource,$sname,$sdom) = @_; |
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if (ref($resource) ne 'HASH') { |
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my $res = $resource; |
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$resource = { 'src' => $res->src, |
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'symb' => $res->symb, |
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'parts' => $res->parts }; |
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foreach my $part (@{$resource->{'parts'}}) { |
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$resource->{'partdata'}->{$part}->{'ResponseIds'}= |
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[$res->responseIds($part)]; |
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} |
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} |
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my $url = $resource->{'src'}; |
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my $symb = $resource->{'symb'}; |
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my $analysis = &get_from_analysis_cache($sname,$sdom,$symb); |
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if (! defined($analysis)) { |
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my $courseid = $ENV{'request.course.id'}; |
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my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze', |
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'grade_domain' => $sdom, |
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'grade_username' => $sname, |
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'grade_symb' => $symb, |
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'grade_courseid' => $courseid)); |
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(my $garbage,$analysis)=split(/_HASH_REF__/,$Answ,2); |
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&store_analysis($sname,$sdom,$symb,$analysis); |
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} |
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my %Answer=&Apache::lonnet::str2hash($analysis); |
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# |
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return \%Answer; |
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} |
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##################################################### |
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##################################################### |
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=pod |
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=item get_student_answer |
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Analyzes a homework problem for a particular student and returns the correct |
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answer. Attempts to put together an answer for problem types |
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that do not natively support it. |
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Inputs: $resource: a resource object (from navmaps or hash from loncoursedata) |
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$sname, $sdom, $partid, $respid |
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Returns: $answer |
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If $partid and $respid are specified, $answer is simply a scalar containing |
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the correct answer for the response. |
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If $partid or $respid are undefined, $answer will be a hash reference with |
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keys $partid.'.'.$respid.'.answer'. |
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=cut |
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##################################################### |
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##################################################### |
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sub get_student_answer { |
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my ($resource,$sname,$sdom,$partid,$respid) = @_; |
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# |
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if (ref($resource) ne 'HASH') { |
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my $res = $resource; |
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$resource = { 'src' => $res->src, |
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'symb' => $res->symb, |
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'parts' => $res->parts }; |
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foreach my $part (@{$resource->{'parts'}}) { |
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$resource->{'partdata'}->{$part}->{'ResponseIds'}= |
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[$res->responseIds($part)]; |
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} |
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} |
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# |
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my $analysis = |
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&analyze_problem_as_student($resource,$sname,$sdom); |
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my $answer; |
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foreach my $partid (@{$resource->{'parts'}}) { |
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my $partdata = $resource->{'partdata'}->{$partid}; |
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foreach my $respid (@{$partdata->{'ResponseIds'}}) { |
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my $prefix = $partid.'.'.$respid; |
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my $key = $prefix.'.answer'; |
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$answer->{$partid}->{$respid} = |
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&get_answer($prefix,$key,%$analysis); |
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} |
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} |
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my $returnvalue; |
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if (! defined($partid)) { |
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$returnvalue = $answer; |
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} elsif (! defined($respid)) { |
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$returnvalue = $answer->{$partid}; |
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} else { |
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$returnvalue = $answer->{$partid}->{$respid}; |
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} |
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return $returnvalue; |
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} |
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sub get_answer { |
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my ($prefix,$key,%Answer) = @_; |
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my $returnvalue; |
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if (exists($Answer{$key})) { |
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my $student_answer = $Answer{$key}->[0]; |
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if (! defined($student_answer)) { |
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$student_answer = $Answer{$key}->[1]; |
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} |
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$returnvalue = $student_answer; |
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} else { |
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if (exists($Answer{$prefix.'.shown'})) { |
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# The response has foils |
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my %values; |
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while (my ($k,$v) = each(%Answer)) { |
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next if ($k !~ /^$prefix\.foil\.(value|area)\.(.*)$/); |
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my $foilname = $2; |
|
$values{$foilname}=$v; |
|
} |
|
foreach my $foil (@{$Answer{$prefix.'.shown'}}) { |
|
if (ref($values{$foil}) eq 'ARRAY') { |
|
$returnvalue.=&HTML::Entities::encode($foil,'<>&"').'='. |
|
join(',',map {&HTML::Entities::encode($_,'<>&"')} @{$values{$foil}}).'&'; |
|
} else { |
|
$returnvalue.=&HTML::Entities::encode($foil,'<>&"').'='. |
|
&HTML::Entities::encode($values{$foil},'<>&"').'&'; |
|
} |
|
} |
|
$returnvalue =~ s/ /\%20/g; |
|
chop ($returnvalue); |
|
} |
|
} |
|
return $returnvalue; |
|
} |
|
|
|
##################################################### |
|
##################################################### |
|
|
|
=pod |
|
|
|
=item Caching routines |
|
|
|
=over 4 |
|
|
|
=item &load_analysis_cache($symb) |
|
|
|
Loads the cache for the given symb into memory from disk. |
|
Requires the cache filename be set. |
|
Only should be called by &ensure_proper_cache. |
|
|
|
=cut |
|
|
|
##################################################### |
|
##################################################### |
|
{ |
|
my $cache_filename = undef; |
|
my $current_symb = undef; |
|
my %cache; |
|
|
|
sub load_analysis_cache { |
|
my ($symb) = @_; |
|
return if (! defined($cache_filename)); |
|
if (! defined($current_symb) || $current_symb ne $symb) { |
|
undef(%cache); |
|
my $storedstring; |
|
my %cache_db; |
|
if (tie(%cache_db,'GDBM_File',$cache_filename,&GDBM_READER(),0640)) { |
|
$storedstring = $cache_db{&Apache::lonnet::escape($symb)}; |
|
untie(%cache_db); |
|
} |
|
if (defined($storedstring)) { |
|
%cache = %{thaw($storedstring)}; |
|
} |
|
} |
|
return; |
|
} |
|
|
|
##################################################### |
|
##################################################### |
|
|
|
=pod |
|
|
|
=item &get_from_analysis_cache($sname,$sdom,$symb,$partid,$respid) |
|
|
|
Returns the appropriate data from the cache, or undef if no data exists. |
|
|
|
=cut |
|
|
|
##################################################### |
|
##################################################### |
|
sub get_from_analysis_cache { |
|
my ($sname,$sdom,$symb) = @_; |
|
&ensure_proper_cache($symb); |
|
my $returnvalue; |
|
if (exists($cache{$sname.':'.$sdom})) { |
|
$returnvalue = $cache{$sname.':'.$sdom}; |
|
} else { |
|
$returnvalue = undef; |
|
} |
|
return $returnvalue; |
|
} |
|
|
|
##################################################### |
|
##################################################### |
|
|
|
=pod |
|
|
|
=item &write_analysis_cache($symb) |
|
|
|
Writes the in memory cache to disk so that it can be read in with |
|
&load_analysis_cache($symb). |
|
|
|
=cut |
|
|
|
##################################################### |
|
##################################################### |
|
sub write_analysis_cache { |
|
return if (! defined($current_symb) || ! defined($cache_filename)); |
|
my %cache_db; |
|
my $key = &Apache::lonnet::escape($current_symb); |
|
if (tie(%cache_db,'GDBM_File',$cache_filename,&GDBM_WRCREAT(),0640)) { |
|
my $storestring = freeze(\%cache); |
|
$cache_db{$key}=$storestring; |
|
$cache_db{$key.'.time'}=time; |
|
untie(%cache_db); |
|
} |
|
undef(%cache); |
|
undef($current_symb); |
|
undef($cache_filename); |
|
return; |
|
} |
|
|
|
##################################################### |
|
##################################################### |
|
|
|
=pod |
|
|
|
=item &ensure_proper_cache($symb) |
|
|
|
Called to make sure we have the proper cache set up. This is called |
|
prior to every analysis lookup. |
|
|
|
=cut |
|
|
|
##################################################### |
|
##################################################### |
|
sub ensure_proper_cache { |
|
my ($symb) = @_; |
|
my $cid = $ENV{'request.course.id'}; |
|
my $new_filename = '/home/httpd/perl/tmp/'. |
|
'problemanalysis_'.$cid.'_analysis_cache.db'; |
|
if (! defined($cache_filename) || |
|
$cache_filename ne $new_filename || |
|
! defined($current_symb) || |
|
$current_symb ne $symb) { |
|
$cache_filename = $new_filename; |
|
# Notice: $current_symb is not set to $symb until after the cache is |
|
# loaded. This is what tells &load_analysis_cache to load in a new |
|
# symb cache. |
|
&load_analysis_cache($symb); |
|
$current_symb = $symb; |
|
} |
|
} |
|
|
|
##################################################### |
|
##################################################### |
|
|
|
=pod |
|
|
|
=item &store_analysis($sname,$sdom,$symb,$partid,$respid,$dataset) |
|
|
|
Stores the analysis data in the in memory cache. |
|
|
|
=cut |
|
|
|
##################################################### |
|
##################################################### |
|
sub store_analysis { |
|
my ($sname,$sdom,$symb,$dataset) = @_; |
|
return if ($symb ne $current_symb); |
|
$cache{$sname.':'.$sdom}=$dataset; |
|
return; |
|
} |
|
|
|
} |
|
##################################################### |
|
##################################################### |
|
|
|
=pod |
|
|
|
=back |
|
|
|
=cut |
|
|
|
##################################################### |
|
##################################################### |
|
|
|
## |
|
## The following is copied from datecalc1.pl, part of the |
|
## Spreadsheet::WriteExcel CPAN module. |
|
## |
|
## |
|
###################################################################### |
|
# |
|
# Demonstration of writing date/time cells to Excel spreadsheets, |
|
# using UNIX/Perl time as source of date/time. |
|
# |
|
# Copyright 2000, Andrew Benham, adsb@bigfoot.com |
|
# |
|
###################################################################### |
|
# |
|
# UNIX/Perl time is the time since the Epoch (00:00:00 GMT, 1 Jan 1970) |
|
# measured in seconds. |
|
# |
|
# An Excel file can use exactly one of two different date/time systems. |
|
# In these systems, a floating point number represents the number of days |
|
# (and fractional parts of the day) since a start point. The floating point |
|
# number is referred to as a 'serial'. |
|
# The two systems ('1900' and '1904') use different starting points: |
|
# '1900'; '1.00' is 1 Jan 1900 BUT 1900 is erroneously regarded as |
|
# a leap year - see: |
|
# http://support.microsoft.com/support/kb/articles/Q181/3/70.asp |
|
# for the excuse^H^H^H^H^H^Hreason. |
|
# '1904'; '1.00' is 2 Jan 1904. |
|
# |
|
# The '1904' system is the default for Apple Macs. Windows versions of |
|
# Excel have the option to use the '1904' system. |
|
# |
|
# Note that Visual Basic's "DateSerial" function does NOT erroneously |
|
# regard 1900 as a leap year, and thus its serials do not agree with |
|
# the 1900 serials of Excel for dates before 1 Mar 1900. |
|
# |
|
# Note that StarOffice (at least at version 5.2) does NOT erroneously |
|
# regard 1900 as a leap year, and thus its serials do not agree with |
|
# the 1900 serials of Excel for dates before 1 Mar 1900. |
|
# |
|
###################################################################### |
|
# |
|
# Calculation description |
|
# ======================= |
|
# |
|
# 1900 system |
|
# ----------- |
|
# Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 70 years after 1 Jan 1900. |
|
# Of those 70 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68) |
|
# were leap years with an extra day. |
|
# Thus there were 17 + 70*365 days = 25567 days between 1 Jan 1900 and |
|
# 1 Jan 1970. |
|
# In the 1900 system, '1' is 1 Jan 1900, but as 1900 was not a leap year |
|
# 1 Jan 1900 should really be '2', so 1 Jan 1970 is '25569'. |
|
# |
|
# 1904 system |
|
# ----------- |
|
# Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 66 years after 1 Jan 1904. |
|
# Of those 66 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68) |
|
# were leap years with an extra day. |
|
# Thus there were 17 + 66*365 days = 24107 days between 1 Jan 1904 and |
|
# 1 Jan 1970. |
|
# In the 1904 system, 2 Jan 1904 being '1', 1 Jan 1970 is '24107'. |
|
# |
|
###################################################################### |
|
# |
|
# Copyright (c) 2000, Andrew Benham. |
|
# This program is free software. It may be used, redistributed and/or |
|
# modified under the same terms as Perl itself. |
|
# |
|
# Andrew Benham, adsb@bigfoot.com |
|
# London, United Kingdom |
|
# 11 Nov 2000 |
|
# |
|
###################################################################### |
|
#----------------------------------------------------------- |
|
# calc_serial() |
|
# |
|
# Called with (up to) 2 parameters. |
|
# 1. Unix timestamp. If omitted, uses current time. |
|
# 2. GMT flag. Set to '1' to return serial in GMT. |
|
# If omitted, returns serial in appropriate timezone. |
|
# |
|
# Returns date/time serial according to $DATE_SYSTEM selected |
|
#----------------------------------------------------------- |
|
sub calc_serial { |
|
# Use 1900 date system on all platforms other than Apple Mac (for which |
|
# use 1904 date system). |
|
my $DATE_SYSTEM = ($^O eq 'MacOS') ? 1 : 0; |
|
my $time = (defined $_[0]) ? $_[0] : time(); |
|
my $gmtflag = (defined $_[1]) ? $_[1] : 0; |
|
# |
|
# Divide timestamp by number of seconds in a day. |
|
# This gives a date serial with '0' on 1 Jan 1970. |
|
my $serial = $time / 86400; |
|
# |
|
# Adjust the date serial by the offset appropriate to the |
|
# currently selected system (1900/1904). |
|
if ($DATE_SYSTEM == 0) { # use 1900 system |
|
$serial += 25569; |
|
} else { # use 1904 system |
|
$serial += 24107; |
|
} |
|
# |
|
unless ($gmtflag) { |
|
# Now have a 'raw' serial with the right offset. But this |
|
# gives a serial in GMT, which is false unless the timezone |
|
# is GMT. We need to adjust the serial by the appropriate |
|
# timezone offset. |
|
# Calculate the appropriate timezone offset by seeing what |
|
# the differences between localtime and gmtime for the given |
|
# time are. |
|
# |
|
my @gmtime = gmtime($time); |
|
my @ltime = localtime($time); |
|
# |
|
# For the first 7 elements of the two arrays, adjust the |
|
# date serial where the elements differ. |
|
for (0 .. 6) { |
|
my $diff = $ltime[$_] - $gmtime[$_]; |
|
if ($diff) { |
|
$serial += _adjustment($diff,$_); |
|
} |
|
} |
|
} |
|
# |
|
# Perpetuate the error that 1900 was a leap year by decrementing |
|
# the serial if we're using the 1900 system and the date is prior to |
|
# 1 Mar 1900. This has the effect of making serial value '60' |
|
# 29 Feb 1900. |
|
# |
|
# This fix only has any effect if UNIX/Perl time on the platform |
|
# can represent 1900. Many can't. |
|
# |
|
unless ($DATE_SYSTEM) { |
|
$serial-- if ($serial < 61); # '61' is 1 Mar 1900 |
|
} |
|
return $serial; |
|
} |
|
|
|
sub _adjustment { |
|
# Based on the difference in the localtime/gmtime array elements |
|
# number, return the adjustment required to the serial. |
|
# |
|
# We only look at some elements of the localtime/gmtime arrays: |
|
# seconds unlikely to be different as all known timezones |
|
# have an offset of integral multiples of 15 minutes, |
|
# but it's easy to do. |
|
# minutes will be different for timezone offsets which are |
|
# not an exact number of hours. |
|
# hours very likely to be different. |
|
# weekday will differ when localtime/gmtime difference |
|
# straddles midnight. |
|
# |
|
# Assume that difference between localtime and gmtime is less than |
|
# 5 days, then don't have to do maths for day of month, month number, |
|
# year number, etc... |
|
# |
|
my ($delta,$element) = @_; |
|
my $adjust = 0; |
|
# |
|
if ($element == 0) { # Seconds |
|
$adjust = $delta/86400; # 60 * 60 * 24 |
|
} elsif ($element == 1) { # Minutes |
|
$adjust = $delta/1440; # 60 * 24 |
|
} elsif ($element == 2) { # Hours |
|
$adjust = $delta/24; # 24 |
|
} elsif ($element == 6) { # Day of week number |
|
# Catch difference straddling Sat/Sun in either direction |
|
$delta += 7 if ($delta < -4); |
|
$delta -= 7 if ($delta > 4); |
|
# |
|
$adjust = $delta; |
|
} |
|
return $adjust; |
|
} |
|
|
|
########################################################### |
|
########################################################### |
|
|
|
=pod |
|
|
|
=item get_problem_data |
|
|
|
Returns a data structure describing the problem. |
|
|
|
Inputs: $url |
|
|
|
Returns: %Partdata |
|
|
|
=cut |
|
|
|
## note: we must force each foil and option to not begin or end with |
|
## spaces as they are stored without such data. |
|
## |
|
########################################################### |
|
########################################################### |
|
sub get_problem_data { |
|
my ($url) = @_; |
|
my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze')); |
|
(my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2); |
|
my %Answer; |
|
%Answer=&Apache::lonnet::str2hash($Answ); |
|
my %Partdata; |
|
foreach my $part (@{$Answer{'parts'}}) { |
|
while (my($key,$value) = each(%Answer)) { |
|
# |
|
# Logging code: |
|
if (0) { |
|
&Apache::lonnet::logthis($part.' got key "'.$key.'"'); |
|
if (ref($value) eq 'ARRAY') { |
|
&Apache::lonnet::logthis(' @'.join(',',@$value)); |
|
} else { |
|
&Apache::lonnet::logthis(' '.$value); |
|
} |
|
} |
|
# End of logging code |
|
next if ($key !~ /^$part/); |
|
$key =~ s/^$part\.//; |
|
if (ref($value) eq 'ARRAY') { |
|
if ($key eq 'options') { |
|
$Partdata{$part}->{'_Options'}=$value; |
|
} elsif ($key eq 'concepts') { |
|
$Partdata{$part}->{'_Concepts'}=$value; |
|
} elsif ($key eq 'items') { |
|
$Partdata{$part}->{'_Items'}=$value; |
|
} elsif ($key =~ /^concept\.(.*)$/) { |
|
my $concept = $1; |
|
foreach my $foil (@$value) { |
|
$Partdata{$part}->{'_Foils'}->{$foil}->{'_Concept'}= |
|
$concept; |
|
} |
|
} elsif ($key =~ /^(incorrect|answer|ans_low|ans_high|str_type)$/) { |
|
$Partdata{$part}->{$key}=$value; |
|
} |
|
} else { |
|
if ($key=~ /^foil\.text\.(.*)$/) { |
|
my $foil = $1; |
|
$Partdata{$part}->{'_Foils'}->{$foil}->{'name'}=$foil; |
|
$value =~ s/(\s*$|^\s*)//g; |
|
$Partdata{$part}->{'_Foils'}->{$foil}->{'text'}=$value; |
|
} elsif ($key =~ /^foil\.value\.(.*)$/) { |
|
my $foil = $1; |
|
$Partdata{$part}->{'_Foils'}->{$foil}->{'value'}=$value; |
|
} elsif ($key eq 'answercomputed') { |
|
$Partdata{$part}->{'answercomputed'} = $value; |
|
} |
|
} |
|
} |
|
} |
|
# Further debugging code |
|
if (0) { |
|
&Apache::lonnet::logthis('lonstathelpers::get_problem_data'); |
|
&log_hash_ref(\%Partdata); |
|
} |
|
return %Partdata; |
|
} |
|
|
|
sub log_array_ref { |
|
my ($arrayref,$prefix) = @_; |
|
return if (ref($arrayref) ne 'ARRAY'); |
|
if (! defined($prefix)) { $prefix = ''; }; |
|
foreach my $v (@$arrayref) { |
|
if (ref($v) eq 'ARRAY') { |
|
&log_array_ref($v,$prefix.' '); |
|
} elsif (ref($v) eq 'HASH') { |
|
&log_hash_ref($v,$prefix.' '); |
|
} else { |
|
&Apache::lonnet::logthis($prefix.'"'.$v.'"'); |
|
} |
|
} |
|
} |
|
|
|
sub log_hash_ref { |
|
my ($hashref,$prefix) = @_; |
|
return if (ref($hashref) ne 'HASH'); |
|
if (! defined($prefix)) { $prefix = ''; }; |
|
while (my ($k,$v) = each(%$hashref)) { |
|
if (ref($v) eq 'ARRAY') { |
|
&Apache::lonnet::logthis($prefix.'"'.$k.'" = array'); |
|
&log_array_ref($v,$prefix.' '); |
|
} elsif (ref($v) eq 'HASH') { |
|
&Apache::lonnet::logthis($prefix.'"'.$k.'" = hash'); |
|
&log_hash_ref($v,$prefix.' '); |
|
} else { |
|
&Apache::lonnet::logthis($prefix.'"'.$k.'" => "'.$v.'"'); |
|
} |
|
} |
|
} |
|
#################################################### |
|
#################################################### |
|
|
|
=pod |
|
|
|
=item &limit_by_time() |
|
|
|
=cut |
|
|
|
#################################################### |
|
#################################################### |
|
sub limit_by_time_form { |
|
my $Starttime_form = ''; |
|
my $starttime = &Apache::lonhtmlcommon::get_date_from_form |
|
('limitby_startdate'); |
|
my $endtime = &Apache::lonhtmlcommon::get_date_from_form |
|
('limitby_enddate'); |
|
if (! defined($endtime)) { |
|
$endtime = time; |
|
} |
|
if (! defined($starttime)) { |
|
$starttime = $endtime - 60*60*24*7; |
|
} |
|
my $state; |
|
if (&limit_by_time()) { |
|
$state = ''; |
|
} else { |
|
$state = 'disabled'; |
|
} |
|
my $startdateform = &Apache::lonhtmlcommon::date_setter |
|
('Statistics','limitby_startdate',$starttime,undef,undef,$state); |
|
my $enddateform = &Apache::lonhtmlcommon::date_setter |
|
('Statistics','limitby_enddate',$endtime,undef,undef,$state); |
|
my $Str; |
|
$Str .= '<script language="Javascript" >'; |
|
$Str .= 'function toggle_limitby_activity(state) {'; |
|
$Str .= ' if (state) {'; |
|
$Str .= ' limitby_startdate_enable();'; |
|
$Str .= ' limitby_enddate_enable();'; |
|
$Str .= ' } else {'; |
|
$Str .= ' limitby_startdate_disable();'; |
|
$Str .= ' limitby_enddate_disable();'; |
|
$Str .= ' }'; |
|
$Str .= '}'; |
|
$Str .= '</script>'; |
|
$Str .= '<fieldset>'; |
|
my $timecheckbox = '<input type="checkbox" name="limit_by_time" '; |
|
if (&limit_by_time()) { |
|
$timecheckbox .= ' checked '; |
|
} |
|
$timecheckbox .= 'OnChange="javascript:toggle_limitby_activity(this.checked);" '; |
|
$timecheckbox .= ' />'; |
|
$Str .= '<legend>'.&mt('[_1] Limit by time',$timecheckbox).'</legend>'; |
|
$Str .= &mt('Start Time: [_1]',$startdateform).'<br />'; |
|
$Str .= &mt(' End Time: [_1]',$enddateform).'<br />'; |
|
$Str .= '</fieldset>'; |
|
return $Str; |
|
} |
|
|
|
sub limit_by_time { |
|
if (exists($ENV{'form.limit_by_time'}) && |
|
$ENV{'form.limit_by_time'} ne '' ) { |
|
return 1; |
|
} else { |
|
return 0; |
|
} |
|
} |
|
|
|
sub get_time_limits { |
|
my $starttime = &Apache::lonhtmlcommon::get_date_from_form |
|
('limitby_startdate'); |
|
my $endtime = &Apache::lonhtmlcommon::get_date_from_form |
|
('limitby_enddate'); |
|
return ($starttime,$endtime); |
|
} |
|
|
|
|
|
|
|
#################################################### |
|
#################################################### |
|
|
|
=pod |
|
|
|
=item sections_description |
|
|
|
Inputs: @Sections, an array of sections |
|
|
|
Returns: A text description of the sections selected. |
|
|
|
=cut |
|
|
|
#################################################### |
|
#################################################### |
|
sub sections_description { |
|
my @Sections = @_; |
|
my $sectionstring = ''; |
|
if (scalar(@Sections) > 1) { |
|
if (scalar(@Sections) > 2) { |
|
my $last = pop(@Sections); |
|
$sectionstring = "Sections ".join(', ',@Sections).', and '.$last; |
|
} else { |
|
$sectionstring = "Sections ".join(' and ',@Sections); |
|
} |
|
} else { |
|
if ($Sections[0] eq 'all') { |
|
$sectionstring = "All sections"; |
|
} else { |
|
$sectionstring = "Section ".$Sections[0]; |
|
} |
|
} |
|
return $sectionstring; |
|
} |
|
|
|
#################################################### |
|
#################################################### |
|
|
|
=pod |
|
|
|
=item &manage_caches |
|
|
|
Inputs: $r, apache request object |
|
|
|
Returns: An array of scalars containing html for buttons. |
|
|
|
=cut |
|
|
|
#################################################### |
|
#################################################### |
|
sub manage_caches { |
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my ($r,$formname,$inputname,$update_message) = @_; |
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&Apache::loncoursedata::clear_internal_caches(); |
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my $sectionkey = |
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join(',', |
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map { |
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&Apache::lonnet::escape($_); |
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} sort(@Apache::lonstatistics::SelectedSections) |
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); |
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my $statuskey = $Apache::lonstatistics::enrollment_status; |
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if (exists($ENV{'form.ClearCache'}) || |
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exists($ENV{'form.updatecaches'}) || |
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(exists($ENV{'form.firstrun'}) && $ENV{'form.firstrun'} ne 'no') || |
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(exists($ENV{'form.prevsection'}) && |
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$ENV{'form.prevsection'} ne $sectionkey) || |
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(exists($ENV{'form.prevenrollstatus'}) && |
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$ENV{'form.prevenrollstatus'} ne $statuskey) |
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) { |
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if (defined($update_message)) { |
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$r->print($update_message); |
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} |
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&Apache::lonstatistics::Gather_Full_Student_Data($r,$formname, |
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$inputname); |
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|
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} |
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# |
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my @Buttons = |
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('<input type="submit" name="ClearCache" '. |
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'value="'.&mt('Clear Caches').'" />', |
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'<input type="submit" name="updatecaches" '. |
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'value="'.&mt('Update Caches').'" />'. |
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&Apache::loncommon::help_open_topic('Statistics_Cache'), |
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'<input type="hidden" name="prevsection" value="'.$sectionkey.'" />', |
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'<input type="hidden" name="prevenrollstatus" value="'.$statuskey.'" />' |
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); |
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# |
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if (! exists($ENV{'form.firstrun'})) { |
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$r->print('<input type="hidden" name="firstrun" value="yes" />'); |
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} else { |
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$r->print('<input type="hidden" name="firstrun" value="no" />'); |
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} |
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# |
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return @Buttons; |
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} |
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|
|
|
|
|
|
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#################################################### |
#################################################### |
#################################################### |
#################################################### |
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|