version 1.8, 2004/03/16 16:30:31
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version 1.9, 2004/03/16 16:41:26
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Line 345 sub get_prev_curr_next {
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Line 345 sub get_prev_curr_next {
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=pod |
=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) = @_; |
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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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$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 $answer = &Apache::lonstathelpers::analyze_problem_as_student |
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($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'} = $answer; |
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} |
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&Apache::lonstathelpers::write_answer_cache(); |
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return if ($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 |
=item analyze_problem_as_student |
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Analyzes a homework problem for a student and returns the correct answer |
Analyzes a homework problem for a student and returns the correct answer |