Log Message:
-----------
check that a tex output actually exists before typesetting the correct answer.
This effort is still a hack. Problem.pm needs to be written from the ground up.
Modified Files:
--------------
webwork2/lib/WeBWorK/ContentGenerator:
Problem.pm
Revision Data
-------------
Index: Problem.pm
===================================================================
RCS file: /webwork/cvs/system/webwork2/lib/WeBWorK/ContentGenerator/Problem.pm,v
retrieving revision 1.225
retrieving revision 1.226
diff -Llib/WeBWorK/ContentGenerator/Problem.pm -Llib/WeBWorK/ContentGenerator/Problem.pm -u -r1.225 -r1.226
--- lib/WeBWorK/ContentGenerator/Problem.pm
+++ lib/WeBWorK/ContentGenerator/Problem.pm
@@ -384,6 +384,8 @@
# so we'll just deal with each case explicitly here. there's some code
# duplication that can be dealt with later by abstracting out tth/dvipng/etc.
+ return "" unless defined( $answerResult->{correct_value} ) and ref( $answerResult->{correct_value} );
+
my $tex = $answerResult->{correct_value}->TeX;
return "" unless defined $tex and $tex ne "";
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