Question types: Pattern match with molecular editor

Maintained by Tim at Lone Pine Koala SanctuaryTim Hunt, Picture of Jamie PrattJamie Pratt, Picture of Phil ButcherPhil Butcher
A question type where the user enters their response using the JavaScript Molecular Editor, and the response is then graded using the OU's pattern-match algorithm.
311 sites
9 fans
Current versions available: 8

There are working examples in eAssessment with Moodle on our OpenLearn site.

The documentation is in How to create questions in Moodle on that site.


This plugin is part of set Open University.


Screenshot #0


Tim at Lone Pine Koala Sanctuary
Tim Hunt (Lead maintainer)
Picture of Jamie Pratt
Jamie Pratt: Developer
Picture of Phil Butcher
Phil Butcher: Question type designer
Picture of Colin Chambers
Colin Chambers: Developer
Picture of Chris Nelson
Chris Nelson: Product owner
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  • Picture of George Chen
    Wed, Sep 19, 2012, 9:12 AM
    I had a client reported the following JME problem. Please help to identify the issue.
    The JME editor now seems to work perfectly; however, the question engine does not recognize either of the correct answers when they are given. I assume this is a problem with the pattern match mechanism, since there is a function in the JME Editor to acquire the SMILES string and it is identical to the SMILES string entered in the question (although the question version requires escape characters, as per the manual: "
  • Picture of Phil Butcher
    Wed, Sep 19, 2012, 4:25 PM
    George can you find out exactly what the molecule or the correct answers are so that I can try them.
  • MD shot of me from his iphone4
    Wed, Jul 3, 2013, 7:53 PM
  • MD shot of me from his iphone4
    Wed, Jul 3, 2013, 8:06 PM
  • Picture of Jason Behory
    Wed, Aug 27, 2014, 12:04 AM
    I am running into issues with this plugin on my moodle 2.6.4 installation. I have installed version 1.4 following the instructions listed here however when I create and preview a question of this type in moodle the JME applet does not load.

    I see in my access logs that a request is being made for /question/type/pmatchjme/jsme/jsme.nocache.js

    This file(s) are not included in this plugin. I have the jmol/jsmol filter installed in my moodle installation. Any help would be appreciated
  • Picture of Colin Chambers
    Thu, Aug 28, 2014, 5:41 PM
    Great spot jason. Sorry about that.

    It turns out that the zip in the Plugins directory is a bit out of date.

    The git repository is more up to date but there are two fixes that still need to be deployed to it.

    I'm in the process of applying and testing the fixes. Then I will push to the repository and get the plugin zip in the plugins database updated.
  • Picture of Colin Chambers
    Thu, Aug 28, 2014, 9:10 PM
    I've updated the git repository with the latest fixes (There was a javascript problem in IE 8) You'll find the JSME folder with the jsme.nocache.js file in there.

    If you're comfortable with git just pull the latest version, visit admin > notification and pmatchjme will be updated (the caches need to be flushed to get the latest javascript files).

    I'll look at getting the version in the Moodle plugins directory changed.
  • Picture of Jason Behory
    Thu, Aug 28, 2014, 9:53 PM
    Thanks Colin. The version of github works. I should have spotted it sooner. I was assuming the zip here and on github were identical.
  • Tim at Lone Pine Koala Sanctuary
    Tue, Nov 11, 2014, 2:59 AM
  • Picture of Matthias Wieser
    Wed, Jul 3, 2019, 6:25 PM
    Is a version for Moodle 3.7 planned? We have problems with this type of question on our installation. The question type gives no points or other reaction when answering questions.
  • Tim at Lone Pine Koala Sanctuary
    Wed, Jul 3, 2019, 6:49 PM
    I have not yet had time to test my plugins with Moodle 3.7. It surprises me if it has stopped working, because I don't think anything significant changed in 3.7 that would affect this question type, so I don't know why it is not working for you.
  • Picture of Kalju Kahn
    Tue, Jul 30, 2019, 3:10 PM
    I am also having difficulty with this plugin under Moodle 3.7.1. The JSME Molecular Editor shows up OK, and allows drawing the answer structure, but upon submitting the answer, the question page is re-drawn with red "Please enter an answer" text below the editor area. I can't find anything obviously alarming in the Apache log files. This happens with both Boost and Clean themes. Maybe co-incidentally, a similar issue is also affecting my qtype_fwstructmatch questions in 3.7.1 (these worked fines in 3.5).
  • Picture of Klaus Steitz
    Thu, Aug 8, 2019, 10:51 PM
    same here, it doesn´t work with Moodle 3.7.1 and no hints or any entries in log-files. The preview doesn´t accept the answer and gives no feedback. Doing the test the jme-question even doesn´t show up the jme-editor. Maybe some library is still used by the plugin that was deprecated/taken out in Moodle 3.7 such as e.g. eventslib.php? Unfortunately the logs state no starting points for debugging...
  • Tim at Lone Pine Koala Sanctuary
    Thu, Aug 8, 2019, 10:56 PM
    Yes, I can confirm this problem, mainly thanks to aspark21 and segunb who reported the problem over on Github, and even suggested a fix I am afraid I have been busy, and I am on leave tomorrow, but I will try to review that fix and get a new version published early next week. In the mean time, you might be able to apply the fix to your own Moodle site. It is a small code change required.

    Sorry about this.
  • Tim at Lone Pine Koala Sanctuary
    Thu, Aug 15, 2019, 11:46 PM
    Not sure if 'Thursday' counts as early in the week, but I have just pushed a new version which solves the problem with Moodle 3.7. Thanks for your patience.
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