Molsimilarity

I love the fact that this is using Chem Doodle - my question though is how to adapt this to allow for drawing salts. Simple example is sodium acetate. The editor does not allow more than one structure to be inputted, making drawing this impossible (using a sigma bond would be deeply incorrect). Any thoughts on expanding on this? Also, being able to draw two structures would be helpful, i.e. where a major and minor product are formed, or where two products are formed (ester hydrolysis) --- Gareth

Thank you for your return
It's seems to come from a depreacted constant removed beetween 4.4.x and 4.5.x but in the 1.5.0 version of the plugin I remove that constant
I'll try to reproduce the error to prevent this to arrive

i my case , i upgrade to moodle 4.4.7 and upgrade plugin molsimilarity to 1.4.3 (2024061700) . Nothing to do with folders. Only by web panel administrator in moodle.
when i have moodle 4.4.7 cannot update molsimilarity to 1.5.0 (2025022100) - got error - wrong version moodle.
So hgave to update moodle to 4.5 . And when upgrading i have error above (line 33 of /question/type/molsimilarity/db/messages.php: Error thrown) . Got error without making any changes to the files .
To fix that problem solution is above

the standard procedure is to replace old plugin code by new one after having removed the old code
In the case of molsimilarity plugin a lot of javascript module files have changed (new one, old one removed) that can explain errors if you only copy new code under old one not deleted before
I'll put a warning concerning this in the readme
Glad it works for you and thanks for your return

hurray. i have solution.
1 . i removed folder moodle/question/type/molsimilarity (save copy)
2. succesful upgrade moodle 4.4-> 4.5
3. past copied folder molsimilarity to moodle/question/type/
4. upgrade plugin molsimilarity by standard procedure
and working !

now i have error while updateing 4.4->4.5
Stack trace:
line 33 of /question/type/molsimilarity/db/messages.php: Error thrown
line 692 of /lib/messagelib.php: call to require()
line 487 of /lib/messagelib.php: call to message_get_providers_from_file()
line 629 of /lib/upgradelib.php: call to message_update_processors()
line 771 of /lib/upgradelib.php: call to upgrade_component_updated()
line 1937 of /lib/upgradelib.php: call to upgrade_plugins()
line 719 of /admin/index.php: call to upgrade_noncore()

I had no troubles migrating from 4.1 to 4.5 version, Have you try to look in the apache/ngix error logs?Have you old 2.2 assignments, this block the moodle update?

is possible molsimilarity plugin crash my site ? or should i searching in another plugins ?

maybe come from other plugin , I'll contact you

thank You i will try. I have error500 after upgrade 4.4-> 4.5 and moodle site stop working... Serarching in whole added plugins

Hello,
if you have instances of molsimilarityquestions you must delete them before uninstalling the plugin, this Moodle behaviour for question type plugins
Note that this is not necessary to uninstall 4.1 molsimilarity plugin to migrate to 4.5 plugin version, the plugin update is took into account

i have error: core_plugin/err_cannot_uninstall_plugin

hi again. How can i uninstall plugin ? i need upgrade to moodle 4.5 but first have to delete from moodle 4.4 ... but no visable option to uninstall.

Nice, thanks you for the feedback

hi
Céline Perves.
Thanks you 4 supporting. NOw is working