Add element form error after updating 2.5.1 to 2.6.4

[jesus san miguel]

Hi,

I've just inherited an AtoM installation and after upgrading it the form for adding elements gets the following error:

jquery.js:2 Uncaught TypeError: $(...).once is not a function

    at Object.attach (collapse.js:68)

    at Object.<anonymous> (drupal.js:56)

    at Function.each (jquery.js:2)

    at Object.Drupal.attachBehaviors (drupal.js:54)

    at HTMLDocument.<anonymous> (drupal.js:349)

    at e (jquery.js:2)

    at t (jquery.js:2)

And the form does not work, with the fields not rendering properly. Any idea about what could I miss in the upgrade?

[José Raddaoui]

Hi Jesús,

Could it be some sort of cache? Maybe in the server side (clear Symfony cache and restart PHP-FPM) or probably in the browser. In 2.6.3 we upgraded jQuery to 3.5.1 and modified the line referenced in the message to avoid that kind of error ...

- In stable/2.5.x: https://github.com/artefactual/atom/blob/stable/2.5.x/plugins/sfDrupalPlugin/vendor/drupal/misc/collapse.js#L68 

- In stable/2.6.x: https://github.com/artefactual/atom/blob/stable/2.6.x/plugins/sfDrupalPlugin/vendor/drupal/misc/collapse.js#L68 

As you can see, in 2.6.x it uses `each` instead of `once` so I can only think this is a caching issue.

Best,

Radda.

[jesus san miguel]

You were right on the spot, as usual... an outdated sfDrupalPlugin folder was causing the issue. THANK YOU!

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