Serialized Array Fields in Admin Config Don't Obey <depends>

[BrianPittVP]

I ran into an issue recently when trying to add dependencies to fields in the admin system config for a custom module. For simple fields like text boxes, the fields can show/hide based on the value of another field, such as a Yes/No select box. However, if you have a serialized array field that displays a table with rows, this doesn't work.

I tracked down the issue to the app/design/adminhtml/default/default/template/system/config/form/field/array.phtml template. It is hard-coded to prepend grid to whatever the HTML ID is, but the dependency logic doesn't understand that. I was able to make it work by simply removing the grid_ from the beginning of the id attribute in the <div class="grid" ...> container. It doesn't appear to cause any problems, but I haven't fully tested every possible scenario.

Does anyone know if there's a reason why this was excluded from the dependency logic and/or if it makes sense to make this change to the core?

[elidrissidev]

Good timing! I believe this was fixed by #3307 just a few days ago, could you check if it solves your issue?

[BrianPittVP]

WOW, go figure! I'm not sure I'll be able to test it any time soon, I don't have plans to upgrade our site or install the latest version. I'll keep it in mind the next time we upgrade to check it out.

[sreichel]

I can`t test anything right now.

Can we improve <depends> to work with multi-select fields, too?

Testcase and possible solution: https://magento.stackexchange.com/questions/179664/admin-config-show-field-depending-on-selected-multiselect-values