Using Conditional Logic with Taxonomies - Support Fourms

This topic has 8 replies, 5 voices, and was last updated 7 months, 1 week ago by Alex Mansfield.

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February 27, 2019 at 6:54 AM #13489

Resolved Alex Mansfield
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As far as I can tell (although I hope I'm wrong), it looks like meta boxes can be shown/hidden based on the value of a custom field, but not based on whether or not the post has a particular taxonomy term. Is that correct? I think I read about a way to do this with code, but I was really hoping to be able to do it from the Builder plugin. Is that possible?
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March 2, 2019 at 2:42 PM #13529

Anh Tran
Keymaster

Hi Alex,

The Builder lacks of supporting for taxonomies for Conditional Logic at the moment. You can do that with Custom Attributes in the Advanced tabs. The attributes can be found in docs of Conditional Logic docs here: https://docs.metabox.io/extensions/meta-box-conditional-logic/#using-with-taxonomies

March 17, 2020 at 4:37 AM #18558

Mark Tenney
Participant

Anh, I have tried this, but it only seems to work if a taxonomy has been selected and saved to the post. I have been trying to show fields based on the selection of a taxonomy_advanced field before saving the post with no luck.

March 18, 2020 at 3:08 PM #18571
Anh Tran
Keymaster
Hi Mark,

For taxonomy_advanced field, it works similar to any other field.

You can use contains or in condition and both works. Remember to use term ID to specify the value.

So, you can write the condition like this:
```
'visible' => ['field_id', 'contains', 4], // 4 is the term ID
```
Or:
```
'visible' => ['field_id', 'in', [4, 2]], // 4, 2 are term IDs. In this case, the field will be visible if the tax_advanced has any term with the ID specified.
```
Please see this video for demo:
May 22, 2020 at 9:31 PM #19746

SteveCo
Participant

Hopefully we see a more visual way to select taxonomy terms (like hierarchical).

May 30, 2020 at 2:32 AM #19930

SteveCo
Participant

I need this feature too. Any update as to if it will be coming to Builder anytime soon?

December 20, 2020 at 2:24 PM #23645

Alex Mansfield
Participant

After almost a two year break, I'm trying to figure this out again. In Ahn's initial reply, he said to use "Custom Attributes" in the "Advanced" tab. I've tried to do that, but I think something is wrong. My custom taxonomy is called "Plugin Category" with a slug of "plugin-category". I'm trying to display this meta box any time the "Plugin Category" is set to "Image Optimization" (slug for that term is "image-optimization").

First, I tried this custom attribute:
hidden > ['slug:tax_input[plugin-category]', '!=', 'image-optimization']

Sadly, that hid the meta box everywhere, even if the post was part of the image-optimization plugin category.

Next, I tried these custom attributes (as mentioned here: https://docs.metabox.io/extensions/meta-box-builder/):
tax_query.0.taxonomy > plugin-category
tax_query.0.field > slug
tax_query.0.terms > image-optimization

That didn't seem to have any effect. What am I doing wrong?

December 20, 2020 at 11:24 PM #23651

Long Nguyen
Moderator

Hi Alex,

I recommend using the field taxonomy or taxonomy_advanced to select a taxonomy for the post and show/hide another meta box base on the field value. See my screen record https://share.getcloudapp.com/YEuQkPlk.

December 22, 2020 at 1:57 AM #23676

Alex Mansfield
Participant

Thanks for the screen recording. I had tried that, but I didn't get it set up quite right. I think maybe I had used "=" instead of "in" as the comparison operator when I tried before. It's working now. Thanks for the help!
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