[Resolved] Filter nested View of child posts in a parent View

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[culturaI]

Hello i read many threads but i cannot find a solution.

I'm using types 2.2.21

I have:
Parent post type: contatti
field1: "nazione"
field2: "sesso"

Child post type: corsi
field1: "livello"
field2: "tipo di corso"

I created a parent view (contatti) and inserted a nested view (corsi - Post relationship filter - Select posts that are a children of the current post in the loop.)

It's working good, i can display corsi for each contatto.

I can filter contatti fields (nazione+sesso).

I would to filter child posts in my parent views, so i could to display for example:
contatti filtered by "nazione" or "sesso", nested view corsi filtered by "livello" or "tipo di corso"

I'm missing something?

Thanks

[Christian Cox]

Hi, Views custom search filters aren't designed to work well with nested Views like this. Usually custom filters are applied to a single View. Filtering a nested View is fairly complex, and requires some manual work. This approach does not work for AJAX Views or with the option "only show available inputs".
1. Create a View and choose the "Full custom display mode" option. Select Contatti for the content selection.
2. Scroll to the Search and Pagination editor and Add a Filter. Choose the nazione field, then repeat for the sesso field.
3. Click Add a Filter again, and choose the "livello" field. In the options for this field, choose a "Select dropdown" and "manually entered values" (see the screenshot). Then you must add all the options manually - one option for each option in the custom field.
4. Repeat the process for the "tipo di corsi" field, then add a Submit button.
5. Scroll up to the Query Filter section and remove the Query Filters for livello and tipo di corsi, because you do not want to filter the Contatti by these custom fields.
6. In the Loop Editor, add the post title shortcode.
7. Place the View on a page of your site, and you should see the View of Contatti with the 4 field filters.
8. Create a View and choose "Full custom display mode", and select Corsi in the content selection.
9. Scroll to the Search and Pagination editor and click Add a Filter. Choose the livello field, and the "select dropdown" type. This time, you do not need to add the options manually. Repeat for the tipo di corsi field.
10. Now delete the filters from the Search and Pagination editor, because the filter controls have already been added in the parent View. Keep the Query Filters in place.
11. In the Loop Editor, insert the post title shortcode.
12. Edit the View of Contatti and insert the View of Corsi in the Loop just after the post title shortcode.

[culturaI]

Thanks Christian, it worked like a charm!
Can i exclude from parent view a "contatto" with nested view empty?

[Christian Cox]

Not exactly, but you could remove the post title from the View of Contatti and add it to the View of Corsi inside the wpv-items-found shortcodes. This way the Contatti information is only displayed if child posts are found.

See how to use the post selection tab to display information from the parent post here: https://toolset.com/documentation/post-relationships/how-to-display-related-posts-with-toolset/#displaying-one-related-item-parent

[culturaI]

Very good. One last question:
With types 3.0 i do the same steps to to obtain this result ?
I read here on forum ( https://toolset.com/forums/topic/display-parent-post-by-filtering-child-posts/ ) that new relationships (types 3.0) give or (will give in a short time) the ability to filter for related posts.
It is so or i misunderstood?

[Christian Cox]

Good question, there was some inaccurate information about this in the other ticket. Types 3+ does not include the related post field filters yet, but we expect the developers will add it soon in an upcoming release.

[culturaI]

My issue is resolved now. Thank you Christian!