[Resolved] Shortcode to check if a view has output

[Author]

Posts

[nabils]

Dear,
Here my problem:
I have a custom type "registration" and each user can create one single "registration".
In another content template (of another custom type "competition"), I have to show up some content only if the current user has a registration. So basically, and if I am thinking right, I need a shortcode which checks is the current user has a "registration" (where he is the author). In other words, I need a shortcode to check if a view (which outputs the registrations of the current user) has an empty output or not.

Any clue please?
Regards
nabil

[Christian Cox]

Hi, I don't think you need a special shortcode to do this. I think you can accomplish this with a fairly simple View. Create a new View that will display registrations for the current User. In your Loop Output, you can place whatever content you want to include for Users with registrations in the <wpv-loop> area. You can place whatever content you want to include for non-registered users in the "No items found" area. Finally, place this View in your content template for competitions.

Let me know if I can help clarify this approach.

[nabils]

Thank you Christian,
I am aware of this solution but actually it is my fault, I did not give you enough information in my first request. When I said " I have to show up some content only if the current user has a registration", the "some content" I meant here is actually a child CRED to create a signup to the current competition (this signup is a child of competition).
If I put this cred link in the registration view, I will loose the link between the current competition (father) and the signup (child). So I think I need a shortcode to check if a view has an empty output or not.

[Christian Cox]

Here's a shortcode that will return the number of results for any View:

add_shortcode( 'ts_view_has_results', 'ts_view_has_results_func');
function ts_view_has_results_func($atts)
{
  $view_id = intval($atts['viewid']);
  $results = get_view_query_results( $view_id );
  return count($results);
}

Use the shortcode - replace 123 with the View ID of your choice:

[ts_view_has_results viewid="123"]

You can use the value returned by this shortcode in a conditional if you register it as described here:
https://toolset.com/documentation/user-guides/shortcodes-within-shortcodes/

[nabils]

Thanks,
This is exactly what I need.