Custom fields not being sent to Solr

WPSOLR filters are defined as constants in wpsolr-filters.php.

Here is the definition of this filter:

// Customize a post custom fields before they are processed in a Solarium update document
const WPSOLR_FILTER_POST_CUSTOM_FIELDS = 'wpsolr_filter_post_custom_fields';

An example of how it’s used is in the s2member plugin extension file wpsolr-s2member.php:

add_filter( WpSolrFilters::WPSOLR_FILTER_POST_CUSTOM_FIELDS, array(
			$this,
			'filter_custom_fields'
		), 10, 2 );

I’m happy to say that we will extend WPSOLR to be much more customizable in themes page templates. You can follow/contribute the ticket https://www.ads-software.com/support/topic/needed-mechanism-for-users-to-create-their-custom-templates

When this filter is applied though it turns the array of custom fields into a numeric figure.

It seems whatever filter is being applied and returned is collapsing the array into an int.

I have the groups plugin extension installed working too, is there a chance that the groups extension is flattening the array into an int?

I can see the constant registered, the issue is the filter itself, it’s flattening the array to an int

Exact, it’s a stupid argument inversion. Should be:

$custom_fields = apply_filters( WpSolrFilters::WPSOLR_FILTER_POST_CUSTOM_FIELDS, $custom_fields, $post->ID );

Can you test it ?

Perfect, that seems to have resolved it

Thanks

I updated WPSOLR 3.1 with this fix.