In WordPress, use to pre-populate a Ninja Forms select list with options, using Custom Post Types

ninja-forms-prepopulate-select-with-cpt.php

<?php

function cpt_prepopulate_forms($options, $settings) {
	global $post;
    if( $settings['id'] == 27 ) // change to your field ID
    {  
        $args = array(
            'post_type' => 'location', // Change to your Custom Post type
        );
        $query = new WP_Query( $args );
        if ( $query->have_posts() ) 
        {
            $options = array();
            while ( $query->have_posts() ) 
            {
                $query->the_post();
                $options[] = array(
                    'label' =>  get_the_title(),
                    'value' =>  $post->post_name,
                    'calc'  =>  null,
                    'selected' => 0
                );
            }
        } 
        wp_reset_postdata();
    }
    return $options;
}
add_filter('ninja_forms_render_options','cpt_prepopulate_forms', 10, 2);

Worked perfectly! I used $settings['key'] instead of ID, though.

I'll admit I'm a noob for some more advance WP editing. Where is this code injected? In the wp_config?

@ejeaglesct This could go inside your theme's functions.php file or any php file that is included/required by your functions.php file.

I'm glad to see you all are getting value after this (I wrote this forever ago). I hope that helps!