oficinasuport-wp-theme/page-templates/funds-search.php

<?php
/**
 * The template for displaying the "ajuts" funds with search capabilities 
 *
 * Template Name: Cercador ajuts 
 *
 * @link https://developer.wordpress.org/themes/basics/template-hierarchy/
 * @link https://developer.wordpress.org/themes/template-files-section/page-template-files/
 *
 * @package Oficina_de_Suport_theme
 * @since 1.0
 */

get_header();
?>

	<main id="primary" class="site-main">

		<?php if ( have_posts() ) : ?>

			<header class="page-header">
			</header><!-- .page-header -->
			<?php
			/* Start the Loop */
			while ( have_posts() ) :
				the_post();

				/*
				 * Include the Post-Type-specific template for the content.
				 * If you want to override this in a child theme, then include a file
				 * called content-___.php (where ___ is the Post Type name) and that will be used instead.
				 */
				get_template_part( 'template-parts/content', 'page' );

			endwhile;

			the_posts_navigation();

		else :
			get_template_part( 'template-parts/content', 'none' );

		endif;
		?>
    <section id="filteredfunds" class="ofisuport-filtered-funds ofisuport-ajuts-filtrats">
      <aside id="fundsfilter" class="ofisuport-filter-funds ofisuport-fitre-ajuts">
      <?php include_once( ABSPATH . 'wp-admin/includes/plugin.php' ); if ( is_plugin_active( 'oficinasuport-wp-plugin/ofisuport-wp-plugin.php' ) ) { // if plugin active do?>                                
         <nav class="sidebar fund-filter">
          <h5>filter options</h5>
           <ul>
             <li>item 01</li>
             <li>item 02</li>
             <li>item 03</li>
             <li>item 04</li>
           </ul>
			   </nav>
       <?php  } //end if is_plugin_active ?> 
      </aside>
			<content class="archive-posts <?php ofisuport_class_posttype(); ?>">

      <?php
       $the_query_ajut = new WP_Query(
         array(
           'post_type' => 'ofisuport-ajut',
           'post_per_page' => '6',
         ) );
       ?>
       <?php if ( $the_query_ajut->have_posts() ) : ?>
         <?php while ( $the_query_ajut->have_posts() ) : $the_query_ajut->the_post(); ?>

          <?php get_template_part( 'template-parts/section', 'eachpost' ); ?>

         <?php endwhile;//end of the loop ?>
         <?php wp_reset_postdata(); ?>
       <?php endif; //end query ajut ?>

			</content>
	</section>

</main><!-- #main -->

<?php
get_footer();