Add a custom filter to "The Events Calendar Pro" filter bar plugin based on a taxonomy

tribe_filter-bar_custom_filter

<?php
/**
 * Adding a custom filter
 * A simple copy and paste of the existing Category filter
 * Find this new filter in: WP Admin > Events > Settings > Filterbar
 * Docs for TribeEventsFilter: http://docs.tri.be/Filter-Bar/class-TribeEventsFilter.html
 */
class TribeEventsFilter_CustomClubs extends TribeEventsFilter {
  public $type = 'select';

  public function get_admin_form() {
    $title = $this->get_title_field();
    $type = $this->get_type_field();
    return $title.$type;
  }

  protected function get_type_field() {
    $name = $this->get_admin_field_name('type');
    $field = sprintf( __( 'Type: %s %s', 'tribe-events-filter-view' ),
      sprintf( '<label><input type="radio" name="%s" value="select" %s /> %s</label>',
        $name,
        checked( $this->type, 'select', false ),
        __( 'Dropdown', 'tribe-events-filter-view' )
      ),
      sprintf( '<label><input type="radio" name="%s" value="checkbox" %s /> %s</label>',
        $name,
        checked( $this->type, 'checkbox', false ),
        __( 'Checkboxes', 'tribe-events-filter-view' )
      )
    );
    return '<div class="tribe_events_active_filter_type_options">'.$field.'</div>';
  }

  protected function get_values() {
    $event_clubs = array();
    $event_clubs_term = get_terms( 'uvaclub', array( 'orderby' => 'name', 'order' => 'DESC' ) );
    $event_clubs_by_id = array();
    foreach( $event_clubs_term as $term ) {
      $event_clubs_by_id[$term->term_id] = $term;
    }
    $event_clubs_by_id_reverse = array_reverse( $event_clubs_by_id );
    $parents = array( '0' );
    while ( !empty( $parents ) ) {
      $parents_copy = $parents;
      foreach ( $event_clubs_by_id_reverse as $term ) {
        if ( in_array( $term->parent, $parents_copy ) ) {
          $parents[] = $term->term_id;
          unset( $event_clubs_by_id[$term->term_id] );
          $event_clubs_by_id = TribeEvents::array_insert_after_key( $term->parent, $event_clubs_by_id, array( $term->term_id => $term ) );
        }
      }
      $parents = array_diff( $parents, $parents_copy );
    }
    $child_spacer = '&nbsp;&nbsp;';
    foreach( $event_clubs_by_id as $cat ) {
      $child_depth = 0;
      $parent_id = $cat->parent;
      while ( $parent_id != 0 ) {
        $child_depth++;
        $parent_id = $event_clubs_by_id[$parent_id]->parent;
      }
      $child_indent = str_repeat($child_spacer, $child_depth);
      $event_clubs[] = array(
        'name' => $child_indent . $cat->name,
        'value' => $cat->term_id,
        'data' => array(
          'slug' => $cat->slug,
        ),
      );
    }
    return $event_clubs;
  }

  protected function setup_query_args() {
    $this->queryArgs = array( 'tax_query' => array( array(
      'taxonomy' => 'uvaclub',
      'field' => 'id',
      'terms' => $this->currentValue,
      'include_children' => false,
    ) ) );
  }
 
}
// This adds our new filter to the Filterbar options
// Invokes TribeEventsFilter::__construct($name, $slug);
function CustomClubs_taxfilter(){
  new TribeEventsFilter_CustomClubs('UVaClub', 'uvaclub');
}
add_action('tribe_events_filters_create_filters','CustomClubs_taxfilter');

You saved me a lot of hassle.

Thanks for sharing this.

Wow this is great. It was created 4 years ago but worked flawlessly today. Thank you for saving me from programming it myself.

Hi! Thank you very much for this code. Could you please tell me where to add this code to make it work?

Thanks!