Add custom field in Search filter

Creating a custom event search filter

WP Event Manager’s [Events] shortcode will show a search filter on top. if you want to add a custom filter in the top section you can add it via hook or overriding via template files.

It is possible to add new filters to the search form by adding a field and then modifying the search queries using filters.

1. Open your child theme,
2. Add the code into the funtions.php file.

   Here is an example field:

   <?php
   /**
    * Adding via filter or you can directly add-in a template file
    */
      add_action( 'event_manager_event_filters_search_events_end', 'filter_by_country_field' );
      function filter_by_country_field() {
   ?>
   <div class="wpem-row">
   	<div class="wpem-col">
   		<div class="wpem-form-group">
   				<div class="search_event_types">
   				<label for="search_event_types" class="wpem-form-label"><?php _e( 'Country', 'event_manager' ); ?></label>
   				<select name="filter_by_country" class="event-manager-filter">
   					<option value=""><?php _e( 'Select country', 'event_manager' ); ?></option>
   					<option value="de"><?php _e( 'Germany', 'event_manager' ); ?></option>
   					<option value="in"><?php _e( 'India', 'event_manager' ); ?></option>
   					<option value="us"><?php _e( 'USA', 'event_manager' ); ?></option>
   				</select>
   			</div>
   		</div>
   	</div>
   </div>
   <?php }
   
   /**
    * This code gets your posted field and modifies the event search query
    */
   add_filter( 'event_manager_get_listings', 'filter_by_country_field_query_args', 10, 2 );
   function filter_by_country_field_query_args( $query_args, $args ) {
       if ( isset( $_POST['form_data'] ) ) {
           parse_str( $_POST['form_data'], $form_data );
           // If this is set, we are filtering by country
           if ( ! empty( $form_data['filter_by_country'] ) ) {
               $event_country = sanitize_text_field( $form_data['filter_by_country'] );
               $query_args['meta_query'][] = array(
                           'key'     => '_event_country',
                           'value'   => $event_country,
                           );
           }
       }
       return $query_args;
   }
   ?>
   

3. Save Changes.
4. Create a new field in the field editor(WP-Admin >> Event Manager >> Field Editor).
5. The field created should be with the meta key value( _event_country).
6. The placeholder should contain the same value, as provided in the code( de | in | us).
7. Save changes.
8. Link your Events with the country and finally you can filter them on the frontend.