/*-----------------------------------------------------------------------------------*/
/* The following displays posts by '_by_boat_price' & orders by this key
/*-----------------------------------------------------------------------------------*/

function bay_change_boat_archive_query( $query ) {
	if( $query->is_main_query() && !is_admin() && is_post_type_archive( 'boat' ) ) {
		$query->set( 'meta_key', '_by_boat_price' );
		$query->set( 'orderby', 'meta_value_num' );
		$query->set( 'order', 'DESC' );
	}
}
add_action( 'pre_get_posts', 'bay_change_boat_archive_query' );

/*-----------------------------------------------------------------------------------*/
/* The following displays posts by '_by_boat_price' & orders by this key same as above
/*-----------------------------------------------------------------------------------*/

function bay_change_boat_archive_query( $query ) {
	if( $query->is_main_query() && !is_admin() && is_post_type_archive( 'boat' ) ) {
		$query->set( 'meta_key', '_by_boat_price' );
		$query->set( 'orderby', 'meta_value_num' );
		$query->set( 'order', 'DESC' );
		$query->set( 'meta_query', array(
										'relation' => 'OR',
										array(
											  'meta_key' => '_by_boat_price',
											  'compare' => 'EXISTS',
											  'type' => 'numeric'
										),
										array(
											  'meta_key' => '_by_boat_enquire_pricing',
											  //'value' => time(),
											  'compare' => 'EXISTS',
										)
		));
	}
}
add_action( 'pre_get_posts', 'bay_change_boat_archive_query' );

/*--------------------------------------------------------------------------------------------------------------*/
/* The following displays posts by '_by_boat_price' & '_by_boat_enquire_pricing' but without the desired orderby
/*-------------------------------------------------------------------------------------------------------------*/

function bay_change_boat_archive_query( $query ) {
	if( $query->is_main_query() && !is_admin() && is_post_type_archive( 'boat' ) ) {
		$query->set( 'orderby', 'meta_value_num' );
		$query->set( 'order', 'DESC' );
		$query->set( 'meta_query', array(
										'relation' => 'OR',
										array(
											  'meta_key' => '_by_boat_price',
											  'compare' => 'EXISTS',
											  'type' => 'numeric'
										),
										array(
											  'meta_key' => '_by_boat_enquire_pricing',
											  //'value' => time(),
											  'compare' => 'EXISTS',
										)
		));
	}
}
add_action( 'pre_get_posts', 'bay_change_boat_archive_query' );