Custom Taxonomy

functions.php

<?php 

// This code goes in your theme's functions.php 
function form_caracteristica( $object_id ) { 
 WCVendors_Pro_Form_helper::select2( array(
			'post_id'			=> $object_id,
			'id'				=> 'wcv_custom_product_caracteristicas[]',
			'class'				=> 'select2',
			'label'				=> __('Caracteristicas', 'wcvendors-pro'),
			'show_option_none'	=> __('Select a caracteristicas', 'wcvendors-pro'),
			'taxonomy'			=>	'caracteristica', 
			'taxonomy_args'		=> array( 
									'hide_empty'	=> 0, 
								), 	
			'custom_attributes'	=> array( 'multiple' => 'multiple' ), 
			)
	); 
}

function save_caracteristica( $post_id ){ 
	$term = $_POST[ 'wcv_custom_product_caracteristicas' ]; 
	$terms = implode(',', $term ); 
	wp_set_post_terms( $post_id, $term, 'caracteristica' ); 
}

add_action( 'wcv_save_product', 'save_caracteristica' ); 

// Now put the following line in your product-edit.php template override 

<?php form_caracteristica( $object_id ); ?>

Hello digitalchild, i'm trying to add similar code to functions.php and product-edit.php, then add product in frontend dashboard, then save them. After save product don't contain selected value from taxonomy field. Do you have any ideas how solve this issue?

My code

function form_country( $object_id ) { 
 WCVendors_Pro_Form_Helper::select2( array(
			'post_id'			=> $object_id,
			'id'				=> 'wcv_custom_product_country[]',
			'class'				=> 'select2',
			'label'				=> __('Product Country', 'wcvendors-pro'),
			'show_option_none'	=> __('Select country', 'wcvendors-pro'),
			'taxonomy'			=>	'country', 
			'taxonomy_args'		=> array( 
									'hide_empty'	=> 0, 
								), 	
			'custom_attributes'	=> array( 'multiple' => 'multiple' ), 
			)
	); 
}
function save_country( $post_id ){ 
	$term = $_POST[ 'wcv_custom_product_country' ]; 
	$terms = implode(',', $term ); 
	wp_set_post_terms( $post_id, $term, 'country' ); 
}
add_action( 'wcv_save_product', 'save_country' );