Theming Jigoshop: create your custom product types

functions.php

/**
 * Helper functions to add / remove array of terms
 *
 * @package MyTheme
 * @since 1.0
 *
**/
function _add_terms( $terms, $taxonomy = 'category' ) {
	if ( !is_array($terms) || empty($terms)) return;
	
	foreach($terms as $term) 
		if (!$term_ = get_term_by( 'slug', sanitize_title($term), 'product_type'))
			wp_insert_term($term, $taxonomy);
}
function _remove_terms( $terms, $taxonomy = 'category' ) {
	if ( !is_array($terms) || empty($terms)) return;
	
	foreach($terms as $term) 
		if ($term_ = get_term_by( 'slug', sanitize_title($term), 'product_type'))
			wp_delete_term( $term_->term_id, $taxonomy);
}



/**
 * Remove 'product types' doesn't needed for the site
 *
 * @package MyTheme
 * @since 1.0
 *
**/
function mytheme_remove_product_types() {
	
	if ( get_option('mytheme_jigoshop_adapted') != 'yes' ):
	
		$remove_types = array(	'External', 'Grouped', 'Configurable', 'Downloadable', 'Virtual' );
		$add_types = array( 'Custom' );
		
		_remove_terms($remove_types, 'product_type');
		_add_terms($add_types, 'product_type');
		
		update_option('mytheme_jigoshop_adapted', 'yes');

	endif;
}
include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
if (is_plugin_active('jigoshop/jigoshop.php'))
	add_action(	'init', 'mytheme_remove_product_types', 640 );



/**
 * Product type selector
 *
 * @package MyTheme
 * @since 1.0
 *
**/	
function mytheme_product_type_selector($product_types) {
	
	return array(
		'simple' => __('Simple', 'jigoshop'),
		'custom' => __('Custom', 'mytheme');
	);
}
add_filter('jigoshop_product_type_selector', 'mytheme_product_type_selector', 0);



/**
 * Adds product types doesn't needed for the site
 *
 * @package MyTheme
 * @since 1.0
 *
**/
function mytheme_add_product_types() {
	
	$add_types = array(	'External', 'Grouped', 'Configurable', 'Downloadable', 'Virtual' );
	$remove_types = array( 'Custom' );
	
	_add_terms($add_types, 'product_type');
	_remove_terms($remove_types, 'product_type');
	
	delete_option('mytheme_jigoshop_adapted');
}
register_deactivation_hook( 'jigoshop/jigoshop.php', 'mytheme_add_product_types' );
add_action("switch_theme", "mytheme_add_product_types");