How To Customize The Product Page Template for a WooCommerce Custom Product Type Plugin [closed]

The cruxof my issues were a mis-matching class name/product type. I was calling the class WC_Product_Family but using a product type of “wcfp_family_product”.

I refactored the code, adding in the hook for the add_to_cart and was able to get a crude working example:

<?php

/*
https://wisdmlabs.com/blog/create-product-type-custom-settings-woocommerce/
Adding a custom WooCommerce product type



// Example showing a product select drop down menu on the Settings page of the custom product type:
http://stackoverflow.com/questions/30973651/add-product-search-field-in-woo-commerce-product-page

*/

// add a product type
add_filter( 'product_type_selector', 'wcfp_add_family_product_type' );
function wcfp_add_family_product_type( $types ){
    $types[ 'familyproduct' ] = __( 'Family Product' );
    return $types;
}

add_action( 'plugins_loaded', 'wcfp_create_family_product_type' );
function wcfp_create_family_product_type(){
     // declare the product class
     class WC_Product_FamilyProduct extends WC_Product{
        public function __construct( $product ) {
           $this->product_type="familyproduct";
           parent::__construct( $product );
           // add additional functions here
        }
    }
}






// add the settings under ‘General’ sub-menu
add_action( 'woocommerce_product_options_general_product_data', 'wcfp_add_custom_settings' );
function wcfp_add_custom_settings() {
    global $woocommerce, $post;
    echo '<div class="options_group hidden show_if_familyproduct">';

?>

    <p class="form-field product_field_type">
    <label for="familyproduct_ids"><?php _e( 'Component Products:', 'woocommerce' ); ?></label>

        <input type="hidden" class="wc-product-search" style="width: 50%;" id="familyproduct_ids" name="familyproduct_ids" data-placeholder="<?php esc_attr_e( 'Search for a product&hellip;', 'woocommerce' ); ?>" data-action="woocommerce_json_search_products" data-multiple="true" data-exclude="<?php echo intval( $post->ID ); ?>" data-selected="<?php
                        $product_ids = array_filter( array_map( 'absint', (array) get_post_meta( $post->ID, '_familyproduct_ids', true ) ) );
                        $json_ids    = array();

                        foreach ( $product_ids as $product_id ) {
                            $product = wc_get_product( $product_id );
                            if ( is_object( $product ) ) {
                                $json_ids[ $product_id ] = wp_kses_post( html_entity_decode( $product->get_formatted_name(), ENT_QUOTES, get_bloginfo( 'charset' ) ) );
                            }
                        }

                        echo esc_attr( json_encode( $json_ids ) );
                    ?>" value="<?php echo implode( ',', array_keys( $json_ids ) ); ?>" /> <?php echo wc_help_tip( __( 'Select component parts to display on the product page.', 'woocommerce' ) ); ?>
    </p>

    <?php



    echo '</div>';
}


add_action( 'woocommerce_process_product_meta', 'wcfp_save_custom_settings' );
function wcfp_save_custom_settings( $post_id ){
    //Save the collection of products
    $my_product_ids    = isset( $_POST['familyproduct_ids'] ) ? array_filter( array_map( 'intval', explode( ',', $_POST['familyproduct_ids'] ) ) ) : array();
    update_post_meta( $post_id, '_familyproduct_ids', $my_product_ids  );
}



/**
 * Add a custom product tab.
 */
function wcfp_custom_product_tabs( $tabs) {
    $tabs['rental'] = array(
        'label'     => __( 'Family', 'woocommerce' ),
        'target'    => 'family_options',
        'class'     => array( 'show_if_familyproduct'),
    );
    return $tabs;
}
//add_filter( 'woocommerce_product_data_tabs', 'wcfp_custom_product_tabs' );



/**
 * Hide Attributes data panel.
 */
function wcfp_hide_attributes_data_panel( $tabs) {

    // Other default values for 'attribute' are; general, inventory, shipping, linked_product, variations, advanced
    //$tabs['general']['class'][] = 'hide_if_familyproduct';
    $tabs['inventory']['class'][] = 'hide_if_familyproduct';
    $tabs['shipping']['class'][] = 'hide_if_familyproduct';
    $tabs['linked_product']['class'][] = 'hide_if_familyproduct';
    $tabs['attribute']['class'][] = 'hide_if_familyproduct';
    $tabs['advanced']['class'][] = 'hide_if_familyproduct';

    return $tabs;

}
//add_filter( 'woocommerce_product_data_tabs', 'wcfp_hide_attributes_data_panel' );

add_action( 'woocommerce_familyproduct_add_to_cart', 'familyproduct_add_to_cart' );
function familyproduct_add_to_cart() {
    echo 'MY CUSTOM ADD TO CART HOOK';
    die();
}