Attach a Gravity Form to all WooCommerce products in a category

add-gravity-form-to-all-products.php

add_filter( 'woocommerce_gforms_get_product_form_data', 'woocommerce_gforms_get_product_form_data_for_category', 10, 2 );

function woocommerce_gforms_get_product_form_data_for_category( $default_data, $product_id ) {

	$products_to_exclude = array();

	//uncomment the following line and modify the 10 to a product ID you need to exclude from having this form.
	//you can add more if needed.
	//$products_to_exclude[] = 10;

	if ( in_array( $product_id, $products_to_exclude ) ) {
		return $default_data;
	}


	if ( ! empty( $default_data ) ) {
		return $default_data;
	} else {

		$configuration = array(
			'hoodies'      => 1, //the form ID for the category hoodies
			'accessories'  => 3, //the form ID for the category accessories
			'boxer-shorts' => 10 //the form ID for the category boxer-shorts
		);

		foreach ( $configuration as $category_slug => $form_id ) {
			if ( is_object_in_term( $product_id, 'product_cat', $category_slug ) ) {
					return array(
		'id'                              => $form_id,
		'bulk_id'                         => 0,
		'display_title'                   => '',
		'display_description'             => '',
		'disable_woocommerce_price'       => 'no',
		'price_before'                    => '',
		'price_after'                     => '',
		'disable_calculations'            => 'no',
		'disable_label_subtotal'          => 'no',
		'disable_label_options'           => 'no',
		'disable_label_total'             => 'no',
		'disable_anchor'                  => 'no',
		'label_subtotal'                  => 'Subtotal',
		'label_options'                   => 'Options',
		'label_total'                     => 'Total',
		'use_ajax'                        => 'no',
		'enable_cart_edit'                => 'no',
		'enable_cart_edit_remove'         => 'yes',
		'keep_cart_entries'               => 'no',
		'send_notifications'              => 'no',
		'enable_cart_quantity_management' => 'no',
		'cart_quantity_field'             => '',
		'update_payment_details'          => 'no',
		'display_totals_location'         => 'after'
	);
			}
		}
	}

	return $default_data;
}

great!!! thanks!!!