Add Custom Product Pricing Form in Woocommerce WordPress https://ntcde.com/wordpress/them-form-tinh-gia-san-pham-trong-woocommerce-wordpress.html

Add Custom Product Pricing Form in Woocommerce WordPress

//============
//Add woo custom field
add_action( 'woocommerce_product_options_advanced', 'ntc_add_custom_field_product_dashboard_advanced_tab' );
function ntc_add_custom_field_product_dashboard_advanced_tab() {
	global $post;

	$custom_price_form_product_option = get_post_meta( $post->ID, '_custom_price_form_of_product', true );
	echo '<div class="options_group ">';
	// Checkbox Field
	woocommerce_wp_checkbox( array(
		'id'          => '_custom_price_form_of_product',
		'description' => __( 'Show custom price form of product', 'woocommerce' ),
		'label'       => __( 'Show custom price form of product', 'woocommerce' ),
		'value'       => $custom_price_form_product_option,
	) );
	echo '</div>';
}

//Save data
add_action( 'woocommerce_process_product_meta', 'ntc_save_custom_product_fields' );
function ntc_save_custom_product_fields( $post_id ) {
	$_custom_price_form_of_product = isset( $_POST['_custom_price_form_of_product'] ) ? 'yes' : 'no';
	//=========
	update_post_meta( $post_id, '_custom_price_form_of_product', esc_attr( $_custom_price_form_of_product ) );
}

//show to frontend
add_action( 'woocommerce_before_add_to_cart_button', 'ntc_show_custom_input_field_to_single_product', 0 );
function ntc_show_custom_input_field_to_single_product() {
	global $post;

	$custom_price_form_product_option = get_post_meta( $post->ID, '_custom_price_form_of_product', true );
	$product                          = wc_get_product( $post->ID );

	//Check is product and form is enable -> show on single product
	if ( is_product() && $custom_price_form_product_option == 'yes' ) { ?>
        <table id="ntc_price_calculator">
			<tbody>
                <tr class="price-table-row length-input">
                    <td>
                        <label for="length_value">Chiều dài</label>
                    </td>
                    <td style="text-align:right;">
                        <div class="input-wrap">
                            <input type="number" name="length_value" id="length_value" class="amount_needed" autocomplete="off" required>
                        </div>
                    </td>
                </tr>
                <tr class="price-table-row width-input">
                    <td>
                        <label for="width_value">Chiều rộng</label>
                    </td>
                    <td style="text-align:right;">
                        <div class="input-wrap">
                            <input type="number" name="width_value" id="width_value" class="amount_needed" autocomplete="off" required>
                        </div>
                    </td>
                </tr>

                <tr class="price-table-row total-row">
                    <td>Thành tiền</td>
                    <td style="text-align:right;"><span class="standard-total" data-product-price="<?php echo $product->get_price(); ?>">0</span></td>
                </tr>
			</tbody>
		</table>
		<?php
		// custom js form
		echo "<script>
			jQuery(document).ready(function() {
			    jQuery('#length_value, #width_value').on('change', function (e) {
			        let length = jQuery('#length_value').val(),
			        width = jQuery('#width_value').val(),
			        product_price = jQuery('.standard-total[data-product-price]').data('product-price');
			        length =length? parseFloat(length):0;
			        width =width? parseFloat(width):0;
			        product_price = parseFloat(product_price);
			        let total = length*width*product_price;
			        jQuery('.standard-total[data-product-price]').html((length*width)+'m<sup>2</sup> -- '+total.toLocaleString('vi-VN') +'₫');
			        console.log(length, width,product_price,total.toLocaleString('vi-VN'));
			    })
			});
			</script>";
	}
}

// Set custom field and  calculated price as custom cart data in the cart item
add_filter( 'woocommerce_add_cart_item_data', 'ntc_save_custom_data_in_cart_object', 30, 3 );
function ntc_save_custom_data_in_cart_object( $cart_item_data, $product_id, $variation_id ) {
	if ( ! isset( $_POST['length_value'] ) || ! isset( $_POST['width_value'] ) ) {
		return $cart_item_data;
	}
	$length_value  = isset( $_POST['length_value'] ) ? floatval( $_POST['length_value'] ) : 0;
	$width_value   = isset( $_POST['width_value'] ) ? floatval( $_POST['width_value'] ) : 0;
	$lVal          = floatval( $length_value < 0 ? $length_value * - 1 : $length_value );
	$wVal          = floatval( $width_value < 0 ? $width_value * - 1 : $width_value );
	$product       = wc_get_product( $product_id );
	$product_price = floatval( $product->get_price() );

	$price_total = $lVal * $wVal * $product_price;

	$cart_item_data['custom_data']['price']  = $price_total;
	$cart_item_data['custom_data']['length'] = $length_value . ' (m)';
	$cart_item_data['custom_data']['width']  = $width_value . ' (m)';

	return $cart_item_data;
}

// Set the new calculated price of the cart item
add_action( 'woocommerce_before_calculate_totals', 'ntc_calculate_product_fee', 99, 1 );
function ntc_calculate_product_fee( $cart ) {
	if ( is_admin() && ! defined( 'DOING_AJAX' ) ) {
		return;
	}
	if ( did_action( 'woocommerce_before_calculate_totals' ) >= 2 ) {
		return;
	}
	foreach ( $cart->get_cart() as $cart_item ) {
		if ( isset( $cart_item['custom_data']['price'] ) ) {
			// Get the new calculated price
			$new_price = (float) $cart_item['custom_data']['price'];
			// Set the new calculated price
			$cart_item['data']->set_price( $new_price );
		}
	}
}

//Show price in cart item
add_filter( 'woocommerce_cart_item_product', 'ntc_woo_filter_cart_item_product', 20, 3 );
function ntc_woo_filter_cart_item_product( $cart_data, $cart_item, $cart_item_key ) {
	if ( isset( $cart_item['custom_data']['price'] ) ) {
		// Get the new calculated price
		$new_price = (float) $cart_item['custom_data']['price'];
		// Set the new calculated price
		$cart_data->set_price( $new_price );
	}

	return $cart_data;
}

// Display Custom text in cart and checkout pages
add_filter( 'woocommerce_get_item_data', 'ntc_render_meta_on_cart_and_checkout', 99, 2 );
function ntc_render_meta_on_cart_and_checkout( $cart_data, $cart_item = null ) {
	if ( isset( $cart_item['custom_data']['length'] ) ) {
		$cart_data[] = array( "name" => "Length", "value" => $cart_item["custom_data"]["length"] );
	}
	if ( isset( $cart_item['custom_data']['width'] ) ) {
		$cart_data[] = array( "name" => "Width", "value" => $cart_item["custom_data"]["width"] );
	}

	return $cart_data;
}

// Save the custom text as order item data (displaying it in order and notifications)
add_action( 'woocommerce_add_order_item_meta', 'ntc_order_meta_handler', 99, 3 );
function ntc_order_meta_handler( $item_id, $values, $cart_item_key ) {
	if ( isset( $values['custom_data']['length'] ) ) {
		wc_add_order_item_meta( $item_id, "Length", $values["custom_data"]["length"] );
	}
	if ( isset( $values['custom_data']['width'] ) ) {
		wc_add_order_item_meta( $item_id, "Width", $values["custom_data"]["width"] );
	}
}
//End woo custom field