Calculate and display deposit in cart total en check-out total - php

Question

I have a WooCommerce webshop with different kind of beers from all over the world. If you return a empty bottle you get a deposit of 0,10 or something like that. I made an ACF (Advanced Custom Field) where I can add the deposit price for an empty bottle. I managed to add this to my cart page and display it under the single price of a bottle (0,10) and under the subtotal if there are more bottles (0,40).
This is working in cart and checkout but I want to make a sum off the total deposit money if you return the bottles to the store.
How can I create a function that calculate the sum of all bottles in the cart that has a deposit?
I managed to get the first this working with this functions:
add_filter( 'woocommerce_cart_item_price', 'add_deposit_value_to_cart_single' , 10, 3 );
add_filter( 'woocommerce_cart_item_subtotal', 'add_deposit_value_to_cart_total', 10, 3 );
/**
* Statiegeld toevoegen onder single prijs product winkelwagen
*/
function add_deposit_value_to_cart_single( $product_price, $values ) {
$statiegeld = get_field( "statiegeld", $values['product_id']);
$dep_total = $statiegeld;
if( ! empty( $dep_total ) )
return $product_price . '<br /><small class="deposit_label">' . sprintf( __( 'statiegeld %s' ), wc_price( $dep_total ) ) . '</small>';
return $product_price;
}
/**
* Statiegeld toevoegen aan subtotaal in winkelwagen
*/
function add_deposit_value_to_cart_total( $product_price, $values ) {
$statiegeld = get_field( "statiegeld", $values['product_id']);
$dep_total = $statiegeld * $values['quantity'];
if( ! empty( $dep_total ) )
return $product_price . '<br /><small class="deposit_label">' . sprintf( __( 'statiegeld totaal %s' ), wc_price( $dep_total ) ) . '</small>';
return $product_price;
}
If someone has an idea I am very grateful because I can't figure it out.

Answer 1

There are some errors with the arguments of both functions.
Try this:
/**
* Statiegeld toevoegen onder single prijs product winkelwagen
*/
add_filter( 'woocommerce_cart_item_price', 'add_deposit_value_to_cart_single' , 10, 3 );
function add_deposit_value_to_cart_single( $price, $cart_item, $cart_item_key ) {
$statiegeld = get_field( "statiegeld", $cart_item['product_id']);
$dep_total = $statiegeld;
if( ! empty( $dep_total ) )
return $price . '<br /><small class="deposit_label">' . sprintf( __( 'statiegeld %s' ), wc_price( $dep_total ) ) . '</small>';
return $price;
}
/**
* Statiegeld toevoegen aan subtotaal in winkelwagen
*/
add_filter( 'woocommerce_cart_item_subtotal', 'add_deposit_value_to_cart_total', 10, 3 );
function add_deposit_value_to_cart_total( $price, $cart_item, $cart_item_key ) {
$statiegeld = get_field( "statiegeld", $cart_item['product_id']);
$dep_total = $statiegeld * $cart_item['quantity'];
if ( ! empty( $dep_total ) ) {
return $price . '<br /><small class="deposit_label">' . sprintf( __( 'statiegeld totaal %s' ), wc_price( $dep_total ) ) . '</small>';
}
return $price;
}
I have tested the code and it works fine. Here is the result:

Answer 2

I changed my whole code to this and this is working. This wil show a deposit in the cart summary under the price and a total deposit if it are more items under the subtotal.
Also in the cart total summary it is displaying the depost total of all items and in checkout too.
add_filter( 'woocommerce_cart_item_price', 'add_deposit_value_to_cart_single' , 10, 3 );
add_filter( 'woocommerce_cart_item_subtotal', 'add_deposit_value_to_cart_total', 10, 3 );
/**
* Statiegeld toevoegen aan single product
*/
function add_deposit_value_to_cart_single( $product_price, $values, $cart_item_key ) {
// Get your custom fields data
$custom_field1 = get_post_meta( $values['product_id'], '_aantal_statiegeld', true );
//$statiegeld = get_field( "statiegeld", $values['product_id']);
$dep_total = $custom_field1;
if( ! empty( $dep_total ) )
return $product_price . '<br /><small class="deposit_label">' . sprintf( __( 'statiegeld %s' ), wc_price( $dep_total ) ) . '</small>';
return $product_price;
}
/**
* Statiegeld toevoegen aan totaal
*/
function add_deposit_value_to_cart_total( $product_price, $values, $cart_item_key ) {
// Get your custom fields data
$custom_field1 = get_post_meta( $values['product_id'], '_aantal_statiegeld', true );
//$custom_field1 = get_field( "statiegeld", $values['product_id']);
$dep_total = $custom_field1 * $values['quantity'];
if( ! empty( $dep_total ) )
return $product_price . '<br /><small class="deposit_label">' . sprintf( __( 'statiegeld totaal %s' ), wc_price( $dep_total ) ) . '</small>';
return $product_price;
}
// Display Fields using WooCommerce Action Hook
add_action( 'woocommerce_product_options_general_product_data', 'woocom_general_product_data_custom_field' );
function woocom_general_product_data_custom_field() {
// Create a custom text field
// Number Field
woocommerce_wp_text_input(
array(
'id' => '_aantal_statiegeld',
'label' => __( 'Statiegeld', 'woocommerce' ),
'placeholder' => '',
'description' => __( 'Vul het statiegeld hier in', 'woocommerce' ),
'type' => 'number',
'custom_attributes' => array(
'step' => 'any',
'min' => '0,10'
)
)
);
}
// Hook to save the data value from the custom fields
add_action( 'woocommerce_process_product_meta', 'woocom_save_general_proddata_custom_field' );
/** Hook callback function to save custom fields information */
function woocom_save_general_proddata_custom_field( $post_id ) {
// Save Number Field
$number_field = $_POST['_aantal_statiegeld'];
if( ! empty( $number_field ) ) {
update_post_meta( $post_id, '_aantal_statiegeld', esc_attr( $number_field ) );
}
}
add_action( 'woocommerce_product_additional_information', 'custom_data_in_product_add_info_tab', 20, 1 );
function custom_data_in_product_add_info_tab( $product ) {
//Product ID - WooCommerce compatibility
$product_id = method_exists( $product, 'get_id' ) ? $product->get_id() : $product->id;
// Get your custom fields data
$custom_field1 = get_post_meta( $product_id, '_aantal_statiegeld', true );
// Set your custom fields labels (or names)
$label1 = __( 'Statiegeld', 'woocommerce');
// The Output
echo '<h3>'. __('Statiegeld totaal', 'woocommerce') .'</h3>
<table class="custom-fields-data">
<tbody>
<tr class="custom-field1">
<th>'. $label1 .'</th>
<td>'. $custom_field1 .'</td>
</tr>
</tbody>
</table>';
}
add_action( 'woocommerce_cart_totals_before_shipping', 'display_cart_volume_total', 20 );
add_action( 'woocommerce_review_order_before_shipping', 'display_cart_volume_total', 20 );
function display_cart_volume_total() {
$total_volume = 0;
// Loop through cart items and calculate total volume
foreach( WC()->cart->get_cart() as $cart_item ){
$product_volume = (float) get_post_meta( $cart_item['product_id'], '_aantal_statiegeld', true );
$total_volume += $product_volume * $cart_item['quantity'];
}
if( $total_volume > 0 ){
// The Output
echo ' <tr class="cart-total-volume">
<th>' . __( "Statiegeld totaal", "woocommerce" ) . '</th>
<td data-title="total-statiegeld">€' . number_format($total_volume, 2, ',', '.') . '</td>
</tr>';
}
}