Get the selected variation attributes from orders in Woocommerce 3 - php

Question

In Woocommerce, I have a report in the admin area that tallies up products sold.There are only 5 products sold on the site but there are 1 or 2 variations on some. The report works great but ignores the variations.
I need to retrieve the attribute value from items ordered to display the data accurately. How do I do this?
get_variation_description() is not working the way I'm applying it.
My code:
$order = wc_get_order( $vs);
//BEGIN NEW RETRIEVE ORDER ITEMS FROM ORDER
foreach( $order->get_items() as $item_id => $item_product ){
$ods = $item_product->get_product_id(); //Get the product ID
$odqty= $item_product->get_quantity(); //Get the product QTY
$item_name = $item_product->get_name(); //Get the product NAME
$item_variation = $item_product->get_variation_description(); //NOT WORKING
}

Answer 1

2020 Update - Handling "Custom Product Attributes" (revamped code)
The WC_Product method get_variation_description() is outdated and deprecated. It's replaced by get_description() method. So you need to get the WC_Product object first.
To get the selected variation attributes, you will use get_variation_attributes( ) method.
// Get an instance of the WC_Order object from an Order ID
$order = wc_get_order( $order_id );
// Loop though order "line items"
foreach( $order->get_items() as $item_id => $item ){
$product_id = $item->get_product_id(); //Get the product ID
$quantity = $item->get_quantity(); //Get the product QTY
$product_name = $item->get_name(); //Get the product NAME
// Get an instance of the WC_Product object (can be a product variation too)
$product = $item->get_product();
// Get the product description (works for product variation too)
$description = $product->get_description();
// Only for product variation
if( $product->is_type('variation') ){
// Get the variation attributes
$variation_attributes = $product->get_variation_attributes();
// Loop through each selected attributes
foreach($variation_attributes as $attribute_taxonomy => $term_slug ){
// Get product attribute name or taxonomy
$taxonomy = str_replace('attribute_', '', $attribute_taxonomy );
// The label name from the product attribute
$attribute_name = wc_attribute_label( $taxonomy, $product );
// The term name (or value) from this attribute
if( taxonomy_exists($taxonomy) ) {
$attribute_value = get_term_by( 'slug', $term_slug, $taxonomy )->name;
} else {
$attribute_value = $term_slug; // For custom product attributes
}
}
}
}
Tested and works for a product variation as all other product types…

Answer 2

It works perfectly to display order item name and attributes key
foreach( $order->get_items() as $order_item_product ) {
$item_meta_data = $order_item_product->get_meta_data();
echo $product_name = $order_item_product->get_name();
echo '<br>';
foreach( $item_meta_data as $meta_data ) {
$meta_data_as_array = $meta_data->get_data();
echo $meta_data_as_array['key'].': '.$meta_data_as_array['value'].'<br>';
}
}

Answer 3

Based on the accepted answer This is so that the typo could be corrected ( i don't have the reputation to do anything else).
notice the $term_slug on the $attribute_value property definition. that is what was missing the $.
// Get an instance of the WC_Order object from an Order ID
$order = wc_get_order( $order_id );
// Loop though order "line items"
foreach( $order->get_items() as $item_id => $item_product ){
$product_id = $item_product->get_product_id(); //Get the product ID
$quantity = $item_product->get_quantity(); //Get the product QTY
$product_name = $item_product->get_name(); //Get the product NAME
// Get an instance of the WC_Product object (can be a product variation too)
$product = $item_product->get_product();
// Get the product description (works for product variation)
$description = $product->get_description();
// Only for product variation
if($product->is_type('variation')){
// Get the variation attributes
$variation_attributes = $product->get_variation_attributes();
// Loop through each selected attributes
foreach($variation_attributes as $attribute_taxonomy => $term_slug){
$taxonomy = str_replace('attribute_', '', $attribute_taxonomy );
// The name of the attribute
$attribute_name = get_taxonomy( $taxonomy )->labels->singular_name;
// The term name (or value) for this attribute
$attribute_value = get_term_by( 'slug', $term_slug, $taxonomy )->name;
}
}
}

Answer 4

For anyone coming across this in the future, I ran into an issue where the last attribute value was not displaying, but when I was looking at orders in the admin it was displaying correctly, so I took a dive into the WooCommerce source code and modified theirs for my needs. You can see their code here if you want to modify it yourself:
\woocommerce\includes\admin\meta-boxes\views\html-order-item-meta.php
Here's what I did to display all keys and values:
$attribute_list = array();
// Start modified code from html-order-item-meta.php
$hidden_order_itemmeta = apply_filters(
'woocommerce_hidden_order_itemmeta',
array(
'_qty',
'_tax_class',
'_product_id',
'_variation_id',
'_line_subtotal',
'_line_subtotal_tax',
'_line_total',
'_line_tax',
'method_id',
'cost',
'_reduced_stock',
'_restock_refunded_items',
)
);
if ($meta_data = $item->get_formatted_meta_data('')) {
foreach ($meta_data as $meta_id => $meta) {
if (in_array($meta->key, $hidden_order_itemmeta, true)) {
continue;
}
$display_key = sanitize_text_field($meta->display_key);
$display_value = sanitize_text_field(force_balance_tags($meta->display_value));
$attribute_list[] = array($display_key => $display_value);
}
}
// End modified code from html-order-item-meta.php
if ($attribute_list) {
$attribute = '';
foreach ($attribute_list as $attributes) {
foreach ($attributes as $attr => $value) {
$attribute .= " - " . $attr . " : " . $value;
}
}
echo $attribute;
}
My code adds each key and value to an array and then loops through to append the key and value to the end of a string with separators. This is what I needed for what I was working on, but it can be easily adapted to fit your needs.