Send some product data at publish time in Woocommerce - php

Question

I am trying to develop a plugin for Woocommerce which it sends new published product's information to a Telegram channel. I need to get the price and image of product when it is published. but my code returns empty.
my code :
add_action('transition_post_status', 'btb_send_telegram_post', 10, 3);
function btb_send_telegram_post( $new_status, $old_status, $post ) {
if(
$old_status != 'publish'
&& $new_status == 'publish'
&& !empty($post->ID)
&& in_array( $post->post_type,array( 'product'))
) {
// product is new published.
$product = wc_get_product ( $post->ID );
$message = $product->get_short_description()."\r\n";
$message .= "price : ". $product->get_price()."\r\n";
$message .= " regular price : ". $product->get_regular_price() ."\r\n";
$message .= "sale price : ". $product->get_sale_price()."\r\n";
btb_send_message($message);
}
I think it is because the changing status of product to publish occurs before it completely saved in database. because when I save a draft before publish it returns correct prices. for that matter I need to do one of these two approaches:
Save product as a draft by my code before publish .
Use another action which it triggers after product meta is saved completely.
And now I don't have any idea how to do both of above approaches.
any advice will be appreciated.
Thank you.

Answer 1

Update 2 (the product data is not anymore empty)
You could try this custom function hooked in save_post action hook:
// Only on WooCommerce Product edit pages (Admin)
add_action( 'save_post', 'send_telegram_post', 50, 3 );
function send_telegram_post( $post_id, $post, $update ) {
if ( $post->post_type != 'product') return; // Only products
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
return $post_id; // Exit if it's an autosave
if ( $post->post_status != 'publish' )
return $post_id; // Exit if not 'publish' post status
if ( ! current_user_can( 'edit_product', $post_id ) )
return $post_id; // Exit if user is not allowed
// Check if product message has already been sent (avoiding repetition)
$message_sent = get_post_meta( $post_id, '_message_sent', true );
if( ! empty($message_sent) )
return $post_id; // Exit if message has already been sent
## ------------ MESSAGE ------------ ##
// Get active price or "price" (we check if sale price exits)
$price = empty( $_POST['_sale_price'] ) ? $_POST['_regular_price'] : $_POST['_sale_price'];
$message = '';
$rn = "\r\n";
// Title
if( ! empty( $_POST['post_title'] ) )
$message .= 'Title : ' . $_POST['post_title'] . $rn;
// Short description
if( ! empty( $_POST['excerpt'] ) )
$message .= 'Description : ' . $_POST['excerpt'] . $rn;
// Active price
if( ! empty( $price ) )
$message .= 'Price : ' . $price . "\r\n";
// Regular price
if( ! empty( $_POST['_regular_price'] ) )
$message .= 'Regular price : ' . $_POST['_regular_price'] . $rn;
// Sale price
if( ! empty( $_POST['_sale_price'] ) )
$message .= 'Sale price : ' . $_POST['_sale_price'] . $rn;
// Send message custom function
btb_send_message( $message );
// Just for testing (uncomment below to enable):
// update_post_meta( $post_id, '_message_content', $message ); // Message in database
// add custom meta field to mark this product as "message sent"
update_post_meta( $post_id, '_message_sent', '1' );
}
Code goes in function.php file of your active child theme (or active theme). Tested and works.