FluentCart Product Transaction Hash Lookup, add to child theme functions.php

code.php

<?php

/**
 * FluentCart Product Transaction Hash Lookup
 * 
 * @param int $product_id The product ID to check for
 * @return string The transaction hash if product was just purchased
 */
function get_fluentcart_product_trx_hash( $product_id ) {
	
    if ( ! class_exists( '\FluentCart\App\Models\OrderTransaction' ) ) {
        return 'no_purchase';
    }
    
    // Get transaction hash from URL
    $trx_hash = sanitize_text_field( $_GET['trx_hash'] ?? '' );
    
    if ( ! $trx_hash ) {
        return 'no_purchase';
    }
    
    // Find transaction by UUID
    $transaction = \FluentCart\App\Models\OrderTransaction::where( 'uuid', $trx_hash )->first();
    
    if ( ! $transaction ) {
        return 'no_purchase';
    }
    
    // Get the order associated with this transaction
    $order = $transaction->orders()->first();
    
    if ( ! $order ) {
        return 'no_purchase';
    }
    
    // Get order items to check for the target product
    $order_items = $order->order_items()->get();
    
    $target_product_id = intval( $product_id );
    
    foreach ( $order_items as $item ) {
        if ( $item->post_id == $target_product_id ) {
            return $trx_hash;
        }
    }
    
    // Product not found in this order
    return 'no_purchase';
}

/* remember to register the custom function with bricks */
add_filter( 'bricks/code/echo_function_names', function() {
  return [
    'get_fluentcart_product_trx_hash',
  ];
} );

Usage in Bricks, using the Current URL / contains