1 files changed, 15 insertions, 1 deletions
diff --git a/shop.fnl b/shop.fnl
index fea398e..9711095 100644
--- a/shop.fnl
+++ b/shop.fnl
@@ -111,6 +111,19 @@
       ORDER BY order_lines.creation_time ASC"
      [order-id])))
 
+(fn in-basket? [db order-id product-name]
+  (= 1
+     (#
+       (_G.must
+         (luna.db.query
+           db
+           "SELECT id
+            FROM order_lines
+            WHERE order_lines.order_id = ?
+              AND order_lines.product_name = ?
+            LIMIT 1"
+           [order-id product-name])))))
+
 {: create-order
  : place-order
  : finish-order
@@ -118,4 +131,5 @@
  : order-id
  : create-order-line
  : delete-order-line
- : basket}
+ : basket
+ : in-basket?}