get article no

src/core/article.cpp

@@ -21,3 +21,7 @@ std::string Article::getDescription() { return description_; }
 Seller* Article::getSeller() { return sellerPtr_; }
 
 int Article::getPrice() { return price_; }
+
+int Article::getArticleNo() {
+    return articleNo_;
+}

src/core/article.h

@@ -24,6 +24,7 @@ class Article : public Entity
     //void setSeller(std::shared_ptr<Seller> sellerPtr);
     void setSeller(Seller* sellerPtr);
 
+    int getArticleNo();
     std::string getDescription();
     Seller* getSeller();
     int getPrice();