From 86f397434c82eab32deb6b882f3df95fac56e80d Mon Sep 17 00:00:00 2001
From: "Pfeil, Scott Robert" <scott.pfeil3@verizonwireless.com>
Date: Tue, 12 Jan 2021 12:36:22 -0500
Subject: [PATCH] convenience function for uistackview

---
 MVMCoreUI/Categories/UIStackView+Extension.swift | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/MVMCoreUI/Categories/UIStackView+Extension.swift b/MVMCoreUI/Categories/UIStackView+Extension.swift
index b88dfb51..227f057d 100644
--- a/MVMCoreUI/Categories/UIStackView+Extension.swift
+++ b/MVMCoreUI/Categories/UIStackView+Extension.swift
@@ -14,6 +14,18 @@ extension UIStackView: MVMCoreViewProtocol {
             (view as? MVMCoreViewProtocol)?.updateView(size)
         }
     }
+    
+    /// A convenience function for updating molecules. If model is nil, view is hidden.
+    open func updateContainedMolecules(with models: [MoleculeModelProtocol?], _ delegateObject: MVMCoreUIDelegateObject?, _ additionalData: [AnyHashable: Any]?) {
+        for (index, item) in arrangedSubviews.enumerated() {
+            if let model = models[index] {
+                (item as? MoleculeViewProtocol)?.set(with: model, delegateObject, additionalData)
+                item.isHidden = false
+            } else {
+                item.isHidden = true
+            }
+        }
+    }
 }
 
 extension UIStackView: MoleculeViewProtocol {
@@ -23,3 +35,4 @@ extension UIStackView: MoleculeViewProtocol {
         }
     }
 }
+