Add function to reset specific MRVS columns

Author: hanna-g-sn

Client-Side Components/Catalog Client Script/Normalise and Reset a MRVS based on Variable Changes/variant_reset_specific_columns.js

@@ -0,0 +1,17 @@
+function onChange(control, oldValue, newValue, isLoading) {
+  if (isLoading) return;
+
+  var MRVS_NAME = 'MY_MRVS';
+  var COLUMNS_TO_CLEAR = ['env', 'region'];
+
+  var rows = [];
+  try { rows = JSON.parse(g_form.getValue(MRVS_NAME) || '[]'); } catch (e) {}
+  if (!Array.isArray(rows)) rows = [];
+
+  rows.forEach(function(row) {
+    COLUMNS_TO_CLEAR.forEach(function(col) { if (row.hasOwnProperty(col)) row[col] = ''; });
+  });
+
+  g_form.setValue(MRVS_NAME, JSON.stringify(rows));
+}
+