better error handling

Author: jackbrookes

Assets/UXF/Scripts/Etc/Tracker.cs

@@ -84,7 +84,7 @@ public void RecordRow()
                 string[] values = GetCurrentValues();
 
                 if (values.Length != customHeader.Length)
-                    throw new InvalidDataException(string.Format("GetCurrentValues provided {0} values but expected the same as the number of headers! {1}", values.Length, customHeader.Length));
+                    throw new System.InvalidOperationException(string.Format("GetCurrentValues provided {0} values but expected the same as the number of headers! {1}", values.Length, customHeader.Length));
 
                 string[] row = new string[values.Length + 1];
 

Assets/UXF/Scripts/Session.cs

@@ -277,11 +277,18 @@ public void CopyFileToSessionFolder(string filePath)
         /// <param name="dict">Dictionary object to write</param>
 
         /// <param name="objectName">Name of the object (is used for file name)</param>
-        void WriteDictToSessionFolder(Dictionary<string, object> dict, string objectName)
+        public void WriteDictToSessionFolder(Dictionary<string, object> dict, string objectName)
         {
-            string fileName = string.Format("{0}.json", objectName);
-            string filePath = Path.Combine(path, fileName);
-            fileIOManager.ManageInWorker(() => fileIOManager.WriteJson(filePath, dict));
+            if (hasInitialised)
+            {
+                string fileName = string.Format("{0}.json", objectName);
+                string filePath = Path.Combine(path, fileName);
+                fileIOManager.ManageInWorker(() => fileIOManager.WriteJson(filePath, dict));
+            }
+            else
+            {
+                throw new System.InvalidOperationException("Can't write dictionary before session has initalised!");
+            }
         }