server/AyaNova/biz/TagUtil.cs

@@ -0,0 +1,40 @@
+using System.Collections.Generic;
+using System;
+using AyaNova.Util;
+
+namespace AyaNova.Biz
+{
+    public static class TagUtil
+    {
+        public static List<string> NormalizeTags(List<string> inTags)
+        {
+            if (inTags==null || inTags.Count == 0) return inTags;
+
+            List<string> outTags = new List<string>();
+            foreach (var tag in inTags)
+            {
+                outTags.Add(CleanTagName(tag));
+            }
+            return outTags;
+        }
+
+
+        private static string CleanTagName(string inObj)
+        {
+            //Must be lowercase per rules 
+            //This may be naive when we get international customers but for now supporting utf-8 and it appears it's safe to do this with unicode
+            inObj = inObj.ToLowerInvariant();
+            //No spaces in tags, replace with dashes
+            inObj = inObj.Replace(" ", "-");
+            //Remove multiple dash sequences
+            inObj = System.Text.RegularExpressions.Regex.Replace(inObj, "-+", "-");
+            //Ensure doesn't start or end with a dash
+            inObj = inObj.Trim('-');
+            //No longer than 255 characters
+            inObj = StringUtil.MaxLength(inObj, 255);
+            return inObj;
+        }
+
+
+    }//eoc
+}//ens

server/AyaNova/biz/WidgetBiz.cs

@@ -87,6 +87,7 @@ namespace AyaNova.Biz
                 //Test get serial id visible id number from generator
                 outObj.Serial = ServerBootConfig.WIDGET_SERIAL.GetNext();
 
+                outObj.Tags = TagUtil.NormalizeTags(outObj.Tags);
 
                 await ct.Widget.AddAsync(outObj);
                 await ct.SaveChangesAsync();
@@ -118,6 +119,7 @@ namespace AyaNova.Biz
                 outObj.OwnerId = UserId;
                 //Test get serial id visible id number from generator
                 outObj.Serial = ServerBootConfig.WIDGET_SERIAL.GetNext();
+                outObj.Tags = TagUtil.NormalizeTags(outObj.Tags);
 
                 TempContext.Widget.Add(outObj);
                 TempContext.SaveChanges();
@@ -272,10 +274,14 @@ namespace AyaNova.Biz
 
             //Replace the db object with the PUT object
             CopyObject.Copy(inObj, dbObj, "Id,Serial");
+
+            dbObj.Tags = TagUtil.NormalizeTags(dbObj.Tags);
+
             //Set "original" value of concurrency token to input token
             //this will allow EF to check it out
             ct.Entry(dbObj).OriginalValues["ConcurrencyToken"] = inObj.ConcurrencyToken;
 
+
             Validate(dbObj, false);
             if (HasErrors)
                 return false;
@@ -298,6 +304,9 @@ namespace AyaNova.Biz
 
             //Do the patching
             objectPatch.ApplyTo(dbObj);
+            
+            dbObj.Tags = TagUtil.NormalizeTags(dbObj.Tags);
+
             ct.Entry(dbObj).OriginalValues["ConcurrencyToken"] = concurrencyToken;
             Validate(dbObj, false);
             if (HasErrors)

server/AyaNova/models/Widget.cs

@@ -26,6 +26,10 @@ namespace AyaNova.Models
         public int Count {get;set;}
         public List<string> Tags { get; set; }
 
+        public Widget(){
+            Tags=new List<string>();
+        }
+
     }
 
 }