server/AyaNova/biz/BizObjectExistsInDatabase.cs

@@ -0,0 +1,65 @@
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.JsonPatch;
+using EnumsNET;
+using AyaNova.Util;
+using AyaNova.Api.ControllerHelpers;
+using AyaNova.Biz;
+using AyaNova.Models;
+
+
+namespace AyaNova.Biz
+{
+
+
+    //TODO: UNTESTED, UNUSED (SO FAR)CODE
+    //This was just blocked out because I know I will need it in future
+    internal static class BizObjectExistsInDatabase
+    {
+
+        internal static bool Exists(AyaTypeId tid)
+        {
+            return Exists(tid.ObjectType, tid.ObjectId);
+        }
+
+
+        //Returns existance status of object type and id specified in database
+        internal static bool Exists(AyaType aytype, long id, AyContext ct = null)
+        {
+            //new up a context??
+            if (ct == null)
+            {
+                ct = ServiceProviderProvider.DBContext;
+            }
+            switch (aytype)
+            {
+                case AyaType.User:
+                    return ct.User.Any(m => m.Id == id);
+                case AyaType.Widget:
+                    return ct.Widget.Any(m => m.Id == id);
+                case AyaType.Tag:
+                    return ct.Tag.Any(m => m.Id == id);
+                case AyaType.TagGroup:
+                    return ct.TagGroup.Any(m => m.Id == id);
+
+
+
+                default:
+                    throw new System.NotSupportedException($"AyaNova.BLL.BizObjectExistsInDatabase::Exists type {aytype.ToString()} is not supported");
+            }
+
+        }
+
+
+
+
+
+        /////////////////////////////////////////////////////////////////////
+
+    }//eoc
+
+
+}//eons
+