1 files changed, 25 insertions, 0 deletions
diff --git a/Timeline/Helpers/InvalidModelResponseFactory.cs b/Timeline/Helpers/InvalidModelResponseFactory.cs
new file mode 100644
index 00000000..c792e845
--- /dev/null
+++ b/Timeline/Helpers/InvalidModelResponseFactory.cs
@@ -0,0 +1,25 @@
+using Microsoft.AspNetCore.Mvc;
+using System.Text;
+using Timeline.Models.Http;
+
+namespace Timeline.Helpers
+{
+    public static class InvalidModelResponseFactory
+    {
+        public static IActionResult Factory(ActionContext context)
+        {
+            var modelState = context.ModelState;
+
+            var messageBuilder = new StringBuilder();
+            foreach (var model in modelState)
+                foreach (var error in model.Value.Errors)
+                {
+                    messageBuilder.Append(model.Key);
+                    messageBuilder.Append(" : ");
+                    messageBuilder.AppendLine(error.ErrorMessage);
+                }
+
+            return new BadRequestObjectResult(CommonResponse.InvalidModel(messageBuilder.ToString()));
+        }
+    }
+}