Details and queue management

WebCms/Controllers/EnforceTrueAttribute.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Web.Mvc;
+
+namespace LeafWeb.WebCms.Controllers
+{
+	// http://stackoverflow.com/a/9036075/99492
+	public class EnforceTrueAttribute : ValidationAttribute, IClientValidatable
+	{
+		public override bool IsValid(object value)
+		{
+			if (value == null) return false;
+			if (value.GetType() != typeof(bool)) throw new InvalidOperationException("can only be used on boolean properties.");
+			return (bool)value;
+		}
+
+		public override string FormatErrorMessage(string name)
+		{
+			return "The " + name + " field must be checked in order to continue.";
+		}
+
+		public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
+		{
+			yield return new ModelClientValidationRule
+			{
+				ErrorMessage = 
+					string.IsNullOrEmpty(ErrorMessage) 
+					? FormatErrorMessage(metadata.DisplayName) 
+					: ErrorMessage,
+				ValidationType = "enforcetrue"
+			};
+		}
+	}
+}