Replace previous log search for log detail page

Web/Controllers/LogController.cs

@@ -85,11 +85,10 @@ namespace MileageTraker.Web.Controllers
 		public ActionResult PreviousDetails(int id)
         {
 			var log = _dataService.GetLog(id);
-			var previousLog = _dataService.SearchPreviousLog(log);
 			int logId;
-			if (previousLog != null)
+			if (log.VehiclePreviousLog != null)
 			{
-				logId = previousLog.LogId;
+				logId = log.VehiclePreviousLog.LogId;
 			}
 			else
 			{
@@ -101,8 +100,7 @@ namespace MileageTraker.Web.Controllers
 
 		public ActionResult NextDetails(int id)
 		{
-			var log = _dataService.GetLog(id);
+			var nextLog = _dataService.GetNextLog(id);
-			var nextLog = _dataService.SearchNextLog(log);
 			int logId;
 			if (nextLog != null)
 			{

Web/DAL/DataService.cs

@@ -73,10 +73,7 @@ namespace MileageTraker.Web.DAL
 		{
 			var log = _db.Logs.Find(id);
 
-			var nextLog =
+			var nextLog = GetNextLog(log.LogId);
-				(from l in _db.Logs
-				 where l.VehiclePreviousLogId == log.LogId
-				 select l).FirstOrDefault();
 			if (nextLog != null)
 				nextLog.VehiclePreviousLog = log.VehiclePreviousLog;
 
@@ -96,6 +93,14 @@ namespace MileageTraker.Web.DAL
 			return _db.Logs.Find(id);
 		}
 
+		public Log GetNextLog(int id)
+		{
+			return
+				(from l in _db.Logs
+				 where l.VehiclePreviousLogId == id
+				 select l).FirstOrDefault();
+		}
+
 		public IEnumerable<int> GetValidLogYears()
 		{
 			return