[WebApiUtils] Added global predicate

WebApiUtils/BusinessManager/SqlServerManager.cs

 using System.Data.Entity;
 using System.Linq;
 using System.Linq.Expressions;
+using System.Runtime.Serialization;
 using iiie.Logs.DBO;
 using iiie.WebApiUtils.DBO;
 
         /// <returns>The DB object</returns>
         public abstract OpResult<TDbObject> DboAddToDb(TDboAdd obj);
 
+        /// <summary>
+        /// Return a global predicate that will be applied to all selects
+        /// </summary>
+        /// <returns>The expression</returns>
+        public virtual Expression<Func<TDbObject, bool>> GetGlobalSelectPredicate()
+        {
+            return x => true;
+        }
+
         /// <summary>
         /// Convert a DBO to DB object
         /// </summary>
         /// <returns>The DB object</returns>
         public abstract OpResult<TDbObject> DboEditToDb(TDboEdit obj, TDbObject edit);
 
+        /// <summary>
+        /// Helper to get real select predicate
+        /// </summary>
+        /// <returns>The global predicate</returns>
+        public static Expression<Func<TDbObject, bool>> GetGlobalSelectPredicateStatic()
+        {
+            var obj = new TThis();
+            return obj.GetGlobalSelectPredicate();
+        }
+
         /// <summary>
         /// Helper to convert DB object to DBO
         /// </summary>
         /// <returns>The object that match</returns>
         public static OpResult<TDbObject> GetSingleDbObject(DbSet<TDbObject> table, Expression<Func<TDbObject, bool>> predicate)
         {
-            var o = table.FirstOrDefault(predicate);
+            var o = table.Where(GetGlobalSelectPredicateStatic()).FirstOrDefault(predicate);
             if (o == null)
             {
                 return OpResult<TDbObject>.Error(ResultStatus.NotFound, typeof(TThis).Name + ": Value not found", "");
             return Execute((db, table) =>
             {
                 var count = table.Count(predicate);
-                var results = table.OrderBy(orderBy).Where(predicate).Skip(page * perPage).Take(perPage).Select(DbToDboGetStatic).ToList();
+                var results = table.OrderBy(orderBy).Where(GetGlobalSelectPredicateStatic())
+                    .Where(predicate).Skip(page * perPage).Take(perPage).Select(DbToDboGetStatic).ToList();
                 var result = new DboGetMultiple<TDboGet>
                 {
                     Count = count,