Refactor IPublishedContent.GetCultureFromDomains()

src/Umbraco.Web/PublishedCache/NuCache/DomainCache.cs

@@ -4,16 +4,23 @@ using Umbraco.Web.Routing;
 
 namespace Umbraco.Web.PublishedCache.NuCache
 {
+    /// <summary>
+    /// Implements <see cref="IDomainCache"/> for NuCache.
+    /// </summary>
     internal class DomainCache : IDomainCache
     {
         private readonly SnapDictionary<int, Domain>.Snapshot _snapshot;
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DomainCache"/> class.
+        /// </summary>
         public DomainCache(SnapDictionary<int, Domain>.Snapshot snapshot, string defaultCulture)
         {
             _snapshot = snapshot;
-            DefaultCulture = defaultCulture; // capture - fast
+            DefaultCulture = defaultCulture;
         }
 
+        /// <inheritdoc />
         public IEnumerable<Domain> GetAll(bool includeWildcards)
         {
             var list = _snapshot.GetAll();
@@ -21,17 +28,23 @@ namespace Umbraco.Web.PublishedCache.NuCache
             return list;
         }
 
-        public IEnumerable<Domain> GetAssigned(int contentId, bool includeWildcards)
+        /// <inheritdoc />
+        public IEnumerable<Domain> GetAssigned(int documentId, bool includeWildcards = false)
         {
             // probably this could be optimized with an index
             // but then we'd need a custom DomainStore of some sort
 
             var list = _snapshot.GetAll();
-            list = list.Where(x => x.ContentId == contentId);
+            list = list.Where(x => x.ContentId == documentId);
             if (includeWildcards == false) list = list.Where(x => x.IsWildcard == false);
             return list;
         }
 
+        /// <inheritdoc />
+        public bool HasAssigned(int documentId, bool includeWildcards = false)
+            => documentId > 0 && GetAssigned(documentId, includeWildcards).Any();
+
+        /// <inheritdoc />
         public string DefaultCulture { get; }
     }
 }