improved performance of item counts

MediaBrowser.Controller/Entities/Extensions.cs

@@ -0,0 +1,51 @@
+using MediaBrowser.Model.Entities;
+using System;
+using System.Linq;
+
+namespace MediaBrowser.Controller.Entities
+{
+    public static class Extensions
+    {
+        /// <summary>
+        /// Adds the tagline.
+        /// </summary>
+        /// <param name="item">The item.</param>
+        /// <param name="tagline">The tagline.</param>
+        /// <exception cref="System.ArgumentNullException">tagline</exception>
+        public static void AddTagline(this BaseItem item, string tagline)
+        {
+            if (string.IsNullOrWhiteSpace(tagline))
+            {
+                throw new ArgumentNullException("tagline");
+            }
+
+            if (!item.Taglines.Contains(tagline, StringComparer.OrdinalIgnoreCase))
+            {
+                item.Taglines.Add(tagline);
+            }
+        }
+
+        public static void AddTrailerUrl(this BaseItem item, string url, bool isDirectLink)
+        {
+            if (string.IsNullOrWhiteSpace(url))
+            {
+                throw new ArgumentNullException("url");
+            }
+
+            var current = item.RemoteTrailers.FirstOrDefault(i => string.Equals(i.Url, url, StringComparison.OrdinalIgnoreCase));
+
+            if (current != null)
+            {
+                current.IsDirectLink = isDirectLink;
+            }
+            else
+            {
+                item.RemoteTrailers.Add(new MediaUrl
+                {
+                    Url = url,
+                    IsDirectLink = isDirectLink
+                });
+            }
+        }
+    }
+}