From d7f258b83069d5acf8bd83dc8302f40e85451ad9 Mon Sep 17 00:00:00 2001
From: Sebastien Ros <none@none>
Date: Sun, 30 Oct 2011 10:46:16 -0700
Subject: [PATCH] Adding CommentsFilter

--HG--
branch : 1.x
---
 .../Projections/CommentsFilter.cs             | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 src/Orchard.Web/Modules/Orchard.Comments/Projections/CommentsFilter.cs

diff --git a/src/Orchard.Web/Modules/Orchard.Comments/Projections/CommentsFilter.cs b/src/Orchard.Web/Modules/Orchard.Comments/Projections/CommentsFilter.cs
new file mode 100644
index 000000000..9567f65be
--- /dev/null
+++ b/src/Orchard.Web/Modules/Orchard.Comments/Projections/CommentsFilter.cs
@@ -0,0 +1,39 @@
+using System;
+using System.Linq;
+using Orchard.ContentManagement;
+using Orchard.Events;
+using Orchard.Localization;
+using Orchard.Comments.Models;
+
+namespace Orchard.Comments.Projections {
+    public interface IFilterProvider : IEventHandler {
+        void Describe(dynamic describe);
+    }
+
+    public class CommentsFilter : IFilterProvider {
+
+        public CommentsFilter() {
+            T = NullLocalizer.Instance;
+        }
+
+        public Localizer T { get; set; }
+
+        public void Describe(dynamic describe) {
+            describe.For("Comments", T("Comments"), T("Comments"))
+                .Element("HasComments", T("Has Comments"), T("Commented content items"),
+                    (Action<dynamic>)ApplyFilter,
+                    (Func<dynamic, LocalizedString>)DisplayFilter,
+                    null
+                );
+        }
+
+        public void ApplyFilter(dynamic context) {
+            var query = (IContentQuery<ContentItem>)context.Query;
+            context.Query = query.Where<CommentsPartRecord>(x => x.CommentPartRecords.Any());
+        }
+
+        public LocalizedString DisplayFilter(dynamic context) {
+            return T("Has comments");
+        }
+    }
+}
\ No newline at end of file