Adding pagination to the tag search page.

work item: 16924

--HG--
branch : dev

src/Orchard.Web/Modules/Orchard.Tags/Controllers/HomeController.cs

@@ -7,6 +7,7 @@ using Orchard.Logging;
 using Orchard.Tags.Services;
 using Orchard.Tags.ViewModels;
 using Orchard.Themes;
+using Orchard.UI.Navigation;
 
 namespace Orchard.Tags.Controllers {
     [ValidateInput(false), Themed]
@@ -34,21 +35,24 @@ namespace Orchard.Tags.Controllers {
             return View(model);
         }
 
-        public ActionResult Search(string tagName) {
+        public ActionResult Search(string tagName, Pager pager) {
             var tag = _tagService.GetTagByName(tagName);
 
             if (tag == null) {
                 return RedirectToAction("Index");
             }
 
-            var list = _shapeFactory.List();
+            var taggedItems = _tagService.GetTaggedContentItems(tag.Id, pager.GetStartIndex(), pager.PageSize)
-            foreach (var taggedContentItem in _tagService.GetTaggedContentItems(tag.Id)) {
+                .Select(item => _contentManager.BuildDisplay(item, "Summary"));
-                list.Add(_contentManager.BuildDisplay(taggedContentItem, "Summary"));
-            }
 
+            var list = _shapeFactory.List();
+            list.AddRange(taggedItems);
+
+            var totalItemCount = _tagService.GetTaggedContentItemCount(tag.Id);
             var viewModel = new TagsSearchViewModel {
                 TagName = tag.TagName,
-                List = list
+                List = list,
+                Pager = _shapeFactory.Pager(pager).TotalItemCount(totalItemCount)
             };
 
             return View(viewModel);

src/Orchard.Web/Modules/Orchard.Tags/Services/ITagService.cs

@@ -9,6 +9,10 @@ namespace Orchard.Tags.Services {
         TagRecord GetTagByName(string tagName);
         IEnumerable<IContent> GetTaggedContentItems(int tagId);
         IEnumerable<IContent> GetTaggedContentItems(int tagId, VersionOptions options);
+        IEnumerable<IContent> GetTaggedContentItems(int tagId, int skip, int count);
+        IEnumerable<IContent> GetTaggedContentItems(int tagId, int skip, int count, VersionOptions versionOptions);
+        int GetTaggedContentItemCount(int tagId);
+        int GetTaggedContentItemCount(int tagId, VersionOptions versionOptions);
 
         TagRecord CreateTag(string tagName);
 

src/Orchard.Web/Modules/Orchard.Tags/Services/TagService.cs

@@ -119,6 +119,27 @@ namespace Orchard.Tags.Services {
                 .Where(c => c != null);
         }
 
+        public IEnumerable<IContent> GetTaggedContentItems(int tagId, int skip, int take) {
+            return GetTaggedContentItems(tagId, skip, take, VersionOptions.Published);
+        }
+
+        public IEnumerable<IContent> GetTaggedContentItems(int tagId, int skip, int take, VersionOptions options) {
+            return _contentTagRepository
+                .Fetch(x => x.TagRecord.Id == tagId)
+                .Skip(skip)
+                .Take(take)
+                .Select(t => _orchardServices.ContentManager.Get(t.TagsPartRecord.Id, options))
+                .Where(c => c != null);
+        }
+
+        public int GetTaggedContentItemCount(int tagId) {
+            return GetTaggedContentItemCount(tagId, VersionOptions.Published);
+        }
+
+        public int GetTaggedContentItemCount(int tagId, VersionOptions options) {
+            return GetTaggedContentItems(tagId, options).Count();
+        }
+
         private void TagContentItem(TagsPartRecord tagsPartRecord, string tagName) {
             var tagRecord = GetTagByName(tagName);
             var tagsContentItems = new ContentTagRecord { TagsPartRecord = tagsPartRecord, TagRecord = tagRecord };

src/Orchard.Web/Modules/Orchard.Tags/ViewModels/TagsSearchViewModel.cs

@@ -2,5 +2,6 @@
     public class TagsSearchViewModel {
         public string TagName { get; set; }
         public dynamic List { get; set; }
+        public dynamic Pager { get; set; }
     }
 }

src/Orchard.Web/Modules/Orchard.Tags/Views/Home/Search.cshtml

@@ -1,11 +1,10 @@
 @model Orchard.Tags.ViewModels.TagsSearchViewModel
-
 @{ 
     Html.AddTitleParts(T("Tags").ToString()); 
     Html.AddTitleParts(T("Contents tagged with {0}", Model.TagName).ToString());
     Model.List.Classes.Add("tagged-posts");
     Model.List.Classes.Add("content-items");
 }
-
 <h1 class="page-title">@T("Contents tagged with <span>{0}</span>", Model.TagName)</h1>
 @Display(Model.List)
+@Display(Model.Pager)