paginate forum posts

2 files changed, 45 insertions, 3 deletions

diff --git a/Project-Unite/Controllers/ForumController.cs b/Project-Unite/Controllers/ForumController.cs
index b65ed3e..5b36f20 100644
--- a/Project-Unite/Controllers/ForumController.cs
+++ b/Project-Unite/Controllers/ForumController.cs
@@ -318,9 +318,13 @@ namespace Project_Unite.Controllers
             return RedirectToAction("ViewUnread");
         }
 
+
+
         [Authorize]
-        public ActionResult ViewTopic(string id, bool triedtolikeowntopic = false)
+        public ActionResult ViewTopic(string id, bool triedtolikeowntopic = false, int page = 1)
         {
+            int realpage = page - 1;
+            int pageSize = 10;
             if (triedtolikeowntopic)
                 ViewBag.Error = "You cannot like or dislike your own topic!";
             var db = new ApplicationDbContext();
@@ -329,8 +333,31 @@ namespace Project_Unite.Controllers
                 return new HttpStatusCodeResult(404);
             if (!ACL.CanSee(User.Identity.Name, topic.Parent))
                 return new HttpStatusCodeResult(403);
+            int pages = topic.Posts.GetPageCount(pageSize);
 
+            ViewBag.Page = realpage;
+            ViewBag.PageCount = pages;
+            ViewBag.PageSize = pageSize;
             return View(topic);
         }
     }
+
+    public static class PaginationExtensions
+    {
+        public static int GetPageCount<T>(this IEnumerable<T> collection, int pageSize)
+        {
+            return (collection.Count() + pageSize - 1) / pageSize;
+        }
+
+        public static IEnumerable<T> GetItemsOnPage<T>(this IEnumerable<T> collection, int page, int pageSize)
+        {
+            var lst = collection.ToList();
+
+            for(int i = pageSize * page; i < pageSize + (pageSize * page) && i < lst.Count(); i++)
+            {
+                yield return lst[i];
+            }
+
+        }
+    }
 }
\ No newline at end of file
diff --git a/Project-Unite/Views/Forum/ViewTopic.cshtml b/Project-Unite/Views/Forum/ViewTopic.cshtml
index a9272b6..704566f 100644
--- a/Project-Unite/Views/Forum/ViewTopic.cshtml
+++ b/Project-Unite/Views/Forum/ViewTopic.cshtml
@@ -1,4 +1,5 @@
-@model Project_Unite.Models.ForumTopic
+@using Project_Unite.Controllers;
+@model Project_Unite.Models.ForumTopic
 @using Microsoft.AspNet.Identity
 @{
     ViewBag.Title = Model.Subject;
@@ -30,7 +31,7 @@
     Html.RenderPartial("~/Views/Shared/_ModeratorBar.cshtml", Model);
 }
 
-@foreach (var post in Model.Posts.OrderBy(x => x.PostedAt))
+@foreach (var post in Model.Posts.OrderBy(x => x.PostedAt).GetItemsOnPage(ViewBag.Page, ViewBag.PageSize))
 {
     if (Request.IsAuthenticated)
     {
@@ -75,3 +76,17 @@
 @{
     Html.RenderPartial("~/Views/Shared/_ModeratorBar.cshtml", Model);
 }
+
+<ul class="pagination">
+    @for(int i = 1; i <= ViewBag.PageCount; i++)
+    {
+        if (i == ViewBag.Page - 1)
+        {
+            <li class="active">@Html.ActionLink(i.ToString(), "ViewTopic", "Forum", null, new { id = Model.Discriminator, page = i })</li>
+        }
+        else
+        {
+            <li>@Html.ActionLink(i.ToString(), "ViewTopic", "Forum", null, new { id = Model.Discriminator, page = i })</li>
+        }
+    }
+</ul>
\ No newline at end of file