Add a UI page control ... gonna leave this hear and get feedback.

Author: poppastring

source/DasBlog.Web.Core/Common/Constants.cs

@@ -22,6 +22,9 @@ public static class Constants
 		public const string PostCount = "post-count";
 		public const string ArchivePageTitle = "Archive";
 		public const string ArchiveAllPageTitle = "Complete Archive";
+		public const string CommentShowPageControl = "comment-show-page-control";
+		public const string CommentPageNumber = "comment-page-number";
+		public const string CommentPostCount = "comment-post-count";
 
 		//
 		public const string TinyMceEditor = "tinymce";

source/DasBlog.Web.UI/Controllers/AdminController.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using AutoMapper;
+using DasBlog.Core.Common;
 using DasBlog.Managers.Interfaces;
 using DasBlog.Services;
 using DasBlog.Services.ActivityLogs;
@@ -96,17 +97,21 @@ public IActionResult ManageComments(string postid)
 			if (postid != null)
 			{
 				comments = blogManager.GetComments(postid, true).Select(comment => mapper.Map<CommentAdminViewModel>(comment)).ToList();
+				ViewData[Constants.CommentShowPageControl] = false;
 			}
 			else
 			{
 				comments = blogManager.GetCommentsFrontPage().Select(comment => mapper.Map<CommentAdminViewModel>(comment)).ToList();
+				ViewData[Constants.CommentShowPageControl] = true;
 			}
 
 			foreach (var cmt in comments)
 			{
 				cmt.Title = blogManager.GetBlogPostByGuid(new Guid(cmt.BlogPostId))?.Title;
 			}
 
+			ViewData[Constants.CommentPageNumber] = 0;
+			ViewData[Constants.CommentPostCount] = 5;
 			return View(comments.OrderByDescending(d => d.Date).ToList());
 		}
 
@@ -131,6 +136,10 @@ public IActionResult ManageCommentsByPage(int page)
 				cmt.Title = blogManager.GetBlogPostByGuid(new Guid(cmt.BlogPostId))?.Title;
 			}
 
+			ViewData[Constants.CommentShowPageControl] = true;
+			ViewData[Constants.CommentPostCount] = 5;
+			ViewData[Constants.CommentPageNumber] = page;
+
 			return View("ManageComments", comments.OrderByDescending(d => d.Date).ToList());
 		}
 

source/DasBlog.Web.UI/TagHelpers/Comments/CommentPageControlTagHelper.cs

@@ -0,0 +1,72 @@
+using System;
+using System.Threading.Tasks;
+using DasBlog.Core.Common;
+using DasBlog.Services;
+using Microsoft.AspNetCore.Mvc.Rendering;
+using Microsoft.AspNetCore.Mvc.ViewFeatures;
+using Microsoft.AspNetCore.Razor.TagHelpers;
+
+namespace DasBlog.Web.TagHelpers.Comments
+{
+	public class CommentPageControlTagHelper : TagHelper
+	{
+		public string NewerPostsText { get; set; } = "Newer Comments >>";
+
+		public string OlderPostsText { get; set; } = "<< Older Comments";
+
+		public bool SeperatorRequired { get; set; } = true;
+
+		private int PostCount { get; set; }
+		private int PageNumber { get; set; }
+		private const string PAGEANCHOR = "<span class='dbc-span-page-control-{2}'><a href='{0}'>{1}</a></span>";
+
+		[ViewContext]
+		public ViewContext ViewContext { get; set; }
+
+		private IDasBlogSettings dasBlogSettings;
+
+		public CommentPageControlTagHelper(IDasBlogSettings dasBlogSettings)
+		{
+			this.dasBlogSettings = dasBlogSettings;
+		}
+
+		public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
+		{
+			PostCount = (int?)ViewContext.ViewData[Constants.CommentPostCount] ?? 0;
+			PageNumber = (int?)ViewContext.ViewData[Constants.CommentPageNumber] ?? 0;
+
+			var pagecontrol = string.Empty;
+
+			output.TagName = "span";
+			output.TagMode = TagMode.StartTagAndEndTag;
+			output.Attributes.SetAttribute("class", "dbc-span-comment-page-control");
+
+			var content = await output.GetChildContentAsync();
+			var seperator = " | ";
+			
+			if(!string.IsNullOrEmpty(content.GetContent()))
+			{
+				seperator = content.GetContent();
+			}
+
+			var separatorRequired = PostCount > 0 && PageNumber > 0;
+
+			if (PostCount > 0)
+			{
+				pagecontrol = string.Format(PAGEANCHOR, dasBlogSettings.RelativeToRoot(string.Format("admin/manage-comments/page/{0}", PageNumber + 1)), OlderPostsText, "older");
+			}
+			
+			if (separatorRequired)
+			{
+				pagecontrol += seperator;
+			}
+
+			if (PageNumber > 0)
+			{
+				pagecontrol += string.Format(PAGEANCHOR, dasBlogSettings.RelativeToRoot(string.Format("admin/manage-comments/page/{0}", PageNumber - 1)), NewerPostsText, "newer");
+			}
+
+			output.Content.SetHtmlContent(pagecontrol);
+		}
+	}
+}

source/DasBlog.Web.UI/Views/Admin/ManageComments.cshtml

@@ -14,6 +14,7 @@
 
 <div class="container">
     <div>
+        <comment-page-control view-context="@ViewContext" />
         <table class="table">
             <thead>
                 <tr>