PostController.cs | programmers.stackexchange.com/posts/284164/edit | How do you handle saving blog tags in MVC?

gistfile1.txt

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.Entity;
using System.Linq;
using System.Net;
using System.Web;
using System.Web.Mvc;
using BlogEngine.Models;
using BlogEngine.Database.Repositories;
using BlogEngine.Database;

namespace BlogEngine.Areas.Admin.Controllers
{
    public class PostsController : Controller
    {
        private ApplicationDbContext db = new ApplicationDbContext();

        // GET: Admin/Posts
        public ActionResult Index()
        {
            return View(db.Posts.ToList());
        }

        // GET: Admin/Posts/Details/5
        public ActionResult Details(int? id)
        {
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            Post post = db.Posts.Find(id);
            if (post == null)
            {
                return HttpNotFound();
            }
            return View(post);
        }

        public ActionResult Create()
        {
            return View();
        }

        // POST: Posts/Create
        // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
        // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
        [HttpPost]
        [ValidateAntiForgeryToken]
        [ValidateInput(false)]
        public ActionResult Create([Bind(Include = "Id,Title,URL,IntroText,Body,Created,Modified,Author,Tags")] Post post)
        {
            if (true) /*ModelState.IsValid*/
            {
                var replace = post.Body;
                replace = replace.Replace("<p><img src=\"../", "<div class=\"center-img\"><img class=\"img-responsive\" src=\"/");
                replace = replace.Replace("/></p>", "/></div>");

                using (UnitOfWork uwork = new UnitOfWork())
                {
                    var newPost = new Post
                    {
                        Title = post.Title,
                        URL = post.URL,
                        IntroText = post.IntroText,
                        Body = replace,
                        Author = post.Author,
                        
                    };

                    // this is where i left off; I am not sure if I should be handling
                    // this in the controller or in the view... I would think the controller
                    // would be the place to do it. Maybe I should pass a string back from the 
                    // view???

                    // this is wrong, it ends up saving System.Collections.Generic.List`1[BlogEngine.Models.Tag] to SQL Server
                    IList<Tag> postTags = new List<Tag>();
                    var s = post.Tags.ToString();
                    string[] newTags = s.Split(',');
                    
 
                    foreach (var val in newTags)
                    {
                        Tag iTag = new Tag
                        {
                            Name = val
                        };
                        uwork.TagRepository.Insert(iTag);
                        postTags.Add(iTag);
                    }

                    newPost.Tags = postTags;
                    
                    uwork.PostRepository.Insert(newPost);
                    uwork.Commit();
                    return RedirectToAction("Index", "Dashboard");
                }
            }

            return View(post);
        }

        // GET: Admin/Posts/Edit/5

        public ActionResult Edit(int? id)
        {
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            Post post = db.Posts.Find(id);
            if (post == null)
            {
                return HttpNotFound();
            }
            return View(post);
        }

        // POST: Admin/Posts/Edit/5
        // To protect from overposting attacks, please enable the specific properties you want to bind to, for 
        // more details see http://go.microsoft.com/fwlink/?LinkId=317598.
        [HttpPost]
        [ValidateAntiForgeryToken]
        public ActionResult Edit([Bind(Include = "Id,Title,URL,IntroText,Body,Created,Modified,Author")] Post post)
        {
            if (ModelState.IsValid)
            {
                db.Entry(post).State = EntityState.Modified;
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            return View(post);
        }

        // GET: Admin/Posts/Delete/5
        public ActionResult Delete(int? id)
        {
            if (id == null)
            {
                return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
            }
            Post post = db.Posts.Find(id);
            if (post == null)
            {
                return HttpNotFound();
            }
            return View(post);
        }

        // POST: Admin/Posts/Delete/5
        [HttpPost, ActionName("Delete")]
        [ValidateAntiForgeryToken]
        public ActionResult DeleteConfirmed(int id)
        {
            Post post = db.Posts.Find(id);
            db.Posts.Remove(post);
            db.SaveChanges();
            return RedirectToAction("Index");
        }

        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                db.Dispose();
            }
            base.Dispose(disposing);
        }
    }
}