// GET: Posts/Create
public ActionResult Create()
{
SecurityController.CheckAuth(this);
var post = new Post() { PostDate = DateTime.Today, Categories = new List<Category>() };
PopulateAssignedCategories(post);
return View(post);
}
public JsonPost(Post post)
{
PostDate = post.PostDate;
Heading = post.Heading;
Body = post.Body;
foreach (Category c in post.Categories)
{
_Categories.Add(c.Name);
}
}
private void UpdateAssignedCategories(string[] selectedCategories, Post postToUpdate)
{
if (selectedCategories == null)
{
postToUpdate.Categories = new List<Category>();
return;
}
var selectedCategoriesHS = new HashSet<string>(selectedCategories);
var postCategories = new HashSet<int>(postToUpdate.Categories.Select(c => c.ID));
foreach(var category in db.Categories)
{
if (selectedCategoriesHS.Contains(category.ID.ToString()))
{
if (!postCategories.Contains(category.ID))
{
postToUpdate.Categories.Add(category);
}
}
else
{
if (postCategories.Contains(category.ID))
{
postToUpdate.Categories.Remove(category);
}
}
}
}
private void PopulateHashTags(Post post)
{
var mHash = Regex.Matches(post.Body + " ", @"(#.*?)\W");
if (mHash.Count == 0)
{
post.HashTags = new List<HashTag>();
return;
}
var newTags = new HashSet<string>();
foreach (Match m in mHash)
newTags.Add(m.Groups[1].Value.ToLower());
HashSet<string> postTags;
if (post.HashTags == null)
{
postTags = new HashSet<string>();
post.HashTags = new List<HashTag>();
}
else
{
postTags = new HashSet<string>(post.HashTags.Select(h => h.Name.ToLower()));
}
if (newTags.SetEquals(postTags))
return;
foreach(string tag in postTags)
{
if (!newTags.Contains(tag))
{
post.HashTags.Remove(db.HashTags.Single(h => h.Name == tag));
}
}
foreach(string tag in newTags)
{
if (!postTags.Contains(tag))
{
var dbHash = db.HashTags.SingleOrDefault(h => h.Name == tag);
if (dbHash == null)
{
post.HashTags.Add(new HashTag() { Name = tag });
}
else
{
post.HashTags.Add(dbHash);
}
}
}
}
private void PopulateAssignedCategories(Post post)
{
var allCategories = db.Categories;
var postCategories = new HashSet<int>(post.Categories.Select(c => c.ID));
var viewModel = new List<AssignedCategoryData>();
foreach (var category in allCategories)
{
viewModel.Add(new AssignedCategoryData
{
ID = category.ID,
Name = category.Name,
Assigned = postCategories.Contains(category.ID)
});
}
ViewBag.Categories = viewModel;
}
public void Import(string json)
{
SecurityController.CheckAuth(this);
List<JsonPost> jPosts = JsonConvert.DeserializeObject<List<JsonPost>>(json);
foreach (JsonPost jPost in jPosts)
{
Post post = new Post { PostDate = jPost.PostDate, Heading = jPost.Heading, Body = jPost.Body };
if (jPost.Categories.Count() > 0)
{
post.Categories = new List<Category>();
foreach (var category in jPost.Categories)
{
Category categoryToAdd = db.Categories.Single(c => c.Name == category);
post.Categories.Add(categoryToAdd);
}
}
db.Posts.Add(post);
}
db.SaveChanges();
RedirectToAction("Index");
}