public ActionResult PostingPost(string postContents)
{
// Empty postContetns
if (postContents.IsNullOrWhiteSpace())
{
return(RedirectToAction("WallPost"));
}
// Create new object of Post - new Post
var newPost = new Post
{
PostContent = postContents,
PostDateTime = DateTime.Now,
ApplicationUser = _repo.GetUser(User.Identity.Name),
Tags = new List <Tag>()
};
newPost.ApplicationUser.UserName = User.Identity.Name;
// Regex- every word after "#"
var regex = new Regex(@"#\w+");
// Regex matches in postContents
var matches = regex.Matches(postContents);
// Found every tag in database
var existTag = _repo.GetTag();
// Every match in postContents
foreach (Match m in matches)
{
if (existTag.Contains(m.Value))
{
var value = m.Value;
var tagInPost = _repo.GetSingleTag(value);
// Add tag to post
newPost.Tags.Add(tagInPost);
}
else
{
// Create new tag in database
var newTag = new Tag()
{
TagName = m.Value
};
_repo.AddNewTag(newTag);
// Add tag to post
newPost.Tags.Add(newTag);
}
}
// Add new Post to database
_repo.AddNewPost(newPost);
// Save changes in database
try
{
_repo.SaveChanges();
}
catch (DbEntityValidationException ex)
{
foreach (var entityValidationErrors in ex.EntityValidationErrors)
{
foreach (var validationError in entityValidationErrors.ValidationErrors)
{
Response.Write("Property: " + validationError.PropertyName + " Error: " + validationError.ErrorMessage);
}
}
}
// Return to wall with post
return(RedirectToAction("WallPost"));
}