public ActionResult Create(PostTagFormViewModel postTagVM)
{
try
{
foreach (int TagId in postTagVM.TagsSelected)
{
PostTag newPostTag = new PostTag
{
PostId = postTagVM.PostId,
TagId = TagId
};
_postTagRepository.AddPostTag(newPostTag);
}
return(RedirectToAction("Details", "Post", new { id = postTagVM.PostId }));
}
catch {
IEnumerable <Tag> tags = _tagRepository.GetAllTags();
List <int> tagsSelected = new List <int>();
PostTagFormViewModel vm = new PostTagFormViewModel()
{
PostTag = new PostTag(),
Tag = tags,
TagsSelected = tagsSelected,
PostId = postTagVM.PostId
};
return(View(vm));
}
}
public IActionResult AddTagToPost(PostTag postTag)
{
PostTag tagCheck = _postTagRepository.CheckIfExists(postTag);
if (tagCheck == null)
{
_postTagRepository.AddPostTag(postTag);
return(Ok());
}
return(Ok());
}
public IActionResult UpdatePostTags(List <int> tagIds, int postId)
{
_postTagRepository.DeletePostTag(postId);
foreach (int tagId in tagIds)
{
_postTagRepository.AddPostTag(tagId, postId);
}
return(NoContent());
}
// Post method takes in postId from route parameter and list of selected tag ids from client side
public IActionResult Post(int id, List <int> selectedTagIds)
{
// Getting all PostTags associated to post
var previouslySelectedTags = _postTagRepository.GetTagsByPostId(id);
var previouslySelectedTagIds = new List <int>();
// Extracting tag ids from previously selected PostTags
foreach (PostTag postTag in previouslySelectedTags)
{
previouslySelectedTagIds.Add(postTag.TagId);
}
// Execute when list of selected tag ids from client side is NOT empty
if (selectedTagIds != null)
{
// Iterating through new list of tag ids from client side
foreach (int tagId in selectedTagIds)
{
// Add new PostTag when new tag id is not found in list of previously selected tag ids, eliminates duplicates
if (!previouslySelectedTagIds.Contains(tagId))
{
_postTagRepository.AddPostTag(new PostTag()
{
PostId = id,
TagId = tagId
});
}
}
// Iterating through list of previously selected tag ids associated with post
foreach (int tagId in previouslySelectedTagIds)
{
// Removing PostTag when previous tag id is not found in new list of tag ids from client side
if (!selectedTagIds.Contains(tagId))
{
_postTagRepository.RemoveTagFromPost(tagId, id);
}
}
}
// Executing when new list of tag ids from client side is empty
else
{
// Iterating through list of previously selected tag ids associated with post, meaning user wants to remove all associated tags in client side
foreach (int tagId in previouslySelectedTagIds)
{
_postTagRepository.RemoveTagFromPost(tagId, id);
}
}
return(NoContent());
}
public IActionResult Post(PostTag postTag)
{
_postTagRepository.AddPostTag(postTag);
return(NoContent());
}
