public void AddTags(string[] tags)
{
_tagsRepository.AddTags(tags);
}
public async Task <IActionResult> Edit([Bind("Title,Content,Tags,User,Id,PopularTags")] QuestionViewModel q, string submit)
{
if (submit == "Delete")
{
await questionsRepository.DeleteQuestion(q.Id);
return(RedirectToAction("Index"));
}
else
{
var question = await questionsRepository.getQuestion(q.Id);
if (ModelState.IsValid)
{
question.Content = q.Content;
question.Title = q.Title;
var oldTags = question.Tags;
await questionsRepository.UpdateQuestion(question);
if (q.Tags != null)
{
q.Tags = q.Tags + ",";
string[] listOfTags = (q.Tags).Split(",");
var listOfOldTags = oldTags.Select(x => x.Tag.TagContent).ToList <String>();
var newTags = listOfTags.Except(listOfOldTags).ToArray <String>();
var changedTags = listOfOldTags.Except(listOfTags).ToArray <String>();
for (int i = 0; i < newTags.Length - 1; i++)
{
Tag t = new Tag();
t.TagContent = newTags[i];
t.NumOfUses = 1;
await tagsRepository.AddTags(t);
var addedTag = await tagsRepository.GetTagByName(newTags[i]);
TagPost tp = new TagPost();
tp.QuestionId = question.Id;
tp.TagId = addedTag.Id;
await tagPostRepository.AddTagPost(tp);
}
for (int i = 0; i < changedTags.Length; i++)
{
Tag t = await tagsRepository.GetTagByName(changedTags[i]);
await tagPostRepository.DeleteTagFromQuestion(t, q.Id);
await tagsRepository.DeleteTags(t);
}
}
else
{
await tagPostRepository.DeleteAllTagsFromQuestion(q.Id);
}
return(RedirectToAction("Details", new { question.Id }));
}
q.PopularTags = await tagsRepository.GetPopular();
}
return(View(q));
}
