async Task <List <int> > getTagIdFromNames(PostsDto postDto)
{
var tagNames = postDto.tagNames;
// get tag already
string sqlGetTag = $"Name IN ('{string.Join("','", tagNames)}')";
var alreadyTags = await _tagRepository.GetList(sqlGetTag);
var alreadyTagNames = alreadyTags.Select(t => t.Name).ToList();
// get new tag
var newTagsNames = tagNames.Except(alreadyTagNames).ToList();
var newTagIds = new List <int>();
if (newTagsNames.Count > 0)
{
var tagDtos = new List <TagsDto>();
foreach (var nt in newTagsNames)
{
tagDtos.Add(new TagsDto()
{
Name = nt
});
}
var inputTags = _mapper.Map <List <Tags> >(tagDtos);
var tagAdds = await _tagRepository.AddBulk(inputTags);
newTagIds = tagAdds.Split(",").Select(t => Convert.ToInt32(t)).ToList();
}
// join 2 list id tag
var alreadyTagIds = alreadyTags.Select(t => t.Id).ToList();
var result = alreadyTagIds.Concat(newTagIds).ToList();
return(result);
}
