public IQueryable <PostModel> GetByTagId([FromUri] int tagId, [FromUri] string sessionKey)
{
var user = this.userRepository
.GetAll().Where(usr => usr.SessionKey == sessionKey).FirstOrDefault();
if (user == null)
{
throw new InvalidOperationException("The user is not logged in");
}
var tag = this.tagRepository.GetById(tagId);
if (tag == null)
{
throw new InvalidOperationException("There is no tag with id=" + tagId);
}
var postModels = new List <PostModel>();
var postEntities = tag.Posts;
foreach (var postEntity in postEntities)
{
postModels.Add(PostModel.CreateFromPostEntity(postEntity));
}
return(postModels.OrderByDescending(p => p.PostDate).AsQueryable());
}
