public void Insert(LikeBindingModel model)
{
using (var context = new ForumDatabase())
{
context.Like.Add(CreateModel(model, new Like()));
context.SaveChanges();
}
}
public List <LikeViewModel> GetFilteredListLikes(LikeBindingModel model)
{
using (var context = new ForumDatabase())
{
return(context.Like.Where(rec => rec.Messageid == model.IdMessage).Select(rec => new LikeViewModel
{
LoginUser = rec.Visitorlogin,
IdMessage = rec.Messageid
}).ToList());
}
}
public void Delete(LikeBindingModel model)
{
var element = likeStorage.GetElement(new LikeBindingModel {
LoginUser = model.LoginUser,
IdMessage = model.IdMessage
});
if (element == null)
{
throw new Exception("Элемент не найден");
}
likeStorage.Delete(model);
}
public void Update(LikeBindingModel model)
{
using (var context = new ForumDatabase())
{
var element = context.Like.FirstOrDefault(rec => rec.Visitorlogin == model.LoginUser && rec.Messageid == model.IdMessage);
if (element == null)
{
throw new Exception("Элемент не найден");
}
CreateModel(model, element);
context.SaveChanges();
}
}
public void CreateOrUpdate(LikeBindingModel model)
{
var element = likeStorage.GetElement(new LikeBindingModel
{
LoginUser = model.LoginUser,
IdMessage = model.IdMessage
});
if (element != null)
{
throw new Exception("Такой лайк поставлен");
}
likeStorage.Insert(model);
}
public List <LikeViewModel> Read(LikeBindingModel model)
{
if (model == null)
{
return(likeStorage.GetFullList());
}
if (model.LoginUser != null)
{
return(new List <LikeViewModel> {
likeStorage.GetElement(model)
});
}
return(likeStorage.GetFilteredList(model));
}
public LikeViewModel GetElement(LikeBindingModel model)
{
if (model == null)
{
return(null);
}
using (var context = new ForumDatabase())
{
var like = context.Like.FirstOrDefault
(rec => rec.Visitorlogin == model.LoginUser && rec.Messageid == model.IdMessage);
return(like != null ? new LikeViewModel
{
LoginUser = like.Visitorlogin,
IdMessage = like.Messageid
} :
null);
}
}
private Like CreateModel(LikeBindingModel model, Like like)
{
like.Visitorlogin = model.LoginUser;
like.Messageid = model.IdMessage;
return(like);
}
