CODEWITHSUNDEEP
.netnhibernatehql
justSteve
justSteve

Reputation: 5524

Error on hql Query object

The various objects are all valid and used elsewhere in the app:

public virtual Discount SelectDiscountByUser(User currentUser)
{
    Query q = new Query();
    q.Criteria.Add(new Criteria("User.ID", CriteriaOperator.Equal, currentUser.ID));

    User user = DataContext.Load<User>(q);
   ...
}

I'm getting 2 compiler errors on the '.Load(q)' line

Error 34 The best overloaded method match for 'myApp.DataAccess.IDataContext.Load(int)' has some invalid arguments ...Facade\UserFacade.cs 100 25 myApp.Business

Error 35 Argument 1: cannot convert from 'myApp.DataAccess.Query' to 'int' ...Facade\UserFacade.cs 100 48 myApp.Business

where the line from the interface looks like:

     public interface IDataContext
     {
         EntityType Load<EntityType>(int ID) where EntityType : class, new();
         ...

I can clear the error conditions by return a list:

IList<User> user = DataContext.LoadList<User>(q);

and i can work with that list (return user[0].SubscriptionDiscount;) but that doesn't seem right.

Upvotes: 0

Views: 112

Answers (2)

Diego Mijelshon
Diego Mijelshon

Reputation: 52735

Both Cole and binaryhowl explained the problem, but you are complicating things unnecessarily.

  • You already have a User instance, why do you need a new one?
  • You can use session.Load<EntityType>(ID) or session.Get<EntityType>(ID) depending on what you really want to accomplish. There's no need for a query when you already know the Id.

Upvotes: 0

Cole W
Cole W

Reputation: 15313

The interface method you have outlined above takes an integer and you are trying to pass it a Query object. Seems like a pretty cut and dry issue to me.

Upvotes: 1

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