如何将HQL内部联接转换为LINQ联接

Question

How can I write this HQL in Linq:

select a from A a
join a.childrenList b
where b = 1

childrenList is a list of enums which is not mapped to database by type but rather is saved with its integer value.

This HQL works fine but I want to write it in Linq. I cannot write something that can be compiled.

Answer 1

I think you can do

var results = 
    from a in db.Query<A>() 
    where a.childrenList.Any(b => b == (B)1)
    select a;

or, using chained methods:

var results = db.Query<A>().Where(a => a.childrenList.Any(b => b == (B)1));

Regarding our comments above, I think you can drop the from A a in ... select a statements, because they are redundant.