Is it possible to manually via query decide how will be parameters combined?

[Cubody]

@enisn Heya! I was thinking about complex query. For example I want filter like a == 3 && (b ==4 || c == 2).
Is it possible to do such filter via query?

[enisn]

I had a markup goal that covers this situation but it's not implemented yet: #18
The following markup can be used to achieve your requirement.

[CompareTo("A")]
[And]
[CompareTo("B", "C", CombineWith = CombineType.Or)]

Unfortunately it's an unimplemented feature. So you can create your own attribute for your custom requirements or just you can write linq for your custom requirement.

You can follow this document to create custom attributes: https://enisn-projects.io/docs/en/AutoFilterer/latest/examples/Custom-Expression-for-Property

In your case following implementation will work:

  public class MyCustomSearchAttribute : FilteringOptionsBaseAttribute
  {
      public override Expression BuildExpression(Expression expressionBody, PropertyInfo targetProperty, PropertyInfo filterProperty, object value)
      {
          // Also means:  x => x.A == "someValue" && (x.B == "someValue" || x.C == "somveValue")
          return Expression.And(
                  Expression.Equal(
                      Expression.Property(expressionBody, "A"),
                      Expression.Constant(value)
                      ),
                  Expression.Or(
                      Expression.Equal(
                          Expression.Property(expressionBody, "B"),
                          Expression.Constant(value)
                          ),
                      Expression.Equal(
                          Expression.Property(expressionBody, "C"),
                          Expression.Constant(value)
                          )
                      )
              );
      }
  }

Then you can use that attribute in your Filter Object

public class MyFilter : FilterBase
{
    [MyCustomSearch]
    public int Filter { get; set; }
}

[enisn]

I see, I misunderstood your requirement. You mean, you'll pass even Or, And operator from query, right?

[Cubody]

I see, I misunderstood your requirement. You mean, you'll pass even Or, And operator from query, right?

Yes, I meant passing it from query.