/// <summary>
/// Converts the query expression.
/// </summary>
/// <returns>The query expression.</returns>
protected override QueryExpression ConvertQueryExpression()
{
//QueryExpression expression;
//if ((predicate == QueryPredicate.Eq || predicate == QueryPredicate.NotEq) && Object.Equals (rightField, null)) {
// expression = new NullQueryExpression (leftField, predicate == QueryPredicate.Eq);
//}
//else {
// expression = new DataFieldQueryExpression (leftField, predicate, rightField, false);
//}
QueryExpression expression = new LightBinaryQueryExpression(leftField.TableMapping, QueryPredicate.Eq, leftField, rightField);
return(expression);
}
public object ToProperty(DataContext context, object source, bool exceptOwner)
{
InitialRelateMapping();
QueryExpression expression = null;
for (var i = 0; i < masterFieldMappings.Length; i++)
{
var info = relateInfos[i];
var field = masterFieldMappings[i];
QueryExpression keyExpression = new LightBinaryQueryExpression(relateEntityMapping, QueryPredicate.Eq, info, field.Handler.Get(source));
expression = QueryExpression.And(expression, keyExpression);
}
object target = null;
if (defaultConstructorInfo != null)
{
object[] args = { context, source, expression, exceptOwner ? fieldPaths : null };
target = defaultConstructorInfo.Invoke(args);
}
return(target);
}
