public override Expression ApplyPolicy(Expression expression, MemberInfo member)
{
if (this.policy.operations.TryGetValue(member, out List <LambdaExpression> ops))
{
var result = expression;
foreach (var fnOp in ops)
{
var pop = ExpressionEvaluator.Eval(fnOp, this.Translator.Mapper.Mapping.CanBeEvaluatedLocally);
result = this.Translator.Mapper.ApplyMapping(Expression.Invoke(pop, result));
}
var projection = result as DbProjectionExpression;
if (projection.Type != expression.Type)
{
var fnAgg = DbAggregator.GetAggregator(expression.Type, projection.Type);
projection = new DbProjectionExpression(projection.Select, projection.Projector, fnAgg);
}
return(projection);
}
return(expression);
}
