On 01/28/15 10:44, zhmt via Digitalmars-d-learn wrote:
> I have a struct created by thrift:
>
> struct Card {
> long id;
> string pwd;
> long agentId;
> bool valid;
> long rmb;
> long createDate;
> long soldDate;
> long chargeDate;
>
> mixin TStructHelpers!([
> TFieldMeta(`id`, 1, TReq.OPTIONAL),
> TFieldMeta(`pwd`, 2, TReq.OPTIONAL),
> TFieldMeta(`agentId`, 3, TReq.OPTIONAL),
> TFieldMeta(`valid`, 4, TReq.OPTIONAL),
> TFieldMeta(`rmb`, 5, TReq.OPTIONAL),
> TFieldMeta(`createDate`, 6, TReq.OPTIONAL),
> TFieldMeta(`soldDate`, 7, TReq.OPTIONAL),
> TFieldMeta(`chargeDate`, 8, TReq.OPTIONAL)
> ]);
> }
>
> and another class created for hibernated:
>
> class Card
> {
> import hibernated.core;
>
> @Id
> @Generated
> long id;
> @UniqueKey
> string pwd;
> //index
> long agentId;
> bool valid;
> long rmb;
> long createDate;
> long soldDate;
> long chargeDate;
> }
>
>
> Sometime , I need to copy them:
>
> thrift.Card tc;
> ....
> db.Card dc;
>
> dc.id = tc.id;
> dc.pwd = tc.pwd;
> ...
>
>
> It is boring coding, I want a solution to copy them automatically:
You could just add a method to the db class:
void fields(B)(auto ref B b) @property {
foreach (I, _; typeof(this.tupleof))
this.tupleof[I] = mixin(`b.`~__traits(identifier, this.tupleof[I]));
}
then
dc.fields = tc;
will work.
artur
