Thanks Jeremy,

The code example was to illustrate the separation rather than being a sane
way of using said library.  I wrote it down very quickly before a meeting :)

I'm going to play with it a little more, I'll try to remember to post
something back if it isn't too embarrassing.


Cheers,
Nick

On Mon, Aug 21, 2017 at 3:48 PM Jeremy Evans <[email protected]> wrote:

> On Sunday, August 20, 2017 at 7:29:49 PM UTC-7, Nick wrote:
>>
>> I really like sequel, and I really like dry-types, and I'm not a big fan
>> of the active model pattern - has any one tried to write some integration
>> code to provide some persistence style glue between sequel and dry-types?
>> A quick google search turned up nothing...
>>
>> I'm wanting to be able to do something like:
>>
>> persistence = Sequel::DryTypes.new(cnx)
>> type = My::Type.new(:foo => 'bar')
>> persistence.save(type)
>> new_type = persistence.fetch(type.id)
>>
>> Anyone got any clues, tips or advice? :)
>>
>
> No experience here.  I will say that this code example looks a little
> odd.  I understand the advantages (and disadvantages) of separating
> persistence from modeling, but having the persistence code mutate the
> object passed in (to set the id) seems to go against the separation.  After
> all, if the persistence layer would mutate the object, why would it mutate
> just the id and not the entire object?
>
> The separation between persistence and modeling makes more sense if you
> are doing:
>
>   saved_type = persistence.save(type)
>   new_type = persistence_fetch(saved_type.id)
>
> Or even better:
>
>   new_type = persistence.save_and_fetch(type)
>
> assuming that save_and_fetch would apply the same optimization that
> Sequel::Model#save would do in regards to using INSERT ... RETURNING (or
> the equivalent for the database).
>
> Thanks,
> Jeremy
>
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