Yes, I meant what you said Burke.

(Hopefully that was my only typo.)

-Darius (by phone)
On Apr 17, 2012 6:48 PM, "Burke Mamlin" <[email protected]> wrote:

> Darius,
>
> Did you mean to two posts, one to patient & the other to person?  Both of
> yours were to the same resource.
>
> This implies that if you want to modify a patient's gender *and* identifiers,
>> you have to do *two* POSTs.
>> For example:
>> POST patient/abcd1234 { identifiers: [ ... ] }
>> POST *person*/abcd1234 { gender: 'M' }
>
>
> Cheers,
>
> -Burke
>
> On Tue, Apr 17, 2012 at 8:01 PM, Darius Jazayeri <[email protected]>wrote:
>
>> Hi All,
>>
>> On tomorrow's design call one topic we will discuss is how to properly
>> represent inheritance and subclasses in a RESTful way. Fun and exciting
>> background discussion can be found on the ticket:
>> https://tickets.openmrs.org/browse/RESTWS-221. Call-in details are 
>> here<https://tickets.openmrs.org/browse/RESTWS-221>
>> .
>>
>> My proposal, generally supported by Saptarshi, and disliked by Roger, is
>> that we represent a subclass as basically the composition of a superclass
>> resource, and a subclass resource contains subclass-specific properties,
>> and a pointer to the superclass.
>>
>> For example: GET patient/abcd1234 ->
>> {
>>     identifiers: [ ... ], // this is the only Patient-specific property
>>     links: [
>>         { rel: "self", uri: "patient/abcd1234" }
>>     ],
>>     person: { // this is a pointer to the superclass
>>         names: [ ... ],
>>         gender: 'M',
>>         // other properties on the Person superclass follow
>>         links: [
>>             { rel: "self", uri: "person/abcd1234" }
>>         ]
>>     }
>> }
>>
>> This implies that if you want to modify a patient's gender *and* identifiers,
>> you have to do *two* POSTs.
>> For example:
>> POST patient/abcd1234 { identifiers: [ ... ] }
>> POST patient/abcd1234 { gender: 'M' }
>>
>> You should be able to *create* a patient in a single POST, but not
>> update one that way.
>>
>> At first this seems inconvenient, and unintuitive for someone who's used
>> to the OpenMRS Java API. The reason for this is that I think it's necessary
>> to support web-standard caching, which allows web service scalability.
>> Basically, imagine that someone may be running a reverse-proxy on their
>> server, which caches resources generated by the server and serves them up
>> to many web clients, relieving server load. In order for that reverse-proxy
>> cache to avoid serving up stale data, we cannot allow doing POST
>> patient/abc123 to modify the resource at person/abc123. (According to web
>> standards, if the cache sees a POST to patient/abc123, this invalidates
>> that specific cache entry, but all of this is invisible to the
>> server.) Thus my proposal.
>>
>> I'm only moderately certain I'm approaching this right, so if you know or
>> suspect the right answer to this problem (especially if it's different from
>> my proposal), please reply and/or join us on the design call tomorrow!
>>
>> -Darius
>>
>> PS- The other topic we'll discuss on the call is Wyclif's proposal for a
>> module, that will allow us to reboot our implementation of orders and order
>> entry, such that we implement something better, and it runs on both old and
>> new versions of OpenMRS. All in all this will be an action-packed call.
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