[ckan-dev] Resource.hash

[Toby Dacre]

On 29 May 2013 15:55, John Glover <john.glover at okfn.org> wrote:
> Hi Toby,
>
> 1) If you want to check an external resource regularly to see if it has
> changed, how would you do that? Currently we store the hash in that field
> and then update it when necessary. It could also be used by people that want
> to verify that they have downloaded the correct file.

Ahh so it is the hash of the external resource - that was completely
unclear to me

>
> 2) Are you referring to when the external resource is changed or when the
> CKAN resource is changed?
>
> 3) It's not ideal, but I'm not sure how else you are proposing to handle
> this. It should not be editable through the WUI though.
>
> 4) Not without breaking things.
>
> John
>
>
> On 29 May 2013 13:52, Toby Dacre <toby.okfn at gmail.com> wrote:
>>
>> Resources have a hash field.
>>
>> This is used by the datastorer to see if a resource has changed I am
>> not sure why last modified is not used here.
>>
>> We have a failing test that seems to be related to this
>> https://github.com/okfn/ckan/issues/818 as the results are ordered by
>> hash which I think may be ''
>>
>> So my questions are.
>>
>> 1) why do we have this field/ what is the usecase ?
>>
>> 2) If it should change when the resource is updated - should this not
>> be moved into the model so it is always done?
>>
>> 3) should it be even changable by a user?
>>
>> 4) Can we just kill it?
>>
>>
>> --
>> Toby Dacre
>>
>> The Open Knowledge Foundation
>>
>> Empowering through Open Knowledge
>> http://okfn.org/  |  @okfn
>>
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>
>
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-- 
Toby Dacre

The Open Knowledge Foundation

Empowering through Open Knowledge
http://okfn.org/  |  @okfn