[Koha] OAI datasets

[Steve Sowder]

It was obvious.
I did run build_oai_sets.pl

Bottom line:  a record cannot be in two oai sets that use the same 
indexed MARC tag.


i.e.
...
590  a  SET1
590  a  SET2
...

This record will be in the oai dataset SET1 but will not be in SET2.
Only the first occurrence of the 590a is used to create oai datasets.

Steve



On 8/25/2014 3:17 AM, Magnus Enger wrote:
> Sorry for the late reply!
>
> You did not mention running misc/migration_tools/build_oai_sets.pl. I
> guess there might be two reasons for that:
> - you don't know about it
> - it's so obvious you did not mention it
>
> My apologies if it is the latter. If it is the former, you might want
> to have a look at the documentation for that script:
> http://perldoc.koha-community.org/misc/migration_tools/build_oai_sets.html
>
> Best regards,
> Magnus
>
> On 30 July 2014 17:36, Steve Sowder <sowder at andrews.edu> wrote:
>> This is what I know.
>>
>> I have read again the info at
>> http://www.openarchives.org/OAI/openarchivesprotocol.html#Set
>>
>> It now makes more sense to me.
>>
>> OAI databases are created with the full records of the database.
>> In our case that is about 190,000 records.
>>
>> SetSpecs are subsets of the database (for "Selective Harvesting").
>>
>> Any record can be in zero or more SetSpecs.
>>
>> In Koha, when an OAI set is defined that new SetSpec will appear in the
>> ListSets.
>> (i.e. http://koha.andrews.edu/cgi-bin/koha/oai.pl?verb=ListSets)
>> without rerunning the program build_oai-set.pl.
>> At least, it appears after overnight.
>>
>> However, there are still no records (should be 70,000) in either of the
>> SetSpecs.
>> Which is what I don't understand.
>>
>> The mapping follows the instructions given in the documentation.
>>
>> So, questions:
>> Is mapping only available to certain MARC tags?
>> Indexed tags only?
>>
>> For those of you that have SetSpecs with records please send me examples of
>> your set mapping.
>>
>>
>> Thanks
>>
>>
>>
>> Steve
>> sowder at andrews.edu
>>
>>
>>
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>
>