[Koha] Numeric subfield in framework

[Paul A]

On 2018-03-16 10:59 AM, Narcis Garcia wrote:
> Thanks; I didn't see tag 300.a

It's a standard bibliographic entry for cataloguing, used by all major 
libraries.

> Applying replacement.
> About JavaScript, let's see how can it be implemented consistently in Koha.
> 
> I'm really surprised Koha seems not having implemented data types
> (numeric, boolean, string, binary, date/time...).

Koha *does* implement data types, where required by cataloguing rules 
and conventions (and by internal db constraints.) Tag 300$a is *not* an 
integer by any stretch of anybody's imagination.

This list is here to help you. You might like to explain which version 
of Koha you are implementing, and which library you are working for. 
That would assist the Koha community in giving you the best possible advice.

You give the impression (y disculpame si estoy en error) that you have 
done very little MARC cataloguing. I might suggest that you look at 
records from Library of Congress, the British Library, Library Archives 
Canada, etc. particularly via Z39.50, or through the web interface to 
WorldCat (OCLC).  Koha is very good at "compliance" -- but does allow 
flexibility for you to go off on a tangent and "reinvent the wheel" if 
you have "non-industry / non-professional / specialized / amateur" 
requirements.

Amicalmente -- Paul


> 
> 
> 
> El 16/03/18 a les 15:31, Paul A ha escrit:
>> On 2018-03-16 06:00 AM, Narcis Garcia wrote:
>>> I'm editing subtags in a MARC21 framework, and trying to use 302.a for
>>> book's pages number.
>>> At Tag subfield structure -> Edit -> Other options; how can I set
>>> authorized value to be only a positive integer number?
>>
>> Javascript *might* allow you to limit to 'a positive integer', but why?
>>
>> First, tag 302 is obsolete (so LoC, if you accept them as properly
>> reflecting MARC21 status, do not supply suggestions.)
>>
>> Secondly, the number of pages in a bibliographic record are normally
>> recorded in 300$a - "Extent", described as "Number of physical pages,
>> volumes, cassettes, total playing time, etc., of of each type of unit."
>>
>> We often have entries such as:
>> 300 ##$axii, 352, [8 advert.] p.
>>
>> LoC <http://www.loc.gov/marc/bibliographic/bd300.html> give additional
>> examples such as:
>> 300 ##$a1 videocassette of 1 (Beta) (30 min.)
>>
>> which might answer your follow-up email.
>>
>> Best -- Paul
>>
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