But what about the type list:reference?
On Wednesday, 8 July 2015 16:16:52 UTC+1, Niphlod wrote:
>
> from the book
>
> IS_IN_SET and Tagging
>
> The IS_IN_SET validator has an optional attribute multiple=False. If set
> to True, multiple values can be stored in one field. The field should be of
> type list:integer or list:string. multiple references are handled
> automatically in create and update forms, but they are transparent to the
> DAL. We strongly suggest using the jQuery multiselect plugin to render
> multiple fields.
>
> Note that when multiple=True, IS_IN_SET will accept zero or more values,
> i.e. it will accept the field when nothing has been selected. multiplecan
> also be a tuple of the form (a,b) where a and b are the minimum and
> (exclusive) maximum number of items that can be selected respectively.
>
>
> On Wednesday, July 8, 2015 at 4:36:29 PM UTC+2, Francisco Costa wrote:
>>
>> Hi,
>>
>> Is there any validator for a List size?
>>
>> db.define_table(
>> 'categories',
>> Field('id', required=True, unique=True),
>> Field('name', 'string', length=128, required=True),
>> )
>>
>> db.define_table(
>> 'sub_categories',
>> Field('id', required=True, unique=True),
>> Field('name', 'string', length=128, required=True),
>> Field('main_categories', 'list:reference categories', required=True),
>> )
>>
>> Is it possible to limit the minsize and/or maxsize of main_categories?
>>
>>
>>
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