Hi everyone,
I'm trying to make an #ask query, using intermediates results to do more
queries within.
I have this scenario:
I have several pages of a category A. Some of them are related to other
pages of category B, through a "has B" property. Then, my B pages are
related to pages of category C, through "has C" property, and finally my C
pages have an attribute "att1", through "has att1" property, wich has
defined a specific set of values.
I would like to make an "ask" query, asking for all my A pages, whose must
have at least one B page, which must have at least one C page, and which
must have the "att1 = SOME_VALUE", where some value should be a parameter.
I read about subqueries, doing something like:
{{#ask: [[Category::A]] [[has B::<q>[[Category::B]] [[has C::
<q>[[Category::C]] [[has att1::{{SOME_VALUE}}]]</q>]]
</q>]]
|?att1
}}
Is this the right way to do this? is there a more elegant way?
One other thing, I would like that if the user doesn't complete the
"SOME_VALUE" parameter, then return all the pages of category A. I tried
this with the "+" and "*" characters, but didnt work. How is the best way
to achieve this?
Thanks a lot in advance,
Marcelo.
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