use ask as a parameter in semantic media wiki

Question

How can I pass an ask as a parameter of a query?

For example:

myvar={#ask: [[Category:City]][[London]]
|?population
|?currency
|}

Then use the data again in a custom function:

{#ask: [[England]]
|?population
|?currency
|capital=myvar
|}

If I try using something like the code below, when I debug the application, capital is equal to an empty String ( it's declared but empty ):

{#ask: [[England]]
|?population
|?currency
|capital={#ask: [[Category:City]][[London]]
         |?population
         |?currency
         |}
|}

Answer 1

Your syntax is not correct.

It should be like this:

{{#ask: [[Category:City]] [[located in::England]] 
| ?population 
| ?currency 
}}

You can have more informations about inline queries at the Semantic MediaWiki website.

And you can see how build nested queries at this question: Semantic mediawiki #ask query: Displaying nested properties on the same query

Hope that help you. Thanks!