I am working on logic that will populate my SWP content based on some
calculations that must take place locally. What I really need is a local
variable that I can update the value of based on its previous value and the
current set of values coming in through the result set. I tried using 'var
foo = ...;' but didn't know how to reference 'foo' inside the '{= ...}
expression. The '?foo' didn't work.
Is there a way to do this? At first I thought I might be able to achieve
this by writing a SPIN rule but even though I can implement that
calculation associated with the variable I cannot update the variable
itself.
For example, lets say I have a ui:foreach as follows:
<ui:forEach ui:indexVar="index" ui:resultSet="{= ?entries }">{= spin:nl() }
\\
{= ui:newline() }var curry = {= eddl:boxStartYPosition(?index, curry,
eddl:bcydist(?range)) };\draw (12,{= ?curry }) ...}
{= ui:newline() }</ui:forEach>
where ?range is defined within the SPARQL response in ?entries and ?curry
was originally defined at the outer ui:group using 'let'.
Any ideas/pointers would certainly be appreciated!!! Thanks.
Jack
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