CODEWITHSUNDEEP
xquery
Ranch Dubois
Ranch Dubois

Reputation: 55

How to include multiple function calls or assignments in an if-then statement

I am new to xquery and have a hard time finding more than just the basics online. I have existing code I want to change but I don't know how to include multiple function calls or variable assignments in a single if-then statement.

Say I have this block

if (fn:namespace-uri(.) = 'http://xmlns.oracle.com/communications/sce/dictionary/testNamespace' 
and //tns:CreateSalesOrder/tns:ListOfSWIOrderIO/tns:SWIOrder/tns:OrderTypeCode/text() = 'Test Order'
and $isDefaultVersion)
    then true()
else false()

How can I include a function call after true()?

Something like this but I dont know the exact syntax:

 if (fn:namespace-uri(.) = 'http://xmlns.oracle.com/communications/sce/dictionary/testNamespace' 
and //tns:CreateSalesOrder/tns:ListOfSWIOrderIO/tns:SWIOrder/tns:OrderTypeCode/text() = 'Test Order'
and $isDefaultVersion)
    then true(), util:write-record('123','johndoe')
else false()

Upvotes: 0

Views: 142

Answers (1)

Michael Kay
Michael Kay

Reputation: 163458

You can write:

if (...) then (true(), util:write-record('123','johndoe')) else ...

Note the parentheses.

I suspect from the name that util:write-record() is a function that has side-effects. Functions with side-effects are very tricky in XQuery and you need to understand how they are handled by your particular implementation. There is always a risk that the query optimizer will change the order of evaluation so side-effects happen in an unexpected order, or that particular calls will not happen at all because the optimizer decides the result is not needed.

Upvotes: 1

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