I am trying to construct a Web API that queries a data entity and compares a fie

judym598

Certified Senior Developer

over 8 years ago

I am trying to construct a Web API that queries a data entity and compares a field in that data entity with an array of values that I've stored in a local variable (created from another a!queryEntity). I've hardcoded the value in my first query so I know what results I should get in the second one. Both queries work individually, but I get this expression evaluation error when I combine them. Any suggestions on what I'm missing? I'm pretty sure that once I get this working, I'll also have to add something to account for null values in the first query....but that's another issue. See the attached file for the code.

Expression evaluation error at function a!queryEntity [line 33]: Cannot apply operator [IN] to field [checkid] when comparing to value [TypedValue[it=197,v={TypedValue[it=1,v=621],TypedValue[it=1,v=622],TypedValue[it=1,v=623]}]].

NestedQueryForWebAPI.txt

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0 sikhivahans over 8 years ago

@judym An other way of doing it is to prevent the queryEntity call in case if there are null values. This way you can be much clear with empty checks such as rule!APN_isEmpty(local!checkIds) or rule!APN_isEmpty(local!entities) and further we can also prevent the interface from querying the cons!ABC_AMOUNT_DS incase if local!checkIds has got null values.

Attached the code snippet for the same in case if you want to take a look.
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0 sikhivahans over 8 years ago

@judym An other way of doing it is to prevent the queryEntity call in case if there are null values. This way you can be much clear with empty checks such as rule!APN_isEmpty(local!checkIds) or rule!APN_isEmpty(local!entities) and further we can also prevent the interface from querying the cons!ABC_AMOUNT_DS incase if local!checkIds has got null values.

Attached the code snippet for the same in case if you want to take a look.
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