New to this: Confused how groovy expressions work

[eperrone]

Hey all,

 

A bit new to this so I hope you will bear with me. I was trying to create some variables in iReport with groovy expressions.

 

I have used groovy scripting for other purposes and I am confused about how the groovy must be formatted.

I have a variable that I want to be equal to one of my database fields if another field is equal to 1 so this shorthand expression does the job:

($F{SOURCE_WP} == 1.00) ?  $F{PROJECT_PRICE} : 0.00

Of course I have some other needs that require more complicated things like this, so can I write this same expression using if() { } else {} type syntax? I have used that in other grovy scripts but I always get errors in iReport when I try anything with if() in it...

for example this... does not work it gives error:

if($F{SOURCE_WP} == 1.00)
{
        $F{PROJECT_PRICE}
} else {
    0.00
}

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed, calculator_id_work_plan_comparison_1285183287087_903939: 193: unexpected token: if @ line 193, column 40. 1 error      at net.sf.jasperreports.compilers.JRGroovyCompiler.compileUnits(JRGroovyCompiler.java:101)

 

Thanks for you time!

Eric

[mdahlman]

 Nope. You cannot write statements like that. You can only use expressions like you showed in your first example. This is true whether you are using Java or Groovy as the scripting language.

If you need more complex things, you can nest expressions:

($F{SOURCE_WP} == 1.00)
?  ( $F{PROJECT_PRICE} != null && $F{PROJECT_PRICE} > 100
     ? "Woo Hoo"
     : "Bummer"
)
: "Undecided"

Regards,
Matt