Grails optionValue displaying 'null' in g:select tag

Question

I'm running into the issue that with my grails select tag. If the values in the optionValue field are null , it actually displays null . Is there a way to do some safe null checking and display a blank (or nothing at all) if the value is null? The select I have is

<g:select name="epoc" value="${travelInstance?.epoc?.id}" from="${user?.epocs}" optionKey="id" optionValue="${{it.firstName + ' ' + it.lastName}}" noSelection="${['null':' ']}" disabled="${disabled}"/>

If the firstName field is null it will display something like null Jones . Is there any way for it to display just Jones ?

Answer 1

您可以使用三元运算符轻松解决此问题，如下所示：

${{(it?.firstName ? it.firstName + ' ' : '') + it.lastName}}