grails - assert whether a domain class table is empty in a grails service

Question

Some static method did not get injected to grails services. But What if I wanna assert whether a domain class table is empty in a service?

Like in a controller, I can do:

assert DomainClass.count()==0 

What is the alternative in a grails service or a grails domain class?

Answer 1

我不确定为什么它不能按原样工作，但是当我将断言用大括号括起来时它对我有用

assert (DomainClass.count()==0)