adding arguments to GORM save through metaClass

gistfile1.java

// do this in the plugins doWithDynamic methods on each domain class:

def domainClass = grailsApplication.getDomainClass("Foo")
def clazz = domainClass.clazz

// prime the pump to get the GORM methods actually decorated and available on the meta class
clazz.count()  

clazz.metaClass.invokeMethod = { String name, args ->
    if (name == "save" && args[0] instanceof Map) {
        Map saveArgs = args[0]    
        if (saveArgs.bleat) {
            println "Bleating out $saveArgs"
        }
    }    
    return clazz.metaClass.getMetaMethod(name, args).invoke(delegate, args)
}


def f = new Foo(name: "bar")
f.save(bleat: true)  // prints out "Bleating out [bleat: true]" and then saves the object