(Quick Reference)
clearErrors
Purpose
Resets the list of errors on a domain class. This may be useful if a domain class contains errors because of binding problems or validation problems. The errors may be corrected programatically. Validation may continue to fail unless the errors are cleared.
Examples
def b = new Book(title: "The Shining")
b.validate()
if (b.hasErrors()) { // clear the list of errors
b.clearErrors() // fix the validation issues
b.author = "Stephen King" // re-validate
b.validate()
}