def b = Book.get(1)
someMethodThatMightModifyTheInstance(b)
// when called without arguments returns true if any field was changed
if (b.isDirty()) {
// can also check if one field has changed
if (b.isDirty('title')) {
...
}
}isDirty
目的
檢查網域類別實例是否已修改。
範例
說明
參數
-
fieldName- 要檢查的欄位名稱