class Book {
String title
Date releaseDate
String author
static constraints = {
releaseDate nullable: true
}
}findWhere
用途
使用對應於網域類別屬性名稱的名稱參數來執行查詢，傳回第一個符合的結果。
範例
給定網域類別
您可以使用以下格式查詢
def book = Book.findWhere(author: "Stephen King", title: "The Stand")
boolean isReleased = Book.findWhere(author: "Stephen King",
title: "The Stand",
releaseDate: null) != null說明
參數
-
queryParams- 要用於查詢的Map鍵值對