(Quick Reference)
findOrCreateWhere
Purpose
Uses named arguments that match the property names of the domain class to produce a query that returns the first result. This method behaves just like
findWhere except that it will never return
null. If a matching instance cannot be found then a new instance will be created, populated with values from the query parameters and returned. The difference between this method and
findOrSaveWhere is that this method will not save a newly created instance where
findOrSaveWhere does.
Examples
Given the domain class:
class Book { String title
Date releaseDate
String author static constraints = {
releaseDate nullable: true
}
}You can query in the form:
def book = Book.findOrCreateWhere(author: "Stephen King", title: "The Stand")
Description
Parameters:
queryParams - A Map of key/value pairs to be used in the query. If no matching instance is found then this data is used to initialize a new instance.
