CODEWITHSUNDEEP
grails
kofhearts
kofhearts

Reputation: 3784

Is it possible to refresh a property in Grails?

In order to refresh a domain object i.e to re-read the data from database we do refresh(). 

def b = Book.get(1)
…
b.refresh()

I am wondering whether we can refresh a property of the domain.

Suppose i have bound params to Book object and suppose i want to unbind the author property from the book object then is it possible to achieve that?

Let's consider the Book is defined as 

class Book {
   String title
   String author
   String category
}

Suppose I do bindData(bookInstance, params). This will bind to all properties. I want to unbind the author after bindData. Is this possible?

Upvotes: 2

Views: 98

Answers (2)

kofhearts
kofhearts

Reputation: 3784

I solved this by using bookInstance.author = bookInstance.getPersistentValue('author').

Upvotes: 1

doelleri
doelleri

Reputation: 19682

It sounds like you just want to exclude binding a particular property.

bindData(bookInstance, params, [exclude: 'author'])

will bind all of the Book properties except for those listed.

You can conversely use include to explicitly list which properties to bind from params.

bindData(bookInstance, params, [include: 'title', 'category'])

Upvotes: 1

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