CODEWITHSUNDEEP
grailsgrails-ormgrails-2.0
Andrey Yaskulsky
Andrey Yaskulsky

Reputation: 2516

calling contains() method within find

I have the following domain structure:

class Emloyee {

  static hasMany = [users: User]
  .....  

}

And I want to code a method that

  1. deletes user from employee that owns it
  2. deletes user

my code looks like:

def deleteUser(User userInstance) {
    def employee = Employee.find { users.contains(userInstance) }
    employee .removeFromUsers(userInstance)
    employee .save(flush: true, failOnError: true)
    userInstance.delete(flush: true, failOnError: true)
}

and this code gives me an exception: 

No signature of method: grails.gorm.DetachedCriteria.contains() is applicable for argument types: (User)

What I've done wrong? Thank you!

Upvotes: 0

Views: 100

Answers (1)

svema
svema

Reputation: 35

Does a user always contain to one employee?

Then you can use 

static belongsTo = [employee: Employee]

in your User domain class. In this case you don't need to manually delete the user from the employee domain. GORM delete it when you call userInstance.delete(...)

If you don't want to use the belongsTo than you can delete the user this way:

def deleteUser(User userInstance) {
    def c = Employee.createCriteria()
    def result = c.get {
        users {
            idEq(userInstance.id)
        }
    }
    result.removeFromUsers(userInstance)

    userInstance.delete(flush: true, failOnError: true)
}

Hope this helps. Sven

Upvotes: 1

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