def editUserPassword() {
   [user: User.get(params.userId)]
}

def updateUserPassword() {
   def user = User.get(params.userId)
   user.password = params.newPassword
   if (!user.save())
      render view: 'editUserPassword', model: [user: user]
      return
   }

   // redirect to the 'success' page or render the user with [user: user]
}

def update = {
    String passwordFieldName = SpringSecurityUtils.securityConfig.userLookup.passwordPropertyName

    def user = findById()
    if (!user) return
    if (!versionCheck('user.label', 'User', user, [user: user])) {
        return
    }

    def oldPassword = user."$passwordFieldName"
    user.properties = params
    if (params.password && !params.password.equals(oldPassword)) {
        String salt = saltSource instanceof NullSaltSource ? null : params.username
        user."$passwordFieldName" = springSecurityUiService.encodePassword(params.password, salt)
    }

    if (!user.save(flush: true)) {
        render view: 'edit', model: buildUserModel(user)
        return
    }

    String usernameFieldName = SpringSecurityUtils.securityConfig.userLookup.usernamePropertyName

    lookupUserRoleClass().removeAll user
    addRoles user
    userCache.removeUserFromCache user[usernameFieldName]
    flash.message = "${message(code: 'default.updated.message', args: [message(code: 'user.label', default: 'User'), user.id])}"
    redirect action: edit, id: user.id
}