CODEWITHSUNDEEP
grailsspring-security
pragmus
pragmus

Reputation: 4043

Grails SpringSecurityService: Cannot get property 'principal' on null object

I'm writing an update or change user data form in Grails. This is a part of my form, where user can change his old login:

<g:form class="form-signin" controller="VisitorSpace">
    <label for="login" class="sr-only">Логин</label>
    <g:textField id="login" class="form-control" name="login" placeholder="Логин" value="${springSecurityService.principal.username}" required="" autofocus=""/>
...
</g:form>

Old user data must be shown before update. I use for it: ${springSecurityService.principal.username} But when I run this page I get such error:

Error 500: Internal Server Error
URI:/restorator/visitorSpace/editPrivateDataClass:java.lang.NullPointerExceptionMessage:Cannot get property 'principal' on null object

Upvotes: 0

Views: 1005

Answers (1)

Ian Roberts
Ian Roberts

Reputation: 122364

For that to work you would have had to have passed the springSecurityService to the GSP via its model. You can use applicationContext.springSecurityService to extract it from the context if you don't want to pass it in, or use the taglib instead of the service.

Upvotes: 1

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