CODEWITHSUNDEEP
javaplayframeworkplayframework-2.0
Rob N
Rob N

Reputation: 16429

In Play 2 framework (Java), how to add User object to session after authentication

I looked at the "zentasks" sample code to learn some basic user login and security stuff. The Appication controller has an authenticate method, and during that method the User.authenticate method is called. Here are a couple code snippets from those links:

public static Result authenticate() {
    Form<Login> loginForm = form(Login.class).bindFromRequest();
    if(loginForm.hasErrors()) {
        return badRequest(login.render(loginForm));
    } else {
        session("email", loginForm.get().email);
        return redirect(
            routes.Projects.index()
        );
    }
}
...
public static class Login {

    public String email;
    public String password;

    public String validate() {
        if(User.authenticate(email, password) == null) {
            return "Invalid user or password";
        }
        return null;
    }

}

As you can see, if it authenticates (ie, finds a User object), the authenticate method adds "email" to the session. I'd like to add the full user object instead, but in the controller action, where I have the session, I don't have the User object. I don't want to requery the database, I'd like to use the same User object that was just found in Login.validate. What's a good way to do that?

Upvotes: 0

Views: 1133

Answers (1)

Jeff LaJoie
Jeff LaJoie

Reputation: 1725

Is there a reason you can't simply add a field to your login class?

public static class Login {

    public String email;
    public String password;
    public User user;

    public String validate() {
        user = User.authenticate(email, password);
        if(user == null) {
            return "Invalid user or password";
        }
        return null;
    }
}

Not that this will necessarily help you, looking at the API it seems you can't add an object to the session, only Strings.

http://www.playframework.org/documentation/api/2.0.4/java/play/mvc/Http.Session.html

Upvotes: 3

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