Cannot assign string to property App\Entity\User::$roles of type array!

[karaka200]

Hi
I use this in my user entity:

    #[ORM\Column(type: 'json')]
    private array $roles = [];

but when I want login show this error:
Cannot assign string to property App\Entity\User::$roles of type array
How can I fix this problem?

[zspine]

@karaka200 Ensure you are not trying to set a string value for the array property. For example:

$this->roles = 'ROLE_ADMIN';

it should be

$this->roles[] = 'ROLE_ADMIN';

[karaka200]

I use this:

    public function getRoles(): array
    {
        $roles = $this->roles;
        // guarantee every user at least has ROLE_USER
        $roles[] = 'ROLE_USER';
        return array_unique($roles);
    }
    public function setRoles(array $roles): self
    {
        $this->roles = $roles;
        return $this;
    }

[karaka200]

And I use PHP 8.0.9

[zspine]

can you share the stacktrace of the error?

[karaka200]

Oh I find problem, wrong save in database. Thank you

[zspine]

@karaka200 great!!!