Invalid argument supplied for foreach() - displayMetaTags() error on freshly created model instances

[tonyneurony]

• Laravel Version: 8.0
• Varbox Version: 2.1
• PHP Version: 7.3

Description of the bug (screenshots might help):

When you add a HasMetaTags trait to a model, that previously had some entries in DB (for example i seed pages for Page model), meta column remains null in DB, until you save that model in DB(so it saves the json data to meta column), you will be getting 'Invalid argument supplied for foreach()' error. The fix is quick: in displayMetaTags() method, wrap the foreach into if (!empty($tags)) {

Steps to reproduce (fresh Varbox installation):

[zbiller]

Hi @tonyneurony

Can you please let me know if you casted the meta column to an array as per the docs?

/**
 * The attributes that should be casted to native types.
 *
 * @var array
 */
protected $casts = [
    ...
    'meta' => 'array',
];

[tonyneurony]

Hi @zbiller Yes, for sure. This actually happens on default Page model as well, when, for example u have a page seeded via seeder, thus the meta columns remains 'null' in DB

[zbiller]

@tonyneurony

I've applied a fix for this issue. It's available on version 2.2.0.

Thanks for your support!