Crud: [4.1][Bug] browse_multiple field doesn't work correct if stored as fake.

[lotarbo]

Bug report

What I did

In model

protected $fakeColumns = ['content'];
protected $casts = ['content' => 'array'];

In my Crud controller i have field

CRUD::field('slides')->type('browse_multiple')->label('Images')->fake(true)>store_in('content')->sortable(true)->hint('webp');

What I expected to happen

Field works exactly as non-fake. Showing images after save.

What happened

When i select images and save, value stored in db, like

{"slides": "[\"uploads/webp-test.webp\"]"}

But when i open my Entity in admin, i have empy field. Then, i save it. And in db i have this

{"slides": "\"[\\\"uploads\\/webp-test.webp\\\"]\""}

What I've already tried to fix it

nothing

Backpack, Laravel, PHP, DB version

When I run php artisan backpack:version the output is:

### PHP VERSION:
PHP 7.4.6 (cli) (built: May 14 2020 10:38:36) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
    with Zend OPcache v7.4.6, Copyright (c), by Zend Technologies

### LARAVEL VERSION:
v7.13.0@6fa69bfbd57744a5bbec5538ce483919b3fd625f

### BACKPACK VERSION:
4.1.6@cbd4143d3eb8302916012af205565cd3183f274f

[lotarbo]

@pxpm when you answered the previous issue, it became clear to me that I used to work incorrectly with the fake field all the time)
using withFakes()
and cast fake field slides to array solving problem.
Maybe add more documentation to fake field section?)

[pxpm]

Can you please explain where you added withFakes() to solve this problem ?

I am going to close the issue but feel free to write it down in comments if you can, it might help other people that faces the same problem.

Best,
Pedro

[lotarbo]

@pxpm Before I realized that I need to use withFakes() to access fake field as normal field, i'm doing like this json_decode($model->content['slides'], true) to work inside front controller or views. And in common fileds, it's work, without casting fake field.

Right way of using fake field as i understand:

Non translatable fake field stored in fake_content as example

In Crud:

CRUD::field('slides')->type('browse_multiple')->label('Images')->fake(true)>store_in('fake_content');

In Model:

protected $fakeColumns = ['fake_content'];
protected $casts = [
    'fake_content' => 'array',
    'slides' => 'array',
];

In Contoller or view
$model = Model::first()->withFakes();
and now we can working with our fake slides field as normally

foreach ($model->slides as $image) {
    //do something with $image
}

Translatable fake field stored in fake_content_i18n as example

In Crud:

CRUD::field('slides')->type('browse_multiple')->label('Images')->fake(true)>store_in('fake_content_i18n');

In Model:

protected $fakeColumns = ['fake_content_i18n'];
protected $translatable = ['fake_content_i18n'];
protected $casts = [
    'slides' => 'array',
];

In Contoller or view
$model = Model::first()->withFakes();
and now we can working with our fake slides field as normally

foreach ($model->slides as $image) {
    //do something with $image
}