attachModel policy doesn't not hide the button on the index

Level 58

To address the issue where the "attach" button is still visible despite the attach{Model} policy preventing the user from attaching resources, you need to ensure that the policy method is correctly implemented and that it's being checked before the button is rendered.

Here's a step-by-step solution to ensure the attach button is hidden based on the policy:

Define the Policy Method: Ensure that your TagPolicy has a method that determines whether the attach button should be shown. This method might look something like attachAny{Model}. For example, if your related model is Post, you might have:
```
public function attachAnyPost(User $user, Model $model)
{
    // Your logic to determine if the attach button should be shown
    return true; // or false based on some conditions
}
```
Register the Policy: Make sure that your policy is registered in your AuthServiceProvider. This typically looks like:
```
protected $policies = [
    'App\Model' => 'App\Policies\ModelPolicy',
];
```
Ensure that Tag and its corresponding policy are correctly registered.
Check the Policy in the View: Before rendering the attach button, you should check the policy. This can be done using the @can directive in your Blade template. For example:
```
@can('attachAnyPost', [App\Tag::class, $post])
    <button>Attach</button>
@endcan
```
Replace App\Tag::class and $post with the appropriate model and instance based on your application's context.
Debugging: If the button still appears, ensure that your policy method is being hit. You can debug this by placing a log statement or a breakpoint within your policy method to confirm it's being executed.
Clear Caches: Sometimes, changes in policies might not take effect immediately due to caching. Run php artisan cache:clear and php artisan config:clear to ensure your changes are applied.

Here's a complete example of what the policy might look like:

namespace App\Policies;

use App\User;
use App\Post;
use Illuminate\Auth\Access\HandlesAuthorization;

class TagPolicy
{
    use HandlesAuthorization;

    public function attachAnyPost(User $user, Post $post)
    {
        // Example condition: only allow if user is admin
        return $user->is_admin;
    }
}

And in your Blade file:

@can('attachAnyPost', [App\Tag::class, $post])
    <button>Attach Post</button>
@endcan

Make sure to adjust the model and conditions according to your specific application requirements.

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