jreviews:permission:listing.create

Filters whether a user has permission to create a new listing. Return false to deny permission.

You need to have a working knowledge of Hooks before you get started.

#Parameters

#Boilerplate Code

Use the boilerplate code to start using the filter, and add your own logic to modify the first argument and return it.

fwd_add_filter('jreviews:permission:listing.create', function($canCreate, $user, $listing, $listingType)
{
    // Your code here
    
    return $canCreate;
}, 20, 4);

The , 20, N after your callback are the hook priority and the number of arguments your callback accepts. By default, a hook passes your callback only its first argument; for a filter, that is the value being filtered, so a simple function($value) { ... } needs nothing extra. If your callback declares more parameters, such as function($value, $listing) { ... }, you must add N (the parameter count, 2 here). Because N is the fourth argument to fwd_add_filter() or fwd_add_action(), you must also pass the priority (20 is the default). Leaving these off when your callback expects extra parameters causes a Too few arguments to function ... fatal error.

#Examples

• Limit One Listing Per User

#Limit One Listing Per User

Limit listing submissions to one per user by checking existing published listings count.

fwd_add_filter('jreviews:permission:listing.create', function($canCreate, $user, $listing, $listingType) {
    if ($user->id > 0) {
        $count = \JReviews\App\Models\Listing::where('owner_id', $user->id)
            ->published()
            ->count();
        
        if ($count > 0) {
            return false;
        }
    }
    
    return $canCreate;
}, 20, 4);

#Source Files

• app/Policies/ListingPolicy.php