jreviews:permission:field.write

Filters whether a user has permission to see and edit a custom field in listing/review submit and edit forms.

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:field.write', function($canWrite, $user, $field)
{
    // Your code here
    
    return $canWrite;
}, 20, 3);

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

• Prevent Changes to Custom Fields Content on Listing Updates

#Prevent Changes to Custom Fields Content on Listing Updates

In this example users can fill out the content for fields `jr_fieldone`, `jr_fieldtwo`, `jr_fieldthree` while creating a new listing, but they are prevented from changing them afterwards. Only administrators will have access to the fields while editing listings. Note: You may need to check the request context to determine if this is a create or update operation.

fwd_add_filter('jreviews:permission:field.write', function($canWrite, $user, $field)
{
    $fieldNames = ['jr_fieldone', 'jr_fieldtwo', 'jr_fieldthree'];
    
    // Allow managers full access
    if ($user->isManager()) {
        return $canWrite;
    }
    
    // Check if this is an update operation (you may need to access the request)
    $isUpdate = request()->route()->getName() === 'listing.update';
    
    // Allow field access during creation, but not updates
    if ($isUpdate && in_array($field->name, $fieldNames)) {
        return false;
    }
    
    return $canWrite;
}, 20, 3);

#Source Files

• app/Policies/FieldPolicy.php