ModuleInstanceGrouping.php

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<?php

namespace BristolSU\Support\ModuleInstance;

use BristolSU\Support\Activity\Activity;
use BristolSU\Support\ModuleInstance\Contracts\ModuleInstanceRepository as ModuleInstanceRepositoryContract;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Builder;

class ModuleInstanceGrouping extends Model
{

    protected $table = 'module_instance_grouping';
    
    
    protected $fillable = [
        'heading'
    ];

    public function heading()
    {
        return $this->heading;
    }

    public function scopeForActivity(Builder $query, Activity $activity)
    {
        $groupingIds = collect();
        foreach(app(ModuleInstanceRepositoryContract::class)->allThroughActivity($activity) as $moduleInstance) {
            if($moduleInstance->grouping_id === null) {
                continue;
            }
            $groupingIds->push($moduleInstance->grouping_id);
        }
        return $query->whereIn('id', $groupingIds->unique());
    }
}