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<?php
namespace MaksimM\CompositePrimaryKeys\Eloquent\Relationships;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Support\Collection as BaseCollection;
use MaksimM\CompositePrimaryKeys\Http\Traits\CompositeRelationships;
class CompositeBelongsToMany extends BelongsToMany
{
use CompositeRelationships;
/**
* Get all of the IDs from the given mixed value.
*
* @param mixed $value
* @return array
*/
protected function parseIds($value)
if ($value instanceof Model) {
return [$this->executeWithinOptionalBinaryTransformation(function() use ($value) {
return $value->{$this->relatedKey};
}, $value)];
}
if ($value instanceof Collection) {
return $value->pluck($this->relatedKey)->all();
if ($value instanceof BaseCollection) {
return $value->toArray();
return (array) $value;
* Get the ID from the given mixed value.
* @return mixed
protected function parseId($value)
return $value instanceof Model ? $this->executeWithinOptionalBinaryTransformation(function() use ($value) {
$value->{$this->relatedKey};
}, $value): $value;
maksimru /
composite-primary-keys
