/**
* Class BookChild.
*
- * @property int $book_id
- * @property int $priority
- * @property Book $book
+ * @property int $book_id
+ * @property int $priority
+ * @property string $book_slug
+ * @property Book $book
*
* @method Builder whereSlugs(string $bookSlug, string $childSlug)
*/
abstract class BookChild extends Entity
{
+ protected static function boot()
+ {
+ parent::boot();
+
+ // Load book slugs onto these models by default during query-time
+ static::addGlobalScope('book_slug', function (Builder $builder) {
+ $builder->addSelect(['book_slug' => function ($builder) {
+ $builder->select('slug')
+ ->from('books')
+ ->whereColumn('books.id', '=', 'book_id');
+ }]);
+ });
+ }
+
/**
- * Scope a query to find items where the the child has the given childSlug
+ * Scope a query to find items where the child has the given childSlug
* where its parent has the bookSlug.
*/
public function scopeWhereSlugs(Builder $query, string $bookSlug, string $childSlug)