tweak belongs to eager constraining.

2012-04-17 14:33:17 -05:00 · 2012-04-17 14:33:17 -05:00 · b7ac667405
parent f6388e26be
commit b7ac667405
1 changed files with 4 additions and 1 deletions
--- a/laravel/database/eloquent/relationships/belongs_to.php
+++ b/laravel/database/eloquent/relationships/belongs_to.php
@ -65,7 +65,10 @@ public function eagerly_constrain($results)
 		// are looking for the parent of a child model in this relationship.
 		foreach ($results as $result)
 		{
-			$keys[] = $result->{$this->foreign_key()};
+			if ( ! is_null($key = $result->{$this->foreign_key()}))
+			{
+				$keys[] = $key;
+			}
 		}

 		$this->table->where_in($this->model->key(), array_unique($keys));