New relationship type: morph many

Require PHP 7.0+

Author: robgridley

composer.json

@@ -9,7 +9,7 @@
     ],
     "license": "MIT",
     "require": {
-        "php": ">=5.5.9",
+        "php": ">=7.0.0",
         "nesbot/carbon": "^1.20",
         "doctrine/inflector": "~1.0"
     },

src/Model.php

@@ -356,6 +356,22 @@ public function key($primaryKey = null)
         return $key;
     }
 
+    /**
+     * Fetch a "morph many" relationship.
+     *
+     * @param string $relatedType
+     * @param string $baseObject
+     * @param string $baseObjectKey
+     * @param string|null $primaryKey
+     * @return Builder
+     */
+    public function morphMany($relatedType, $baseObject = 'baseObject', $baseObjectKey = 'baseObjectKey', $primaryKey = null)
+    {
+        return $this->client->model($relatedType)
+            ->filter('@' . $baseObject, $this->type)
+            ->filter('@' . $baseObjectKey, $this->key($primaryKey));
+    }
+
     /**
      * Create a new model instance.
      *