Merge pull request #46 from gearbox-solutions/fix-hasone-hasmany-null

Fix hasone hasmany null

Author: likeadeckofcards

src/Database/Eloquent/Relations/HasMany.php

@@ -19,4 +19,11 @@ public function addConstraints()
         }
     }
 
+    protected function getKeys(array $models, $key = null)
+    {
+        return collect($models)->map(function ($value) use ($key) {
+            return $key ? $value->getAttribute($key) : $value->getKey();
+        })->values()->filter()->unique(null, true)->sort()->all();
+    }
+
 }

src/Database/Eloquent/Relations/HasOne.php

@@ -17,4 +17,11 @@ public function addConstraints()
             $this->query->where($this->foreignKey, '==', $this->getParentKey());
         }
     }
+
+    protected function getKeys(array $models, $key = null)
+    {
+        return collect($models)->map(function ($value) use ($key) {
+            return $key ? $value->getAttribute($key) : $value->getKey();
+        })->values()->filter()->unique(null, true)->sort()->all();
+    }
 }