Fixes #736

src/Jenssegers/Mongodb/Relations/EmbedsMany.php

@@ -7,6 +7,21 @@ use MongoDB\BSON\ObjectID;
 
 class EmbedsMany extends EmbedsOneOrMany
 {
+    /**
+     * Initialize the relation on a set of models.
+     *
+     * @param  array   $models
+     * @param  string  $relation
+     */
+    public function initRelation(array $models, $relation)
+    {
+        foreach ($models as $model) {
+            $model->setRelation($relation, $this->related->newCollection());
+        }
+
+        return $models;
+    }
+
     /**
      * Get the results of the relationship.
      *

src/Jenssegers/Mongodb/Relations/EmbedsOne.php

@@ -5,6 +5,21 @@ use MongoDB\BSON\ObjectID;
 
 class EmbedsOne extends EmbedsOneOrMany
 {
+    /**
+     * Initialize the relation on a set of models.
+     *
+     * @param  array   $models
+     * @param  string  $relation
+     */
+    public function initRelation(array $models, $relation)
+    {
+        foreach ($models as $model) {
+            $model->setRelation($relation, null);
+        }
+
+        return $models;
+    }
+
     /**
      * Get the results of the relationship.
      *

src/Jenssegers/Mongodb/Relations/EmbedsOneOrMany.php

@@ -75,23 +75,6 @@ abstract class EmbedsOneOrMany extends Relation
         // There are no eager loading constraints.
     }
 
-    /**
-     * Initialize the relation on a set of models.
-     *
-     * @param  array   $models
-     * @param  string  $relation
-     */
-    public function initRelation(array $models, $relation)
-    {
-        foreach ($models as $model) {
-            $model->setParentRelation($this);
-
-            $model->setRelation($relation, $this->related->newCollection());
-        }
-
-        return $models;
-    }
-
     /**
      * Match the eagerly loaded results to their parents.
      *