add a delete method to entities

src/Entity.php

@@ -378,7 +378,7 @@ public function reset($attribute = null)
     /**
      * Save the entity to EntityManager
      *
-     * @return Entity
+     * @return $this
      * @throws IncompletePrimaryKey
      */
     public function save()
@@ -399,6 +399,20 @@ public function save()
         return $this;
     }
 
+    /**
+     * Delete the entity
+     *
+     * > You might want to implement soft deletes by overriding this method.
+     *
+     * @return $this
+     */
+    public function delete()
+    {
+        $this->entityManager->delete($this);
+
+        return $this;
+    }
+
     /**
      * Returns whether or not the entity exists in database
      *