Added delete method to Document objects

mongoengine/document.py

@@ -21,6 +21,12 @@ class Document(BaseDocument):
         object_id = self.objects._collection.save(self.to_mongo())
         self.id = object_id
 
+    def delete(self):
+        """Delete the document from the database. This will only take effect
+        if the document has been previously saved.
+        """
+        self.objects._collection.remove(self.id)
+
     @classmethod
     def drop_collection(cls):
         """Drops the entire collection associated with this Document type from

tests/document.py

@@ -176,6 +176,15 @@ class DocumentTest(unittest.TestCase):
         self.assertEqual(person_obj['age'], 30)
         self.assertEqual(person_obj['_id'], person.id)
 
+    def test_delete(self):
+        """Ensure that document may be deleted using the delete method.
+        """
+        person = self.Person(name="Test User", age=30)
+        person.save()
+        self.assertEqual(self.Person.objects.count(), 1)
+        person.delete()
+        self.assertEqual(self.Person.objects.count(), 0)
+
     def test_save_custom_id(self):
         """Ensure that a document may be saved with a custom _id.
         """