[entity] move checks for name and type

Author: jgrewe

nixio/entity.py

@@ -22,11 +22,10 @@ def __init__(self, nixfile, nixparent, h5group):
     def create_new(cls, nixfile, nixparent, h5parent, name=None, type_=None):
         if name and type_:
             id_ = util.create_id()
-            util.check_entity_name_and_type(name, type_)
         if not name:
             name = util.create_id()
             id_ = name
-            util.check_entity_type(type_)
+        util.check_entity_name_and_type(name, type_)
 
         h5group = h5parent.open_group(name)
         h5group.set_attr("name", name)