재사용 가능한 코드를 만드는 방법은 무엇입니까?

Question

아래 코드와 같은 인스턴스가 많이 있습니다. 어떻게 그들을 추상화하고 재사용 할 수 있습니까?

#json_generator() is a function that yields paginated json 
#Foo and Bar are sqlalchemy models 

def fetch_foo_data(): 
    URL = BASE_URL + ','.join(Foo.__table__.columns.keys()) 
    return json_generator(URL) 

def fetch_bar_data(): 
    #Bar model has id as primary key that doesn't exist in the JSON data 
    #so I am excluding it 
    URL = BASE_URL + ','.join(Bar.__table__.columns.keys()[1:]) 
    return json_generator(URL) 

def bulk_load_foo_data(): 
    for json in fetch_foo_data(): 
     foos = map(lambda foo: Foo(**foo), json) 
     try: 
      session.bulk_save_objects(foos) 
      session.commit() 
     except Exception as e: 
      print e 
      session.rollback() 

def bulk_load_bar_data(): 
    for json in fetch_bar_data(): 
     bars = map(lambda bar: Bar(**bar), json) 
     try: 
      session.bulk_save_objects(bars) 
      session.commit() 
     except Exception as e: 
      print e 
      session.rollback() 

Answer 1

함수 객체 전달합니다 두 번째 함수의

def fetch_object_data(obj, min=0, max=-1): 
    URL = BASE_URL + ','.join(obj.__table__.columns.keys()[min:max]) 
    return json_generator(URL) 

:

이

def bulk_load_object_data(obj): 
    for json in fetch_foo_data(): 
     foos = map(lambda foo: obj(**foo), json) 
     try: 
      session.bulk_save_objects(foos) 
      session.commit() 
     except Exception as e: 
      print e 
      session.rollback() 

실제로 일을 코드 무엇 모르겠어요 ...