함수 orderBy()

1 개요

orderBy()

2 PHP

PHP orderBy() 문서를 참고하십시오.

3 Python

파이썬 orderBy() 문서를 참고하십시오.

from pprint import pprint 

def orderBy(by, ascending=[]):
  class K:
    def __init__(self, o, *args): self.o = o
    def __lt__(self, other):
      for i, key in enumerate(by):
        asc = ascending[i] if i < len(ascending) else True
        if self.o[key] < other.o[key]: return asc
        if self.o[key] > other.o[key]: return not asc
  return K

employees = [
{'EmployeeID':'1', 'Name':'한놈',   'BirthDate':'1999-01-01'},
{'EmployeeID':'2', 'Name':'두시기', 'BirthDate':'2000-01-01'},
{'EmployeeID':'3', 'Name':'석삼',   'BirthDate':'1999-01-01'},
{'EmployeeID':'4', 'Name':'너구리', 'BirthDate':'2000-01-01'}
]
pprint( sorted(employees, key=orderBy(['BirthDate'])) )
pprint( sorted(employees, key=orderBy(['BirthDate','Name'],ascending=[False,True])) )