# coding: utf-8

import os


class ControllerKB:
    def __init__(self):
        pass

    def is_exists(self, document):
        if os.path.exists('kb/%s.md' % document):
            return True
        return False

    def get(self, document):
        kb_markdown = u''
        for ss in file('kb/%s.md' % document, 'r'):
            kb_markdown += ss.decode('UTF-8')
        return kb_markdown