config.py

# coding=utf-8
import os
basedir = os.path.abspath(os.path.dirname(__file__))

class Config:
    CSRF_ENABLED = True
    SECRET_KEY = 'you-guess'
    SQLALCHEMY_COMMIT_ON_TEARDOWN = True
    SQLALCHEMY_TRACK_MODIFICATIONS = False

    CHAPTER_PER_PAGE = 20

    SSL_DISABLE = True

    @staticmethod
    def init_app(app):
        pass

class DevelopmentConfig(Config):
    SQLALCHEMY_DATABASE_URI = os.environ.get('DEV_DATABASE_URL') or \
                              'sqlite:///' + os.path.join(basedir, 'data-dev.sqlite')
    DEBUG = True

class HerokuConfig(Config):
    SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or \
                              'sqlite:///' + os.path.join(basedir, 'data.sqlite')

    SSL_DISABLE = bool(os.environ.get('SSL_DISABLE'))

    @classmethod
    def init_app(cls, app):
        Config.init_app(app)

        # 处理代理服务器首部
        from werkzeug.contrib.fixers import ProxyFix
        app.wsgi_app = ProxyFix(app.wsgi_app)

config = {
    'development': DevelopmentConfig,
    'heroku': HerokuConfig,
    'default': DevelopmentConfig
}