August 2017
Intermediate to advanced
500 pages
12h 3m
Japanese
Content preview from PythonとJavaScriptではじめるデータビジュアライゼーション
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442
付録 A 開発環境から本番環境への移行
します。
$ export NBVIZ_CONFIG=config.DevelopmentConfig
Windows
では、
export
の代わりに
set
を使用します。
> set NBVIZ_CONFIG=config.DevelopmentConfig
NBVIZ_CONFIG
に基づいてプロジェクトを構成するには、
Python
の
os
（オペレーティングシステ
ム）モジュールで
NBVIZ_CONFIG
の値を取得し、
config.from_object
メソッドでその値を使います。
...
app = Flask(_ _name_ _)
import os
cfg_var = os.environ.get('NBVIZ_CONFIG')
if not cfg_var:
raise RuntimeError('The environment variable NBVIZ_CONFIG'\
' is not set. Please set to enable configuration'
)
app.config.from_object(cfg_var)
...
環境変数を
1
つ設定することでアプリケーションを構成できました。構成変数をアプリケーショ
ンに渡してみましょう。
A.2.2
JavaScript
アプリケーションの構成
構成設定を
JavaScript
アプリケーションに渡す方法はいくつかあります。
Web
セッションを
開始してユーザ認証に基づいて構成することもできれば（この付録の後で説明します） ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.