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https://github.com/ets-labs/python-dependency-injector.git
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42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
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"""`@di.inject()` decorator with classes example."""
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import sqlite3
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import flask
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import flask.views
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import dependency_injector as di
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database = di.Singleton(sqlite3.Connection,
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database=':memory:',
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timeout=30,
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detect_types=True,
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isolation_level='EXCLUSIVE')
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app = flask.Flask(__name__)
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@di.inject(database=database)
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@di.inject(some_setting=777)
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class HelloView(flask.views.View):
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"""Example flask class-based view."""
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def __init__(self, database, some_setting):
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"""Initializer."""
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self.database = database
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self.some_setting = some_setting
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def dispatch_request(self):
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"""Handle example request."""
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one = self.database.execute('SELECT 1').fetchone()[0]
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one *= self.some_setting
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return 'Query returned {0}, db connection {1}'.format(one, database)
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app.add_url_rule('/', view_func=HelloView.as_view('hello_view'))
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if __name__ == '__main__':
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app.run()
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# Example output of "GET / HTTP/1.1" is:
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# Query returned 777, db connection <sqlite3.Connection object at 0x1057e4030>
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