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from custom_decorators import singleton
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@singleton
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class OrderRepository:
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def __init__(self):
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self.db = None
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def create(self, order_id, from_address, to_address):
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pass
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def update_status(self, order_id, status):
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# 更新状态和时间
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pass
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def get_creation_time(self, order_id):
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pass
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