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當機器未註冊(找不到)時,Machine.find_by(id: serial).on_accept 不該被執行 #1

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lctseng opened this issue Sep 15, 2017 · 0 comments
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lctseng commented Sep 15, 2017

::Machine.find_by(serial: id).on_accept

目前因為on_accept被執行而會噴error
是否該做一些事前檢查避免on_accept對找不到的機器呼叫?

@lctseng lctseng added the bug label Sep 15, 2017
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