supply default method for events

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#247 创建于 2019年9月2日 1 条评论 0 个 reaction 已指派 0 人在 GitHub 查看

enhancement good first issue

描述

Currently if no callback is supplied for the event, nothing happens, and firing the event returns nil.

It might be handy be able to supply a default action.

i.e. `fires save: :default_save_method`

currently you can work around this by checking `props[event_name]` for nil

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