# actions\_summary 中的字段是什么意思？

**URL:** <https://meta.discourse.org/t/what-do-the-fields-in-the-actions-summary-mean/47627>\
**Category:** Support\
**Created:** [2016年七月22日 03:08 UTC](https://meta.discourse.org/t/what-do-the-fields-in-the-actions-summary-mean/47627 "2016-07-22T03:08:42Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![adam\_beers](https://avatars.discourse-cdn.com/v4/letter/a/97f17d/32.png) [@adam\_beers](https://meta.discourse.org/u/adam_beers)\
**Post date:** [2016年七月22日 03:08 UTC](https://meta.discourse.org/t/what-do-the-fields-in-the-actions-summary-mean/47627/1 "2016-07-22T03:08:42Z")

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In the actions\_summary of a specific topic json response, there are some fields: acted, canAct, canUndo and canDeferFlags. I can’t find any documentation as to what they actual mean.

When I click on a “like” button for example, the acted is true, along with the canUndo. At some point the canUndo is false, but the acted remains true. What action makes the canUndo go false? What actions make these flags get set or unset?

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**Author:** ![fefrei](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/fefrei/32/119538_2.png) [@fefrei](https://meta.discourse.org/u/fefrei)\
**Post date:** [2016年七月22日 22:25 UTC](https://meta.discourse.org/t/what-do-the-fields-in-the-actions-summary-mean/47627/2 "2016-07-22T22:25:09Z")

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`canUndo` tells you… well… whether the action can be undone 🙂  
By default, all actions become final after 10 minutes. This is controlled by the site setting `post undo action window mins`.

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**Author:** ![adam\_beers](https://avatars.discourse-cdn.com/v4/letter/a/97f17d/32.png) [@adam\_beers](https://meta.discourse.org/u/adam_beers)\
**Post date:** [2016年七月23日 01:29 UTC](https://meta.discourse.org/t/what-do-the-fields-in-the-actions-summary-mean/47627/3 "2016-07-23T01:29:04Z")

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Thanks. I couldn’t figure out why some actions were not allowing undone.

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**Author:** ![JammyDodger](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jammydodger/32/254611_2.png) [@JammyDodger](https://meta.discourse.org/u/JammyDodger)\
**Post date:** [2024年六月8日 12:45 UTC](https://meta.discourse.org/t/what-do-the-fields-in-the-actions-summary-mean/47627/4 "2024-06-08T12:45:24Z")

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