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Fix #to_json for IO objects, fixes #26132 #30953

merged 1 commit into from Oct 23, 2017


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@rohitpaulk rohitpaulk commented Oct 23, 2017


Fixes #26132.


  • For unreadable IO objects, to_json would raise an IOError
  • For readable IO objects, to_json would cause a side-effect by reading the contents of the stream.


IO#to_json returns the to_s representation for both readable and unreadable IO objects.

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@rails-bot rails-bot commented Oct 23, 2017

Thanks for the pull request, and welcome! The Rails team is excited to review your changes, and you should hear from @kamipo (or someone else) soon.

If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes.

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@rafaelfranca rafaelfranca merged commit 813f8e3 into rails:master Oct 23, 2017
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rafaelfranca added a commit that referenced this pull request Oct 23, 2017
Fix #to_json for IO objects, fixes #26132
@rohitpaulk rohitpaulk deleted the rohitpaulk:fix-io-to-json branch Oct 24, 2017
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