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author | Daniel Sockwell <dsockwell@gmail.com> | 2020-03-20 22:10:42 -0400 |
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committer | GitHub <noreply@github.com> | 2020-03-21 03:10:42 +0100 |
commit | 8758221e7344645bc1357578ec1789aa7d46da08 (patch) | |
tree | 13842c65ead6862d2ae86296b6511d29f46544c8 /app/mailers | |
parent | b5dace62b0b65f8b24a9266f96f945d65bda30c9 (diff) |
Fix frontend crash when deleting announcements (#13283)
This two-line change fixes a crash in the front end that occurred under the following circumstances: * A server had more than one announcement, * A user was displaying the announcements, and * An announcement was deleted (or unpublished, which amounts to the same thing.) As might be expected, the bug was caused by attempting to access a notification using an index value outside the bounds of the existing announcements. Specifically, in two places. First, `_markAnnouncementAsRead` attempts to modify announcements based on the current index. This is what caused the front end crash. Second, when rendering the `Announcements` component, the code paginates the announcements and displays the current one. This did not cause a crash, but caused the front end to confusingly display a blank announcement (in situations that would have caused a crash) with no way for the user to navigate back to previous announcements. This commit fixes both issues by adding a check to ensure that the code never attempts to access an announcement with an index greater than or equal to the number of announcements present.
Diffstat (limited to 'app/mailers')
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