Fix frontend crash when deleting announcements (#13312)
Refactor and fix #13283, which only worked in some cases.pull/13304/merge
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beb80adb51
commit
858d0dd168
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@ -378,6 +378,14 @@ class Announcements extends ImmutablePureComponent {
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index: 0,
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};
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static getDerivedStateFromProps(props, state) {
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if (props.announcements.size > 0 && state.index >= props.announcements.size) {
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return { index: props.announcements.size - 1 };
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} else {
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return null;
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}
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}
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componentDidMount () {
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this._markAnnouncementAsRead();
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}
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@ -389,7 +397,7 @@ class Announcements extends ImmutablePureComponent {
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_markAnnouncementAsRead () {
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const { dismissAnnouncement, announcements } = this.props;
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const { index } = this.state;
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const announcement = announcements.get(index) || announcements.get(index - 1);
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const announcement = announcements.get(index);
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if (!announcement.get('read')) dismissAnnouncement(announcement.get('id'));
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}
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@ -407,7 +415,7 @@ class Announcements extends ImmutablePureComponent {
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render () {
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const { announcements, intl } = this.props;
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const index = this.state.index < announcements.size ? this.state.index : announcements.size - 1;
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const { index } = this.state;
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if (announcements.isEmpty()) {
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return null;
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