refactor: use last_moved_timestamp instead of scanning edit_history(#1397) #2058
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Replace inefficient edit_history scanning with direct last_moved_timestamp lookup to improve performance when determining when items were last moved. Fixes zulip#1397
chrisbobbe
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Jan 2, 2026
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chrisbobbe
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chrisbobbe
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One comment below, from a quick skim. Also, this PR needs tests.
lib/api/model/model.dart
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| // Old server: need to scan edit_history to determine if content was edited. | ||
| final editHistory = json['edit_history'] as List<dynamic>?; | ||
| if (editHistory == null) return lastEditTimestamp; | ||
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| // Find the timestamp of the first content edit. | ||
| for (final entry in editHistory) { | ||
| if (entry['prev_content'] != null) { | ||
| return entry['timestamp'] as int?; | ||
| } | ||
| } | ||
| return null; |
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This is meant to replace the history-scanning code in MessageEditState._readFromMessage, right? But that code is still present, untouched.
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Yes, but in the issue I observed other contributor plan was to use editHistory too.
But after you point out this I checked is it neccessary to keep that, but I conclude to that it is not necessary and everything is working correctly on the new server.
@chrisbobbe now could you check ?
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Replace inefficient edit_history scanning with direct last_moved_timestamp lookup to improve performance when determining when items were last moved.
Fixes #1397