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Patch #14567

open

migrate_from_trac.rake does not convert timestamps in Trac database version 23

Added by Craig Rodrigues almost 11 years ago. Updated over 10 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
Importers
Target version:
-
Start date:
Due date:
% Done:

0%

Estimated time:

Description

In Trac API 0.12, the representation of timestamps was changed from seconds since the epoch
to microseconds since the epoch:
http://trac.edgewall.org/wiki/TracDev/ApiChanges/0.12#Timestampstorageindatabase

See this patch that changed it in Trac:

http://trac.edgewall.org/attachment/ticket/6466/6466-microsecond-times-r8770.patch

If you try to run the existing migrate_from_trac.rake script, the year will be thousands
of years in the future, and the importer will populate the date in redmine is 0000000000.
This causes many things to break.
The problem still exists with the trunk version of the migrate_from_trac.rake script.

In #882 , the user encountered the problem, but went down the wrong path with the fix,
because he didn't understand why timestamps were being imported incorrectly.

I am submitting a better fix, which detects the database version of Trac. If the database
version is > 22, then every time a timestamp from Trac is encountered, we divide by 1 million.

This patch is against trunk.
I have used this patch successfully and it fixes all my problems importing from Trac.

I think many people are hitting these issues when doing Trac -> Redmine migrations. Here are some example tickets:

#5764
#8690
#12477


Files

migrate_from_trac.rake.patch.txt (5.31 KB) migrate_from_trac.rake.patch.txt Craig Rodrigues, 2013-07-29 16:41

Related issues

Related to Redmine - Patch #5764: migrate_from_trac does not support trac 0.12New2010-06-27

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Related to Redmine - Defect #8690: User can't be displayedNeeds feedback2011-06-27

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Related to Redmine - Defect #12477: Internal server error after migrate from Trac 0.12.3 ro Redmine 2Needs feedback

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Related to Redmine - Defect #14590: migrate_from_trac.rake does not import Trac users, uses too short passwordClosedJean-Philippe Lang

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Related to Redmine - Patch #14592: migrate_from_trac.rake does not properly parse First Name and Last NameClosed

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Related to Redmine - Patch #14593: migrate_from_trac.rake, print out validation errors when doing saveNew

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Related to Redmine - Defect #14844: migrate_from_trac is not run in database transactionNew

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Related to Redmine - Defect #6868: migrate_from_trac and trac 0.12Reopened2010-11-11

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Related to Redmine - Defect #10738: trac import issueNew

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Related to Redmine - Defect #20943: migrate_from_trac.rake dont workResolved

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Has duplicate Redmine - Defect #14845: Error in user controllerClosed

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Has duplicate Redmine - Defect #17898: Exception in Migration from Trac to Redmine (incl. solution)Closed

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