[OSM-dev] [OSM-talk] Trouble in Rangoon
bvh-osm at irule.be
Thu Feb 28 13:21:36 GMT 2008
On Thu, Feb 28, 2008 at 02:44:06PM +0100, Frederik Ramm wrote:
> The only thing I'd ask of editors is to support "create_changeset"
> and then use the ID returned on subsequent edits. This, I believe, is
> a small price to pay for the grouping advantages we would get.
> Automatically creating one changeset for every single change would be
> an option for a changeover time but not really desirable.
How would it deal with conflicts? Ie with the following timeline of calls
node a is initially at state a0
- user X create_changeset 1
- user X change node a to state a1
- user Y create_changeset 2
- user Y change node a to state a2
- user Y close_changeset 2
- user X change node a to state a3
- user X close_changeset 1
Now revert changeset 2.
To what state should node a revert? a0, a1, or a3?
And this is even a 'simple' case. But imagine much more complex scenarios
where user Y is actually changing a turn restriction while user
X is changing the direction of one of the ways that is part of said
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