[OSM-dev] 0.6 API hack-a-thon Date

Shaun McDonald shaun at shaunmcdonald.me.uk
Thu Oct 16 08:07:07 BST 2008

On 15 Oct 2008, at 23:35, Brett Henderson wrote:

> On Wed, Oct 15, 2008 at 12:47 AM, Shaun McDonald <shaun at shaunmcdonald.me.uk 
> > wrote:
> On 14 Oct 2008, at 10:18, Brett Henderson wrote:
> Shaun McDonald wrote:
> [..]
> Ideally we need to have all the main editors and osm tools ready for  
> the 0.6 API transition by the time the 0.6 API goes live in  
> November. As things currently stand, you can use JOSM, with a clean  
> checkout of the api06 branch.
> Is there any test osm data in 0.6 format available?  Or do you have  
> to migrate a 0.5 database to 0.6?  I should knock over the remaining  
> osmosis changes to support 0.6.  Everything is done except for the  
> the mysql tasks which are arguably the most important because  
> they're used for changesets.
> The migrations are one of the things that need to be tested, they  
> currently work on an empty database. They also need to be updated  
> for duplicate keys in the tags of nodes, ways and relations.
> It would be excellent to have someone test the migration (especially  
> if they have history data). Also documenting the process of  
> upgrading a database from 0.5 to 0.6 when using osmosis.
> Okay, so it sounds like the short answer is that there's no  
> upgrading an already populated database so no easy way of building a  
> db with 0.6 data.

The migrations should work, though it is known that they break when  
there is duplicate keys in the tags of a particular node/way/relation.

> I'll get a 0.6 db and rails up and running locally and load some  
> data via the API (using JOSM and/or Potlatch)

JOSM is the only option at the moment as Potlatch and Merkator haven't  
been upgraded to 0.6 yet.
I have added a section on the wiki about how to use JOSM for API 0.6  

> to make sure the db is populated correctly.  I'll then get osmosis  
> running against it and make sure it aligns with API behaviour.  I  
> don't know how long that will take me yet but hopefully not more  
> than a week or so.  I won't promise to test migration at this point,  
> I may have my hands full with osmosis and changeset support.  On the  
> history data aspect, I don't have history data though but it may be  
> possible to get a small amount of history in a 0.5 db by using  
> osmosis to apply changesets to a mysql db for a few days.

Am I right in thinking that when you import the planet [extract] into  
mysql using osmosis it will populate the history tables for you, and  
with each changeset, will add to the history, updating the current  
tables? I've not yet had a need to use osmosis.

> http://svn.openstreetmap.org/applications/utils/planet.osm/perl/planetosm-to-db.pl 
>  will also need to be updated to 0.6, would anyone like to update  
> the script?
> Is this script still used much?  I was hoping I'd eliminated the  
> need for it but I guess people still like the simplicity of a perl  
> script.

Gah, seems I misread the Planet.osm wiki page, when I was looking for  
a tool to load the data in the database.

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