[Tagging] Short-term parking zones

marc marc marc_marc_irc at hotmail.com
Tue Jan 16 11:10:25 UTC 2018


we probably need to work on "default values".
but no one seems motivated to work on the proposal.

Le 16. 01. 18 à 11:52, Matej Lieskovský a écrit :
> Ok, once again: I am sorry for even mentioning something that is 
> actually documented on the wiki. I've since then thought about the data 
> model and I can see how problematic it would be. Can we please move on 
> to finding a solution?
> 
> On 16 January 2018 at 09:25, Simone Saviolo <simone.saviolo at gmail.com 
> <mailto:simone.saviolo at gmail.com>> wrote:
> 
>     2018-01-15 11:07 GMT+01:00 Martin Koppenhoefer
>     <dieterdreist at gmail.com <mailto:dieterdreist at gmail.com>>:
> 
>         > On 14. Jan 2018, at 12:32, Matej Lieskovský <lieskovsky.matej at gmail.com <mailto:lieskovsky.matej at gmail.com>>
>         wrote:
>         >
>         > If you create a single empty relation with the details of the parking zone rules,
>         > you can then tag every road with the id of the relation.
>         > It is basically a way of flipping the relation system around,
> 
>         problem is with the following mappers, how would they find out
>         there is such a relation and that they should add it to the road
>         they newly added? If this kind of mapping started to become more
>         established I imagine people would spend a lot of time looking
>         for those empty relations with the tags?
> 
> 
>     Not to mention that it would make for very poor data quality. It
>     would establish a user-maintained (or rather, to-be-maintained)
>     relationship between data; it would go over the software's head, and
>     the database wouldn't know the least bit about it. From a practical
>     point of view, when would an empty relation be downloaded? Never, if
>     it has no members: which means that mappers would generally be
>     anaware that such a thing even exists.
> 
>     In conclusion, you're suggesting a method that the machine couldn't
>     help us with, and that mappers would have a very hard time (if not
>     impossible) using correctly.
> 
>     Regards,
> 
>     Simone


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