[Photon] Q: can photon search on tags? Can I add it?

Wed Jan 21 23:18:49 UTC 2015

I released a new version some days ago that fixed that problem, we are now working with version 0.2. See readme on https://github.com/komoot/photon <https://github.com/komoot/photon>

If you don’t want to download the data again, you can also have a look on this comment: https://github.com/komoot/photon/issues/130#issuecomment-68051033 <https://github.com/komoot/photon/issues/130#issuecomment-68051033>

Cheers

> Am 21.01.2015 um 23:23 schrieb Sachin Dole <sdole at genvega.com>:
> 
> the error that I get is:
> [qtp849189535-58] ERROR spark.webserver.MatcherFilter -
> org.elasticsearch.indices.IndexMissingException: [photon] missing
>         at org.elasticsearch.cluster.metadata.MetaData.convertFromWildcards(MetaData.java:771)
> 
> On Wed, Jan 21, 2015 at 3:33 PM, Sachin Dole <sdole at genvega.com <mailto:sdole at genvega.com>> wrote:
> hello, I followed instructions on README file to download the jar file, the index, uncompressed the index and ran photon with java -jar photon-0.1.2.jar inside from the photon_data directory. Server starts up in about 30 seconds. However, if I go to the test page http://localhost:2322/api?q=berlin <http://localhost:2322/api?q=berlin> I get a server error on line 67 in Searcher.java in the "execute" method.
> 
> SearchResponse response = client.prepareSearch("photon").setSearchType(SearchType.QUERY_AND_FETCH).setQuery(query).setSize(limit).setTimeout(TimeValue.timeValueSeconds(7)).execute().actionGet();
> What am I missing?
> 
> 
> On Mon, Jan 12, 2015 at 2:36 PM, Sachin Dole <sdole at genvega.com <mailto:sdole at genvega.com>> wrote:
> OK. I will look into this. I will need to start from scratch, so, it might take me a while to do this. I will report back with questions. Thank you Sander for the additional response 
> 
> On Jan 12, 2015 12:04 PM, "Christoph Lingg" <christoph at lingg.eu <mailto:christoph at lingg.eu>> wrote:
> Good point Sander. There are two approaches to filter results. I thought about importing all documents and filtering on query time, whilst Sander's approach avoids even importing those documents.
> 
> Cheers,
> Christoph
> 
>> Am 12.01.2015 um 18:56 schrieb Sander van Tulden <sander.vantulden at falk.nl <mailto:sander.vantulden at falk.nl>>:
>> 
>> Hi Sashin,
>> 
>> For my use case we needed to filter out all POIs and certain other tags. I made a solution for this (beware, it is pretty quick'n'dirty and could use some optimizations) for Photon. I use a json file with a tag->value whitelist, so the importing process only uses the tags of the json file for the index. You could take a look at this (closed) PR here: https://github.com/komoot/photon/pull/129 <https://github.com/komoot/photon/pull/129>
>> 
>> It might help you solve your use case,
>> 
>> Greets,
>> 
>> Sander van Tulden
>> 
>> 
>> Op 12 jan. 2015 om 18:46 heeft Sachin Dole <sdole at genvega.com <mailto:sdole at genvega.com>> het volgende geschreven:
>> 
>>> That is very nice of you not only to reply but also to add reg_name to index.
>>> 
>>> I have another q for you, please: how can I use photon to search with a filter on tags? For example, I know that my app is only interested in nodes, ways and relations that have the tag with key "tourism" or a combination of a few different tags. In this case, I would like to completely filter out Hawaii county from results, while, still showing Hawaii state and Hawaii airport and various beaches in Hawaii state.
>>> 
>>> Once again, I would love to roll up my sleeves and get my hands dirty if that's what it will need.
>>> 
>>> Thank you once again.
>>> 
>>> On Jan 12, 2015 11:22 AM, "Christoph Lingg" <christoph at lingg.eu <mailto:christoph at lingg.eu>> wrote:
>>> Hi Sachin,
>>> 
>>> thanks for your feedback. Photon searches in much more than name, also street country, housnumber, postcode and administrative levels. 
>>> 
>>> We are already including a bunch of name variants, like loc_name. 
>>> 
>>> Reg name is not used very often, see http://taginfo.openstreetmap.org/keys/reg_name <http://taginfo.openstreetmap.org/keys/reg_name>. Anyway, you were just writing at a moment when I was working on the importer, so I just  regional names to the photon index. see https://github.com/komoot/photon/commit/a8bc9b255ddffd47103172b579e47fd38c642786 <https://github.com/komoot/photon/commit/a8bc9b255ddffd47103172b579e47fd38c642786>
>>> 
>>> We are currently working on reimporting new data, if we are lucky we will have a new photon version by the end of this week. Keep the finger crossed.
>>> 
>>> Cheers,
>>> Christoph
>>> 
>>>> Am 12.01.2015 um 13:09 schrieb Sachin Dole <sdole at genvega.com <mailto:sdole at genvega.com>>:
>>>> 
>>>> Hello,
>>>> 
>>>> Can photon search on other tags than just name? For example, if you search for "Big Island", photon does not return the main island of United States state of Hawai'i. On nominatim, it returns correctly. In this case, the "name" of the relation is "Hawai'i" but "reg_name" is "Big Island" and nominatim search correctly. If photon currently does not allow for this, can I try to add this ability on a fork? I will have to start from scratch (create a new database etc), and I have no problem doing so if indeed it is needed. If it already exists, it will be great if you can show me an example on http://photon.komoot.de/ <http://photon.komoot.de/>
>>>> 
>>>> THANKS a lot!
>>>> 
>>>> Best,
>>>> Sachin Dole
>>>> 
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>>> 
>>> 
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