You are right. Please check again. On Monday, 9 December 2013 17:16:17 UTC-6, User wrote: > > Thanks, on line 2987 I believe the format string is missing the 3rd '%s' > parameter: > > return 'ST_DWithin(%s,%s)' %(self.expand(first), > self.expand(second, first.type), > self.expand(third, 'double')) > > Should be: > > return 'ST_DWithin(%s,%s,%s)' %(self.expand(first), > self.expand(second, first.type), > self.expand(third, 'double')) > > > On Monday, December 9, 2013 6:06:32 PM UTC-5, Massimo Di Pierro wrote: > >> Actually you do understand a lot of about this. That's a trick. It works. >> We can use it in this case too, until we come up with a better design. >> I used the same trick as in REPLACE, in trunk. Please give it a try. >> >> Massimo >> >> >> On Monday, 9 December 2013 16:33:09 UTC-6, User wrote: >>> >>> Forgive me because I don't understand anything about the internals of >>> web2py but doesn't REPLACE take three parameters: >>> >>> def REPLACE(self, first, (second, third)): >>> return 'REPLACE(%s,%s,%s)' % (self.expand(first,'string'), >>> self.expand(second,'string'), >>> self.expand(third,'string')) >>> >>> >>> >>> Also: >>> >>> def ST_ASGEOJSON(self, first, second): >>> """ >>> http://postgis.org/docs/ST_AsGeoJSON.html >>> """ >>> return 'ST_AsGeoJSON(%s,%s,%s,%s)' %(second['version'], >>> self.expand(first), second['precision'], second['options']) >>> >>> >>> >>> Or do you mean something different? >>> >>> >>> On Monday, December 9, 2013 4:45:27 PM UTC-5, Massimo Di Pierro wrote: >>> >>>> OK. This needs more work than anticipated. Looks like the Query object >>>> only supports unary and binary operators. Give me a little more time. ;-) >>>> >>>> On Monday, 9 December 2013 12:21:37 UTC-6, User wrote: >>>>> >>>>> Thanks. This is what I see at line 2983 in dal.py: >>>>> >>>>> def ST_DWITHIN(self, first, second): >>>>> """ >>>>> http://postgis.org/docs/ST_Within.html >>>>> """ >>>>> return 'ST_DWithin(%s,%s)' %(self.expand(first), >>>>> self.expand(second, first.type)) >>>>> >>>>> >>>>> The proper documentation is at http://postgis.org/docs/ST_DWithin.html >>>>> (note >>>>> the 'D'). Also looks like this is missing the 3rd argument to ST_DWithin: >>>>> >>>>> boolean *ST_DWithin*(geometry g1, geometry g2, double precision >>>>> distance_of_srid); >>>>> >>>>> >>>>> On Sunday, December 8, 2013 9:25:35 AM UTC-5, Massimo Di Pierro wrote: >>>>> >>>>>> Added ST_Dwithin support in trunk. Please check it. >>>>>> >>>>>> On Sunday, 8 December 2013 07:02:06 UTC-6, User wrote: >>>>>>> >>>>>>> I'm storing latitude/longitude coordinates in a geometry field >>>>>>> (using PostgreSQL 9.1.10): >>>>>>> >>>>>>> Field('point', 'geometry()') >>>>>>> >>>>>>> I understand there is also the geography type but from my reading >>>>>>> geometry is faster and is suitable for small distances ( >>>>>>> http://workshops.boundlessgeo.com/postgis-intro/geography.html#why-not-use-geography >>>>>>> ) >>>>>>> >>>>>>> I want users to be able to specify a reference point and search for >>>>>>> all records within X distance from the reference point. Using raw SQL >>>>>>> I >>>>>>> would use >>>>>>> ST_DWithin<http://postgis.refractions.net/docs/ST_DWithin.html> doing >>>>>>> something like >>>>>>> >>>>>>> SELECT name, ST_AsText(point) >>>>>>> FROM mytable >>>>>>> WHERE ST_DWithin(point, ST_GeomFromText('POINT(40.47112 >>>>>>> -76.33)',4326), 0.1) >>>>>>> >>>>>>> But web2py does not seem to support ST_DWithin only st_within. So >>>>>>> how can I achieve a similar result in web2py? >>>>>>> >>>>>>>
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