CODEWITHSUNDEEP
javascriptruby-on-railsgoogle-mapsgeolocation
ValeriiVasin
ValeriiVasin

Reputation: 8706

Detect nearby using google maps

I have a list of companies with addresses, and user, that send claims (also set their own location).

And I need to send email only for that companies which are in 20 miles near the user. How can I do that?

Upvotes: 0

Views: 122

Answers (1)

Allyl Isocyanate
Allyl Isocyanate

Reputation: 13616

Not sure why you want to use Google Maps, since you are sending emails and not displaying locations on the map, right?

I think your best answer is to convert the addresses into latitude and longitude using a geocode service, and then throw them into Mongo or other DB that supports geospatial indexing.

So in Mongo DB after geocoding, you need to convert each address into something like:

{email: '[email protected]', address: 'address', loc : { lon : 40.739037, lat: 73.992964 } }

After that you can query the DB to pull out emails for the user, in Mongo it would be something like:

db.emails.find( { loc : { $near : [50,50] } } ).limit(20)

https://developers.google.com/maps/documentation/geocoding/

http://www.mongodb.org/display/DOCS/Geospatial+Indexing

Upvotes: 1

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