Thanks so much Pat for the response and clarifying exactly what you did. I
understood the code you wrote and I can't believe I wasn't able to piece
that together!
Quick question:
:with => {:geodist => 0.0..200_000.0},
The 200km is equivalent to 124.274 miles. However for the search it is
pulling from a smaller range than that. It seems like from a 20 mile radius
only.
As I am doing a search with zip code 30052, however it is only returning
two locations that are near each other. A third location should be
appearing also that's 50 miles away.
On Tuesday, January 21, 2014 6:26:26 PM UTC-5, Pat Allan wrote:
>
> So, it seems this is the action that needs changing:
>
> @latitude = params[:latitude].to_f * Math::PI / 180
> @longitude = params[:longitude].to_f * Math::PI / 180
> @users = Location.search :geo => [@latitude * Math::PI / 180,
> @longitude * Math::PI / 180], :with => {:geodist => 0.0..200_000.0}, :order
> => "geodist ASC"
>
> I would switch it to:
>
> latitude = params[:latitude].to_f * Math::PI / 180
> longitude = params[:longitude].to_f * Math::PI / 180
>
> location_ids = Location.search_for_ids(
> :geo => [latitude, longitude],
> :with => {:geodist => 0.0..200_000.0},
> :order => "geodist ASC”
> )
> @users = User.where(:location_id => location_ids)
>
> Note the following:
> * I’ve removed the double radians conversion
> * I’m using the search_for_ids method to avoid instantiating unnecessary
> location objects.
> * Instance variables are only useful for objects used in the views, so
> I’ve made a presumption and just set @users, everything else is a local
> variable instead.
>
> If all you want is the user to enter their zip code for the search, then
> it would be more like this:
>
> location = Location.find_by_zipcode params[:zipcode]
> # if lat/lng are stored as degrees
> latitude = location.latitude * Math::PI / 180
> longitude = location.longitude * Math::PI / 180
>
> location_ids = Location.search_for_ids(
> :geo => [latitude, longitude],
> :with => {:geodist => 0.0..200_000.0},
> :order => "geodist ASC”
> )
> @users = User.where(:location_id => location_ids)
>
> Hope this helps!
>
> —
> Pat
>
> On 22 Jan 2014, at 6:09 am, C Wilson <[email protected] <javascript:>>
> wrote:
>
> > Hey Pat, you assisted me with the radians/degrees issue. I was looking
> for a clearer idea than what Nicholas suggested for the part I needed
> advice on.
> >
> > I have TS setup to find locations based on latitude/longitude that are
> near one another. This part functions as expected.
> >
> > The next step that I am not clear on is how to setup so that if I
> perform a location search using a zip code from the Locations table to have
> it return users who are within the specified distance.
> >
> > I am building a app so users can find nearby users using their zip code.
> I want users to enter any zip code and it will return users within 200km.
> >
> > I am not sure if there is more required from me in the searches
> controller that will make the search perform how I would like when users a
> zip code within the search box.
> >
> >
> > Location.search :geo => [33.89 * Math::PI / 180, -83.95 * Math::PI /
> 180], :with => {:geodist => 0.0..200_000.0}, :order => "geodist ASC"
> > Sphinx Query (338.5ms) SELECT GEODIST(0.5914920835008783,
> -1.4652039070492398, latitude, longitude) AS geodist, * FROM
> `location_core` WHERE `geodist` BETWEEN 0.0 AND 200000.0 AND
> `sphinx_deleted` = 0 ORDER BY `geodist` ASC LIMIT 0, 20
> > Sphinx Found 983 results
> > Location Load (0.5ms) SELECT `locations`.* FROM `locations` WHERE
> `locations`.`id` IN (12828, 12848, 12882, 12851, 12852, 12853, 12854,
> 12855, 12859, 12830, 12856, 12857, 12822, 12834, 12836, 12838, 12898,
> 12899, 12900, 12901)
> > => [#<Location id: 12828, zipcode: "30017", city: "Grayson", state:
> "GA", latitude: 33.89, longitude: -83.95, created_at: nil, updated_at:
> nil>, #<Location id: 12848, zipcode: "30039", city: "Snellville", state:
> "GA", latitude: 33.85, longitude: -84.0, created_at: nil, updated_at: nil>,
> #<Location id: 12882, zipcode: "30078", city: "Snellville", state: "GA",
> latitude: 33.85, longitude: -84.0, created_at: nil, updated_at: nil>,
> #<Location id: 12851, zipcode: "30042", city: "Lawrenceville", state: "GA",
> latitude: 33.94, longitude: -83.99, created_at: nil, updated_at: nil>,
> #<Location id: 12852, zipcode: "30043", city: "Lawrenceville", state: "GA",
> latitude: 33.94, longitude: -83.99, created_at: nil, updated_at: nil>,
> #<Location id: 12853, zipcode: "30044", city: "Lawrenceville", state: "GA",
> latitude: 33.94, longitude: -83.99, created_at: nil, updated_at: nil>,
> #<Location id: 12854, zipcode: "30045", city: "Lawrenceville", state: "GA",
> latitude: 33.94, longitude: -83.99, created_at: nil, updated_at: nil>,
> #<Location id: 12855, zipcode: "30046", city: "Lawrenceville", state: "GA",
> latitude: 33.94, longitude: -83.99, created_at: nil, updated_at: nil>,
> #<Location id: 12859, zipcode: "30052", city: "Loganville", state: "GA",
> latitude: 33.83, longitude: -83.89, created_at: nil, updated_at: nil>,
> #<Location id: 12830, zipcode: "30019", city: "Dacula", state: "GA",
> latitude: 33.98, longitude: -83.88, created_at: nil, updated_at: nil>,
> #<Location id: 12856, zipcode: "30047", city: "Lilburn", state: "GA",
> latitude: 33.88, longitude: -84.13, created_at: nil, updated_at: nil>,
> #<Location id: 12857, zipcode: "30048", city: "Lilburn", state: "GA",
> latitude: 33.88, longitude: -84.13, created_at: nil, updated_at: nil>,
> #<Location id: 12822, zipcode: "30011", city: "Auburn", state: "GA",
> latitude: 34.01, longitude: -83.83, created_at: nil, updated_at: nil>,
> #<Location id: 12834, zipcode: "30024", city: "Suwanee", state: "GA",
> latitude: 34.05, longitude: -84.07, created_at: nil, updated_at: nil>,
> #<Location id: 12836, zipcode: "30026", city: "North Metro", state: "GA",
> latitude: 34.0, longitude: -84.15, created_at: nil, updated_at: nil>,
> #<Location id: 12838, zipcode: "30029", city: "North Metro", state: "GA",
> latitude: 34.0, longitude: -84.15, created_at: nil, updated_at: nil>,
> #<Location id: 12898, zipcode: "30095", city: "Duluth", state: "GA",
> latitude: 34.0, longitude: -84.15, created_at: nil, updated_at: nil>,
> #<Location id: 12899, zipcode: "30096", city: "Duluth", state: "GA",
> latitude: 34.0, longitude: -84.15, created_at: nil, updated_at: nil>,
> #<Location id: 12900, zipcode: "30097", city: "Duluth", state: "GA",
> latitude: 34.0, longitude: -84.15, created_at: nil, updated_at: nil>,
> #<Location id: 12901, zipcode: "30098", city: "Duluth", state: "GA",
> latitude: 34.0, longitude: -84.15, created_at: nil, updated_at: nil>]
> >
> >
> > user = User.first
> > User Load (0.3ms) SELECT `users`.* FROM `users` ORDER BY `users`.`id`
> ASC LIMIT 1
> > => #<User id: 1, email: "[email protected] <javascript:>",
> password_digest: "$2a$10$OuN0/fqWzy4ZTyIf4y94teIdnndAqwS.1V5zxgO9X7wW...",
> zip_code: "30052", birthday: "1986-08-25", name: nil, username: "admin",
> gender: "Male", ethnicity: nil, sexuality: "Straight", career: nil,
> education: nil, religion: nil, politics: nil, children: nil, height: nil,
> user_smoke: nil, user_drink: nil, about_me: nil, inches: nil, feet: nil,
> created_at: "2014-01-16 14:17:36", updated_at: "2014-01-16 14:17:36",
> auth_token: "8Zwh3HF6WnA8wthFZirkQw", password_reset_token: nil,
> password_reset_sent_at: nil, admin: nil, role: "admin", roles_mask: nil,
> age: nil, default_photo_id: nil, location_id: nil, time_zone: nil>
> > 2.0.0-p353 :004 > user.location
> > (15.4ms) SELECT COUNT(*) FROM `locations` WHERE (zipcode = '30052')
> > Location Load (6.8ms) SELECT `locations`.* FROM `locations` WHERE
> (zipcode = '30052') ORDER BY `locations`.`id` ASC LIMIT 1
> > => #<Location id: 12859, zipcode: "30052", city: "Loganville", state:
> "GA", latitude: 33.83, longitude: -83.89, created_at: nil, updated_at: nil>
>
> >
> >
> > Location columns:
> >
> > t.string :zipcode
> > t.string :city
> > t.string :state
> > t.float :latitude
> > t.float :longitude
> >
> > User columns:
> > t.string :email
> > t.string :password_digest
> > t.string :zip_code
> > t.string :location_id
> > t.string :time_zone
> > t.string :birthday
> > t.string :name
> > t.string :username
> > t.string :gender
> > t.string :ethnicity
> > t.string :sexuality
> > t.string :career
> > t.string :education
> > t.string :religion
> > t.string :politics
> > t.string :children
> > t.string :height
> > t.string :user_smoke
> > t.string :user_drink
> > t.string :about_me
> > t.string :inches
> > t.string :feet
> >
> >
> > class DistanceController < ApplicationController
> > def search
> > @latitude = params[:latitude].to_f * Math::PI / 180
> > @longitude = params[:longitude].to_f * Math::PI / 180
> > @users = Location.search :geo => [@latitude * Math::PI / 180,
> @longitude * Math::PI / 180], :with => {:geodist => 0.0..200_000.0}, :order
> => "geodist ASC"
> > end
> >
> > def users
> > @users = User.all
> > end
> >
> > def index
> > @users = User.all
> > end
> > end
> >
> >
> > ThinkingSphinx::Index.define :location, :with => :active_record do
> > indexes city
> >
> > has "RADIANS(locations.latitude)", :as => :latitude, :type => :float
> > has "RADIANS(locations.longitude)", :as => :longitude, :type => :float
> > end
> > ThinkingSphinx::Index.define :user, :with => :active_record do
> > indexes name, :as => :user, :sortable => true
> > indexes zip_code
> > has created_at, updated_at
> > has location.id, :as => :location_id
> > end
> >
> >
> > <%= form_tag searches_path, method: :get do %>
> > <p>
> > <%= text_field_tag :search, params[:search] %>
> > <%= button_tag "Search", name: nil %>
> > </p>
> > <% end %>
> >
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