I have a model which belongs_to a "Location" model which contains a
latitude, longitude, and radius. This effectively forms a circular
area that this item covers on the map.
I'm attempting to filter my results by determining if the point passed
into my geo-search scope lies within my Model's 'Location' area that
it covers.
I attempted using:
:with => {"@geodist" => 0.0..loc.radius} before I realized that the
location that I'm passing in is a single point and has no radius.
Instead I need to do some math and figure out if say:
(myPoint.lat - locationModelInstance.lat)^2 + (myPoint.long -
locationModelInstance.long)^2 < locationModelInstance.radius
Am I able to do math somewhere inside of the sphinx scope? I see in
the documentation that :conditions expects a hash with key/value
pairs...
I want something like this (but obviously not using conditions b/c i
can't):
sphinx_scope(:falls_within_area) { |loc|
{ :geo => [loc.lat.to_radians, loc.lng.to_radians],
:conditions => { (loc.lat - location.lat)^2 + (loc.lng -
location.lng)^2 <= location.radius^2 },
:order => "@geodist ASC"
}
}
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