13 lines
383 B
Ruby
13 lines
383 B
Ruby
class Hydrant < ActiveRecord::Base
|
|
belongs_to :user
|
|
|
|
def self.find_closest(lat, lng, limit=100)
|
|
Hydrant.find_by_sql(["SELECT *, (3959 * ACOS(COS(RADIANS(?)) * COS(RADIANS(lat)) * COS(radians(lng) - RADIANS(?)) + SIN(RADIANS(?)) * SIN(RADIANS(lat)))) AS distance FROM hydrants ORDER BY distance LIMIT ?", lat, lng, lat, limit])
|
|
end
|
|
|
|
def adopted?
|
|
!user.nil?
|
|
end
|
|
|
|
end
|