From 5d6d3c7d7cc06db68f329b8a03fb243b145609ac Mon Sep 17 00:00:00 2001
From: Alex Reisner <alex@alexreisner.com>
Date: Sun, 24 May 2009 12:50:56 -0400
Subject: [PATCH] Add .near class method to including class.
---
lib/geocoder.rb | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/lib/geocoder.rb b/lib/geocoder.rb
index 7cabb49d..90c4d4e8 100644
--- a/lib/geocoder.rb
+++ b/lib/geocoder.rb
@@ -10,6 +10,7 @@ module Geocoder
# Implementation of 'included' hook method.
#
def self.included(base)
+ base.extend ClassMethods
base.class_eval do
# named scope: geocoded objects
@@ -43,6 +44,26 @@ module Geocoder
coords.split(',')[0...2].reverse.map{ |i| i.to_f }
end
+ ##
+ # Methods which will be class methods of the including class.
+ #
+ module ClassMethods
+
+ ##
+ # Find all ads within a radius (in miles) of the given location (string).
+ #
+ def near(location, radius = 100, options = {})
+ latitude, longitude = Geocoder.fetch_coordinates(location)
+ return [] unless (latitude and longitude)
+ # don't pass :table_name option to nearby_mysql_query
+ table_name = options[:table_name] || self.to_s.tableize
+ options.delete :table_name
+ query = Geocoder.nearby_mysql_query(table_name,
+ latitude, longitude, radius.to_i, options)
+ find_by_sql(query)
+ end
+ end
+
##
# Calculate the distance from the object to a point (lat,lon). Valid units
# are defined in <tt>distance_between</tt> class method.
--
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