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Contents
# encoding: utf-8
module Mongoid #:nodoc:
module Criterion #:nodoc:
# WithinSpecial criterion is used when performing #within with symbols to get
# get a shorthand syntax for where clauses.
#
# @example Conversion of a simple to complex criterion.
# { :field => { "$within" => {'$center' => [20,30]} } }
# becomes:
# { :field.within(:center) => [20,30] }
class WithinSpacial < Complex
# Convert input to query for box, polygon, center, and centerSphere
#
# @example
# within = WithinSpacial.new(opts[:key] => 'point', :operator => 'center')
# within.to_mongo_query({:point => [20,30], :max => 5, :unit => :km}) #=>
#
# @param [Hash,Array] input Variable to conver to query
def to_mongo_query(input)
if ['box','polygon'].index(@operator)
input = input.values if input.kind_of?(Hash)
if input.respond_to?(:map)
input.map!{ |v| (v.respond_to?(:to_lng_lat)) ? v.to_lng_lat : v }
else
input
end
elsif ['center','centerSphere'].index(@operator)
if input.kind_of? Hash
if input[:point]
input[:point] = input[:point].to_lng_lat if input[:point].respond_to?(:to_lng_lat)
if input[:max]
unit = Mongoid::Spacial.earth_radius[input[:unit]]
input[:max] = input[:max]/unit if unit
input = [input[:point],input[:max]]
else
input = input[:point]
end
elsif RUBY_VERSION.to_f > 1.9
input = input.values
end
end
if input.kind_of? Array
input[0] = input[0].to_lng_lat if input[0].respond_to?(:to_lng_lat)
end
end
{'$within' => {"$#{@operator}"=>input} }
end
end
end
end
Version data entries
4 entries across 4 versions & 1 rubygems