Module: Ohm::Geoindex

Defined in:
lib/ohm/geoindex.rb

Defined Under Namespace

Modules: ClassMethods

Constant Summary collapse

VERSION = 
"0.0.3"

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(model) ⇒ Object 



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# File 'lib/ohm/geoindex.rb', line 7

def self.included(model)
  begin
    Ohm.redis.call!('GEOADD')
  rescue RuntimeError => e
    raise "This version of Redis (#{Ohm.redis.url}) does not support the geospatial API." if e.message =~ /unknown command/
  end

  model.extend(ClassMethods)
end

Instance Method Details

#delete ⇒ Object 



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# File 'lib/ohm/geoindex.rb', line 28

def delete
  redis.call('ZREM', self.class.key[:geoindex], self.id)
  super
end

#save ⇒ Object 



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# File 'lib/ohm/geoindex.rb', line 17

def save
  super
  redis.queue('MULTI')
  redis.queue('ZREM', self.class.key[:geoindex], self.id)
  coordinates = self.class.instance_variable_get('@geoindex').map { |d| attributes[d] }
  redis.queue('GEOADD', self.class.key[:geoindex], *coordinates, self.id)
  redis.queue('EXEC')
  redis.commit
  self
end