Module: Ropenlayer::ActsAs::Mapper

Defined in:
lib/ropenlayer/acts_as/mapper.rb

Overview

acts_as_map: give to the model map construiction and build facilities.

class Team < ActiveRecord::Base
  acts_as_map :default_layer => :google_streets
end

Avalaible options:

- :longitude, :latitude, :zoom : Default starting values for map. Can be a float (latitude, longitude) or integer (zoom) object, so values will be parsed as them are. 
                                 A Symbol, in this case, ropenlayer will send :symbol method to mapper instance, or a valid Proc object
- :default_layer: Default layer for visualization. For avalaible layers see Ropenlayer::Openlayer::Map 
- :nodes: Relations which can be pointed on the map. Relations are expected to have acts_as_localizable_on behaviour in their class

Examples

Build a Map with static features, just for localization

class Team < ActiveRecord::Base
  acts_as_map :default_layer => :google_streets, :latitude => 40000.23, :longitude => 54555.233, :zoom => 3
end

Build a Map with Proc calls to perform automatic localization on forms

class Team < ActiveRecord

  has_many :offices
  has_one :main_office, :conditions => { :main => true }

  acts_as_map :default_layer => :google_streets, :longitude => :main_office_longitude, :latitude => :main_office_latitude, :zoom => :main_office_zoom
              :nodes         => [ :offices ]

  def main_office_longitude
      main_office.longitude
  end

  def main_office_longitude=(value)
    main_office_longitude = value
  end

  def main_office_latitude
      main_office.latitude
  end

  def main_office_latitude=(value)
    main_office.latitude = value
  end

  def main_office_longitude
      main_office.longitude
  end

  def main_office_zoom=(value)
    main_office.zoom = value
  end

end

Defined Under Namespace

Modules: InstanceMethods

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/ropenlayer/acts_as/mapper.rb', line 64

def included(base)
   
   base.class_eval do 
     
     base.send :include, InstanceMethods
     
     localizable = [:longitude, :latitude, :zoom ].inject(true) do |all_positions, position|
       all_positions = false unless self.ropenlayer_mapper_config[position].is_a?(Symbol) and self.attribute_method?(self.ropenlayer_mapper_config[position])
       all_positions
     end
                 
     send("class_variable_set", "@@localizable", true) if localizable
   
   end
end