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# File 'lib/spatial_features/has_spatial_features.rb', line 4
def has_spatial_features(options = {})
unless acts_like?(:spatial_features)
class_attribute :spatial_features_options
self.spatial_features_options = {:make_valid => true}
extend ClassMethods
include InstanceMethods
include FeatureImport
has_many :features, lambda { extending FeaturesAssociationExtensions }, :as => :spatial_model, :dependent => :delete_all
has_one :aggregate_feature, lambda { extending FeaturesAssociationExtensions }, :as => :spatial_model, :dependent => :delete
scope :with_features, lambda { joins(:features).uniq }
scope :without_features, lambda { joins("LEFT OUTER JOIN features ON features.spatial_model_type = '#{Utils.base_class(name)}' AND features.spatial_model_id = #{table_name}.id").where("features.id IS NULL") }
scope :include_bounds, lambda { SQLHelpers.append_select(joins(:aggregate_feature), :north, :east, :south, :west) }
scope :include_area, lambda { SQLHelpers.append_select(joins(:aggregate_feature), :area) }
scope :with_spatial_cache, lambda {|klass| joins(:spatial_caches).where(:spatial_caches => { :intersection_model_type => Utils.class_name_with_ancestors(klass) }).uniq }
scope :without_spatial_cache, lambda {|klass| joins("LEFT OUTER JOIN #{SpatialCache.table_name} ON #{SpatialCache.table_name}.spatial_model_id = #{table_name}.id AND #{SpatialCache.table_name}.spatial_model_type = '#{Utils.base_class(name)}' and intersection_model_type IN ('#{Utils.class_name_with_ancestors(klass).join("','") }')").where("#{SpatialCache.table_name}.spatial_model_id IS NULL") }
scope :with_stale_spatial_cache, lambda { joins(:spatial_caches).where("#{table_name}.features_hash != spatial_caches.features_hash").uniq } if has_spatial_features_hash?
has_many :spatial_caches, :as => :spatial_model, :dependent => :delete_all, :class_name => 'SpatialCache'
has_many :model_a_spatial_proximities, :as => :model_a, :class_name => 'SpatialProximity', :dependent => :delete_all
has_many :model_b_spatial_proximities, :as => :model_b, :class_name => 'SpatialProximity', :dependent => :delete_all
delegate :has_spatial_features_hash?, :has_features_area?, :to => self
end
self.spatial_features_options = self.spatial_features_options.merge(options)
end
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