class GeoArea < ApplicationRecord belongs_to :champ store :properties, accessors: [ :surface_intersection, :surface_parcelle, :numero, :feuille, :section, :code_dep, :nom_com, :code_com, :code_arr, :code, :nom, :commune, :culture, :code_culture, :surface, :bio ] enum source: { quartier_prioritaire: 'quartier_prioritaire', cadastre: 'cadastre', parcelle_agricole: 'parcelle_agricole', selection_utilisateur: 'selection_utilisateur' } scope :selections_utilisateur, -> { where(source: sources.fetch(:selection_utilisateur)) } scope :quartiers_prioritaires, -> { where(source: sources.fetch(:quartier_prioritaire)) } scope :cadastres, -> { where(source: sources.fetch(:cadastre)) } scope :parcelles_agricoles, -> { where(source: sources.fetch(:parcelle_agricole)) } def to_feature { type: 'Feature', geometry: geometry, properties: properties.merge(source: source, area: area, length: length).compact } end def rgeo_geometry RGeo::GeoJSON.decode(geometry.to_json, geo_factory: RGeo::Geographic.simple_mercator_factory) end def self.from_feature_collection(feature_collection) feature_collection[:features].map do |feature| GeoArea.new( source: feature[:properties].delete(:source), properties: feature[:properties], geometry: feature[:geometry] ) end end def area if polygon? && RGeo::Geos.supported? rgeo_geometry.area.round(1) end end def length if line? && RGeo::Geos.supported? rgeo_geometry.length.round(1) end end def location if point? Geo::Coord.new(*rgeo_geometry.coordinates).to_s end end def line? geometry['type'] == 'LineString' end def polygon? geometry['type'] == 'Polygon' end def point? geometry['type'] == 'Point' end end