111 lines
2.3 KiB
Ruby
111 lines
2.3 KiB
Ruby
# == Schema Information
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#
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# Table name: geo_areas
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#
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# id :bigint not null, primary key
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# geometry :jsonb
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# properties :jsonb
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# source :string
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# created_at :datetime
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# updated_at :datetime
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# champ_id :bigint
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# geo_reference_id :string
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#
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class GeoArea < ApplicationRecord
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belongs_to :champ, optional: false
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store :properties, accessors: [
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:description,
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:surface_intersection,
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:surface_parcelle,
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:numero,
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:feuille,
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:section,
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:code_dep,
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:nom_com,
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:code_com,
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:code_arr,
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:code,
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:nom,
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:commune,
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:culture,
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:code_culture,
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:surface,
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:bio
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]
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enum source: {
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cadastre: 'cadastre',
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selection_utilisateur: 'selection_utilisateur'
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}
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scope :selections_utilisateur, -> { where(source: sources.fetch(:selection_utilisateur)) }
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scope :cadastres, -> { where(source: sources.fetch(:cadastre)) }
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validates :geometry, geo_json: true, allow_blank: false
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def to_feature
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{
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type: 'Feature',
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geometry: safe_geometry,
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properties: properties.symbolize_keys.merge(
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source: source,
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area: area,
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length: length,
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id: id,
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champ_id: champ.stable_id,
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dossier_id: champ.dossier_id
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).compact
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}
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end
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def safe_geometry
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RGeo::GeoJSON.encode(rgeo_geometry)
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end
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def rgeo_geometry
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RGeo::GeoJSON.decode(geometry.to_json, geo_factory: RGeo::Geographic.simple_mercator_factory)
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rescue RGeo::Error::InvalidGeometry
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nil
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end
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def self.from_feature_collection(feature_collection)
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feature_collection[:features].map do |feature|
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GeoArea.new(
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source: feature[:properties].delete(:source),
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properties: feature[:properties],
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geometry: feature[:geometry]
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)
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end
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end
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def area
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if polygon?
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GeojsonService.area(geometry.deep_symbolize_keys).round(1)
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end
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end
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def length
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if line?
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GeojsonService.length(geometry.deep_symbolize_keys).round(1)
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end
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end
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def location
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if point?
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Geo::Coord.new(*rgeo_geometry.coordinates.reverse).to_s
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end
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end
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def line?
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geometry['type'] == 'LineString'
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end
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def polygon?
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geometry['type'] == 'Polygon'
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end
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def point?
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geometry['type'] == 'Point'
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end
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end
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