Class: MapPLZ

Inherits:
Object
  • Object
show all
Defined in:
lib/mapplz.rb

Overview

MapPLZ datastore

Defined Under Namespace

Classes: GeoItem, MapPLZException

Constant Summary collapse

DATABASES = 
%w(array postgres postgresql postgis sqlite spatialite mongodb)

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(db = {}) ⇒ MapPLZ

Returns a new instance of MapPLZ.



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# File 'lib/mapplz.rb', line 14

def initialize(db = {})
  @db_type = 'array'
  @db_client = db
  @db = {
    client: @db_client,
    type: @db_type
  }
  @my_array = []

  @parser = SqlParser.new

  choose_db(ActiveRecord::Base.connection.adapter_name) if defined?(ActiveRecord)
end

Class Method Details

.flip_path(path) ⇒ Object 



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# File 'lib/mapplz.rb', line 308

def self.flip_path(path)
  path.map! do |pt|
    [pt[1].to_f, pt[0].to_f]
  end
end

.parse_wkt(geo_item, geom_string) ⇒ Object 



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# File 'lib/mapplz.rb', line 314

def self.parse_wkt(geo_item, geom_string)
  if geom_string.index('POINT')
    coordinates = geom_string.gsub('POINT', '').gsub('(', '').gsub(')', '').split(' ')
    geo_item[:lat] = coordinates[1].to_f
    geo_item[:lng] = coordinates[0].to_f
  elsif geom_string.index('LINESTRING')
    line_nodes = geom_string.gsub('LINESTRING', '').gsub('(', '').gsub(')', '').split(',')
    geo_item[:path] = line_nodes.map do |pt|
      pt = pt.split(' ')
      [pt[1].to_f, pt[0].to_f]
    end
  elsif geom_string.index('POLYGON')
    line_nodes = geom_string.gsub('POLYGON', '').gsub('(', '').gsub(')', '').split(', ')
    geo_item[:path] = line_nodes.map do |pt|
      pt = pt.split(' ')
      [pt[1].to_f, pt[0].to_f]
    end
  end
  geo_item
end

.standardize_geo(user_geo, lonlat = false, db = nil) ⇒ Object 



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# File 'lib/mapplz.rb', line 335

def self.standardize_geo(user_geo, lonlat = false, db = nil)
  return [user_geo] if user_geo.is_a?(GeoItem)
  geo_objects = []

  if user_geo.is_a?(File)
    file_type = File.extname(user_geo)
    if ['.csv', '.tsv', '.tdv', '.txt', '.geojson', '.json'].include?(file_type)
      # parse this as if it were sent as a string
      user_geo = user_geo.read
    else
      # convert this with ogr2ogr and parse as a string
      begin
        `ogr2ogr -f "GeoJSON" tmp.geojson #{File.path(user_geo)}`
        user_geo = File.open('tmp.geojson').read
      rescue
        raise 'gdal was not installed, or format was not accepted by ogr2ogr'
      end
    end
  end

  if user_geo.is_a?(String)
    begin
      user_geo = JSON.parse(user_geo)
    rescue
      # not JSON - attempt CSV
      begin
        CSV.parse(user_geo.gsub('\"', '""'), headers: true) do |row|
          geo_objects += standardize_geo(row, lonlat, db)
        end
        return geo_objects
      rescue
        # not JSON or CSV - attempt mapplz parse
        raise MapPLZException, 'call code() to parse mapplz language'
      end
    end
  end

  if user_geo.is_a?(Array) && user_geo.length > 0
    if user_geo[0].is_a?(Array) && user_geo[0].length > 0
      if user_geo[0][0].is_a?(Array) || (user_geo[0][0].is_a?(Hash) && user_geo[0][0].key?(:lat) && user_geo[0][0].key?(:lng))
        # lines and shapes
        user_geo.map! do |path|
          path_pts = []
          path.each do |path_pt|
            if lonlat
              lat = path_pt[1] || path_pt[:lat]
              lng = path_pt[0] || path_pt[:lng]
            else
              lat = path_pt[0] || path_pt[:lat]
              lng = path_pt[1] || path_pt[:lng]
            end
            path_pts << [lat, lng]
          end

          # polygon border repeats first point
          if path_pts[0] == path_pts.last
            geo_type = 'polygon'
            path_pts = [path_pts]
          else
            geo_type = 'polyline'
          end

          geoitem = GeoItem.new(db)
          geoitem[:path] = path_pts
          geoitem[:type] = geo_type
          geoitem
        end
        return user_geo
      end
    end

    # multiple objects being added? iterate through
    if user_geo[0].is_a?(Hash) || user_geo[0].is_a?(Array)
      user_geo.each do |geo_piece|
        geo_objects += standardize_geo(geo_piece, lonlat, db)
      end
      return geo_objects
    end

    # first two spots are a coordinate
    validate_lat = user_geo[0].to_f != 0 || user_geo[0].to_s == '0'
    validate_lng = user_geo[1].to_f != 0 || user_geo[1].to_s == '0'

    if validate_lat && validate_lng
      geo_object = GeoItem.new(db)
      geo_object[:type] = 'point'

      if lonlat
        geo_object[:lat] = user_geo[1].to_f
        geo_object[:lng] = user_geo[0].to_f
      else
        geo_object[:lat] = user_geo[0].to_f
        geo_object[:lng] = user_geo[1].to_f
      end
    else
      fail 'no latitude or longitude found'
    end

    # assume user properties are an ordered array of values known to the user
    user_properties = user_geo.drop(2)

    # only one property and it's a string? check for JSON hash
    if user_properties.length == 1 && user_properties[0].is_a?(String)
      begin
        user_properties[0] = JSON.parse(user_properties[0])
      rescue
      end
    end

    # only one property and it's a hash? it's a hash of properties
    if user_properties.length == 1 && user_properties[0].is_a?(Hash)
      user_properties[0].keys.each do |key|
        geo_object[key.to_sym] = user_properties[0][key]
      end
    else
      geo_object[:properties] = user_properties
    end

    geo_objects << geo_object

  elsif user_geo.is_a?(Hash) || user_geo.is_a?(CSV::Row)
    if user_geo.is_a?(CSV::Row)
      # convert CSV::Row to geo hash
      geo_hash = {}
      user_geo.headers.each do |header|
        geo_hash[header] = user_geo[header]
      end
      user_geo = geo_hash
    end

    # check for lat and lng
    validate_lat = false
    validate_lat = 'lat' if user_geo.key?('lat') || user_geo.key?(:lat)
    validate_lat ||= 'latitude' if user_geo.key?('latitude') || user_geo.key?(:latitude)

    validate_lng = false
    validate_lng = 'lng' if user_geo.key?('lng') || user_geo.key?(:lng)
    validate_lng ||= 'lon' if user_geo.key?('lon') || user_geo.key?(:lon)
    validate_lng ||= 'long' if user_geo.key?('long') || user_geo.key?(:long)
    validate_lng ||= 'longitude' if user_geo.key?('longitude') || user_geo.key?(:longitude)

    if validate_lat && validate_lng
      # single hash
      geo_object = GeoItem.new(db)
      geo_object[:lat] = user_geo[validate_lat].to_f
      geo_object[:lng] = user_geo[validate_lng].to_f
      geo_object[:type] = 'point'

      user_geo.keys.each do |key|
        next if key == validate_lat || key == validate_lng
        geo_object[key.to_sym] = user_geo[key]
      end
      geo_objects << geo_object
    elsif user_geo.key?('path') || user_geo.key?(:path)
      # try line or polygon
      path_pts = []
      path = user_geo['path'] if user_geo.key?('path')
      path = user_geo[:path] if user_geo.key?(:path)

      if path_pts[0].is_a?(Array) && path_pts[0][0].is_a?(Array)
        # ring polygon
        path.each do |ring|
          ring.map! do |path_pt|
            if lonlat
              lat = path_pt[1] || path_pt[:lat]
              lng = path_pt[0] || path_pt[:lng]
            else
              lat = path_pt[0] || path_pt[:lat]
              lng = path_pt[1] || path_pt[:lng]
            end
            [lat, lng]
          end
        end
        path_pts = path
      else
        path.each do |path_pt|
          if lonlat
            lat = path_pt[1] || path_pt[:lat]
            lng = path_pt[0] || path_pt[:lng]
          else
            lat = path_pt[0] || path_pt[:lat]
            lng = path_pt[1] || path_pt[:lng]
          end
          path_pts << [lat, lng]
        end

        # polygon border repeats first point
        if path_pts[0] == path_pts.last
          geo_type = 'polygon'
          path_pts = [path_pts]
        else
          geo_type = 'polyline'
        end
      end

      geoitem = GeoItem.new(db)
      geoitem[:path] = path_pts
      geoitem[:type] = geo_type

      property_list = user_geo.clone
      property_list = property_list[:properties] if property_list.key?(:properties)
      property_list = property_list['properties'] if property_list.key?('properties')
      property_list.delete(:path)
      property_list.keys.each do |prop|
        geoitem[prop.to_sym] = property_list[prop]
      end

      geo_objects << geoitem
    elsif user_geo.key?('geo') || user_geo.key?(:geo)
      # this key is GeoJSON or WKT
      geotext = (user_geo['geo'] || user_geo[:geo])
      if geotext.upcase.index('POINT(') || geotext.upcase.index('LINESTRING(') || geotext.upcase.index('POLYGON(')
        # try WKT
        geoitem = GeoItem.new(db)
        geoitem = MapPLZ.parse_wkt(geoitem, geotext)
      else
        # GeoJSON
        begin
          geoitem = standardize_geo(JSON.parse(geotext), lonlat, db)[0]
        rescue
          # did not recognize format
          raise 'did not recognize format in CSV geo column'
        end
      end
      user_geo.keys.each do |key|
        next if ['lat', 'lng', 'geo', 'geom', 'geojson', 'wkt', :lat, :lng, :geo, :geom, :geojson, :wkt].include?(key)
        geoitem[key.to_sym] = user_geo[key]
      end
      geo_objects << geoitem
    else
      # try GeoJSON
      if user_geo.key?(:type)
        user_geo['type'] = user_geo[:type] || ''
        user_geo['features'] = user_geo[:features] if user_geo.key?(:features)
        user_geo['properties'] = user_geo[:properties] || {}
        if user_geo.key?(:geometry)
          user_geo['geometry'] = user_geo[:geometry]
          user_geo['geometry']['type'] = user_geo[:geometry][:type]
          user_geo['geometry']['coordinates'] = user_geo[:geometry][:coordinates]
        end
      end
      if user_geo.key?('type')
        if user_geo['type'] == 'FeatureCollection' && user_geo.key?('features')
          # recursive onto features
          user_geo['features'].each do |feature|
            geo_objects += standardize_geo(feature, lonlat, db)
          end
        elsif user_geo.key?('geometry') && user_geo['geometry'].key?('coordinates')
          # each feature
          coordinates = user_geo['geometry']['coordinates']

          if user_geo['geometry']['type'] == 'Point'
            geo_object = GeoItem.new(db)
            geo_object[:lat] = coordinates[1].to_f
            geo_object[:lng] = coordinates[0].to_f
            geo_object[:type] = 'point'
            geo_objects << geo_object
          elsif user_geo['geometry']['type'] == 'LineString'
            geo_object = GeoItem.new(db)
            MapPLZ.flip_path(coordinates)
            geo_object[:path] = coordinates
            geo_object[:type] = 'polyline'
            geo_objects << geo_object
          elsif user_geo['geometry']['type'] == 'Polygon'
            geo_object = GeoItem.new(db)
            coordinates.map! do |ring|
              MapPLZ.flip_path(ring)
            end
            geo_object[:path] = coordinates
            geo_object[:type] = 'polygon'
            geo_objects << geo_object
          elsif user_geo['geometry']['type'] == 'MultiPoint'
            coordinates.each do |point|
              geo_object = GeoItem.new(db)
              geo_object[:lat] = point[1].to_f
              geo_object[:lng] = point[0].to_f
              geo_object[:type] = 'point'
              geo_objects << geo_object
            end
          elsif user_geo['geometry']['type'] == 'MultiLineString'
            coordinates.each do |line|
              geo_object = GeoItem.new(db)
              geo_object[:path] = MapPLZ.flip_path(line)
              geo_object[:type] = 'polyline'
              geo_objects << geo_object
            end
          elsif user_geo['geometry']['type'] == 'MultiPolygon'
            coordinates.each do |poly|
              geo_object = GeoItem.new(db)
              poly.map! do |ring|
                MapPLZ.flip_path(ring)
              end
              geo_object[:path] = poly
              geo_object[:type] = 'polygon'
              geo_objects << geo_object
            end
          end

          # store properties on all generated geometries
          prop_keys = {}
          if user_geo.key?('properties')
            user_geo['properties'].keys.each do |key|
              prop_keys[key.to_sym] = user_geo['properties'][key]
            end
          end
          geo_objects.each do |geo|
            prop_keys.keys.each do |key|
              geo[key] = prop_keys[key]
            end
          end
        end
      end
    end
  end

  geo_objects
end

Instance Method Details

#<<(user_geo) ⇒ Object

aliases for add



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# File 'lib/mapplz.rb', line 656

def <<(user_geo)
  add(user_geo)
end

#add(user_geo, lonlat = false) ⇒ Object 



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# File 'lib/mapplz.rb', line 38

def add(user_geo, lonlat = false)
  begin
    geo_objects = MapPLZ.standardize_geo(user_geo, lonlat, @db)
  rescue MapPLZException
    geo_objects = code(user_geo)
  end

  if @db_type == 'array'
    @my_array += geo_objects
  elsif @db_type == 'mongodb'
    geo_objects.each do |geo_object|
      save_obj = geo_object.clone
      save_obj.delete(:_id)
      save_obj.delete(:lat)
      save_obj.delete(:lng)
      save_obj.delete(:path)
      save_obj.delete(:centroid)
      save_obj.delete(:type)
      save_obj[:geo] = JSON.parse(geo_object.to_geojson)['geometry']
      reply = @db_client.insert(save_obj)
      geo_object[:_id] = reply.to_s
    end
  elsif @db_type == 'postgis' || @db_type == 'spatialite'
    geo_objects.each do |geo_object|
      geom = geo_object.to_wkt
      if @db_type == 'postgis'
        geojson_props = (JSON.parse(geo_object.to_geojson)['properties'] || {})
        reply = @db_client.exec("INSERT INTO mapplz (properties, geom) VALUES ('#{geojson_props.to_json}', ST_GeomFromText('#{geom}')) RETURNING id")
      elsif @db_type == 'spatialite'
        reply = @db_client.execute("INSERT INTO mapplz (label, geom) VALUES ('#{geo_object[:label] || ''}', AsText('#{geom}')) RETURNING id")
      end
      geo_object[:id] = reply[0]['id']
    end
  end

  if geo_objects.length == 1
    geo_objects[0]
  else
    geo_objects
  end
end

#choose_db(db) ⇒ Object 



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# File 'lib/mapplz.rb', line 28

def choose_db(db)
  db.downcase!
  fail 'Database type not supported by MapPLZ' unless DATABASES.include?(db)
  db = 'postgis' if db == 'postgres' || db == 'postgresql'
  db = 'spatialite' if db == 'sqlite'
  db = 'mongodb' if db == 'mongo'
  @db_type = db
  @db[:type] = db
end

#code(mapplz_code) ⇒ Object 



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# File 'lib/mapplz.rb', line 140

def code(mapplz_code)
  @code_lines = mapplz_code.gsub("\r", '').split("\n")
  @code_level = 'toplevel'
  @button_layers = []
  @code_button = 0
  @code_layers = []
  @code_label = ''
  @code_color = nil
  code_line(0)
  @code_layers
end

#count(where_clause = nil, add_on = nil) ⇒ Object 



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# File 'lib/mapplz.rb', line 80

def count(where_clause = nil, add_on = nil)
  results = query(where_clause, add_on)
  results.length
end

#embed_html(options = {}) ⇒ Object

aliases for render_html



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# File 'lib/mapplz.rb', line 679

def embed_html(options = {})
  render_html(options)
end

#inside(user_geo) ⇒ Object 



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# File 'lib/mapplz.rb', line 274

def inside(user_geo)
  geo_results = []

  # accept [point1, point2, point3, point1] as a polygon search area
  if user_geo.is_a?(Array) && user_geo[0].is_a?(Array) && !user_geo[0][0].is_a?(Array)
    user_geo = [user_geo]
  end

  search_areas = MapPLZ.standardize_geo(user_geo)

  search_areas.each do |search_area|
    next unless search_area.key?(:path)
    wkt = search_area.to_wkt

    if @db_type == 'array'
      # in-Ruby point-in-polygon
      @my_array.each do |geo_item|
        GeoItem.centroid(geo_item)
        geo_results << geo_item if geo_item.inside?(search_area)
      end
    elsif @db_type == 'mongodb'
      polygon_gj = JSON.parse(search_area.to_geojson)['geometry']
      cursor = @db_client.find(geo: { '$geoWithin' => { '$geometry' => polygon_gj } })
    elsif @db_type == 'postgis'
      cursor = @db_client.exec("SELECT id, ST_AsText(geom) AS geo, properties FROM mapplz AS start WHERE ST_Contains(ST_GeomFromText('#{wkt}'), start.geom)")
    elsif @db_type == 'spatialite'
      cursor = @db_client.exec("SELECT id, AsText(geom) AS geo, label FROM mapplz WHERE MBRContains(FromText('#{wkt}'), FromText(geom))")
    end

    geo_results += read_cursor(cursor)
  end
  geo_results
end

#length(where_clause = nil, add_on = nil) ⇒ Object 



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# File 'lib/mapplz.rb', line 674

def length(where_clause = nil, add_on = nil)
  count(where_clause, add_on)
end

#near(user_geo, limit = 10, max = 40_010_000, lon_lat = false) ⇒ Object 



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# File 'lib/mapplz.rb', line 236

def near(user_geo, limit = 10, max = 40_010_000, lon_lat = false)
  max = max.to_f # send max in meters
  limit = limit.to_i

  if user_geo.is_a?(Hash)
    lat = user_geo[:lat] || user_geo['lat'] || user_geo[:latitude] || user_geo['latitude']
    lng = user_geo[:lng] || user_geo['lng'] || user_geo[:longitude] || user_geo['longitude']
    user_geo = [lat.to_f, lng.to_f]
  elsif user_geo.is_a?(Array)
    user_geo.reverse! if lon_lat
  else
    fail 'must query near a point'
  end

  lat = user_geo[0].to_f
  lng = user_geo[1].to_f
  wkt = "POINT(#{lng} #{lat})"
  geo_results = []

  if @db_type == 'array'
    @my_array.sort! do |a, b|
      a_distance = a.distance_from([lat, lng])
      b_distance = b.distance_from([lat, lng])
      a_distance <=> b_distance
    end
    geo_results = @my_array.slice(0, limit)
  elsif @db_type == 'mongodb'
    cursor = @db_client.find(geo: { '$nearSphere' => { '$geometry' => { type: 'Point', coordinates: [lng, lat] }, '$maxDistance' => max } })
  elsif @db_type == 'postgis'
    cursor = @db_client.exec("SELECT id, ST_AsText(geom) AS geo, properties, ST_Distance(start.geom::geography, ST_GeomFromText('#{wkt}')::geography) AS distance FROM mapplz AS start WHERE ST_Distance(start.geom::geography, ST_GeomFromText('#{wkt}')::geography) <= #{max} ORDER BY distance LIMIT #{limit}")
  elsif @db_type == 'spatialite'
    cursor = @db_client.execute("SELECT id, AsText(geom) AS geo, label, Distance(start.geom, AsText('#{wkt}')) AS distance FROM mapplz AS start WHERE Distance(start.geom, AsText('#{wkt}')) <= #{max} ORDER BY distance LIMIT #{limit}")
  end

  geo_results += read_cursor(cursor)
  geo_results
end

#push(user_geo) ⇒ Object 



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# File 'lib/mapplz.rb', line 660

def push(user_geo)
  add(user_geo)
end

#query(where_clause = nil, add_on = nil) ⇒ Object 



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# File 'lib/mapplz.rb', line 85

def query(where_clause = nil, add_on = nil)
  geo_results = []

  if where_clause.present?
    if @db_type == 'array'
      geo_results = query_array(where_clause, add_on)
    elsif @db_type == 'mongodb'
      conditions = parse_sql(where_clause, add_on = nil)
      mongo_conditions = {}
      conditions.each do |condition|
        field = condition[:field]
        compare_value = add_on || condition[:value]
        operator = condition[:operator].to_s

        mongo_conditions[field] = compare_value if operator == '='
        mongo_conditions[field] = { '$lt' => compare_value } if operator == '<'
        mongo_conditions[field] = { '$lte' => compare_value } if operator == '<='
        mongo_conditions[field] = { '$gt' => compare_value } if operator == '>'
        mongo_conditions[field] = { '$gte' => compare_value } if operator == '>='
      end

      cursor = @db_client.find(mongo_conditions)
    elsif @db_type == 'postgis'
      where_prop = where_clause.strip.split(' ')[0]
      where_clause = where_clause.gsub(where_prop, "json_extract_path_text(properties, '#{where_prop}')")

      cursor = @db_client.exec("SELECT id, ST_AsText(geom) AS geo, properties FROM mapplz WHERE #{where_clause}")
    elsif @db_type == 'spatialite'
      if add_on.is_a?(String)
        where_clause = where_clause.gsub('?', "'#{add_on}'")
      elsif add_on.is_a?(Integer) || add_on.is_a?(Float)
        where_clause = where_clause.gsub('?', "#{add_on}")
      end

      cursor = @db_client.execute("SELECT id, AsText(geom) AS geo, label FROM mapplz WHERE #{where_clause}")
    end
  else
    # query all
    if @db_type == 'array'
      geo_results = @my_array
    elsif @db_type == 'mongodb'
      cursor = @db_client.find
    elsif @db_type == 'postgis'
      cursor = @db_client.exec('SELECT id, ST_AsText(geom) AS geo, properties FROM mapplz')
    elsif @db_type == 'spatialite'
      cursor = @db_client.execute('SELECT id, AsText(geom) AS geo, label FROM mapplz')
    else
      # @my_db.all
    end
  end

  geo_results += read_cursor(cursor)
  geo_results
end

#render_html(options = {}) ⇒ Object 



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# File 'lib/mapplz.rb', line 157

def render_html(options = {})
  # Leaflet options
  options[:tile_layer] ||= Leaflet.tile_layer
  options[:attribution] ||= Leaflet.attribution
  options[:max_zoom] ||= Leaflet.max_zoom
  options[:container_id] ||= 'map'

  geojson_features = JSON.parse(to_geojson)['features']

  # use Leaflet to add clickable markers
  options[:markers] = []
  geojson_features.each do |feature|
    next if feature['geometry']['type'] != 'Point'

    if feature.key?('properties')
      if feature['properties'].is_a?(Hash) && feature['properties'].key?('label')
        label = feature['properties']['label']
      elsif feature['properties'].key?('properties') && feature['properties']['properties'].is_a?(Array) && feature['properties']['properties'].length == 1
        label = feature['properties']['properties'][0]
      end
    else
      label = nil
    end
    options[:markers] << { latlng: feature['geometry']['coordinates'].reverse, popup: label }
  end

  render_text = map(options).gsub('</script>', '')

  # add clickable lines and polygons after
  # Leaflet-Rails does not support clickable lines or any polygons
  geojson_features.each do |feature|
    next if feature['geometry']['type'] == 'Point'

    label = nil
    path_options = {}
    path_options[:color] = options[:color] if options.key?(:color)
    path_options[:opacity] = options[:opacity] if options.key?(:opacity)
    path_options[:fillColor] = options[:fillColor] if options.key?(:fillColor)
    path_options[:fillOpacity] = options[:fillOpacity] if options.key?(:fillOpacity)
    path_options[:weight] = options[:weight] if options.key?(:weight)
    path_options[:stroke] = options[:stroke] if options.key?(:stroke)

    if feature.key?('properties')
      if feature['properties'].key?('label')
        label = feature['properties']['label']
      elsif feature['properties'].key?('properties') && feature['properties']['properties'].is_a?(Array) && feature['properties']['properties'].length == 1
        label = feature['properties']['properties'][0]
      end

      path_options[:color] = feature['properties']['color'] if feature['properties'].key?('color')
      path_options[:opacity] = feature['properties']['opacity'].to_f if feature['properties'].key?('opacity')
      path_options[:fillColor] = feature['properties']['fillColor'] if feature['properties'].key?('fillColor')
      path_options[:fillOpacity] = feature['properties']['fillOpacity'].to_f if feature['properties'].key?('fillOpacity')
      path_options[:weight] = feature['properties']['weight'].to_i if feature['properties'].key?('weight')
      path_options[:stroke] = feature['properties']['stroke'] if feature['properties'].key?('stroke')
      path_options[:clickable] = true unless label.nil?
    end

    flip_coordinates = feature['geometry']['coordinates']
    if flip_coordinates[0][0].is_a?(Array)
      flip_coordinates.each do |segment|
        segment.map! { |coord| coord.reverse }
      end
    else
      flip_coordinates.map! { |coord| coord.reverse }
    end

    if feature['geometry']['type'] == 'LineString'
      render_text += ('line = L.polyline(' + flip_coordinates.to_json + ", #{path_options.to_json}).addTo(map);\n").html_safe
      render_text += "line.bindPopup('#{label}');\n".html_safe unless label.nil?
    elsif feature['geometry']['type'] == 'Polygon'
      render_text += ('polygon = L.polygon(' + flip_coordinates[0].to_json + ", #{path_options.to_json}).addTo(map);\n").html_safe
      render_text += "polygon.bindPopup('#{label}');\n".html_safe unless label.nil?
    end
  end

  render_text + '</script>'
end

#size(where_clause = nil, add_on = nil) ⇒ Object

aliases for count



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# File 'lib/mapplz.rb', line 670

def size(where_clause = nil, add_on = nil)
  count(where_clause, add_on)
end

#to_geojson ⇒ Object 



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# File 'lib/mapplz.rb', line 152

def to_geojson
  geojson = { type: 'FeatureCollection', features: query.map { |feature| JSON.parse(feature.to_geojson) } }
  geojson.to_json
end

#where(where_clause = nil, add_on = nil) ⇒ Object

aliases for query



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# File 'lib/mapplz.rb', line 665

def where(where_clause = nil, add_on = nil)
  query(where_clause, add_on)
end