Module: Decidim::MapHelper

Defined in:
app/helpers/decidim/map_helper.rb

Overview

This helper include some methods for rendering resources static and dynamic maps.

Instance Method Summary collapse

Instance Method Details

#dynamic_map_for(markers_data) ⇒ Object 



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# File 'app/helpers/decidim/map_helper.rb', line 30

def dynamic_map_for(markers_data)
  return if Decidim.geocoder.blank?

  map_html_options = {
    class: "google-map",
    id: "map",
    "data-markers-data" => markers_data.to_json
  }

  if Decidim.geocoder[:here_api_key]
    map_html_options["data-here-api-key"] = Decidim.geocoder[:here_api_key]
  else
    # Compatibility mode for old api_id/app_code configurations
    map_html_options["data-here-app-id"] = Decidim.geocoder[:here_app_id]
    map_html_options["data-here-app-code"] = Decidim.geocoder[:here_app_code]
  end

  content = capture { yield }.html_safe
  help = content_tag(:div, class: "map__help") do
    sr_content = content_tag(:p, t("screen_reader_explanation", scope: "decidim.map.dynamic"), class: "show-for-sr")
    link = link_to(t("skip_button", scope: "decidim.map.dynamic"), "#map_bottom", class: "skip")

    sr_content + link
  end
  content_tag :div, class: "row column" do
    map = content_tag(:div, "", map_html_options)
    link = link_to("", "#", id: "map_bottom")

    help + map + content + link
  end
end

#static_map_link(resource, options = {}) ⇒ Object

Renders a link to openstreetmaps with the resource latitude and longitude. The link’s content is a static map image.

resource - A geolocalizable resource options - An optional hash of options (default: { zoom: 17 })

* zoom: A number to represent the zoom value of the map



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# File 'app/helpers/decidim/map_helper.rb', line 12

def static_map_link(resource, options = {})
  return unless resource.geocoded?

  zoom = options[:zoom] || 17
  latitude = resource.latitude
  longitude = resource.longitude

  address_text = resource.try(:address)
  address_text ||= t("latlng_text", latitude: latitude, longitude: longitude, scope: "decidim.map.static")
  map_service_brand = t("map_service_brand", scope: "decidim.map.static")

  map_url = "https://www.openstreetmap.org/?mlat=#{latitude}&mlon=#{longitude}#map=#{zoom}/#{latitude}/#{longitude}"

  link_to map_url, target: "_blank", rel: "noopener" do
    image_tag decidim.static_map_path(sgid: resource.to_sgid.to_s), alt: "#{map_service_brand} - #{address_text}"
  end
end