Added wikidata links to the browse helper

Analogous to wikipedia tags this links any wikidata tag with its item
page on wikidata.

For now it's restricted to the plain wikidata=* tag (namespaces like
operator:wikidata=* and similar are not yet supported) and only accepts
the values with the format Q<number>.

diff --git a/app/helpers/browse_helper.rb b/app/helpers/browse_helper.rb
index e70ec204e6446c5046a7276fcd5c39648206cd38..3574d454acade4b3b56631ebaa69ce2cc05c82ee 100644 (file)
--- a/app/helpers/browse_helper.rb
+++ b/app/helpers/browse_helper.rb
@@ -61,6 +61,8 @@ module BrowseHelper
   def format_value(key, value)
     if wp = wikipedia_link(key, value)
       link_to h(wp[:title]), wp[:url], :title => t('browse.tag_details.wikipedia_link', :page => wp[:title])
+    elsif wdt = wikidata_link(key, value)
+      link_to h(wdt[:title]), wdt[:url], :title => t('browse.tag_details.wikidata_link', :page => wdt[:title])
     elsif url = wiki_link("tag", "#{key}=#{value}")
       link_to h(value), url, :title => t('browse.tag_details.wiki_link.tag', :key => key, :value => value)
     elsif url = telephone_link(key, value)
@@ -149,6 +151,16 @@ private
     }
   end
 
+  def wikidata_link(key, value)
+    if key == "wikidata" and value =~ /^[Qq][1-9][0-9]*$/
+      return {
+        :url => "//www.wikidata.org/wiki/#{value}?uselang=#{I18n.locale}",
+        :title => value
+      }
+    end
+    return nil
+  end
+
   def telephone_link(key, value)
     # does it look like a phone number? eg "+1 (234) 567-8901 " ?
     return nil unless value =~ /^\s*\+[\d\s\(\)\/\.-]{6,25}\s*$/

diff --git a/config/locales/en.yml b/config/locales/en.yml
index fe5f58d512cd55d4c4996a68d7421c503c6cbedb..1518349f3ed9f31d4421d0732b564dec598c7d59 100644 (file)
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -180,6 +180,7 @@ en:
       wiki_link:
         key: "The wiki description page for the %{key} tag"
         tag: "The wiki description page for the %{key}=%{value} tag"
+      wikidata_link: "The %{page} item on Wikidata"
       wikipedia_link: "The %{page} article on Wikipedia"
       telephone_link: "Call %{phone_number}"
     note: