From d6755356e04026bf98ddb735899873a7c74b58ea Mon Sep 17 00:00:00 2001
From: Tom Hughes <tom@compton.nu>
Date: Tue, 20 Apr 2010 19:04:12 +0100
Subject: [PATCH] Improve the browse helper code use to generate wiki links

---
 app/helpers/browse_helper.rb   | 49 +++++++++++++++-------------------
 app/views/browse/_tag.html.erb |  2 +-
 config/locales/en.yml          |  2 +-
 3 files changed, 23 insertions(+), 30 deletions(-)

diff --git a/app/helpers/browse_helper.rb b/app/helpers/browse_helper.rb
index 48dd590a2..6ec3fb591 100644
--- a/app/helpers/browse_helper.rb
+++ b/app/helpers/browse_helper.rb
@@ -16,41 +16,34 @@ module BrowseHelper
     return name
   end
 
-  def wiki_link(type, key, tag)
-    wiki_data = YAML.load_file("#{RAILS_ROOT}/config/wiki-tag-and-key-description.yml")
-    my_locale = I18n.locale.to_s
-
-    if type == "key"
-      ret = key
-      lookup = key
+  def format_key(key)
+    if url = wiki_link("key", key)
+      link_to h(key), url, :title => t('browse.tag_details.wiki_link.key', :key => key)
     else
-      ret = tag
-      lookup = key + "=" + tag
+      h(key)
     end
+  end
 
-    # Try our native language
-    has_primary = wiki_data[my_locale][type][lookup] rescue false
-    if has_primary
-      ret = wikify(type, key, tag, lookup, wiki_data[my_locale][type][lookup])
+  def format_value(key, value)
+    if url = wiki_link("tag", "#{key}=#{value}")
+      link_to h(value), url, :title => t('browse.tag_details.wiki_link.tag', :key => key, :value => value)
     else
-      # Fall back on English
-      has_fallback = wiki_data["en"][type][lookup] rescue false
-      if has_fallback
-        ret = wikify(type, key, tag, lookup, wiki_data["en"][type][lookup])
-      end
+      linkify h(value)
     end
-
-    return ret
   end
 
-  def wikify(type, key, tag, text, wiki)
-    my_locale = I18n.locale
-    url = "http://wiki.openstreetmap.org/wiki/#{wiki}?uselang=#{my_locale}"
-    
-    if type == "key"
-      return '<a href="' + url + '" title="' + h(t('browse.tag_details.wiki_link.key', :key => key)) + '">' + h(text) + '</a>'
-    else
-      return '<a href="' + url + '" title="' + h(t('browse.tag_details.wiki_link.tag', :key => key, :value => tag)) + '">' + h(tag) + '</a>'
+private
+
+  def wiki_link(type, lookup)
+    wiki_data = YAML.load_file("#{RAILS_ROOT}/config/wiki-tag-and-key-description.yml")
+    locale = I18n.locale.to_s
+
+    if page = wiki_data[locale][type][lookup] rescue nil
+      url = "http://wiki.openstreetmap.org/wiki/#{page}?uselang=#{locale}"
+    elsif page = wiki_data["en"][type][lookup] rescue nil
+      url = "http://wiki.openstreetmap.org/wiki/#{page}?uselang=#{locale}"
     end
+
+    return url
   end
 end
diff --git a/app/views/browse/_tag.html.erb b/app/views/browse/_tag.html.erb
index 4096873da..2eadad4f2 100644
--- a/app/views/browse/_tag.html.erb
+++ b/app/views/browse/_tag.html.erb
@@ -1,3 +1,3 @@
 <tr>
-  <td><%= wiki_link("key", h(tag[0]), nil) %> = <%= wiki_link("tag", h(tag[0]), auto_link(h(tag[1]))) %></td>
+  <td><%= format_key(tag[0]) %> = <%= format_value(tag[0], tag[1]) %></td>
 </tr> 
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 17bae6c57..7b9720fbd 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -234,7 +234,7 @@ en:
     tag_details:
       tags: "Tags:"
       wiki_link:
-        key: "The wiki description page for the {{key}}=* tag"
+        key: "The wiki description page for the {{key}} tag"
         tag: "The wiki description page for the {{key}}={{value}} tag"
     way_details:
       nodes: "Nodes:"
-- 
2.39.5