fixes #725

app/presenters/wiki_page_presenter.rb

@@ -21,6 +21,14 @@ class WikiPagePresenter
     @antecedent_tag_alias ||= TagAlias.where("status = 'active' and antecedent_name = ?", wiki_page.title).first
   end
 
+  def consequent_tag_implications
+    @consequent_tag_implications ||= TagImplication.where("status = 'active' and consequent_name = ?", wiki_page.title).all
+  end
+
+  def antecedent_tag_implication
+    @antecedent_tag_implication ||= TagImplication.where("status = 'active' and antecedent_name = ?", wiki_page.title).first
+  end
+
   # Produce a formatted page that shows the difference between two versions of a page.
   def diff(other_version)
     pattern = Regexp.new('(?:<.+?>)|(?:[0-9_A-Za-z\x80-\xff]+[\x09\x20]?)|(?:[ \t]+)|(?:\r?\n)|(?:.+?)')

app/views/wiki_pages/show.html.erb

@@ -22,6 +22,14 @@
         <% if @wiki_page.presenter.consequent_tag_aliases.any? %>
           <p class="hint">The following tags are aliased to this tag: <%= raw @wiki_page.presenter.consequent_tag_aliases.map {|x| link_to(x.antecedent_name, posts_path(:tags => x.antecedent_name))}.join(", ") %>.</p>
         <% end %>
+
+        <% if @wiki_page.presenter.antecedent_tag_implication %>
+          <p class="hint">This tag has been implicated to <%= link_to @wiki_page.presenter.antecedent_tag_implication.consequent_name, posts_path(:tags => @wiki_page.presenter.antecedent_tag_implication.consequent_name) %>.</p>
+        <% end %>
+
+        <% if @wiki_page.presenter.consequent_tag_implications.any? %>
+          <p class="hint">The following tags are implicated to this tag: <%= raw @wiki_page.presenter.consequent_tag_implications.map {|x| link_to(x.antecedent_name, posts_path(:tags => x.antecedent_name))}.join(", ") %>.</p>
+        <% end %>
       </div>
 
       <div id="wiki-page-posts">