aliases/implications: add » links to name fields.

Add » links to the antecedent and consequent name fields. These links
let you find all tags aliased or implied to or from a given tag. For
implications, this is a deep search (includes indirectly implied tags).

app/models/tag_implication.rb

@@ -48,6 +48,24 @@ class TagImplication < TagRelationship
     end
   end
 
+  concerning :SearchMethods do
+    class_methods do
+      def search(params)
+        q = super
+
+        if params[:implied_from].present?
+          q = q.where(id: ancestors_of(params[:implied_from]).select(:id))
+        end
+
+        if params[:implied_to].present?
+          q = q.where(id: descendants_of(params[:implied_to]).select(:id))
+        end
+
+        q
+      end
+    end
+  end
+
   module ValidationMethods
     def absence_of_circular_relation
       return if is_rejected?

app/views/tag_aliases/_listing.html.erb

@@ -1,10 +1,12 @@
 <%= table_for tag_aliases, width: "100%" do |t| %>
   <% t.column "From", width: "25%" do |tag_alias| %>
     <%= link_to tag_alias.antecedent_name, posts_path(tags: tag_alias.antecedent_name), class: tag_class(tag_alias.antecedent_tag) %>
+    <%= link_to "»", tag_aliases_path(search: { antecedent_name_ilike: tag_alias.antecedent_name }) %>
     <span class="count"><%= tag_alias.antecedent_tag&.post_count.to_i %></span>
   <% end %>
   <% t.column "To", width: "25%" do |tag_alias| %>
     <%= link_to tag_alias.consequent_name, posts_path(tags: tag_alias.consequent_name), class: tag_class(tag_alias.consequent_tag) %>
+    <%= link_to "»", tag_aliases_path(search: { consequent_name_ilike: tag_alias.consequent_name }) %>
     <span class="count"><%= tag_alias.consequent_tag&.post_count.to_i %></span>
   <% end %>
   <% t.column "Reference", width: "10%" do |tag_alias| %>

app/views/tag_implications/_listing.html.erb

@@ -1,15 +1,17 @@
 <%= table_for tag_implications, width: "100%" do |t| %>
   <% t.column "From", width: "25%" do |tag_implication| %>
     <%= link_to tag_implication.antecedent_name, posts_path(tags: tag_implication.antecedent_name), class: tag_class(tag_implication.antecedent_tag) %>
+    <%= link_to "»", tag_implications_path(search: { implied_from: tag_implication.antecedent_name }) %>
     <span class="count"><%= tag_implication.antecedent_tag&.post_count.to_i %></span>
   <% end %>
   <% t.column "To", width: "25%" do |tag_implication| %>
     <%= link_to tag_implication.consequent_name, posts_path(tags: tag_implication.consequent_name), class: tag_class(tag_implication.consequent_tag) %>
+    <%= link_to "»", tag_implications_path(search: { implied_to: tag_implication.consequent_name }) %>
     <span class="count"><%= tag_implication.consequent_tag&.post_count.to_i %></span>
   <% end %>
-  <% t.column "Reference", width: "10%" do |tag_implication| %>
+  <% t.column "Topic", width: "10%" do |tag_implication| %>
     <% if tag_implication.forum_topic_id %>
-      <%= link_to tag_implication.forum_topic_id, forum_topic_path(tag_implication.forum_topic_id) %>
+      <%= link_to "topic ##{tag_implication.forum_topic_id}", forum_topic_path(tag_implication.forum_topic_id) %>
     <% end %>
   <% end %>
   <% t.column "Approver", width: "15%" do |tag_implication| %>