wiki pages: add wildcard support to "other names" search.

app/logical/sources/site.rb

@@ -54,7 +54,7 @@ module Sources
           tag
         end
       end
-      WikiPage.other_names_match(untranslated_tags).map{|wiki_page| [wiki_page.title, wiki_page.category_name]}
+      WikiPage.other_names_equal(untranslated_tags).map{|wiki_page| [wiki_page.title, wiki_page.category_name]}
     end
 
     def to_h

app/models/wiki_page.rb

@@ -40,12 +40,20 @@ class WikiPage < ActiveRecord::Base
       end
     end
 
-    def other_names_match(names)
-      names = names.map{|name| name.to_escaped_for_tsquery}
-      query_sql = names.join(" | ")
+    def other_names_equal(names)
+      query_sql = names.map(&:to_escaped_for_tsquery).join(" | ")
       where("other_names_index @@ to_tsquery('danbooru', E?)", query_sql)
     end
 
+    def other_names_match(name)
+      if name =~ /\*/
+        subquery = WikiPage.from("unnest(string_to_array(other_names, ' ')) AS other_name").where("other_name ILIKE ?", name.to_escaped_for_sql_like)
+        where(id: subquery)
+      else
+        other_names_equal([name])
+      end
+    end
+
     def search(params = {})
       q = where("true")
       params = {} if params.blank?
@@ -63,7 +71,7 @@ class WikiPage < ActiveRecord::Base
       end
 
       if params[:other_names_match].present?
-        q = q.other_names_match(params[:other_names_match].split(" "))
+        q = q.other_names_match(params[:other_names_match])
       end
 
       if params[:creator_name].present?

app/views/wiki_pages/search.html.erb

@@ -4,7 +4,7 @@
       <%= search_field "title", :hint => "Use * for wildcard searches" %>
       <%= search_field "creator_name" %>
       <%= search_field "body_matches", :label => "Body" %>
-      <%= search_field "other_names_match", :label => "Other names" %>
+      <%= search_field "other_names_match", :label => "Other names", :hint => "Use * for wildcard searches" %>
 
       <div class="input">
         <label for="search_other_names_present">Other names present?</label>