Merge pull request #4531 from BrokenEagle/wiki-linked-to

Add option to search for wikis that don't link to a specific wiki

app/models/wiki_page.rb

@@ -53,7 +53,11 @@ class WikiPage < ApplicationRecord
     end
 
     def linked_to(title)
-      where(id: DtextLink.wiki_page.wiki_link.where(link_target: title).select(:model_id))
+      where(dtext_links: DtextLink.wiki_page.wiki_link.where(link_target: normalize_title(title)))
+    end
+
+    def not_linked_to(title)
+      where.not(dtext_links: DtextLink.wiki_page.wiki_link.where(link_target: normalize_title(title)))
     end
 
     def default_order
@@ -82,6 +86,10 @@ class WikiPage < ApplicationRecord
         q = q.linked_to(params[:linked_to])
       end
 
+      if params[:not_linked_to].present?
+        q = q.not_linked_to(params[:not_linked_to])
+      end
+
       if params[:hide_deleted].to_s.truthy?
         q = q.where("is_deleted = false")
       end
@@ -146,6 +154,7 @@ class WikiPage < ApplicationRecord
   end
 
   def self.normalize_title(title)
+    return if title.blank?
     title.downcase.delete_prefix("~").gsub(/[[:space:]]+/, "_").gsub(/__/, "_").gsub(/\A_|_\z/, "")
   end
 

app/views/wiki_pages/search.html.erb

@@ -4,6 +4,8 @@
       <%= f.input :title_normalize, label: "Title", hint: "Use * for wildcard searches", input_html: { "data-autocomplete": "wiki-page" } %>
       <%= f.input :other_names_match, label: "Other names", hint: "Use * for wildcard searches" %>
       <%= f.input :body_matches, label: "Body" %>
+      <%= f.input :linked_to, hint: "Which wikis link to the specified wiki.", input_html: { "data-autocomplete": "wiki-page" } %>
+      <%= f.input :not_linked_to, hint: "Which wikis do not link to the specified wiki.", input_html: { "data-autocomplete": "wiki-page" } %>
       <%= f.input :other_names_present, as: :select %>
       <%= f.input :hide_deleted, as: :select, include_blank: false %>
       <%= f.input :order, collection: [%w[Name title], %w[Date time], %w[Posts post_count]], include_blank: false %>