Add a grouped tag+node search endpoint for the upcoming dashboard

AdminController#dashboard_search returns tags and nodes as separate,
labeled groups (via ActsAsTaggableOn::Tag.named_like and
Node.editor_search) rather than the flat per-node list every existing
picker returns. initSearchPicker gains a renderResults callback option
that, when given, replaces the default per-node rendering entirely --
lets the dashboard render its two labeled groups without a second,
parallel picker implementation.

resultsHeaderHtml (the "Press Enter to see all results" hint) is now
threaded through as a third argument to renderResults, so a picker with
custom rendering can still show it -- previously only the default
per-node branch ever did.

Tags link straight to the existing /admin/nodes/tags/:tag view rather
than becoming an in-place filter chip.

1 files changed, 18 insertions, 0 deletions

diff --git a/app/controllers/admin_controller.rb b/app/controllers/admin_controller.rb
index 3c45c49..8445997 100644
--- a/app/controllers/admin_controller.rb
+++ b/app/controllers/admin_controller.rb
@@ -49,6 +49,24 @@ class AdminController < ApplicationController
     end
   end
 
+  def dashboard_search
+    term = params[:search_term]
+
+    if term.blank?
+      render json: { tags: [], nodes: [] }
+      return
+    end
+
+    render json: {
+      tags: ActsAsTaggableOn::Tag.named_like(term).limit(5).map { |tag|
+        { name: tag.name, tag_path: tags_nodes_path(tags: tag.name) }
+      },
+      nodes: Node.editor_search(term).limit(10).map { |node|
+        { node_id: node.id, title: node.title, unique_name: node.unique_name, node_path: node_path(node) }
+      }
+    }
+  end
+
   def menu_search
     if params[:search_term] == "Root"
       @results = [Node.root]