fixing school category order

app/models/school_category.rb

@@ -14,6 +14,10 @@ class SchoolCategory < ApplicationRecord
 
   scope :valid, -> { where("response_count > #{MIN_RESPONSE_COUNT} or zscore is not null") }
 
+  def root_index
+    category.root_index
+  end
+
   def answer_index_average
     answer_index_total.to_f / response_count.to_f
   end

app/views/schools/show.html.haml

@@ -9,6 +9,6 @@
       %p No data is displayed for this school because of insufficient responses.
 - else
   .row
-    = render @school_categories
+    = render @school_categories.sort(&:root_index)
 
 = render "shared/performance_spectrum"