fixing merge_into

app/models/school.rb

@@ -48,7 +48,7 @@ class School < ApplicationRecord
     reload
 
     user_schools.update_all(school_id: school.id)
-    school.school_categories.map(&:sync_aggregated_responses)
+    # school.school_categories.map(&:sync_aggregated_responses)
     destroy
   end
 

app/models/school_category.rb

@@ -61,16 +61,18 @@ class SchoolCategory < ApplicationRecord
       average_zscore = total_zscore / zscore_categories.length
     end
 
+
+
     return {
       attempt_count:
         _aggregated_responses[:attempt_count] +
-        child_school_categories.inject(0) { |total, csc| total + csc.attempt_count || 0 },
+        child_school_categories.inject(0) { |total, csc| total + (csc.attempt_count || 0) },
       response_count:
         _aggregated_responses[:response_count] +
-        child_school_categories.inject(0) { |total, csc| total + csc.response_count || 0 },
+        child_school_categories.inject(0) { |total, csc| total + (csc.response_count || 0) },
       answer_index_total:
         _aggregated_responses[:answer_index_total] +
-        child_school_categories.inject(0) { |total, csc| total + csc.answer_index_total || 0 },
+        child_school_categories.inject(0) { |total, csc| total + (csc.answer_index_total || 0) },
       zscore: average_zscore.present? ? average_zscore : _aggregated_responses[:zscore]
     }
   end