Correct grade level for kindergarten and add one off task to load test data

app/presenters/analyze/graph/column/grade/zero.rb

@@ -23,7 +23,7 @@ module Analyze
           end
 
           def grade
-            1
+            0
           end
         end
       end

lib/tasks/one_off.rake

@@ -131,4 +131,29 @@ namespace :one_off do
     end
     puts values
   end
+
+  desc 'load survey responses for lowell schools'
+  task load_survey_responses_for_lowell: :environment do
+    survey_item_response_count = SurveyItemResponse.count
+    student_count = Student.count
+    Sftp::Directory.open(path: '/test/survey_responses/') do |file|
+      SurveyResponsesDataLoader.from_file(file:)
+    end
+    puts "=====================> Completed loading #{SurveyItemResponse.count - survey_item_response_count} survey responses. #{SurveyItemResponse.count} total responses in the database"
+
+    Sftp::Directory.open(path: '/test/survey_responses/') do |file|
+      StudentLoader.from_file(file:, rules: [Rule::SkipNonLowellSchools])
+    end
+    puts "=====================> Completed loading #{Student.count - student_count} students. #{Student.count} total students"
+
+    puts 'Resetting response rates'
+    ResponseRateLoader.reset
+    puts "=====================> Completed loading #{ResponseRate.count} response rates"
+
+    puts 'Resetting race scores'
+    RaceScoreLoader.reset(fast_processing: false)
+    puts "=====================> Completed loading #{RaceScore.count} race scores"
+
+    Rails.cache.clear
+  end
 end