chore: fix problem with enrollment scraper

app/services/dese/enrollments.rb

@@ -22,16 +22,16 @@ module Dese
     end
 
     def student_count(filepath:, dese_id:, year:)
-      @students ||= {}
-      if @students.count == 0
+      @student_count ||= {}
+      if @student_count.count == 0
         CSV.parse(File.read(filepath), headers: true).map do |row|
           academic_year = row['Academic Year']
-          school_id = row['DESE ID'].to_i
+          school_id = row['School Code'].to_i
           total = row['Total'].gsub(',', '').to_i
-          @students[[school_id, academic_year]] = total
+          @student_count[[school_id, academic_year]] = total
         end
       end
-      @students[[dese_id, year]]
+      @student_count[[dese_id, year]]
     end
   end
 end

app/services/survey_item_values.rb

@@ -56,7 +56,7 @@ class SurveyItemValues
   def recorded_date
     @recorded_date ||= begin
       recorded_date = value_from(pattern: /Recorded\s*Date/i)
-      date = if recorded_date.match(%r{\d+/\d+/\d+})
+      if recorded_date.match(%r{\d+/\d+/\d+})
         Date.strptime(recorded_date, "%m/%d/%Y")
       elsif recorded_date.match(/\d+-\d+-\d+(T|\s)\d+:\d+:\d+/)
         Date.parse(recorded_date)