Used more efficient ActiveRecord create

schedules_api/db/seeds.rb

@@ -41,6 +41,8 @@ Semester.delete_all
 semester = Semester.create! season: 'Fall', year: 2018
 semester.save!
 
+all_sections = []
+
 total.each do |subject, sections|
   puts "Adding courses for #{subject}..."
   sections.each do |section|
@@ -49,6 +51,23 @@ total.each do |subject, sections|
       next
     end
 
+    section_name = "#{section[:subj]} #{section[:course_number]} #{section[:section]}"
+
+    all_sections.push({
+      name: section_name,
+      crn: section[:crn],
+      section_type: section[:type],
+      title: section[:title],
+      instructor: section[:instructor],
+      start_date: section[:start_date],
+      end_date: section[:end_date],
+      days: section[:days],
+      start_time: section[:start_time], 
+      end_time: section[:end_time],
+      location: section[:location],
+      course: course
+    })
+
     # Find or create a course and set its semester
     # TODO: this breaks when you try to do more than one semester,
     # since just the subject + course_number do not uniquely identify a course
@@ -58,25 +77,12 @@ total.each do |subject, sections|
     course.semester = semester
     course.save!
 
-    section_name = "#{section[:subj]} #{section[:course_number]} #{section[:section]}"
-
     # puts "Adding #{section_name}..."
-
-    CourseSection.create!(name: section_name,
-                          crn: section[:crn],
-                          section_type: section[:type],
-                          title: section[:title],
-                          instructor: section[:instructor],
-                          start_date: section[:start_date],
-                          end_date: section[:end_date],
-                          days: section[:days],
-                          start_time: section[:start_time],
-                          end_time: section[:end_time],
-                          location: section[:location],
-                          course: course)
   end
 end
 
+CourseSection.create!(all_sections)
+
 # create closures for the days there will be no classes
 # see: https://registrar.gmu.edu/calendars/fall-2018/
 Closure.create! date: Date.new(2018, 9, 3), semester: semester