Remove old Excel loader

schedules/db/excel_loader.rb

-# This file is no longer being used.
-# Data is now being parsed from Patriot Web.
-
-require 'rubyXL'
-
-# Provides utilities for loading schedules from GMU's excel files.
-class ExcelLoader
-  def initialize(file_path)
-    workbook = RubyXL::Parser.parse(file_path)
-    @rows = workbook[0]
-    @rows = @rows.drop(16) # the first 16 rows are junk data, so remove them
-    @semester = Semester.create! season: 'Fall', year: '2018'
-    @current_course = nil
-  end
-
-  # Loads all data from the Excel file into the database.
-  def load_data
-    @rows.each do |row|
-      if (course = configure_course?(row)) # If this row contained a course, save it
-        course.save!
-        @current_course = course
-      end
-      configure_section?(row)&.save! # If this row contained a section, save it
-    end
-
-    load_closures
-  end
-
-  private
-
-  # create closures for the days there will be no classes
-  # see: https://registrar.gmu.edu/calendars/fall-2018/
-  def load_closures
-    Closure.create! date: Date.new(2018, 9, 3), semester: @semester
-    Closure.create! date: Date.new(2018, 10, 8), semester: @semester
-    (21..25).each { |n| Closure.create! date: Date.new(2018, 11, n), semester: @semester }
-    (10..19).each { |n| Closure.create! date: Date.new(2018, 12, n), semester: @semester }
-  end
-
-  # Prints the failure, deletes all data added during loading, and raises the failure error.
-  def fail(error)
-    logger.fatal error.message
-    logger.fatal error.backtrace
-    raise error
-  end
-
-  # Tries to create a course from a given row.
-  def configure_course?(row)
-    course_name = row.cells[1]&.value
-    course = nil
-
-    # Ensure the course name is valid
-    if course_name.present? && course_name != 'Total'
-      # Split the name into its two components, i.e. "CS 112" => ["CS", "112"]
-      name_components = course_name.split(' ')
-
-      # Try to save the new course
-      course = Course.new
-      course.subject = name_components[0]
-      course.course_number = name_components[1]
-      course.semester = @semester
-    end
-
-    course
-  end
-
-  # Tries to create a section from a given row.
-  def configure_section?(row)
-    section_name = row.cells[2]&.value
-
-    # If there is no valid section name, just continue to the next row
-    return nil if section_name.blank? || section_name == 'Total'
-
-    # The time field in the spreadsheet uses the format "start_time - end_time" i.e. "12:00 PM - 1:15 PM".
-    # So, split the times string by the - character
-    times = row.cells[23]&.value
-    time_strs = times.split('-')
-
-    instructor_val = row.cells[16]
-    instructor = if instructor_val.nil? || instructor_val.value == "'-"
-                   "TBA"
-                 else
-                   instructor_val.value
-                 end
-
-    location_cell = row.cells[25]
-    location = if location_cell.nil? || location_cell.value.include?("'-")
-                 "TBA"
-               else
-                 location_cell.value
-               end
-
-    section = CourseSection.create name: section_name,
-                                   course: @current_course,
-                                   crn: row.cells[6]&.value,
-                                   section_type: row.cells[8]&.value,
-                                   title: row.cells[11]&.value,
-                                   instructor: instructor,
-                                   start_date: row.cells[18]&.value,
-                                   end_date: row.cells[21]&.value,
-                                   days: row.cells[22]&.value,
-                                   start_time: time_strs[0].strip,
-                                   end_time: time_strs[1].strip,
-                                   location: location
-
-    section
-  end
-end