Module: HUBClassRosterHandler

Extended by:
ActionView::Helpers::TextHelper
Defined in:
lib/HUB_class_roster_handler.rb

Class Method Summary collapse

Class Method Details

.email_help_about_missing_student(webiso_account, course) ⇒ Object 



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# File 'lib/HUB_class_roster_handler.rb', line 82

def self.email_help_about_missing_student , course
  options = {:to => "[email protected]", :subject => "Need to add this user #{}@andrew.cmu.edu",
             :message => "We were adding registered HUB users to the course #{course.name}, but they are not in the system.",
             :url => "http://whiteboard.sv.cmu.edu/people/new?webiso_account=#{}@andrew.cmu.edu&is_student=true",
             :url_label => "Add person"}
  GenericMailer.email(options).deliver
end

.email_professors_about_added_and_dropped_students(course, info) ⇒ Object 



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# File 'lib/HUB_class_roster_handler.rb', line 98

def self.email_professors_about_added_and_dropped_students course, info
  faculty_emails = course.faculty.collect(&:email)
  if faculty_emails.any?
    options = {:to => faculty_emails, :subject => "Roster change for your course #{course.name}",
               :message => self.roster_change_message(course, info[:added], info[:dropped], info[:not_in_system])}
# The message handles this well...
#                 :url_label => "Your course: " + course.number + " " + course.short_or_full_name,
#                 :url => "http://whiteboard.sv.cmu.edu/courses/#{course.id}" }
  else
    options = {:to => "[email protected]", :subject => "Please add faculty to this course",
               :message => "The HUB importer code was just run, however this course has no faculty assigned to it. Thus, I could not email them.",
               :url_label => "The course: " + course.number + " " + course.short_or_full_name,
               :url => "http://whiteboard.sv.cmu.edu/courses/#{course.id}" }
  end

  GenericMailer.email(options).deliver
end

.handle(roster_text) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/HUB_class_roster_handler.rb', line 4

def self.handle roster_text
  raise ArgumentError if roster_text.blank?
  roster_text = roster_text.gsub("\n", ' ').gsub("\r", ' ')
  parsed_courses = roster_text.split('CLASS ROSTER')

  unless parsed_courses.any?
    raise "Could not read your file, please check format."
  end

  users = User.all

  students_for_course = {}
  students_not_in_system_hash = {}
  no_courses_parsed = true

  parsed_courses.each do |parsed_course|
    if /Run Date: (.*) Course: (.*) Sect:\s*(\w+).*Semester: (.*)College:(.*)Department:(.*)Instructor\(s\): (.*)Name.*?_+(.*)/.match(parsed_course)
      no_courses_parsed = false
      course_number = $2.strip
      (semester, year) = AcademicCalendar.parse_HUB_semester($4.strip)

      student_webiso_accounts = $8.scan(/\d+\.\d.*?(\w+)/)

      course = Course.where(:semester => semester, :year => year, :number => course_number[0..1] + '-' + course_number[2..4]).first :include => [:registered_students]
      next unless course
      students_for_course[course] = students_for_course[course] || Set.new
      students_not_in_system_hash[course] = students_not_in_system_hash[course] || Set.new

      student_webiso_accounts.each do ||
        student = users.select { |u| u. == ("#{[0]}@andrew.cmu.edu") }.first
        #next
        unless student
          self.email_help_about_missing_student([0], course)
          students_not_in_system_hash[course] << [0]
          next
        end
        students_for_course[course] << student
      end
    end
  end

  if no_courses_parsed
    raise "Could not read your file, please check format."
  end

  Rails.logger.debug "Students_for_course::: #{students_for_course}"
  return self.handle_roster_changes students_for_course, students_not_in_system_hash
#    return self.handle_roster_changes students_for_course
end

.handle_roster_changes(students_for_course, students_not_in_system_hash) ⇒ Object 



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# File 'lib/HUB_class_roster_handler.rb', line 54

def self.handle_roster_changes students_for_course, students_not_in_system_hash
#  def self.handle_roster_changes students_for_course
  roster_changes = {}
  changes = false
  students_for_course.each do |course, students|
    roster_changes[course] = {}
    roster_changes[course][:added] = students.to_a - course.registered_students
    roster_changes[course][:dropped] = course.registered_students - students.to_a
    roster_changes[course][:not_in_system] = students_not_in_system_hash[course]

    Rails.logger.debug "Added: #{roster_changes[course][:added]}"
    Rails.logger.debug "Dropped: #{roster_changes[course][:dropped]}"

    course.registered_students = course.registered_students - roster_changes[course][:dropped]
    course.registered_students = course.registered_students + roster_changes[course][:added]

    if roster_changes[course][:added].any? || roster_changes[course][:dropped].any?
      course.invalidate_distribution_list
      changes = true
    end
    course.save
  end
  Rails.logger.debug roster_changes
#    Disable emailing professors about roster changes
#    self.send_emails roster_changes
  return changes
end

.roster_change_message(course, added, dropped, not_in_system) ⇒ Object 



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# File 'lib/HUB_class_roster_handler.rb', line 116

def self.roster_change_message course, added, dropped, not_in_system

  unless course
    message = "This email is supposed to contain information about course roster changes, but an error occurred while"
    message += "generating its contents.  Please contact <a href='mailto:[email protected]?subject=Roster%20Email%20Error'>Todd Sedano</a>"
    return message += "to resolve any issues."
  end

  message = "** This is an experimental feature. ** "
  message += "The official registration list for your course can be <a href='https://acis.as.cmu.edu/grades/'>found here</a>.<br/><br/>"
  message += "By loading in HUB data we can auto create class email distribution lists. Also, if you create teams with the rails system, then you can see who has not been assigned to a team. This does not currently track students on wait-lists. We only have access to students registered in 96-xxx courses.<br/><br/>"
  message += "The HUB does not provide us with registration information on a daily basis. Periodically, we manually upload HUB registrations. This is a summary of changes since the last time we updated information from the HUB.<br/><br/>"

  unless not_in_system.blank?
    message += "#{pluralize(not_in_system.count, "registered student")} #{not_in_system.count > 1 ? "are" : "is"} not in any of our SV systems:<br/>"
    not_in_system.each { |student|
      escaped_student = ERB::Util.html_escape(student)
      message += "&nbsp;&nbsp;&nbsp;#{escaped_student}@andrew.cmu.edu<br/>"
    }
    message += "We can easily create accounts for #{not_in_system.count > 1 ? "these" : "this"} #{pluralize(not_in_system.count, "student")}. Please forward this email to [email protected] indicating which students you want added. (The rails system will create google and twiki accounts.)<br/><br/>"
  end

  unless added.blank?
    message += "#{pluralize(added.count, "student")} #{added.count > 1 ? "were" : "was"} added to the course:<br/>"
    added.each { |student|
      escaped_first_name = ERB::Util.html_escape(student.first_name)
      escaped_last_name = ERB::Util.html_escape(student.last_name)
      message += "&nbsp;&nbsp;&nbsp;#{escaped_first_name} #{escaped_last_name}<br/>"
    }
  end

  unless dropped.blank?
    message += "#{pluralize(dropped.count, "student")} #{dropped.count > 1 ? "were" : "was"} dropped from the course:<br/>"
    dropped.each { |student|
      escaped_first_name = ERB::Util.html_escape(student.first_name)
      escaped_last_name = ERB::Util.html_escape(student.last_name)
      message += "&nbsp;&nbsp;&nbsp;#{escaped_first_name} #{escaped_last_name}<br/>"
    }
  end

  escaped_course_email = ERB::Util.html_escape(course.email)
  message += "<br/>The system will be updating your course mailing list (#{escaped_course_email}) For more information, see your <a href='http://whiteboard.sv.cmu.edu/courses/#{course.id}'>course tools</a><br/><br/>"

  message
end

.send_emails(roster_changes) ⇒ Object 



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# File 'lib/HUB_class_roster_handler.rb', line 91

def self.send_emails roster_changes
  roster_changes.each do |course, info|
    next if info[:added].blank? && info[:dropped].blank? && info[:not_in_system].blank?
    email_professors_about_added_and_dropped_students(course, info)
  end
end