Class: AcademicCalendar

Inherits:
Object
  • Object
show all
Defined in:
app/services/academic_calendar.rb

Class Method Summary collapse

Class Method Details

.break_length_between_minis(semester) ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 169

def self.break_length_between_minis(semester)
  case semester
    when "Fall"
      1
    when "Spring"
      2
    when "Summer"
      0
  end
end

.current_mini ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 37

def self.current_mini
  cweek = Date.today.cweek()
  cwyear = Date.today.cwyear()

  spring_a = AcademicCalendar.semester_start("Spring", cwyear)
  summer_a = AcademicCalendar.semester_start("Summer", cwyear)
  fall_a = AcademicCalendar.semester_start("Fall", cwyear)

  case cweek
    when (spring_a)..(spring_a + 6) then
      "A"
    when (spring_a + 9)..(spring_a + 15) then
      "B"

    when (summer_a)..(summer_a + 5) then
      "A"
    when (summer_a + 6)..(summer_a + 11) then
      "B"

    when (fall_a)..(fall_a + 6) then
      "A"
    when (fall_a + 8)..(fall_a + 14) then
      "B"
    else
      "Unknown"
  end
end

.current_semester ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 21

def self.current_semester
  return "Spring" if Date.today <= AcademicCalendar.grades_due_for("Spring", Date.today.year)
  return "Summer" if Date.today <= AcademicCalendar.grades_due_for("Summer", Date.today.year)
  return "Fall"   if Date.today <= AcademicCalendar.grades_due_for("Fall", Date.today.year)
  return "Spring"
end

.current_semester_old ⇒ Object

Looking at the calendar, we want current_semester to have these characteristics Spring starts roughly around Christmas and ends 1 week after last day of semester Summer starts 1 week before and end 1 week after semester Fall starts 1 week before and goes to roughly around Christmas

In reality, this should be based upon when grades are due.



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# File 'app/services/academic_calendar.rb', line 14

def self.current_semester_old
  cweek = Date.today.cweek()
  return "Spring" if cweek < AcademicCalendar.semester_start("Summer", Date.today.cwyear) - 1 || cweek > 51
  return "Summer" if cweek < AcademicCalendar.semester_start("Fall", Date.today.cwyear) - 1
  return "Fall"
end

.current_semester_year ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 28

def self.current_semester_year
  cweek = Date.today.cweek()
  if cweek > 51
    Date.today.cwyear + 1
  else
    Date.today.cwyear
  end
end

.date_for_mini_end(semester, mini, year) ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 387

def self.date_for_mini_end(semester, mini, year)
  cweek = semester_start(semester, year)
  cweek += self.term_length(semester, "A") - 1
  if mini == "B"
    cweek += self.break_length_between_minis(semester)
    cweek += self.term_length(semester, mini)
  end
  Date.commercial(year, cweek, 5) #Friday
end

.date_for_mini_start(semester, mini, year) ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 378

def self.date_for_mini_start(semester, mini, year)
  cweek = semester_start(semester, year)
  if mini == "B"
    cweek += self.term_length(semester, mini) - 1
    cweek += self.break_length_between_minis(semester) + 1
  end
  Date.commercial(year, cweek, 1)
end

.date_for_semester_end(semester, year) ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 372

def self.date_for_semester_end(semester, year)
  cweek = semester_start(semester, year)
  cweek += self.term_length(semester, "Both")
  Date.commercial(year, cweek, 5) #Friday
end

.date_for_semester_start(semester, year) ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 367

def self.date_for_semester_start(semester, year)
  cweek = semester_start(semester, year)
  Date.commercial(year, cweek)
end

.grades_due_for(semester, year) ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 180

def self.grades_due_for(semester, year)
  case year
  when 2015
    case semester
    when "Spring"
      return Date.new(2015, 5, 19)
    when "Summer"
      return  Date.new(2015, 8, 11)
    when "Fall"
      return  Date.new(2015, 12, 23)
    end
  when 2014
    case semester
      when "Spring"
        return Date.new(2014, 5, 21)
      when "Summer"
        return  Date.new(2014, 8, 12)
      when "Fall"
        return  Date.new(2014, 12, 18)
    end      
    when 2013
      case semester
        when "Spring"
          return Date.new(2013, 5, 22)
        when "Summer"
          return  Date.new(2013, 8, 13)
        when "Fall"
          return  Date.new(2013, 12, 18)
      end
    when 2012
      case semester
        when "Spring"
          return Date.new(2012, 5, 22)
        when "Summer"
          return  Date.new(2012, 8, 14)
        when "Fall"
          return  Date.new(2012, 12, 20)
      end
    when 2011
      case semester
        when "Spring"
          return Date.new(2011, 5, 17)
        when "Summer"
          return  Date.new(2011, 8, 9)
        when "Fall"
          return  Date.new(2011, 12, 22)
      end
    when 2010
      case semester
        when "Spring"
          return Date.new(2010, 5, 18)
        when "Summer"
          return  Date.new(2010, 8, 10)
        when "Fall"
          return  Date.new(2010, 12, 16)
      end
    else
      options = {:to => "[email protected]",
                 :subject => "(Real) Academic Calendar needs updating: grades_due_for",
                 :message => "Please modify app/services/AcademicCalendar.rb grades_due_for(#{semester}, #{year})",
                 :url_label => "",
                 :url => ""
      }
      GenericMailer.email(options).deliver

      case semester
      when 'Spring'
        return Date.new(year, 5, 19)
      when 'Summer'
        return  Date.new(year, 8, 11)
      when 'Fall'
        return  Date.new(year, 12, 23)
      end
  end


end

.next_semester ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 65

def self.next_semester
  case AcademicCalendar.current_semester
    when "Spring"
      return "Summer"
    when "Summer"
      return "Fall"
    when "Fall"
      return "Spring"
  end
end

.next_semester_is_soon ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 84

def self.next_semester_is_soon
  case self.current_mini
    when "A"
      false
    when "B"
      true
    when "Unknown"
      true
    else
      true
  end
end

.next_semester_year ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 76

def self.next_semester_year
  if AcademicCalendar.next_semester == "Spring" || Date.today.cweek > 51
      return Date.today.cwyear + 1
    else
      return Date.today.cwyear
  end
end

.parse_HUB_semester(short_form) ⇒ Object

F12, S12, M12



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# File 'app/services/academic_calendar.rb', line 398

def self.parse_HUB_semester(short_form)
  return "", "" if short_form.blank?

  case short_form[0]
    when 'F'
      semester = 'Fall'
    when 'S'
      semester = 'Spring'
    when 'M'
      semester = 'Summer'
    else
      semester = ""
  end

  year = '20' + short_form[1..2]
  year = year.to_i
  year = "" if year == 20

  return semester, year
end

.parse_semester_and_year(semester_year_string) ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 419

def self.parse_semester_and_year(semester_year_string)
  semester = semester_year_string[0..-5]
  semester = semester.capitalize if semester
  year = semester_year_string[-4..-1].to_i
  year = "" if year == 0
  return semester, year
end

.semester_start(semester, year) ⇒ Object

Last day of class December 6, 2013 May 2, 2013 August 7, 2014



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# File 'app/services/academic_calendar.rb', line 272

def self.semester_start(semester, year)
  case year
    when 2015
      case semester
        when "Spring" #Not official yet (4/1/2014)
          return 3
        when "Summer" #Not official yet (4/1/2014)
          return 21
        when "Fall" #Not official yet (4/1/2014)
          return 35
      end
    when 2014
      case semester
        when "Spring"
          return 3
        when "Summer"
          return 21
        when "Fall" #Not official yet (1/2/2012)
          return 35
      end
    when 2013
      case semester
        when "Spring"
          return 3
        when "Summer"
          return 21
        when "Fall"
          return 35
      end
    when 2012
      case semester
        when "Spring"
          return 3
        when "Summer"
          return 21
        when "Fall"
          return 35
      end
    when 2011
      case semester
        when "Spring"
          return 2
        when "Summer"
          return 20
        when "Fall"
          return 35
      end
    when 2010
      case semester
        when "Spring"
          return 2
        when "Summer"
          return 20
        when "Fall"
          return 34
      end
    when 2009
      case semester
        when "Spring"
          return 3
        when "Summer"
          return 21
        when "Fall"
          return 34
      end
    when 2008 #This calendar is not aligned to the CMU Pittsburgh calendar
      case semester
        when "Spring"
          return 2
        when "Summer"
          return 16
        when "Fall"
          return 35
      end
    else
      options = {:to => "[email protected]",
                 :subject => "(Real) Academic Calendar needs updating: semester_start",
                 :message => "Please modify app/services/AcademicCalendar.rb semester_start(#{semester}, #{year})  #{year.class}",
                 :url_label => "",
                 :url => ""
      }
      GenericMailer.email(options).deliver

      case semester
      when 'Spring'
        return 3
      when 'Summer'
        return 21
      when 'Fall'
        return 35
      end
  end

end

.spring_break(year) ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 110

def self.spring_break(year)
  case year
    when 2015
      return 11
    when 2014
      return 10..11
    when 2013
      return 10..11
    when 2012
      return 10..11
    when 2011
      return 9..10
    when 2010
      return 9..10
    else
      options = {:to => "[email protected]",
                 :subject => "(Real) Academic Calendar needs updating: spring_break",
                 :message => "Please modify app/services/AcademicCalendar.rb spring_break(#{year})",
                 :url_label => "",
                 :url => ""
      }
      GenericMailer.email(options).deliver
      return 11
  end
end

.term_length(semester, mini) ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 137

def self.term_length(semester, mini)
  case semester
    when "Fall"
      case mini
        when "A"
          7
        when "B"
          7
        when "Both"
          15
      end
    when "Spring"
      case mini
        when "A"
          7
        when "B"
          7
        when "Both"
          16
      end
    when "Summer"
      case mini
        when "A"
          6
        when "B"
          6
        when "Both"
          12
      end
  end
end

.valid_semester_and_year(string) ⇒ Object 



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# File 'app/services/academic_calendar.rb', line 428

def self.valid_semester_and_year(string)
  (semester, year) = self.parse_semester_and_year(string)
  (semester, year) = self.parse_HUB_semester(string) if (semester.empty? || year.is_a?(String))

  semester = "" unless ["Fall", "Summer", "Spring"].include?(semester)
  if year.is_a?(Fixnum)
    year = "" unless year > 2007 && year <= (Date.today.year + 1)
  end

  return semester, year
end

.week_during_semester?(year, week_number) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/academic_calendar.rb', line 97

def self.week_during_semester?(year, week_number)
  case week_number
    when self.semester_start("Spring", year)..(self.semester_start("Spring", year)+16)
      return true
    when self.semester_start("Summer", year)..(self.semester_start("Summer", year)+11)
      return true
    when self.semester_start("Fall", year)..(self.semester_start("Fall", year)+15)
      return true
    else
      return false
  end
end