Introduce Program to include cfp/rooms/tracks/events/event_types/difficulty_levels

app/models/cfp.rb

@@ -0,0 +1,73 @@
+# cannot delete program if there are events submitted
+
+class Cfp < ActiveRecord::Base
+  belongs_to :program
+
+  attr_accessible :start_date, :end_date, :program_id
+
+  validates :program_id, presence: true, uniqueness: true
+  validates :start_date, :end_date, presence: true
+  validate :before_end_of_conference
+  validate :start_after_end_date
+
+  ##
+  # Checks whether cfp date is updated
+  #
+  # ====Returns
+  # * +True+ -> If cfp dates is updated and all other parameters are set
+  # * +False+ -> Either cfp date is not updated or one or more parameter is not set
+  def notify_on_cfp_date_update?
+    !self.end_date.blank? && !self.start_date.blank?\
+    && (self.start_date_changed? || self.end_date_changed?)\
+    && self.program.conference.email_settings.send_on_cfp_dates_updates\
+    && !self.program.conference.email_settings.cfp_dates_updates_subject.blank?\
+    && !self.program.conference.email_settings.cfp_dates_updates_template.blank?
+  end
+
+  ##
+  # Calculates how many weeks the call for paper is.
+  #
+  # ====Returns
+  # * +Integer+ -> start week
+  def weeks
+    result = end_week - start_week + 1
+    weeks = Date.new(start_date.year, 12, 31).strftime('%W').to_i
+    result < 0 ? result + weeks : result
+  end
+
+  ##
+  # Calculates the end week of the cfp
+  #
+  # ====Returns
+  def start_week
+    start_date.strftime('%W').to_i
+  end
+
+  ##
+  # Calculates the end week of the cfp
+  #
+  # ====Returns
+  def end_week
+    end_date.strftime('%W').to_i
+  end
+
+  def remaining_days(date = Date.today)
+    result = (self.end_date - date).to_i
+    result > 0 ? result : 0
+  end
+
+  private
+
+  def before_end_of_conference
+    errors.
+    add(:end_date, "can't be after the conference end date (#{program.conference.end_date})") if program.conference && program.conference.end_date && end_date && (end_date > program.conference.end_date)
+
+    errors.
+    add(:start_date, "can't be after the conference end date (#{program.conference.end_date})") if program.conference && program.conference.end_date && start_date && (start_date > program.conference.end_date)
+  end
+
+  def start_after_end_date
+    errors.
+    add(:start_date, "can't be after the end date") if start_date && end_date && start_date > end_date
+  end
+end