92 lines
2.8 KiB
Ruby
92 lines
2.8 KiB
Ruby
#
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# Copyright (C) 2011 Instructure, Inc.
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#
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# This file is part of Canvas.
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#
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# Canvas is free software: you can redistribute it and/or modify it under
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# the terms of the GNU Affero General Public License as published by the Free
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# Software Foundation, version 3 of the License.
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#
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# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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class AssignmentReminder < ActiveRecord::Base
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belongs_to :assignment
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belongs_to :user
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has_a_broadcast_policy
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before_save :infer_defaults
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attr_accessible :assignment, :user, :reminder_type
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def infer_defaults
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self.reminder_type ||= 'due_at'
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end
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set_broadcast_policy do |p|
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p.dispatch :assignment_due_date_reminder
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p.to { user }
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p.whenever {|record|
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@remind_due_at
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}
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p.dispatch :assignment_publishing_reminder
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p.to { user }
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p.whenever { |record|
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@remind_publishing
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}
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p.dispatch :assignment_grading_reminder
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p.to { user }
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p.whenever { |record|
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@remind_grading
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}
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end
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def update_for(assignment)
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raise "Wrong assignment" unless assignment.id == assignment_id
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time = assignment.due_reminder_time_for(assignment.context, self.user)
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time = assignment.grading_reminder_time_for(assignment.context, self.user) if self.reminder_type == 'grading'
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if self.reminder_type == 'grading' && time && time > 0 && assignment.due_at + time > Time.now
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self.remind_at = assignment.due_at + time
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self.save
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true
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elsif self.reminder_type == 'due_at' && time && time > 0 && assignment.due_at - time > Time.now
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self.remind_at = assignment.due_at - time
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self.save
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true
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else
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self.destroy unless self.new_record?
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false
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end
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end
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named_scope :need_sending, lambda {
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{:conditions => ['assignment_reminders.remind_at < ?', Time.now.utc], :limit => 30 }
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}
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def remind!
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if reminder_type == 'due_at'
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submission = assignment.find_submission(user) rescue nil
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@remind_due_at = true if !submission || !submission.has_submission?
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save
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elsif reminder_type == 'grading'
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student_count = assignment.context.students.count rescue 0
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graded_submission_count = assignment.submissions.graded.count rescue 0
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if graded_submission_count < (student_count * Assignment.percent_considered_graded)
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@remind_grading = true
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save
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elsif (!assignment.published? rescue false)
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@remind_publishing = true
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save
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end
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end
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self.destroy
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end
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end
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