119 lines
4.5 KiB
Ruby
119 lines
4.5 KiB
Ruby
# frozen_string_literal: true
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#
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# Copyright (C) 2023 - present 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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class SortsAssignments
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class InvalidBucketError < StandardError; end
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VALID_BUCKETS = %i[past overdue undated ungraded unsubmitted upcoming future].freeze
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def initialize(assignments_scope:, user:, session:, course:, requested_user: nil)
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@assignments_scope = assignments_scope
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@user = user
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@session = session
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@course = course
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@requested_user = requested_user
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end
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def assignments(bucket, &)
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raise InvalidBucketError if VALID_BUCKETS.exclude?(bucket)
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@now = Time.zone.now
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filter(bucket, &)
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end
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private
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def filter(bucket)
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assignments_in_bucket = buckets.fetch(bucket).call(assignments_for_students)
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if block_given?
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yield assignments_in_bucket
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else
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@assignments_scope.where(id: assignments_in_bucket)
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end
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end
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def buckets
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{
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past: filters[:has_date] >> filters[:past_due],
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overdue: (
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filters[:has_date] >> filters[:past_due] >>
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filters[:expects_submission].call(additional_excludes: %w[external_tool online_quiz attendance]) >>
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filters[:not_submitted_or_graded] >> filters[:can_submit]
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),
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undated: filters[:has_no_date],
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ungraded: filters[:expects_submission].call >> filters[:needs_grading],
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unsubmitted: filters[:expects_submission].call >> filters[:not_submitted_or_graded],
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upcoming: filters[:has_date] >> filters[:due_soon],
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future: filters[:due_in_future]
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}
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end
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def filters
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@filters ||= {
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has_no_date: ->(scope) { scope.where(submissions: { cached_due_date: nil }) },
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has_date: ->(scope) { scope.where.not(submissions: { cached_due_date: nil }) },
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past_due: ->(scope) { scope.where(submissions: { cached_due_date: ...@now }) },
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due_in_future: ->(scope) { scope.where("submissions.cached_due_date IS NULL OR submissions.cached_due_date >= ?", @now) },
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due_soon: ->(scope) { scope.where(submissions: { cached_due_date: @now..1.week.from_now(@now) }) },
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expects_submission: lambda do |additional_excludes: ["external_tool"]|
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->(scope) { scope.expecting_submission(additional_excludes:) }
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end,
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needs_grading: ->(scope) { scope.where(Submission.needs_grading_conditions) },
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not_submitted_or_graded: ->(scope) { scope.merge(Submission.not_submitted_or_graded) },
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can_submit: lambda do |scope|
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students_by_id = students.index_by(&:id)
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students_by_assignment_id = scope.pluck("submissions.assignment_id", "submissions.user_id").each_with_object({}) do |(assignment_id, user_id), acc|
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acc[assignment_id] ||= []
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acc[assignment_id] << students_by_id[user_id]
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end
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assignments = @course.assignments.except(:order).where(id: students_by_assignment_id.keys).select do |assignment|
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submittable_by_any_student?(assignment, students_by_assignment_id[assignment.id])
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end
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@course.assignments.where(id: assignments).except(:order)
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end
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}
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end
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def submittable_by_any_student?(assignment, students)
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students.any? { |student| student.present? && assignment.grants_right?(student, :submit) }
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end
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def assignments_for_students
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@course.assignments.where(id: assignment_ids).except(:order).joins(:submissions).where(submissions: { user: students })
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end
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def assignment_ids
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@assignment_ids ||= @assignments_scope.pluck(:id)
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end
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def students
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@students ||= if @requested_user.present? && @user != @requested_user
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[@requested_user]
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elsif @course.grants_right?(@user, @session, :read_as_admin)
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@course.students_visible_to(@user).merge(Enrollment.of_student_type).distinct.to_a
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elsif @course.observers.where(id: @user).exists?
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ObserverEnrollment.observed_students(@course, @user).keys
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else
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[@user]
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end
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end
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end
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