77 lines
2.6 KiB
Ruby
77 lines
2.6 KiB
Ruby
# frozen_string_literal: true
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#
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# Copyright (C) 2014 - 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 AssignmentStudentVisibility < ActiveRecord::Base
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include VisibilityPluckingHelper
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belongs_to :user
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belongs_to :assignment
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belongs_to :course
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# create_or_update checks for !readonly? before persisting
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def readonly?
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true
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end
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def self.visible_assignment_ids_in_course_by_user(opts)
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visible_object_ids_in_course_by_user(:assignment_id, opts)
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end
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def self.assignments_with_user_visibilities(course, assignments)
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only_visible_to_overrides, visible_to_everyone = assignments.partition(&:only_visible_to_overrides)
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assignment_visibilities = {}
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if only_visible_to_overrides.any?
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options = { course_id: course.id, assignment_id: only_visible_to_overrides.map(&:id) }
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assignment_visibilities.merge!(users_with_visibility_by_assignment(options))
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end
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if visible_to_everyone.any?
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assignment_visibilities.merge!(
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assignments_visible_to_all_students(visible_to_everyone)
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)
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end
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assignment_visibilities
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end
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def self.assignments_visible_to_all_students(assignments_visible_to_everyone)
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assignments_visible_to_everyone.each_with_object({}) do |assignment, assignment_visibilities|
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# if an assignment is visible to everyone, we do not care about the contents
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# of its assignment_visibilities. instead of setting this to an array of every
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# student's ID, we set it to an empty array to save time when calling to_json
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assignment_visibilities[assignment.id] = []
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end
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end
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def self.users_with_visibility_by_assignment(opts)
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users_with_visibility_by_object_id(:assignment_id, opts)
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end
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def self.visible_assignment_ids_for_user(user_id, course_ids=nil)
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opts = {user_id: user_id}
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if course_ids
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opts[:course_id] = course_ids
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end
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self.where(opts).pluck(:assignment_id)
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end
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# readonly? is not checked in destroy though
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before_destroy { |record| raise ActiveRecord::ReadOnlyRecord }
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end
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