59 lines
1.9 KiB
Ruby
59 lines
1.9 KiB
Ruby
# Copyright (C) 2017 - 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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#
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class DiscussionTopicSectionVisibility < ActiveRecord::Base
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include Workflow
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belongs_to :course_section
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belongs_to :discussion_topic
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attr_readonly :discussion_topic_id, :course_section_id
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validates :discussion_topic_id, presence: true, unless: :new_discussion_topic?
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validates :course_section_id, :workflow_state, presence: true
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validate :discussion_topic_is_section_specific
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validate :course_and_topic_share_context
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workflow do
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state :active
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state :deleted
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end
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alias_method :destroy_permanently!, :destroy
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def destroy
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self.workflow_state = 'deleted'
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self.save!
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end
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def discussion_topic_is_section_specific
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return true if self.discussion_topic.is_section_specific
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self.errors.add(:discussion_topic_id, t("Cannot add section to a non-section-specific discussion"))
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end
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# Note that this forbids group discussions from being section-specific (which
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# is intentional)
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def course_and_topic_share_context
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return true if self.discussion_topic.context_id == self.course_section.course_id
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self.errors.add(:course_section_id,
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t("Section does not belong to course for this discussion topic"))
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end
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def new_discussion_topic?
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self.discussion_topic&.new_record?
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end
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end
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