50 lines
1.6 KiB
Ruby
50 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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#
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# Copyright (C) 2019 - 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 SubmissionDraftAttachment < ActiveRecord::Base
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belongs_to :submission_draft, inverse_of: :submission_draft_attachments
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belongs_to :attachment, inverse_of: :submission_draft_attachments
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validates :submission_draft, presence: true
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validates :attachment, presence: true
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validates :submission_draft, uniqueness: { scope: :attachment }
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after_create :save_shadow_submission_draft_attachment, if: :cross_shard_attachment?
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before_destroy :destroy_shadow_submission_draft_attachment, if: :cross_shard_attachment?
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def attachment_shard
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@attachment_shard ||= Shard.shard_for(attachment_id)
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end
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private
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def cross_shard_attachment?
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attachment_id.present? && attachment_shard != shard
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end
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def save_shadow_submission_draft_attachment
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save_shadow_record(target_shard: attachment_shard)
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end
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def destroy_shadow_submission_draft_attachment
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destroy_shadow_records(target_shards: attachment_shard)
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end
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end
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