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15 lines
332 B
Ruby
15 lines
332 B
Ruby
# frozen_string_literal: true
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class PopulateTopicIdOnBookmarks < ActiveRecord::Migration[6.0]
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def up
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Bookmark
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.where(topic_id: nil)
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.includes(:post)
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.find_each { |bookmark| bookmark.update_column(:topic_id, bookmark.post.topic_id) }
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end
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def down
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raise ActiveRecord::IrreversibleMigration
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end
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end
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