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17 lines
445 B
Ruby
17 lines
445 B
Ruby
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# frozen_string_literal: true
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class CreateLinkedTopics < ActiveRecord::Migration[6.0]
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def change
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create_table :linked_topics do |t|
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t.bigint :topic_id, null: false
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t.bigint :original_topic_id, null: false
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t.integer :sequence, null: false
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t.timestamps
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end
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add_index :linked_topics, [:topic_id, :original_topic_id], unique: true
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add_index :linked_topics, [:topic_id, :sequence], unique: true
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end
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end
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