16 lines
630 B
Ruby
16 lines
630 B
Ruby
# frozen_string_literal: true
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class CreateReferencesTable < ActiveRecord::Migration[5.1]
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def change
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create_table :references do |t|
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t.integer :source_id, null: false
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t.string :source_type, limit: 60, null: false
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t.integer :target_id, null: false
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t.string :target_type, limit: 60, null: false
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end
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add_index :references, %i[source_id source_type target_id target_type],
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name: :index_references_on_source_and_target, unique: true
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add_index :references, %i[source_id source_type], name: :index_references_on_source_id_and_source_type
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end
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end
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