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13 lines
404 B
13 lines
404 B
class CreateKnowledgePointContainers < ActiveRecord::Migration[5.2]
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def change
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create_table :knowledge_point_containers do |t|
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t.references :knowledge_point
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t.integer :container_id
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t.string :container_type
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t.timestamps
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end
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add_index :knowledge_point_containers, [:knowledge_point_id, :container_id, :container_type], name: "container_index", unique: true
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end
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end
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