14 lines
		
	
	
	
		
			433 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			14 lines
		
	
	
	
		
			433 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| class CreateMarkers < ActiveRecord::Migration[5.2]
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|   def change
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|     create_table :markers do |t|
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|       t.references :user, foreign_key: { on_delete: :cascade, index: false }
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|       t.string :timeline, default: '', null: false
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|       t.bigint :last_read_id, default: 0, null: false
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|       t.integer :lock_version, default: 0, null: false
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| 
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|       t.timestamps
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|     end
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| 
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|     add_index :markers, [:user_id, :timeline], unique: true
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|   end
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| end
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