13 lines
		
	
	
		
			306 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			13 lines
		
	
	
		
			306 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
class CreateBlocks < ActiveRecord::Migration[5.0]
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  def change
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    create_table :blocks do |t|
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      t.integer :account_id, null: false
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      t.integer :target_account_id, null: false
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      t.timestamps null: false
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    end
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    add_index :blocks, [:account_id, :target_account_id], unique: true
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  end
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end
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