18 lines
		
	
	
	
		
			477 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			18 lines
		
	
	
	
		
			477 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
require Rails.root.join('lib', 'mastodon', 'migration_helpers')
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class AddEmbedUrlToPreviewCards < ActiveRecord::Migration[5.1]
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  include Mastodon::MigrationHelpers
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  disable_ddl_transaction!
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  def up
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    safety_assured do
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      add_column_with_default :preview_cards, :embed_url, :string, default: '', allow_null: false
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    end
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  end
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  def down
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    execute "UPDATE preview_cards SET url=embed_url WHERE embed_url!=''"
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    remove_column :preview_cards, :embed_url
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  end
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end
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