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