32 lines
		
	
	
	
		
			1.2 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			32 lines
		
	
	
	
		
			1.2 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # frozen_string_literal: true
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| 
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| class TruncatePreviewCards < ActiveRecord::Migration[5.1]
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|   def up
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|     rename_table :preview_cards, :deprecated_preview_cards
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| 
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|     create_table :preview_cards do |t|
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|       t.string     :url, default: '', null: false, index: { unique: true }
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|       t.string     :title, default: '', null: false
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|       t.string     :description, default: '', null: false
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|       t.attachment :image
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|       t.integer    :type, default: 0, null: false
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|       t.text       :html, default: '', null: false
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|       t.string     :author_name, default: '', null: false
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|       t.string     :author_url, default: '', null: false
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|       t.string     :provider_name, default: '', null: false
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|       t.string     :provider_url, default: '', null: false
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|       t.integer    :width, default: 0, null: false
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|       t.integer    :height, default: 0, null: false
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|       t.timestamps
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|     end
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|   end
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| 
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|   def down
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|     if ActiveRecord::Base.connection.table_exists? 'deprecated_preview_cards'
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|       drop_table :preview_cards
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|       rename_table :deprecated_preview_cards, :preview_cards
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|     else
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|       raise ActiveRecord::IrreversibleMigration, 'Previous preview cards table has already been removed'
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|     end
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|   end
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| end
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