34 lines
		
	
	
		
			956 B
		
	
	
	
		
			Ruby
		
	
	
	
			
		
		
	
	
			34 lines
		
	
	
		
			956 B
		
	
	
	
		
			Ruby
		
	
	
	
# frozen_string_literal: true
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module Gitlab
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  module Database
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    module RenameTableHelpers
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      def rename_table_safely(old_table_name, new_table_name)
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        transaction do
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          rename_table(old_table_name, new_table_name)
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          execute("CREATE VIEW #{old_table_name} AS SELECT * FROM #{new_table_name}")
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        end
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      end
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      def undo_rename_table_safely(old_table_name, new_table_name)
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        transaction do
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          execute("DROP VIEW IF EXISTS #{old_table_name}")
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          rename_table(new_table_name, old_table_name)
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        end
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      end
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      def finalize_table_rename(old_table_name, new_table_name)
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        transaction do
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          execute("DROP VIEW IF EXISTS #{old_table_name}")
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        end
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      end
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      def undo_finalize_table_rename(old_table_name, new_table_name)
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        transaction do
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          execute("CREATE VIEW #{old_table_name} AS SELECT * FROM #{new_table_name}")
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        end
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      end
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    end
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  end
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end
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