method

change_column_null

Ruby on Rails latest stable (v7.1.3.2) - 0 notes - Class: SchemaStatements

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What's this?

change_column_null(table_name, column_name, null, default = nil) public

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# File activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb, line 443
        def change_column_null(table_name, column_name, null, default = nil) # :nodoc:
          validate_change_column_null_argument!(null)

          clear_cache!
          unless null || default.nil?
            column = column_for(table_name, column_name)
            execute "UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote_default_expression(default, column)} WHERE #{quote_column_name(column_name)} IS NULL" if column
          end
          execute "ALTER TABLE #{quote_table_name(table_name)} ALTER COLUMN #{quote_column_name(column_name)} #{null ? 'DROP' : 'SET'} NOT NULL"
        end

change_column_null

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