Method: ActiveRecord::ConnectionAdapters::AbstractMysqlAdapter#change_column_null

Defined in:
activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb

#change_column_null(table_name, column_name, null, default = nil) ⇒ Object

:nodoc:



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# File 'activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb', line 388

def change_column_null(table_name, column_name, null, default = nil) # :nodoc:
  validate_change_column_null_argument!(null)

  unless null || default.nil?
    execute("UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote(default)} WHERE #{quote_column_name(column_name)} IS NULL")
  end

  change_column table_name, column_name, nil, null: null
end