method
rename_column
rename_column(table_name, column_name, new_column_name)
public
Hide source
# File activerecord/lib/active_record/connection_adapters/mysql_adapter.rb, line 525 def rename_column(table_name, column_name, new_column_name) #:nodoc: options = {} if column = columns(table_name).find { |c| c.name == column_name.to_s } options[:default] = column.default options[:null] = column.null else raise ActiveRecordError, "No such column: #{table_name}.#{column_name}" end current_type = select_one("SHOW COLUMNS FROM #{quote_table_name(table_name)} LIKE '#{column_name}'")["Type"] rename_column_sql = "ALTER TABLE #{quote_table_name(table_name)} CHANGE #{quote_column_name(column_name)} #{quote_column_name(new_column_name)} #{current_type}" add_column_options!(rename_column_sql, options) execute(rename_column_sql) end