method

change

rails latest stable - Class: ActiveRecord::ConnectionAdapters::Table

Method not available on this version

This method is only available on newer versions. The first available version (v2.1.0) is shown here.

change(column_name, type, options = {})
public

Changes the column’s definition according to the new options. See TableDefinition#column for details of the options you can use.

Examples
 t.change(:name, :string, :limit => 80)
 t.change(:description, :text)