Type:
Class
Represents the schema of an SQL table in an abstract way. This class provides methods for manipulating the schema representation.
Inside migration files, the t
object in
create_table
is actually of this type:
class SomeMigration < ActiveRecord::Migration def up create_table :foo do |t| puts t.class # => "ActiveRecord::ConnectionAdapters::TableDefinition" end end def down ... end end
The table definitions The Columns are stored as a ColumnDefinition in the
columns
attribute.