On 16 October 2014 12:49, Jin Xie <[email protected]> wrote: > at this > method(https://github.com/rails/rails/blob/08754f12e65a9ec79633a605e986d0f1ffa4b251/activerecord/lib/active_record/schema_migration.rb#L24) > > limit is default to `nil` which mean it is optional argument, and few lines > down `version_options` only adds limit when the limit is passed from the > argument. > > and in this > method(https://github.com/rails/rails/blob/08754f12e65a9ec79633a605e986d0f1ffa4b251/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb#L241) > pass on the options to `new_column_definition `, and this > `new_column_definition` > method(https://github.com/rails/rails/blob/08754f12e65a9ec79633a605e986d0f1ffa4b251/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb#L295) > will try to `fetch(:limit)` which will raise exception. > > Am wondering had I missing something ?
If fetch does not find the key then it runs the block. http://ruby-doc.org/core-2.1.3/Hash.html#method-i-fetch Colin -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/CAL%3D0gLuS-utvJN3B4HN3X%3D1bi4%2BRd73_q2Joc4EVxSauaPWdkw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
