hookup_tables

relates to pivotal stories "display list of pending events in a table", 75025008, and "display list of active/live hookups (i.e. hookups with live hangouts) in a separate table",75025492. 
This caused me a lot of confusion at first also.  However, it's not the same thing.  The index method pulls the records out of the database.  @event in the spec is a local/temporary variable.  The spec needs to store the modification back to the database in order for the controller's index method to retrieve the changed attribute.