I managed to get the complex forms and nested resources described in
http://railscasts.com/episodes/75-complex-forms-part-3 to work.
But I’m having problems when deleting a sub item.
tasks.reject(&:new_record?).each do |task|
attributes = task_attributes[task.id.to_s]
task.attributes = attributes
the tasks.delete(task) gives me a mysql error: Mysql::Error: Cannot add
or update a child row: a foreign key constraint fails
My main item has several sub items and a sub item belongs to the main
item. In my mysql database, the constraint is set at the sub item table,
pointing to the main item id and on delete => cascade.
Anyone has an idea on what is going on? Why this is giving me an error?