Hi,
I managed to get the complex forms and nested resources described in #75 Complex Forms Part 3 - RailsCasts to work.
But I'm having problems when deleting a sub item.
def existing_task_attributes=(task_attributes) tasks.reject(&:new_record?).each do |task| attributes = task_attributes[task.id.to_s] if attributes task.attributes = attributes else tasks.delete(task) end end end
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?