I’ve read AWDR and especially the part concerning adding child
line_items to an order. Unfortunately I want to do my process in
reverse and in doing what I thought would work I get a null object error
when trying to append the children to the parent.
This is a major stumbling block in my Rails use as almost every one of
my projects has needed this so its a pretty vital problem I need to
My two tables:
Reviews -< Pictures
(Parent) -< (Child)
I have a form where you first add a Review and after clicking an Ajax
link it produces a sub-form ready for inputting the child pictures.
However, no matter whether I want just one child or a group of children
on the form I can’t seem to get the Child objects to ‘<<’ (append) to
the parent object.
In the book you collect your cart of ‘children’ (line_items) then append
these after creating an order.
My code is (in this instance I try it with just a single child):
@picture = Picture.new(params[:picture])
@review = Review.new(params[:review])
@review.pictures << @picture.pictures
I’m totally at a loss and I’m on hands and knees. Please please help
me. I want to go far with Rails and this is killing me.
Thank you for reading.