complex form with dynamic fields.

I've seen http://railscasts.com/episodes/73-complex-forms-part-1,
part2 and part3.
It seems to be my case.
I have:
Company
has_many :documents
has_many :tenders, :through..........

and
Document
belongs_to :company

Tender
has_many :companies, :through..........

I want to insert documents and tenerds on company creation.
If documents are more than one the user can click "add another" and
other fields are added to form.
It seems ok but I fear that it makes too complex my code.
I think it is better to insert a Company and after saved it then add
one or more documents or tenders in different forms.
What do you think about?

I've seen http://railscasts.com/episodes/73-complex-forms-part-1,
part2 and part3.
It seems to be my case.
I have:
Company
has_many :documents
has_many :tenders, :through..........

and
Document
belongs_to :company

Tender
has_many :companies, :through..........

I want to insert documents and tenerds on company creation.
If documents are more than one the user can click "add another" and
other fields are added to form.
It seems ok but I fear that it makes too complex my code.
I think it is better to insert a Company and after saved it then add
one or more documents or tenders in different forms.
What do you think about?

What matters is what is best for the user of the site. On the other
hand there is a lot to be said (especially when still learning) for
doing the simplest that will work initially and then refining it
later.

Colin

In a similar situation what could it be your approach?

I cannot advise you how your website should operate, that is up to
you. You could try it one way, see how it feels, try it the other and
then decide which you like best. Make sure you use a version control
system (git for example) so you can easily get back to where you were
previously and so you have a record of what you did.

Colin