Rails - Jul 2006 - best way to update one-to-many relationship

whats the best way to either add or remove entries for a one-to-many 
relationship.

Should I just put all the entries associated with a record into form 
fields, and than on submit delete all the entries, and then reenter all 
of the ones on the current form.

This would take into account addition and deletions to the database.

whats the best way to do this with many-to-many assuming you want new 
entries created and not just linking two entries in different tables?

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Eric Gross wrote:
> whats the best way to either add or remove entries for a one-to-many 
> relationship.
> 
> Should I just put all the entries associated with a record into form 
> fields, and than on submit delete all the entries, and then reenter all 
> of the ones on the current form.
> 
> This would take into account addition and deletions to the database.
Clearing and replacing the whole set of related objects is a fine
way to do it as long as:

1. The existing objects aren''t linked to other records via their
    current ids.

2. The records aren''t too big.

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We develop, watch us RoR, in numbers too big to ignore.