[ruby-it] Models multipli in un form

[Paola Andriani]

Grazie per la pazienza, intanto!!
Ho sostituito <%= builder.collection_select(:amministration, :land_id, 
@lands, :id,
{:prompt => "select territorio"}) %>

con <%= builder.collection_select(:land_id, @lands, :id, :denominazione,
{:prompt => "select territorio"}) %>

e adesso mi da

You have a nil object when you didn't expect it!
You might have expected an instance of Array.
The error occurred while evaluating nil.map
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