Define options_for_association_conditions:
def options_for_association_conditions(association, record)
if association.name == :city
{:postal_code => record.postal_code}
else
super
end
end
Then, set update_columns on postal_code to update city column:
config.columns[:postal_code].update_columns = [:city]
When postal code is changed, record on options_for_association_conditions will
have
only postal_code set, if you need to filter by some other columns, you will
have to enable
sending whole form when column changes:
config.columns[:postal_code].send_form_on_update_column = true
El Martes, 2 de junio de 2015 07:10:05 Gloufy escribió:
> Re hi,
>
> I try to chaining form :
> I've got postal code field in text, when i finish i want a drop down with
> only the city which have the same postal code (in france a postal code have
> many cities)
> How i can do it the dropdown update with only the right list form text
> field?
> Thank you so much for your Help Sergio !
> Gloufy
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