On Miércoles, 29 de Diciembre de 2010 08:49:19 ruby_noob escribió:
> Hi folks
> i have 3 simple models
>
> class Region < ActiveRecord::Base
> has_many :cities
> has_many :schools, :through => :cities
> end
>
> class City < ActiveRecord::Base
> belongs_to :region
> has_many :schools
> end
>
> class School < ActiveRecord::Base
> belongs_to :city
> end
> 1. How to define SchoolsController activescaffold config to add
> region column?
Add delegate :region, :to => :city to School model.
Add :region to config.columns.
> 2. at SchoolsController is it possible have all columns (region
> and
> city) add an school and choose region first and scoped city
> (after changed region)
Define school_region_form_column helper override with all regions.
Set update_column in region column: config.columns[:region].update_column =
:city
Define options_for_association_conditions helper:
def options_for_association_conditions(association)
if association.name == :city
{:region_id => @record.region.try(:id)}
else
super
end
end
--
Sergio Cambra .:: entreCables S.L. ::.
Mariana Pineda 23, 50.018 Zaragoza
T) 902 021 404 F) 976 52 98 07 E) [email protected]
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