@snusnu's plugin "accepts_nested_attributes" is probably the answer
but as a noobie I'm not having any luck getting it work.
(http://github.com/snusnu/dm-accepts_nested_attributes)
Here's the scenario again:
MODELS:
class Trip
...
has n, :trip_countries
has n, :countries, :through => :trip_countries
accepts_nested_attributes_for :countries
end
class Country
...
has n, :trip_countries
has n, :trips, :through => :trip_countries
accepts_nested_attributes_for :trips
end
class TripCountry
property :id, Serial
belongs_to :trip
belongs_to :country
end
In the trip VIEW form we have:
<% Country.all( :order=>[:name] ).each do |country| %>
<% checked = trip.countries.include?(country) ? 'checked' : nil %>
<%= check_box :name => "trip[countries][][id]",
:value => country.id, :checked => checked,
:boolean=>false, :label => country.name
%>
<% end %>
I'm formatting the checkbox field names as "trip[countries][][id]"
but I'm not sure whether they should be
"trip[countries][]" or "trip[countries][id][]" etc?!
(See http://wonderfullyflawed.com/2009/02/17/rails-forms-microformat )
Either way the checkbox selections will not save.
Any help greatly appreciated!
Many many thanks,
George
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