accepts_nested_attributes with Model.update for multiple models
- by Ohad
Hi,
I'm trying to follow http://railscasts.com/episodes/198-edit-multiple-individually but I would like to save objects which are nested (accepts_nested_attributes_for).
I've added the following in my controller:
def edit_multiple
@people = Person.find(params[:person_ids], :include => [:parameters])
end
def update_multiple
keys = params[:people].keys
if keys.empty?
flash[:error] = "Please select at least one person"
redirect_to :back and return
end
values = keys.map {|k| params[:people][k]}
@people = Person.update(keys,values).reject { |h| h.errors.empty? }
if @people.empty?
flash[:notice] = 'Updated people!'
redirect_to person_path
else
redirect_to edit_multiple_path
end
end
and in the view:
<% form_tag update_multiple_people_path, :method => :post do %>
<% for person in @people %>
<% fields_for "people[]", host do |f| %>
<%= f.error_messages :object_name => "person" %>
<h3><%= h person.name %></h3>
<% for parameter in person.parameters %>
<% f.fields_for "person_parameters[]", parameter do |builder| -%>
<%= render "common/parameters", :f => builder %>
<% end -%>
<% end -%>
<p><%= link_to_add_fields "Add a parameter", f, :person_parameters, "common/parameters" %></p>
<% end %>
<% end %>
<p><%= submit_tag "Edit these Parameter(s)" %></p>
<% end %>
but I'm always getting a mistmatch - e.g.
ActiveRecord::AssociationTypeMismatch and Parameter(#70341811965140) expected, got Array(#70341874300460)
Thanks!
