I have been unable to figure out how to update a list of model instances and their associations and I have looked in the documentation, which doesnt give an example of what I am trying to do:
I would assume this is a common task though.
I have an established association:
class AlertRule < ActiveRecord::Base
has_many :notification_emails, :dependent => :destroy accepts_nested_attributes_for :notification_emails end
class NotificationEmail < ActiveRecord::Base belongs_to :alert_rule end
Controller:
def alerts_config
//more code @alert_rules = alert_rules.flatten @alert_rules.each { |a| a.notification_emails.build }
render :partial => 'home/alerts_config', :layout => false
View:
= form_tag '/home/save_alerts_config/' + @unit.id.to_s, :remote => true, :class => 'ajaxForm' do %table.scrollTable{:cellspacing => "0", :width => "740px", :style => "border-collapse: collapse; border-spacing: 0;"} %thead.fixedHeader %tr %th Alerts %th Enable %th Primary Email %th Notification Emails %th %tbody.scrollContent - for rule in @alert_rules = fields_for :alert_rules, rule do |f| %tr %td= rule.alert_code.name %td= check_box_tag "enabled_ids", rule.id %td= f.text_field :email, :value => rule.email, :index => rule.id %td.fields = f.fields_for :notification_emails do | notification_builder| = notification_builder.text_field :email
