extjs - Netzke Has many relation and rails fields_for -

i have simple has_many relation can implemented rails fields_for. looking same behavior netzke.

here classes:

class question < activerecord::base   attr_accessible :description, :title   validates_presence_of :title, :description    has_many :question_options   accepts_nested_attributes_for :question_options 

end

class questionoption < activerecord::base   attr_accessible :title, :question   validates_presence_of :title    belongs_to :question 

end

here form building:

class questionform < netzke::basepack::form    js_configure |c|     c.mixin   end    def configure(c)     super     record.build_for_editing if record.present?     c.model = 'question'     c.title = 'question'     c.items = [:title, :description]   end     end 

upto point form working fine. can't figure out way implement has_many behavior in rails fields_for

can 1 guide me how use netzke scenario.

are trying implement master-detail/one-to-many editing? if so, example given in netzke demo application (see bosses , clerks in http://netzke-demo.herokuapp.com/).

you need create 3 components:

• question component (master) inheriting netzke::basepack::grid
• questionoption component (details) inheriting from
• netzke::basepack::grid composite component combining previous two
  components , adding javascript sync them.

first, questionoption model must allow access id of master table (netzke thing, without not work).

class questionoption < activerecord::base   attr_accessible :title, :question_id   validates_presence_of :title   belongs_to :question end 

this components code:

class questions < netzke::basepack::grid   def configure(c)     super     c.model = 'question'     c.items = [       :description,       :title     ]   end end  class questionoptions < netzke::basepack::grid   def configure(c)     super      c.strong_default_attrs = {question_id: c.question_id}     c.scope = {question_id: c.question_id}      c.model = 'questionoption'     c.columns = [       { name: :title, header: 'option title'}     ]   end end  class questionsandoptions < netzke::base   def configure(c)     super     c.items = [:questions, :question_options]   end    js_configure |c|     c.layout = :border     c.border = false     c.height = '100%'      c.init_component = <<-js       function() {         this.callparent();         var questions = this.netzkegetcomponent('questions');         var question_options = this.netzkegetcomponent('question_options');          questions.on('itemclick', function(view, record) {           this.selectquestion(record.get('id'));           question_options.getstore().load();         }, this);       }     js   end    endpoint :select_question |id, this|     component_session[:selected_question_id] = id   end    component :questions |c|     c.region = :center   end    component :question_options |c|     c.region = :south     c.question_id = component_session[:selected_question_id]     c.height = '50%'   end end 

please try , let me know if need. sorry if misunderstood question.

regards

drazen