Rails insert into model and association .. confused - ruby-on-rails

Question

I'm confused writing my backend for the barangay profiles. In my form there is a field where ask to input the your barangay then when it save the barangay field will be save at the barangay model. In the brgyprofile it is associated to barangay model where the id of barangay model is FK of brgyprofile model. How can I save the data in barangay model. I already try to twerk it but nothing happens. brgy_name didn't save in the barangay model. I'm confuse how. I'm really new to rails and trying to create an app.
routes.rb
resources :brgyadmins do
resources :brgyprofiles
end
models
class Brgyprofile < ActiveRecord::Base
belongs_to :barangay
belongs_to :brgyadmin
end
class Barangay < ActiveRecord::Base
has_one :brgyprofile
end
_form.html.erb
<%= simple_form_for ([#brgyadmin,#new_profile]) do |f| %>
<%= f.input :firstname, placeholder: 'Firstname' %>
<%= f.input :lastname, placeholder: 'Lastname' %>
<%= f.input :birthdate, :order => [:month, :day, :year] %>
<%= f.input :gender,
:as => :radio_buttons,
:collection => %w[Female Male]
%>
<%= f.input :brgy_name, placeholder: 'Barangay' %>
<%= f.input :brgy_position, placeholder: 'Barangay Position' %>
<%= f.input :contact_number, placeholder: 'Contact Number' %>
<%= f.button :submit, 'Submit' %>
<% end %>
brgyprofile controller
class BrgyprofilesController < ApplicationController
before_action :set_brgyprofile, only: [:new, :create]
def new
#new_profile = #brgyadmin.build_brgyprofile
end
def create
#respond_to do |format|
if #brgyadmin.create_brgyprofile(profile_params) && Barangay.create(brgy_name: params[:brgy_name])
logger.info "Saved!"
else
logger.info "Nothing happens"
end
#end
end
private
def set_brgyprofile
#brgyadmin = Brgyadmin.find(session[:user_id])
end
def profile_params
params.require(:brgyprofile).permit(:firstname, :lastname, :birthdate, :gender, :brgy_position, :contact_number, :barangay_id, :brgy_name)
end
end