Ruby on Rails app - Adding multiple dynamic input field - ruby-on-rails

Question

I'm a Rails newbie, and I have a RoR app that I'm working on, the app is supposed to allow invited guests to RSVP to a wedding.
I have allowed for fields to be dynamically added, in order to include additional guests (family of an invited guest). But when I add the dynamic field and add the names, only the last name is displayed in the index.
Is there anything specific I need to do to render all other names together in a field within the table?
This is my current controller thus far:
class GuestsController < ApplicationController
skip_before_filter :authenticate_user!, only: [:new, :create]
def index
#guests = Guest.all
end
def new
#guest = Guest.new
end
def create
#guest = Guest.all
#guest = Guest.create(guest_params)
if #guest.save
respond_to do |format|
format.html { redirect_to :back, notice: 'Thank you for replying' }
format.js
end
else
respond_to do |format|
format.html { render 'new' }
format.js
end
end
end
def destroy
#guest = Guest.find(params[:id])
#guest.destroy
redirect_to guests_path
end
private
def guest_params
params.require(:guest).permit(:status, :name, :message)
end
end

Answer 1

Place Guest in place of User
users controler
def new
#users = []
5.times do
#users << User.new
end
end
if params.has_key?("user")
User.create(users_params(params["user"]))
else
params["users"].each do |user|
if user["name"] != nil || user["age"] != nil
User.create(users_params(user))
end
end
end
def users_params(my_params)
my_params.permit(:name, :age)
end
users_form
<%= form_tag users_path do %>
<% #users.each do |user| %>
<%= fields_for 'users[]', user do |u| %>
<div class="field">
<%= u.label :name %><br>
<%= u.text_field :name %>
</div>
<div class="field">
<%= u.label :age %><br>
<%= u.number_field :age %>
</div>
<% end %>
<% end %>
<div class="actions">
<%= submit_tag %>
</div>
<% end %>