rails 6 save data to multiple tables from one controller - ruby-on-rails

Question

I'm still really new to rails. I have a site that allows tournament directors to host online registration. When they setup the registraiton form they can add custom fields for different section like basic info, division, etc. That part is working but when the user goes to the registraiton form, I am able to pull the fields into the form but I don't know how to save them to a separate table. I have a participants table and the custom fields are in a fields table.
When a user registers or edits their registraion info, how do I save the input for the custom fields into a separate table. I have a table called field_answers with participant_id, field_id and answer, but can't figure out how to save the answers from the participants_controler.
Below is the form for the basic section of the registraiton form. The #basic.each section is where the custom fields are being pulled in, and I'm guessing I'll need to give the fields unique names rather than just answer then save them but I don't know how to do that.
<%= form_with model: [#event, #participant], class: "shadow p-3 mb-3 rounded text-dark", local: true do |f| %>
<%= f.hidden_field :child_id, value: #cid %>
<%= f.hidden_field :user_id, value: current_user.id %>
<%= f.hidden_field :event_id, value: #tID %>
<%= f.hidden_field :basic_complete, value: 1 %>
<div class="form-group row">
<div class="col-md-2 col-sm-12 col-form-label">
<%= f.label :first_name %>:<span class="text-danger">*</span>
</div>
<div class="col-md-10 col-sm-12">
<%= f.text_field :first_name, class: 'form-control', value: #part.first_name, placeholder: "First name" %>
</div>
</div>
<div class="form-group row">
<div class="col-md-2 col-sm-12 col-form-label">
<%= f.label :last_name %>:<span class="text-danger">*</span>
</div>
<div class="col-md-10 col-sm-12">
<%= f.text_field :last_name, class: 'form-control', value: #part.last_name, placeholder: "Last name" %>
</div>
</div>
<div class="form-group row">
<div class="col-md-2 col-sm-12 col-form-label">
<%= f.label :date_of_birth %>:<span class="text-danger">*</span>
</div>
<div class="col-md-10 col-sm-12">
<%= f.date_field :dob, class: 'form-control', value: #part.dob, placeholder: "Date of Birth" %>
</div>
</div>
<div class="form-group row">
<div class="col-md-2 col-sm-12 col-form-label">
<%= f.label :gender %>:<span class="text-danger">*</span>
</div>
<div class="col-md-10 col-sm-12">
<label class="main">Female
<%= f.radio_button :gender, "female", checked: true if #part.gender == "female" %>
<span class="w3docs"></span>
</label>
<label class="main">Male
<%= f.radio_button :gender, "male", checked: true if #part.gender == "male" %>
<span class="w3docs"></span>
</label>
</div>
</div>
<div class="form-group row">
<div class="col-md-2 col-sm-12 col-form-label">
<%= f.label :address1 %>:<span class="text-danger">*</span>
</div>
<div class="col-md-10 col-sm-12">
<%= f.text_field :address1, class: 'form-control', value: #part.address1, placeholder: "Address 1" %>
</div>
</div>
<div class="form-group row">
<div class="col-md-2 col-sm-12 col-form-label">
<%= f.label :address2 %>:<span class="text-danger">*</span>
</div>
<div class="col-md-10 col-sm-12">
<%= f.text_field :address2, class: 'form-control', value: #part.address2, placeholder: "Address 2" %>
</div>
</div>
<div class="form-group row">
<div class="col-md-2 col-sm-12 col-form-label">
<%= f.label :city %>:<span class="text-danger">*</span>
</div>
<div class="col-md-10 col-sm-12">
<%= f.text_field :city, class: 'form-control', value: #part.city, placeholder: "City" %>
</div>
</div>
<div class="form-group row">
<div class="col-md-2 col-sm-12 col-form-label">
<%= f.label :state %>:<span class="text-danger">*</span>
</div>
<div class="col-md-10 col-sm-12">
<%= f.text_field :state, class: 'form-control', value: #part.state, placeholder: "State" %>
</div>
</div>
<div class="form-group row">
<div class="col-md-2 col-sm-12 col-form-label">
<%= f.label :country %>:<span class="text-danger">*</span>
</div>
<div class="col-md-10 col-sm-12">
<%= f.text_field :country, class: 'form-control', value: #part.country, placeholder: "Country" %>
</div>
</div>
<div class="form-group row">
<div class="col-md-2 col-sm-12 col-form-label">
<%= f.label :zip %>:<span class="text-danger">*</span>
</div>
<div class="col-md-10 col-sm-12">
<%= f.text_field :zip, class: 'form-control', pattern: "[0-9]*", value: #part.zip, placeholder: "Postal Code" %>
</div>
</div>
<div class="form-group row">
<div class="col-md-2 col-sm-12 col-form-label">
<%= f.label :phone %>:<span class="text-danger">*</span>
</div>
<div class="col-md-10 col-sm-12">
<%= f.text_field :phone, class: 'form-control', pattern: "[0-9]{3}-[0-9]{3}-[0-9]{4}", maxlength: "12", value: #part.phone, placeholder: "Phone" %>
</div>
</div>
<% #basic.each do |b| %>
<div class="form-group row">
<div class="col-md-2 col-sm-12 col-form-label">
<%= f.label b.name %>:<span class="text-danger">*</span>
</div>
<div class="col-md-10 col-sm-12">
<%= f.text_field :answer, class: 'form-control' %>
<%= f.hidden_field :field_id, value: b.id %>
<%= f.hidden_field :event_id, value: #tID %>
</div>
</div>
<% end %>
<div class="form-group row">
<div class="col-md-8 col-sm-12"></div>
<div class="col-md-4 col-sm-12">
<%= f.submit "Register", class: "profile_btn" %>
</div>
</div>
<% end %>
Here is my participants_controller.rb:
class ParticipantsController < ApplicationController
before_action :event
before_action :participant, only: %i[create]
def new
#participant = #event.participants.new
if current_user
#user = User.find(current_user.id)
#children = #user.children
end
#basic = Field.where(event_id: #event.id, field_type: 'basic')
end
def create
byebug
if #participant.save
flash[:success] = 'Child was successfully created.'
#redirect_to edit_event_participant_path(#participant.id)
redirect_to "/events/#{#event.id}/participants/#{#participant.id}/edit?rt=#{#participant.child_id != nil ? 'child' : 'self'}&step=2"
else
byebug
flash[:notice] = #participant.errors.full_messages.join('<br />').html_safe
redirect_back(fallback_location: events_path)
end
end
def show
end
def edit
#participant = Participant.find(params[:id])
#child = Child.find(#participant.child_id)
#custom_basic = Field.find_by(event_id: #participant.event_id, field_type: 'basic')
end
def update
end
private
def event
#event = Event.find_by(id: params[:event_tourn_url])
end
def participant
#participant = event.participants.new(participant_params)
end
def participant_params
params.require(:participant).permit(:event_id, :user_id, :child_id, :first_name, :last_name, :dob, :gender, :address1, :address2, :city, :state, :country, :zip, :phone, :basic_complete)
end
end
I'd appreciate any help.
Edit:
I edited my participant_params in the controller to:
def participant_params
params.require(:participant).permit(:event_id, :user_id, :child_id, :first_name, :last_name, :dob, :gender,
:address1, :address2, :city, :state, :country, :zip, :phone,
participant_fields_attributes: [:id, :participant_id, :field_id, :answer])
end
And my participants model is:
class Participant < ApplicationRecord
belongs_to :event
has_many :participant_fields
accepts_nested_attributes_for :participant_fields
When I submit all the correct fields are added to the participants table but nothing to the participant_fields table. And in the logs I get Unpermitted
parameters: :answer, :field_id