Rails 5: find_or_create_by not saving all the params - ruby-on-rails

Question

I have a form that should send info. One of the inputs is "empresa_id", and it's represented by a collection. I have checked in the server the form send the information I want. The thing is this field (only that one) is not saved when I run find_or_create_by. I've checked strong params and everything seem fine there.
SuscriptorsController
def create
#suscriptor = Suscriptor.new(suscriptor_params)
byebug #In this point #suscriptor.empresa_id has a correct value
if !#suscriptor.valid?
flash[:error] = "El email debe ser válido"
render 'new'
else
#suscriptor = Suscriptor.find_or_create_by(email: #suscriptor.email)
if #suscriptor.persisted?
if (#suscriptor.email_confirmation == true)
flash[:notice] = "Ya estás registrado/a"
redirect_to root_path
else
SuscriptorMailer.registration_confirmation(#suscriptor).deliver
end
else
flash[:error] = "Ha ocurrido un error. Contáctanos desde la sección contacto y explícanos"
render 'new'
end
end
private
def suscriptor_params
params.require(:suscriptor).permit(:email, :email_confirmation, :token_confirmation, :subtitle, :empresa_id)
end
Form view
<%= simple_form_for(#suscriptor) do |f| %>
<div class="input-group">
<div class="col-md-12">
<div class="form-group text">
<%= f.input :email, class: "form-control", placeholder: "tucorreo#email.com", required: true %>
<%= f.invisible_captcha :subtitle %>
<small id="emailHelp" class="form-text text-muted">Lo guardaremos y usaremos con cuidado.</small>
<%= f.input :empresa_id, collection: Empresa.all %>
</div>
<div class="input-group-append">
<%= f.submit "¡Hecho!", class: "btn btn-primary" %>
</div>
</div>
<% end %>
schema.rb
create_table "suscriptors", force: :cascade do |t|
t.string "email"
t.boolean "email_confirmation"
t.string "token_confirmation"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.integer "empresa_id"
end
suscriptor.rb
class Suscriptor < ApplicationRecord
belongs_to :empresa, optional: true
before_create :confirmation_token
attr_accessor :subtitle
VALID_EMAIL_REGEX = /\A[\w+\-.]+#[a-z\d\-.]+\.[a-z]+\z/i
validates :email, presence: true, length: { maximum: 255 }, uniqueness: { case_sensitive: false }, format: { with: VALID_EMAIL_REGEX }
def confirmation_token
if self.token_confirmation.blank?
self.token_confirmation = SecureRandom.urlsafe_base64.to_s
end
end
end

Answer 1

In your find_or_create_by, your pass only the #suscriptor.email, and reassing the #suscriptor variable with the created suscriptor.
According API dock, you should pass a block to 'create with more parameters':
Suscriptor.find_or_create_by(email: #suscriptor.email) do |suscriptor|
suscriptor.empresa_id = #suscriptor.empresa_id
end
Be careful to not reassign #suscriptor variable before use the parameters.
You can read more about find_or_create_by in https://apidock.com/rails/v4.0.2/ActiveRecord/Relation/find_or_create_by
Hope this helps!