A way to get names from ids when in create action - ruby-on-rails

Question

So I have 3 cascading drop down lists - Brand, Year and Model. And I have a Boat model.But boat model is not associated with the 3 cascading drop downs. User selects drop downs and rails #create the boat. The problem is I have the ids of the drop down selected items. My #create is;
def create
#boat = current_user.boats.new(boat_params) if logged_in?
if #boat.save
flash[:success] = "Boat created!"
render 'edit'
else
render 'new'
end
end
and boat_params
def boat_params
params.require(:boat).permit(:brand, :year, :model)
end
When I click next button it saves the ids it is because of the #create action i believe.
Here is #new.html
<% provide(:title, 'List My Boat') %>
<div class="container">
<div class="row">
<div class="col-md-6 col-md-offset-3">
<%= form_for(#boat) do |f| %>
<%= render 'shared/error_messages', object: f.object %>
<div class="col-md-6">
<%= f.label :Brand %>
<%= f.collection_select(:brand, Brand.all, :id, :name, {:prompt => "Select a Brand"}, {:id => 'brands_select'}) %>
</div>
<div class="col-md-6">
<%= f.label :Year %>
<%= f.collection_select(:year, Year.all, :id, :name, {:prompt => "Select a Year"}, {:id => 'years_select'}) %>
</div>
<div class="col-md-6">
<%= f.label :Model %>
<%= f.collection_select(:model, Model.all, :id, :name, {:prompt => "Select a Model"}, {:id => 'models_select'}) %>
</div>
<div class="col-md-6 col-md-offset-3">
<%= f.submit "Next", class: "btn btn-primary"%>
</div>
<% end %>
</div>
</div>
</div>
<script>
$(document).ready(function() {
$('#brands_select').change(function() {
$.ajax({
url: "<%= update_years_path %>",
data: {
brand_id : $('#brands_select').val()
},
dataType: "script"
});
});
$('#years_select').change(function() {
$.ajax({
url: "<%= update_models_path %>",
data: {
year_id : $('#years_select').val()
},
dataType: "script"
});
});
});
</script>
Here is the full #boats controller
class BoatsController < ApplicationController
def new
#boat = Boat.new
end
def create
#boat = current_user.boats.new(boat_params) if logged_in?
if #boat.save
flash[:success] = "Boat created!"
render 'edit'
else
render 'new'
end
end
def show
end
def edit
#boat = Boat.find(params[:id])
end
def update
end
def update_years
# updates year and model based on brand selected
brand = Brand.find(params[:brand_id])
# map to name and id for use in our options_for_select
#years = brand.years.map{|a| [a.name, a.id]}.insert(0, "Select a Year")
#models = brand.models.map{|s| [s.name, s.id]}.insert(0, "Select a Model")
end
def update_models
# updates model based on year selected
year = Year.find(params[:year_id])
#models = year.models.map{|s| [s.name, s.id]}.insert(0, "Select a Model")
end
private
def boat_params
params.require(:boat).permit(:brand, :year, :model)
end
end

Answer 1

It's because f.collection_select(...) takes :id as key for brand, model and year. If you insist on using :name as a key try this:
f.collection_select(:brand, Brand.all, :name, :name, {:prompt => "Select a Brand"}, {:id => 'brands_select'})