No route matches, missing required keys - ruby-on-rails

Question

I'm currently working on rails 5 project in which I want to add a passenger to a transportation. In the in the passengers controller index action I set transportation to be search by the params id. But it returns nil even though it has been created.
Here are the routes:
user_protest_transportation_passengers GET /users/:user_id/protests/:protest_id/transportations/:transportation_id/passengers(.:format) passengers#index
POST /users/:user_id/protests/:protest_id/transportations/:transportation_id/passengers(.:format) passengers#create
new_user_protest_transportation_passenger GET /users/:user_id/protests/:protest_id/transportations/:transportation_id/passengers/new(.:format) passengers#new
edit_user_protest_transportation_passenger GET /users/:user_id/protests/:protest_id/transportations/:transportation_id/passengers/:id/edit(.:format) passengers#edit
user_protest_transportation_passenger GET /users/:user_id/protests/:protest_id/transportations/:transportation_id/passengers/:id(.:format) passengers#show
PATCH /users/:user_id/protests/:protest_id/transportations/:transportation_id/passengers/:id(.:format) passengers#update
PUT /users/:user_id/protests/:protest_id/transportations/:transportation_id/passengers/:id(.:format) passengers#update
DELETE /users/:user_id/protests/:protest_id/transportations/:transportation_id/passengers/:id(.:format) passengers#destroy
user_protest_transportations GET /users/:user_id/protests/:protest_id/transportations(.:format) transportations#index
POST /users/:user_id/protests/:protest_id/transportations(.:format)
Here is the link:
<div class="card">
<div class="card-block">
<h3 class="card-title">Need A Ride?</h3>
<p class="card-text">Find people near you willing to share a seat who are coming to the event. We are all in this together!.</p>
<%= link_to 'Get A Ride', new_user_protest_transportation_passenger_path(#user, #protest, #transportation), class: "btn btn-primary" %>
</div>
</div>
Here is the passengers controller:
class PassengersController < ApplicationController
def index
#transportation = Transportation.find(params[:transportation_id])
end
def new
end
def create
#passenger = Passenger.new(passenger_params)
#user = User.find(current_user.id)
#transportation = Transportation.find(params[:transportation_id])
#driver = User.find(#transportation.transporter_id)
#protest = Protest.find(#transportation.destination_id)
#transportations = Transportation.where(destination_id: #protest.id)
has_ride = false
#transportations.each do |transportation|
passenger = Passenger.find_by user_id: current_user.id
unless (passenger.nil?)
has_ride = true
end
end
if has_ride
redirect_to protests_path, notice: "You already have a ride."
return
end
respond_to do |format|
if #passenger.save
format.html { redirect_to user_protest_transportation_passenger_path(id: #passenger.id), notice: 'Passenger was successfully created.' }
else
format.html { render :new }
end
end
end
def show
#driver = get_driver
if #driver
#transportation = Transportation.where(transporter_id: #driver.id).first!
#protest = Protest.find(#transportation.destination_id)
end
end
def edit
end
def update
end
def destroy
#passenger = Passenger.find_by(user_id: params[:user_id], transportation_id: params[:transportation_id])
if #passenger
#passenger.destroy
redirect_to user_protests_path, notice: 'Ride was canceled.'
else
redirect_to user_protest_transportations_path, notice: 'Error: the passenger record failed to delete.'
end
end
private
def get_driver
driver = nil
p = Passenger.find_by(user_id: current_user.id, transportation_id: params[:transportation_id])
t = Transportation.find(params[:transportation_id])
driver = User.find(t.transporter_id)
end
def passenger_params
params.permit(:user_id, :transportation_id)
end
end
I am trying to get the transportation id in the params, I tried find with session[transportation_id] but didn't seem to work.
protest controller:
class ProtestsController < ApplicationController
def index
#protests = Protest.all
end
def show
#protest = Protest.find(params[:id])
#user = current_user
end
def new
#protest = Protest.new
end
def edit
#protest = Protest.find(params[:id])
end
def create
#protest = Protest.new(protest_params)
#protest.creator = current_user
respond_to do |format|
if #protest.save
format.html { redirect_to #protest, notice: 'Protest was successfully created.' }
else
format.html { render :new }
end
end
end
def update
#protest = Protest.find(params[:id])
respond_to do |format|
if #protest.update(protest_params)
format.html { redirect_to #protest, notice: 'Protest was successfully updated.' }
else
format.html {render :edit }
end
end
end
def destroy
#protest = Protest.find(params[:id])
#protest.destroy
redirect_to protests_path
end
private
def protest_params
params.require(:protest).permit(:name, :description, :location, :starts_at, :creator, :image)
end
end