Ruby on Rails how to use form input in another method?

Question

I am working on a hotdesking app where the users would check_availability (check_availability.html.erb) of the desks based on the date range chosen and choose from a list of available desk (new.html.erb) before it gets saved in the database.

How can i use the form input in check_availability and use it under my 'new' method?

bookings_controller.rb

class BookingsController < ApplicationController
	
	def index
	end
		
	def check_availability
	end

	def new
		@booking = Booking.new(booking_params)
		@booking.date_range(params[:book_from], params[:book_to])
	end

	def create
	end

	def show
	end

	private

	def booking_params
		params.permit(:book_from, :book_to, :wing, :section, :number, :user_id)
	end
end

booking.rb

class Booking < ApplicationRecord
	belongs_to :user, optional: true
	belongs_to :desk, optional: true
	accepts_nested_attributes_for :desk, allow_destroy: true
	cattr_accessor :current_user
	attr_accessor :book_from, :book_to

	def check_availability
		counter = 0
		Booking.all.each do |b|
			current_date = Date.today
			booked_start_date = b.book_from
			booked_end_date = b.book_to
			if b.user_id == current_user.id && current_date <= booked_end_date && booked_start_date <= current_date
				counter += 1
			end
		end
		puts counter
	end
	
	def date_range(book_from, book_to)
		a = []
		a.push(book_from)
		a.push(book_to)
		puts a
	end

routes.rb

Rails.application.routes.draw do

  devise_scope :user do
  	authenticated :user do
  		root 'bookings#index', as: :authenticated_root
  	end

  	unauthenticated do
  		root 'devise/sessions#new', as: :unauthenticated_root
  	end
  end

  devise_for :users
  
  resources :desks

  post '/users/:user_id/bookings/:id', :to => 'bookings#show'
  post '/users/:user_id/bookings/new', :to => 'bookings#new'

  resources :users do
    resources :bookings do
      collection do
        get :check_availability
      end
    end
  end
end

check_availability.html.erb

<div class="container-fluid">
    <div class="row">
      <div class='col-sm-6 col-sm-offset-3'>
        <h1>Check Availability</h1><hr />
      </div>

      <div class='col-sm-6 col-sm-offset-3'>
        <%= form_tag new_user_booking_path, multipart: true do %> 
          <div class='form-group'>
            <span class='not-bold'><%= label_tag :book_from, "Book From" %>: </span></br>
            <span class='date-select'><%= date_select :book_from, class:  'form-control' %></span>
          </div>

          <div class='form-group'>
            <span class='not-bold'><%= label_tag :book_to, "Book To" %>: </span><br />
            <span class='date-select'><%= date_select :book_to, class:  'form-control' %></span>
          </div>

          <%= submit_tag "Check Availability", class: "btn" %>
          <% end %>
      </div>

  <br />

<div class='col-sm-6 col-sm-offset-3'>
  <br /> 
  <hr />
    <button type="button" class="button">
      <%= link_to "My Bookings", authenticated_root_path %>
    </button>
    
    <button type="button" class="button">
      <%= link_to "Book Desk", new_user_booking_path(current_user) %>
    </button>
</div>

if you use check_avalability.html.erb in multiple views, include it in a partial. Create a view views/bookings/new.html.erb, create a route path in route.rb get '/bookings/new', => 'bookings#new' or use resources :bookings. Inside the view new.html.erb you can render the partial — fabOnReact
– fabOnReact, Commented Mar 11, 2017 at 11:03
Thanks @FabrizioBertoglio! It was a routing issue. I changed the form_tag route in my check_availability.html.erb file to <%= form_tag(new_user_booking_path, method: "get", class: "bookings") do %> and i can now access the form inputs through the controller with params. — mandy
– mandy, Commented Mar 11, 2017 at 17:28
Yes, right. That was the real problem. Your form should do a GET request instead of a PUT request. Actually I understand this now and Thanks for explaining it to me. I totally think you should give yourself an answer, it can be useful for many of us and If you have additional problem write it down in this discussion as I may have similar too! — fabOnReact
– fabOnReact, Commented Mar 11, 2017 at 17:59
@FabrizioBertoglio I am still very new to coding and stackoverflow! I just posted an answer. I am actually still struggling to understand routing especially in a nested resources. So now i am trying to save my form in "new" and show the booking details on "show". <%= form_tag user_booking_path(current_user.id, :id), multipart: true do %> returns /users/2/bookings/id. Any idea how i should resolve this? It should be /users/:user_id/bookings/:id. — mandy
– mandy, Commented Mar 11, 2017 at 18:27
I am not sure of the problem you are having. Usually this are the step that you should have: 1. GET request for "/booking/new" => "bookings#new" 2. POST request "booking" => "bookings#create" With the post request you save to the database your details 3. GET request "booking/:id" => "bookings#show" Hear you have the show request I think with nested resource it is just the same. The best thing you can do is rewrite your question with clear explanation of the issue. — fabOnReact
– fabOnReact, Commented Mar 11, 2017 at 18:36

mandy · Accepted Answer · 2017-03-11 18:24:16Z

1

It took me lots of tries to figure this out!

I realised it was a routing issue. The form should be doing a GET instead of a PUT request.

I changed the form_tag route in my check_availability.html.erb file to <%= form_tag(new_user_booking_path, method: "get", class: "bookings") do %> and i can now access the form inputs through the controller with params.

answered Mar 11, 2017 at 18:24

mandy

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