passing an id from one controller to another - RAILS 5

How can I automatically place/pass the product_id in the input field?

i have 2 tables products & capturepages in my

schema

products
t.string "name"
t.string "description"

capturepages
t.string "name"
t.string "email"
t.integer "product_id"


models

product.rb
has_many :capturepages

capturepage.rb
belongs_to :product


capturepages controller

class CapturepagesController < ApplicationController
before_action :set_capturepage, only: [:show, :edit, :update, :destroy]

def new
@capturepage = Capturepage.new
@product_id = params[:product_id]
@product = Product.find(params[:product_id])
end

def create
@capturepage = Capturepage.new(capturepage_params)
@product = @capturepage.product
respond_to do |format|
if @capturepage.save
format.html redirect_to @product.affiliatecompanylink, notice: 'Capturepage was successfully created.'
format.json render :show, status: :created, location: @capturepage
else
format.html render :new
format.json render json: @capturepage.errors, status: :unprocessable_entity
end
end
end


private
def set_capturepage
@capturepage = Capturepage.find(params[:id])
end

def capturepage_params
params.require(:capturepage).permit(:name, :email, :product_id)
end
end


views/products.show.html.erb

when the user clicks on the below link:

<%= link_to "buy now", new_capturepage_path(product_id: @product.id), target:"_blank" %>


they are directed to the capturepage form page

views/capturepages/_form.html.erb

<%= simple_form_for(@capturepage) do |f| %>
<%= f.error_notification %>

<div class="form-inputs">
<%= f.input :product_id, value: @product_id %>
<%= f.input :name, placeholder: "Your Name", label: false %>
<%= f.input :email, placeholder: "Your Email", label: false %>
</div>

<div class="form-actions">
<%= f.button :submit, "get product" %>
</div>
<% end %>


the url states: http://localhost:3000/capturepages/new?product_id=1
capturing the product_id but the product_id input is empty:

http://localhost:3000/capturepages/new?product_id=1

1 Answer
1

As you are using simple_form, you should place value inside input_html. Below code should fix your problem

simple_form

value

input_html

<%= f.input :product_id, input_html: value: @product_id %>


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