Rails Simple_form HAML Error: No route matches?

Question

~~~ Solution found! ~~~ I changed my def new method in jean_controller.rb to

def new
    @jean = Jean.create(params[:id])
end

and capitalized my Model and Description inside my _form partial (to match the capitalize Model and Description inside my migration file)

Thanks for all the help everyone!

~~~~~~~~~~~~~~~~~

So I have looked extensively for a solution to my problem, but to no avail. It drove me to create an account specifically to ask this question. I am using rails 4.2.0

I am using this tutorial https://mackenziechild.me/12-in-12/4/ to build a Pinterest clone, but I run into this error with my _form.html.haml partial:

ActionController::UrlGenerationError in Jeans#new /app/views/jeans/_form.html.haml where line #1 raised: No route matches {:action=>"show", :controller=>"jeans"} missing required keys: [:id]

I've tried a variety of solutions with input_html:, changing my models, jeans_controller...etc

Here is my partial code: (the first line is indented correctly, but I don't know how to get it to display properly on stackoverflow)

= simple_form_for @jean, html: { multipart: true } do |f|
- if @jean.errors.any?
    #errors
        %h2
            = pluralize(@jean.errors.count, "error")
            prevented this Jean Model from saving
        %ul
            - @jean.errors.full_messages.each do |msg|
                %li= msg

.form-group
    = f.input :model, input_html: { class: 'form-control' }

.form-group
    = f.input :description, input_html: { class: 'form-control' }

.form-group
    = f.input :price, input_html: { class: 'form-control' }

= f.button :submit, class: "btn btn-primary"

and here is my controller code:

class JeansController < ApplicationController

def index
end

def show
    @jean=Jean.find(params[:id])
end

def new
    @jean = Jean.new
end

def create
    @jean = Jean.new(jean_params)
end

private

def jean_params
    params.require(:jean).permit(:model, :description, :price)
end
end

and my routes.rb

Rails.application.routes.draw do
  resources :jeans
  root "jeans#index"
end

Can anyone help me? :(:

Do you have any link in your _form partial to your jean? like to show it? — Yan Foto
I just have: (ignore the ; it represents the next line) %h1 New Jeans; = render 'form'; = link_to "Back", root_path — nvrpicurnose
I found the solution! I changed my def new method to def new @jean = Jean.create(params[:id]) end and edited my _form to capitalize Model and Description because it is capitalized in my migration file. Thanks for all the help everyone! — nvrpicurnose
This solution started to create empty records in my database, how did you avoid it? — Rodrigo Ferrari

Ahmad Al-kheat Ahmad Al-kheat · Accepted Answer · 2015-01-30T04:37:08

You need to create a show action in your controller to show the newly posted jean, basically add this to your controller :

def show
  @jean=Jean.find(params[:id])
end

You also need to change your create action to

def create
  @jean = Jean.create(jean_params)
end

Rails Simple_form HAML Error: No route matches?

1 Answers