Wicked gem cannot find wedding ID in update action

问题

I'm trying to implement the 'Wicked' gem for wizards and cannot figure out this error for the life of me. Already referenced Ryan bates railscast #346 and the step by step tutorial by schneems.

I have 2 controllers: Weddings and Wedding_steps. The user initially creates a Wedding and after the create action is redirected to the Wedding_steps controller (which uses Wicked) to update the wedding model with additional info.

The wedding_id is successfully detected in the first step weddingdetails, but after submitting that step, I get the following error:

ERROR

ActiveRecord::RecordNotFound in WeddingStepsController#update

Couldn't find Wedding without an ID: app/controllers/wedding_steps_controller.rb:11:in `update'

Parameters:

{"utf8"=>"✓", "_method"=>"put", "authenticity_token"=>"JMd+8gf4rVqOSNMSFrKcD3WxK+X3zvYliSMWqTg0SkE=", "wedding"=>{"bridename"=>"", "groomname"=>"", "weddingdate"=>"", "weddingcity"=>"", "weddingstate"=>"", "url"=>""}, "commit"=>"Next", "id"=>"wedding_id=11"}

It is supposed to continue to the next step /wedding_steps/eventdetails?wedding_id=11 but instead gives the error and goes to /wedding_steps/wedding_id=11

Also of note is that without the Update action in place, the information successfully saves and redirects to the Wedding Show action.

Here is the relevant code:

wedding_steps_controller.rb

class WeddingStepsController < ApplicationController
include Wicked::Wizard
steps :weddingdetails, :eventdetails

def show
    @wedding = Wedding.find(params[:wedding_id])
    render_wizard
end

def update
    @wedding = Wedding.find(params[:wedding_id])
    @wedding.update_attributes(params[:wedding])
    render_wizard @wedding
end

end

weddings_controller.rb

def create
@wedding = current_user.weddings.new(params[:wedding])


respond_to do |format|
  if @wedding.save
    format.html { redirect_to wedding_steps_path(:id => "weddingdetails", :wedding_id => @wedding.id) }
    format.json { render json: @wedding, status: :created, location: @wedding }
  else
    format.html { render action: "new" }
    format.json { render json: @wedding.errors, status: :unprocessable_entity }
  end
end
end

STEP 1: wedding_steps/weddingdetails.html.erb

<%= simple_form_for(@wedding, :url => wizard_path(wedding_id: @wedding.id), :method => :put, html: { class: 'form-horizontal'}) do |f| %>
<%= f.error_notification %>
<div class="form-inputs">


<div class="formrow center">
  <%= f.input :bridename, placeholder: "The Bride's Name", label: false %>
  <h2 class="inline">  &</h2>
  <%= f.input :groomname, placeholder: "The Groom's Name", label: false %>
</div>


<div class="formrow center">
  <%= f.text_field :weddingdate %> 
  <!-- OLD STYLE DATE FORMAT <%= f.input :weddingdate, label: "Wedding Date" %> -->
  <%= f.input :weddingcity, label: "City" %>
  <%= f.input :weddingstate, label: "State" %>
</div>


<div class="formrow center"> 
  <%= f.input :url, placeholder: "i.e. 'johnandkate' ", label: false %> 
</div>

</div>


<div class="form-actions center">
<%= f.button :submit, value: "Next" %>
</div>



<% end %>

<%= link_to 'skip', next_wizard_path(wedding_id: @wedding.id) %>

STEP 2: wedding_steps/eventdetails.html.erb

EVENT DETAILS STEP <!--PLACEHOLDER FOR NOW -->

Routes.rb

Jobshop::Application.routes.draw do    
    resources :pins
    resources :weddings
    resources :wedding_steps  

    get "users/show"

    root :to => 'pages#home'
    get 'about' => 'pages#about'

    devise_for :admin_users, ActiveAdmin::Devise.config
    ActiveAdmin.routes(self)

    resources :inviterequests


    devise_for :views
    ActiveAdmin.routes(self)

    devise_for :users
    ActiveAdmin.routes(self)

    match 'users/:id' => 'users#show'

回答1:

This line:

<%= simple_form_for(@wedding, :url => wizard_path, :method => :put, html: { class: 'form-horizontal'}) do |f| %>

Should be:

<%= simple_form_for(@wedding, :url => wizard_path(wedding_id: @wedding.id), :method => :put, html: { class: 'form-horizontal'}) do |f| %>

Note the wizard_path(wedding_id: @wedding.id) When you submit the form you should see parameters = {:wedding_id => some_number} in the logs.

Paste the output of the params for the update action if it doesn't work.

Edit:

You should have ":wedding_id" as part of the required url this will make it impossible to even generate a link to that controller unless it has a properly formatted url.

Replace this

resources :wedding_steps

with this

  scope "weddings/:wedding_id" do
    resources :wedding_steps
  end

So now a correct url would look like weddings/83/wedding_steps/weddingdetails. Likely one or more of your view helpers isn't including wedding_id properly and with this new constraint you will raise an error in the view, but this is a good thing since it will show you where the malformed link is.

回答2:

I tried the solution provided by Schneems, however it is not running completely without errors. I implemented the following way.

Change

resources :wedding_steps

scope "weddings/:wedding_id" do
  resources :wedding_steps
end

The problem is parameters are displayed as forbidden based on the error that has been thrown as ActiveModel::ForbiddenAttributesError

To get rid off this,

Change

def update
  @wedding = Wedding.find(params[:wedding_id])
  @wedding.update_attributes(params[:wedding])
  render_wizard @wedding
end

def update
  @wedding = Wedding.find(params[:wedding_id])
  @wedding.update_attributes(wedding_params)
  render_wizard @wedding
end

private 
def wedding_params
  params.require(:wedding).permit(........your parameters here.................)
end

来源：https://stackoverflow.com/questions/18175301/wicked-gem-cannot-find-wedding-id-in-update-action

标签

ruby-on-rails

Wizard

wicked-gem