Odd Rails Routing errors - ruby-on-rails

I am getting an undefined method stripe_managed_accounts_path when trying to create a new resource via typical rails forms. Below is my code, I am dumbfounded, cannot figure it out.
Controller
class StripeManagedAccountsController < ApplicationController
before_action :authenticate_printer!
def new
#stripe_managed_account = StripeManagedAccount.new(printer_id: current_printer.id)
end
end
model
class StripeManagedAccount < ActiveRecord::Base
belongs_to :printer
end
views/new
<h1>Create New Stripe Managed Account</h1>
<%= render 'form' %>
view/form
<h5>inside the form</h5>
<%= form_for #stripe_managed_account do |f| %>
<% end %>
routes
resources :printers, only: [:show, :edit, :update] do
resources :stripe_managed_accounts
end
error
`undefined method 'stripe_managed_accounts_path' for #<#<Class:0x007fc627d342b8>:0x007fc62b36e108>`
routes
printer_stripe_managed_accounts GET /printers/:printer_id/stripe_managed_accounts(.:format) stripe_managed_accounts#index
POST /printers/:printer_id/stripe_managed_accounts(.:format) stripe_managed_accounts#create
new_printer_stripe_managed_account GET /printers/:printer_id/stripe_managed_accounts/new(.:format) stripe_managed_accounts#new
edit_printer_stripe_managed_account GET /printers/:printer_id/stripe_managed_accounts/:id/edit(.:format) stripe_managed_accounts#edit
printer_stripe_managed_account GET /printers/:printer_id/stripe_managed_accounts/:id(.:format) stripe_managed_accounts#show
PATCH /printers/:printer_id/stripe_managed_accounts/:id(.:format) stripe_managed_accounts#update
PUT /printers/:printer_id/stripe_managed_accounts/:id(.:format) stripe_managed_accounts#update
DELETE /printers/:printer_id/stripe_managed_accounts/:id(.:format) stripe_managed_accounts#destroy
and it is highliting this line <%= form_for #stripe_managed_account do |f| %>
I have grepped the entire code base for stripe_managed_accounts_path and it is no where. I am at odds end...
UPDATE:::
If I add that route it disappears??? Why is it looking for that route. Is it becasue of how I named my fodlers, etc??

You're nesting stripe_managed_accounts inside printers on your routes file. If you take a look at the output of rake routes, you can see that there isn't a path for stripe_managed_accounts_path.
You can either use the shallow option on the stripe_managed_accounts resource or adjust your form to include the printer which the managed account will belong to.
#controller
class StripeManagedAccountsController < ApplicationController
before_action :authenticate_printer!
def new
#stripe_managed_account = current_printer.build_stripe_managed_account
end
def create
current_printer.stripe_managed_accounts.create stripe_managed_account_params
# handle response
end
def stripe_managed_account_params
params.require(:stripe_managed_account).permit([list of attributes])
end
end
#form
<h5>inside the form</h5>
<%= form_for [current_printer, #stripe_managed_account] do |f| %>
<% end %>
That will generate the proper url, nesting the stripe_managed_account inside the current printer.
For has_one association reference http://guides.rubyonrails.org/association_basics.html#has-one-association-reference

Related

CRUD model in rails without using resource and scaffold

I'm new to rails, and I've already learnt how to do CRUD using scaffold and using resource, I wanna know how to Do CRUD without using resource, However what I want to do is create custom methods for CRUD in the controller that will be like the traditional CRUD model. Please help me with this.
Actually, for the action index / new / show / create / edit / update / destroy, this is a convention in Ruby On Rails
If I'm right and if you're trying to change their name using resources in routes.rb (Changing by exemple the new action into def my_restaurant), Rails will render
Unknown action The action 'new' could not be found for
RestaurantsController
Netherless, you can create some methods to perform some particular action into the index, and add them in the "private section" you want to hide them to the public. There is no routes attach to this method.
class RestaurantsController < ApplicationController
def index
#restautants = Restaurant.all
#restaurants.sort_by_name
end
private
def sort_by_name
#some action here
end
end
If you want to create your own name method, you can personnalise it but you can't use resources "shortcut" in the routes.rb
by exemple :
#reviews_controller.rb
class ReviewsController < AplicationController
def index
#reviews = Reviews.all
end
def update
#review = Review.find(review_params[:id])
end
def history
#some action
end
private
def review_params
params.require(:review).permit(:liked, :comment, :id)
end
end
Then add a view
#app/views/reviews/history.html.erb
Don't forget the routes :
Rails.application.routes.draw do
resources :reviews, only: [:index, :update] do
collection do
get :history
end
end
end
I hope this will help you and complete the previous answer.
as for your second question :
I still do have one doubt tho..... Will <%= form_for #post do |f| %>
this form be enough for new_post and edit_post, will it automatically
identify them? If that's not enough can you please tell me the what
comes at new_post.html.erb and edit_post.html.erb....Thanks again for
the help.
If the form is the same for your new_post and edit_post, i may suggest you to put into a partial file. (For this example I used simple_form gem)
#app/views/posts/_form.html.erb
<%= simple_form_for(#post) do |f| %>
<%= f.input :name, label: "post name" %>
<%= f.input :photo, as: :file %>
<%= f.submit "Save", class:"btn btn-small btn-success" %>
<% end %>
and then render the partial in your views new file.
#app/views/posts/new.html.erb
<div>
<h1>New Post</h1>
</div>
<%= render "form" %>
Well I hope I could help you with this answer.
Do not hesitate too to read ruby documention. You may find more information that you're looking for too.
My answer may be redundant but it's the better way for me to clearly explain it...
In oder to use your own custom methods you need to create them in your controller, setup the route and if needed create an view.
# PostsController
def create_post
# Do your create stuff here
end
def read_post
# Do your read stuff here
end
def update_post
# Do your update stuff here
end
def delete_post
# Do your delete stuff here
end
# routes
post '/create_post', to: 'posts#create_post'
get '/read_post/:id', to: 'posts#read_post'
put '/update_post/:id', to: 'posts#update_post'
delete 'delete_post/:id', to: 'posts#delete_post'
With the controller and routes setup you will only need a view for the read_post method. The best way to do that is create the file: views/posts/read_post.html.erb
There is 7 CRUD routes to Create, Read, Update and Delete.
Rails.application.routes.draw do
get "restaurants", to: "restaurants#index"
get "restaurants/new", to: "restaurants#new", as: :new_restaurant
post "restaurants", to: "restaurants#create"
# NB: The `show` route needs to be *after* `new` route.
get "restaurants/:id", to: "restaurants#show", as: :restaurant
get "restaurants/:id/edit", to: "restaurants#edit", as: :edit_restaurant
patch "restaurants/:id", to: "restaurants#update"
delete "restaurants/:id", to: "restaurants#destroy"
end
So once the route create, you can create in the controller, the action that you need
class RestaurantsController < ApplicationController
def index
#restaurants = Restaurant.all
end
end
and the view
app/views/restaurants/index.html.erb.
The best practice is to create only the routes that you will need and to work in silos.
1 route, 1 controller action, 1 view.

ActionController::UrlGenerationError in Products#index

I'm trying to link each image from my index page (products_path) to my show page.
In my controller I currently have:
class ProductsController < ApplicationController
before_action :find_product, only: [:show]
def index
#products = Dir.glob("#{Rails.root}/app/assets/images/*.jpg")
end
def show
end
private
def find_product
#product = Product.find(params[:id])
end
end
And in my index view page:
<% Dir[File.join("public/assets", "*.jpg")].each do |file| %>
<%= link_to image_tag file.gsub('public', ''), product_path(#product), class: 'img-responsive col-lg-3' %>
<% end %>
This results in an error which I've been trying to fix for quite a while. I hope anyone has some experience with this error.
No route matches {:action=>"show", :controller=>"products", :id=>nil} missing required keys: [:id]
I thought 'products' was empty but when I check the console, there are a few Product attributes with images in them.
#products = Dir.glob("#{Rails.root}/app/assets/images/*.jpg")
What is this?
Why are you filling an instance variable with the glob of all the images in your assets/images directory? You can call that in your view.
You shouldn't have this in the controller; you shouldn't even have it because it's a bad pattern (not object orientated).
--
No route matches {:action=>"show", :controller=>"products", :id=>nil} missing required keys: [:id]
This error is caused by you're calling a link_to without an appropriate id to send into the request. I appreciate you're sending #product; it's either that this has not been invoked properly, or you're calling it incorrectly.
The problem here is that you're passing #product without actually setting it... before_action :find_product, only: [:show] - the index action won't have #product available.
This problem would be fixed with my recommendation below. Or simply, you have to populate the link_to with either an id value, or an object.
Fix
You should be attaching your images to your Product model.
You can use Paperclip or Carrierwave to do this:
#app/models/product.rb
class Product < ActiveRecord::Base
has_attached_file :image #-> paperclip implementation
end
This will allow you to upload images for the model itself (I can write more about this if required).
You'd then be able to use the OOP pattern:
#app/controllers/products_controller.rb
class ProductsController < ApplicationController
def index
#products = Product.all
end
end
Then in your view:
#app/views/products/index.html.erb
<% #products.each do |product| %>
<%= product.name %>
<%= image_tag product.image.url %>
<% end %>

name error uninitialized constant path in rails

I'm trying to make a form that will post to a database, I'm really struggling at the moment and i'm getting this error.
NameError in AddController#index
uninitialized constant AddController::Newevents
Could you advise what i would need to do?
Heres all the code i have
Form
<%= simple_form_for(#newevent) do |f| %>
<%= f.input :eventname, required: true %>
<%= f.input :eventdate %>
<%= f.input :eventimage %>
<%= f.button :submit %>
<% end %>
controller
class AddController < ApplicationController
def index
#newevent = Newevent.new
end
end
Model
class Newevent < ActiveRecord::Base
def event_params
params.require(:Newevent).permit(:eventname, :eventdate, :eventimage)
end
end
Routes
resources :add
Edit
i now have this error undefined methodnewevents_path'` after changing this
#newevents = Newevent.new
It seems that you miscopied your code here. The error message indicates that your index method actually looks like this
def index
#newevent = Newevents.new
end
Remove the s from the end of Newevent and it should work.
RE: your edit
Your routes declare that you have a resource named add, if you want to show and create your Newevent objects, then you should create a controller for that. Declare resources :newevents in your routes and create a controller to handle it.
You should research RESTful routes, because that's what Rails's resource routing works best with. The form to create a new object should be displayed by the new action and not index.
You should be using create method instead of index if you are using POST http method. index will be called if you are using GET method and it shouldn't be used to post the form data. Refer this link for more information on rails routing.
class AddController < ApplicationController
def create
#newevent = Newevent.new
end
end

simple_form undefined method model_name 3 classes error

So I just Nested some resources that weren't Nested before and since I have been trying to fix all of the path references. The biggest issue I have been having is with the fact that there are 2 nested resources within a larger nested resource like so:
Users->Photos->Comments
On my form, it keeps giving me the following error
undefined method `model_name' for "/users/2/photos/2/comments/new":String
The error page says that the source is around line #1 of the following (my comments/_form partial):
= simple_form_for ([#comment, new_user_photo_comment_path(#user,#photos,#comment)]) do |f|
= f.input :content, label: "Reply to thread"
=f.button :submit, class: "button"
This is my Comments controller:
class CommentsController < ApplicationController
before_action :authenticate_user!
def new
#photo=Photo.find(params[:photo_id])
end
def create
#photo =Photo.find(params[:photo_id])
#comment=Comment.create(params[:comment].permit(:content, :id, :photo_id))
#comment.user_id= current_user.id
#comment.photo_id= #photo.id
#user= User.find_by(params[:id])
if #comment.save
redirect_to user_photo_path(#photo, #user)
else
render 'comments/new'
end
end
end
At first, it is not preferably to nest resources deeper than two times.
You should consider to nest comments within only photos. It`s ok to do like so in routes.rb:
resources :users do
resources :photos
end
resources :photos do
resources :comments
end
And you errors is because
= simple_form_for ([#comment, new_user_photo_comment_path(#user,#photos,#comment)]) do |f|
gives for method simple_form_for as parameters:
1 - model Comment
2 - String /users/2/photos/2/comments/new
to set proper path (form action) form builders need models as all arguments.
Maybe something like
= simple_form_for ([#user,#photos,#comment]) do |f|
should work

undefined method `_path' in form, with routes defined at :resources

I've been stuck on this for a bit and can't figure out the exact reason why I'm getting the following error:
undefined method `entries_path' for <%= form_for(#entry) do |f| %>
entry_controller:
class EntryController < ApplicationController
def index
end
def new
#entry = Entry.new
end
def create
#entry = Entry.new(user_params)
if #entry.save
redirect_to #entry
else
render 'new'
end
end
private
def user_params
params.require(:entry).permit(:comment, :flag)
end
end
routes has:
resources :entry
and the new page where the error occurs:
<%= form_for(#entry) do |f| %>
<%= f.label :comment %>
<%= f.text_field :comment %>
<%= f.label :flag %>
<%= f.text_field :flag %>
<% end %>
I can't figure out why I'm getting this error.
form_for needs to reference the path associated with #entry (i.e. entries_path), but your routes.rb file uses the singular form of the resource (:entry) rather than the required plural form (:entries), so the proper path names don't exist.
Rails models use the singular form, but the Rails database, controllers, views use the plural form and this is reflected in the routes file. One way to remember this is that a model is describing a single class that each object belongs to. Everything else, pretty much, is responsible for managing multiple instances, so while they themselves are singular (e.g. Controller), they refer to the objects they manage in the plural form (e.g. EntriesController, controller/entries directory).
See Ruby on Rails plural (controller) and singular (model) convention - explanation for more discussion of this.
Controller and views should always be treated in plural form. For example, if you have an object Book, then the controller declaration should be
class BooksController < ApplicationController
and the views( new, edit, show, index ) should be inside a folder named
/books
Also, the declaration of routes should be in plural form. In this case, the routes should be declared as
resources :books
You could try to generate the controller and view folder by running in your terminal:
rails generate controller name_of_object_in_plural_form( for sample, books)
The script will generate a controller named books_controller.rb and /books folder under /views

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