Hi so I'm really new to rails and I am trying to figure out how to use this gem https://github.com/jonhue/acts_as_favoritor.
At the moment I am trying to get a student to favourite an internship.
My favourites controller looks like this
class FavouritesController < ApplicationController
def new
#internship = Internship.find(params[:id])
current_student.favourite(internship)
redirect_to_show
end
def show
current_students.all_favourites
end
end
My routes look like this
Rails.application.routes.draw do
resources :favourites
devise_for :students
resources :internships
devise_for :companies
# For details on the DSL ava
And my button to add an internship shown in the index is this
<td><%= link_to 'favourite', new_favourite_path %></td>
Using the gem I have put in the models acts_as_favoritor in the student model and acts_as_favoritable in the internship model. I have been banging my head against the wall for ages trying to understand how to write methods from so if someone could please help me out, Thank you heaps!
I think if I were you, I would make my routes something like:
resources :internships do
member do
post :favorite
post :unfavorite
end
end
Which will give you among other things:
favorite_internship POST /internships/:id/favorite(.:format) internships#favorite
unfavorite_internship POST /internships/:id/unfavorite(.:format) internships#unfavorite
internships GET /internships(.:format) internships#index
POST /internships(.:format) internships#create
new_internship GET /internships/new(.:format) internships#new
edit_internship GET /internships/:id/edit(.:format) internships#edit
internship GET /internships/:id(.:format) internships#show
PATCH /internships/:id(.:format) internships#update
PUT /internships/:id(.:format) internships#update
DELETE /internships/:id(.:format) internships#destroy
Then in your view, you would do something along the lines of:
<td>
<% if current_student.favorited?(internship) %>
<%= link_to 'unfavourite', unfavorite_internship_path(internship), method: :post %>
<% else %>
<%= link_to 'favourite', favorite_internship_path(internship), method: :post %>
<% end %>
</td>
This, naturally, assumes you have access to current_student and internship in your view.
Then, in your InternshipsController, you would do something like:
class InternshipsController < ApplicationController
def favorite
#internship = Internship.find(params[:id])
current_student.favorite(#internship)
# redirect somewhere
end
def unfavorite
#internship = Internship.find(params[:id])
current_students.unfavorite(#internship)
# redirect somewhere
end
end
Now, favorite and unfavorite are not very restful. So, I guess you could do:
resources :internships do
scope module: :internships do
resources :favorites, only: [:create] do
collection do
delete '/', action: :destroy
end
end
end
end
Which would give you:
internship_favorites DELETE /internships/:internship_id/favorites(.:format) internships/favorites#destroy
POST /internships/:internship_id/favorites(.:format) internships/favorites#create
internships GET /internships(.:format) internships#index
POST /internships(.:format) internships#create
new_internship GET /internships/new(.:format) internships#new
edit_internship GET /internships/:id/edit(.:format) internships#edit
internship GET /internships/:id(.:format) internships#show
PATCH /internships/:id(.:format) internships#update
PUT /internships/:id(.:format) internships#update
DELETE /internships/:id(.:format) internships#destroy
Then you would need a Internships::FavoritesController something like:
# in app/controllers/internships/favorites_controller.rb
class Internships::FavoritesController < ApplicationController
def create
#internship = Internship.find(params[:internship_id])
current_student.favorite(#internship)
# redirect somewhere
end
def destroy
#internship = Internship.find(params[:internship_id])
current_students.unfavorite(#internship)
# redirect somewhere
end
end
Then in your view, it would be more like:
<td>
<% if current_student.favorited?(internship) %>
<%= link_to 'unfavourite', internship_favorites_path(internship), method: :delete %>
<% else %>
<%= link_to 'favourite', internship_favorites_path(internship), method: :post %>
<% end %>
</td>
Related
Before getting into details I have read through these posts to try to find the solution without success : one, two, three
That being said: I am [new and] building an ecomm site for selling secondhand clothing, shoes and decor items.
My structure has only one Product model and associated controller and table. Each 'product' has one of three different main categories, which is what I am using to differentiate and create 3 different URLs.
My routes look like this:
Rails.application.routes.draw do
root to: 'pages#home'
get 'clothing', to: 'products#clothing'
get 'clothing/:id', to: 'products#show'
get 'shoes', to: 'products#shoes'
get 'shoes/:id', to: 'products#show'
get 'home', to: 'products#home'
get 'home/:id', to: 'products#show'
get 'products/new', to: 'products#new'
post 'products', to: 'products#create'
end
My products_controller looks like this:
class ProductsController < ApplicationController
before_action :set_all_products
before_action :set_one_product, only: [:show]
def shoes
#all_shoe_products = #all_products.where(main_category_id: MainCategory.find_by_name("shoes").id)
end
def clothing
#all_clothing_products = #all_products.where(main_category: MainCategory.find_by_name("clothes").id)
end
def home
#all_home_products = #all_products.where(main_category: MainCategory.find_by_name("housewares").id)
end
def show
end
def new
#new_product = Product.new
end
private
def set_one_product
#product = Product.find(params[:id])
end
def set_all_products
#all_products = Product.all
end
end
And when writing <%= link_to clothing_path(product) %> ('product' being the placeholder in an .each loop), I get a path: root/clothing.[:id] and not root/clothing/[:id]
I know I am making a convention error, and trying to have 3 different URLs within the same controller may be where I am gong wrong.
Note: manually entering root/clothing/[:id] in the address bar does return a product correctly.
When you do this:
get 'clothing', to: 'products#clothing'
get 'clothing/:id', to: 'products#show'
in your routes.rb, it creates these routes (which you can see by doing rake routes in your console):
clothing GET /clothing(.:format) products#clothing
GET /clothing/:id(.:format) products#show
As you can see, clothing_path routes to /clothing, not /clothing/:id. So, when you do:
<%= link_to clothing_path(product) %>
rails appends the id as .id (which is what you're experiencing).
#jvillian explains the cause of the issue well here, though I'd like to propose a slight refactor as a solution.
This might be a little more work, though you'd likely be better off with seperate controllers for shoes, clothing and home, and following a RESTful design. That would allow you to use resources in your routes file.
For example, your shoes_controller.rb would be like the following:
class ShoesController < ApplicationController
before_action :set_all_products
before_action :set_one_product, only: [:show]
def index
#all_shoe_products = #all_products.where(main_category_id: MainCategory.find_by_name("shoes").id)
end
def show
end
private
def set_one_product
#product = Product.find(params[:id])
end
def set_all_products
#all_products = Product.all
end
end
And then the routes to define them would be:
resources :shoes, only: [:index, :show]
You follow this pattern for the other resources and you'll have nicely segregated code be following good Rails conventions.
This will generate the routes as you're after:
shoes GET /shoes(.:format) shoes#index
shoe GET /shoe/:id(.:format) shoes#show
That will resolve your issue and give you a nicely designed app - there's also opportunity to extrapolate some of the code shared between the new controllers, though that sounds like a follow up task :)
Hope this helps - let me know if you've any questions or feedback.
I found a solution, though seems a bit of a logic mystery to me why it's working.
In routes.....
get 'clothing', to: 'products#clothing'
get 'clothing/:id', to: 'products#show', as: 'clothing/item'
In the index page....
<%= link_to clothing_item_path(product) do %>
This yields the right URL structure: root/clothing/[:id]
While testing this I was expecting: root/clothing/item/[:id]
...though I prefer the result over my expectation
I think what you want is parameterized routes, like this:
get ':product_line', to: 'products#index'
get ':product_line/:id', to: 'products#show'
This would allow you to create any number of custom product lines without ever having to define new methods in your controller. Assuming there is a product_line attribute on your Product model, the controller would look like this:
class ProductsController < ApplicationController
def index
#product_line = params[:product_line]
#products = Product.where(product_line: #product_line)
end
def show
#product_line = params[:product_line]
#product = Product.find(params[:id])
end
end
And your views/products/index.html.erb would look like this:
<p id="notice"><%= notice %></p>
<h1><%= #product_line %></h1>
<table>
<thead>
<tr>
<th>Description</th>
<th>Price</th>
<th></th>
</tr>
</thead>
<tbody>
<% #products.each do |product| %>
<tr>
<td><%= product.description %></td>
<td><%= product.price %></td>
<td><%= link_to 'Show', "#{#product_line}/#{product.id}" %></td>
</tr>
<% end %>
</tbody>
</table>
Note that the link_to can no longer use a Rails helper method to generate the url. You'd have to do that yourself.
The beauty of this approach is that users could type in ANY product line in the URL. If you had that product line (like say 'sporting_goods'), go ahead and display it. If not, render a page thanking them for their interest and log the fact that someone requested that product line so you can guage interest as you expand your offerings.
Plus, it's RESTful! Yay!
The Rails way of solving this is by creating a nested resource:
resources :categories do
resources :products, shallow: true
end
This nests the collection routes so that you get GET /categories/:category_id/products.
While this might not be as short as your vanity routes it is much more versatile as it will let you show the products for any potential category without bloating your codebase.
You would setup the controller as so:
class ProductsController < ApplicationController
before_action :set_category, only: [:new, :index, :create]
# GET /categories/:category_id/products
def index
#products = #category.products
end
# GET /categories/:category_id/products/new
def new
#product = #category.products.new
end
# POST /categories/:category_id/products
def new
#product = #category.products.new(product_params)
# ...
end
# ...
private
def set_category
#category = MainCategory.includes(:products)
.find_by!('id = :x OR name = :x', x: params[:id])
end
end
You can link to products of any category by using the category_products_path named path helper:
link_to "#{#category.name} products", category_products_path(category: #category)
You can also use the polymorphic path helpers:
link_to "#{#category.name} products", [#category, :products]
form_for [#category, #product]
redirect_to [#category, :products]
If you want to route the unnested GET /products and nested GET /categories/:category_id/products to different controllers a neat trick is to use the module option:
resources :products
resources :categories do
resources :products, only: [:new, :index, :create], module: :categories
end
This will route the nested routes to Categories::ProductsController.
I am developing a project in Ruby on rails 5.2, and in this route it tells me that I have an error and that the specified route is not found. but when checking, the route is there or at least I think so.
Here's my routes.rb:
resources :checkin do
post :get_barcode, on: :collection
end
checkin_controller.rb:
class CheckinController < ApplicationController
def index
#checkin = CheckIn.all
end
def show
end
def new
#checkin = CheckIn.new
#checkin.upc = params[:upc]
end
def edit
end
def update
end
def destroy
end
def get_barcode
#checkin = Merchant.find_or_initialize_by(upc: params[:upc])
unless #checkin.new_record?
redirect_to #checkin
else
redirect_to new_product_path(upc: params[:upc])
end
end
end
And my link in my view:
<%= link_to "Check-In", checkin_path, :class => "nav-link" %>
here's a image of my error page:
If you run rake routes in your console, you'll see that your routes are:
get_barcode_checkin_index POST /checkin/get_barcode(.:format) checkin#get_barcode
checkin_index GET /checkin(.:format) checkin#index
POST /checkin(.:format) checkin#create
new_checkin GET /checkin/new(.:format) checkin#new
edit_checkin GET /checkin/:id/edit(.:format) checkin#edit
checkin GET /checkin/:id(.:format) checkin#show
PATCH /checkin/:id(.:format) checkin#update
PUT /checkin/:id(.:format) checkin#update
DELETE /checkin/:id(.:format) checkin#destroy
As you can see, the checkin_path expects an id, which you are not providing here:
<%= link_to "Check-In", checkin_path, :class => "nav-link" %>
Your error probably says something about missing id, but you don't provide the error in your question, so we can't see exactly what it says.
BTW, by convention, CheckinController should probably be CheckinsController. And your routes should probably be:
resources :checkins do
post :get_barcode, on: :collection
end
As you said in one of your comments, you're expecting the URL for the index page?
Then instead of
<%= link_to "Check-In", checkin_path, :class => "nav-link" %>`
you need to use
<%= link_to "Check-In", checkin_index_path, :class => "nav-link" %>
Currently, I'm building a blog in Rails and I am being curious is there a right way to display resources in the following manner?
In this case you may be able to list all the posts, and if needed, separate category posts.
You'd normally say - use scopes, however I'm not sure scopes are gonna produce the following adressess: /blog/features, /blog/releases.
So, how can I do this?
#config/routes.rb
resources :blogs, path: "blog" do
get ":category", to: :index, on: :collection #-> url.com/blog/:category
end
#app/controllers/blogs_controller.rb
class BlogsController < ApplicationController
def index
#posts = params[:category] ? Post.joins(:category).where(category: {name: params[:category]}) : Post.all
end
end
#app/views/posts/index.html.erb
<% #posts.each do |post| %>
...
<% end %>
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
I've an issue with the paths in the views and I don't know how to solve it.
I've "categories" that has_many "posts" and "posts" that belongs_to "categories".
1.- I want to show on home page the truncate last post of an specific category (the ID number "1"). Then I want that post to link to the show post path but I get this error:
"Unknow Action
The action 'index' could not be found for PostsController"
I think I've my paths wrong because I don't need the index view because I'm only going to show that specific post. So, I think that category_posts_path(#last_post) is not the right path (I don't know where to look for more info about making the route path in the views...). Actually, the browser is showing me that is looking for the "2" category when it is a post of the "1" category...? What am I doing wrong?
This is the browser route:
http://localhost:3000/en/categories/2/posts
This is my views/categories/home.html.erb file:
<div class="post_details">
<h2><%= #last_post.title %></h2>
<%= image_tag #last_post.image(:header), class: "post_image" %>
<p><%= truncate #last_post.body, length: 100 %></p>
<p class="button"><%= link_to "READ MORE", category_posts_path(#last_post) %></p>
</div>
2.- I have another path problem in the views/categories/show.html.erb file. I have a loop to show all the post of one specific category, but when I link in some post (to show it) there is the "index" error again:
"Unknow action
The action 'index' could not be found for PostsController"
This is the browser route:
http://localhost:3000/en/categories/1/posts
This is the views/categories/show.html.erb file:
<div class="post_details">
<h2><%= link_to post.title, category_posts_path(post) %></h2>
<%= image_tag post.image(:header), class: "post_image" %>
<p><%= post.body %></p>
</div>
This is the categories_controller.rb file:
class CategoriesController < ApplicationController
before_action :get_categories
def index
end
def show
#category = Category.find(params[:id])
end
def home
if params[:set_locale]
redirect_to root_url(locale: params[:set_locale])
else
#category = Category.find_by_id(1)
#last_post = #category.posts.order("created_at desc").first
end
end
def get_categories
#categories = Category.all.order("rank asc, name asc")
end
end
This is my posts_controller.rb file:
class PostsController < ApplicationController
def show
#category = Category.find(params[:category_id])
#post = #category.posts.find(params[:id])
end
end
This is my route.rb file:
scope '(:locale)' do
resources :categories do
resources :posts
end
resources :contacts
root 'categories#home'
get "/contact" => "contacts#new"
# static pages
get "/investment" => "contents#investment"
get "/partner-with-us" => "contents#partner", as: "partner"
get "/our-companies" => "contents#companies", as: "companies"
get "/site-map" => "contents#sitemap", as: "sitemap"
get "/terms-and-conditions" => "contents#terms", as: "terms"
get "/privacy" => "contents#privacy"
end
When you are nesting routes you should always consider what is the parent and whats a child in given route. Since your paths don't know anything about your associations you have to explicitly define every object in the nesting.
I.e. since you nested posts in categories linking to last post in given category would look like this:
category_post_path(#category, #last_post)
(I think you have also a typo there - category_posts_paths - which links to posts index index - hence the error. Use category_post_path. instead, and give it both parent category and the post.
You can run rake routes to see exact information on paths (or go to http://localhost:3000/rails/info/routes )