I am beginner to ror, I am trying dynamic page in my application, while I click the about link in my application I got a routing error(as said in title). Here is my routes.rb file
Rails.application.routes.draw do
devise_for :users
resources :userdetails do
collection {post :import}
end
# For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
root to: "userdetails#index"
get 'about', to:'userdetails#about'
devise_scope :users do
get 'sign_in', to: 'devise/sessions#new'
get 'sign_out', to: 'devise/sessions#destroy'
end
end
here is index.html.erb file:
<div class="topnav">
Home
News
Contact
<a href="about_path" data-method = "get" >About Us</a>
...
</div>
Please help me identify my mistake.....
your routes says: -
get '/about', to: 'userdetails#about', as: :user_about
so according to this
About Us
Instead of this you can use rails view helper which fill convert this to html anchor tag: -
<%= link_to 'About Us', user_about_path%>
As you are beginner so you should go though this rails Routing for better clarification.
Note: - by default link is GET type http verb so you don't need to mention data-method = "get"
and you can see all your routes at console by running command rake routes
When you run rails routes or rake routes it will generate like this
about GET /about(.:format) userdetails#about
That means your path is about_path then you can call out like this
About Us
or like this HTML
About Us
or like this .erb
<%= link_to 'About Us', about_path %>
While your routes like exist
get 'about', to:'userdetails#about'
Here you have defined method get that's why this is unnecessary to HTML call out data-method = "get".
Hope it will work
Related
I have an app with subdomains for various people that all share the same domain (i.e. www.liz.domain.com, www.anthony.domain.com, etc.). I need to create links from one subdomain to the main domain and back, but can't figure out how to make it work. My routes stand like this:
Rails.application.routes.draw do
constraints subdomain: 'liz' do
scope module: 'liz', as: 'liz' do
get 'home/index'
root 'home#index'
resources :inquiries
get 'services/hire'
get 'services/dev'
get 'services/design'
get 'services/branding'
get 'services/portfolio'
end
end
constraints subdomain: 'anthony' do
scope module: 'anthony', as: 'anthony' do
get 'home/index'
root 'home#index'
end
end
get 'home/index'
root 'home#index'
end
And when I rake routes it turns out like this:
Prefix Verb URI Pattern Controller#Action
liz_home_index GET /home/index(.:format) liz/home#index {:subdomain=>"liz"}
liz_root GET / liz/home#index {:subdomain=>"liz"}
liz_inquiries GET /inquiries(.:format) liz/inquiries#index {:subdomain=>"liz"}
POST /inquiries(.:format) liz/inquiries#create {:subdomain=>"liz"}
new_liz_inquiry GET /inquiries/new(.:format) liz/inquiries#new {:subdomain=>"liz"}
edit_liz_inquiry GET /inquiries/:id/edit(.:format) liz/inquiries#edit {:subdomain=>"liz"}
liz_inquiry GET /inquiries/:id(.:format) liz/inquiries#show {:subdomain=>"liz"}
PATCH /inquiries/:id(.:format) liz/inquiries#update {:subdomain=>"liz"}
PUT /inquiries/:id(.:format) liz/inquiries#update {:subdomain=>"liz"}
DELETE /inquiries/:id(.:format) liz/inquiries#destroy {:subdomain=>"liz"}
liz_services_hire GET /services/hire(.:format) liz/services#hire {:subdomain=>"liz"}
liz_services_dev GET /services/dev(.:format) liz/services#dev {:subdomain=>"liz"}
liz_services_design GET /services/design(.:format) liz/services#design {:subdomain=>"liz"}
liz_services_branding GET /services/branding(.:format) liz/services#branding {:subdomain=>"liz"}
liz_services_portfolio GET /services/portfolio(.:format) liz/services#portfolio {:subdomain=>"liz"}
anthony_home_index GET /home/index(.:format) anthony/home#index {:subdomain=>"anthony"}
anthony_root GET / anthony/home#index {:subdomain=>"anthony"}
home_index GET /home/index(.:format) home#index
root GET / home#index
I've tried using a <%= link_to "Liz's Page", liz_root_path(subdomain: 'liz') %> or <%= link_to "Liz's Page", liz_root_path %> from the main domain (without a subdomain), but neither links to the subdomain.
Similarly, I've tried <%= link_to "Main Page", root_path %> from a page inside a subdomain and it just links to the subdomain's home, not the site root.
Can anyone straighten me out on how to link back and forth between subdomains/main domains?
I eventually changed these from path to url to solve the problem.
This way <%= link_to "Liz's Page", liz_root_path(subdomain: 'liz') %> became <%= link_to "Liz's Page", liz_root_url(subdomain: 'liz') %> and worked fine.
How can I also show a blog post without /posts/ in the URL?
http://www.anthonygalli.com/posts/i-walk-the-line
http://www.anthonygalli.com/posts/50-shades-of-galli
http://www.anthonygalli.com/posts/tips-for-regaining-momentum
Shortened Version (Goal of Question):
http://www.anthonygalli.com/i-walk-the-line
http://www.anthonygalli.com/50-shades-of-galli
http://www.anthonygalli.com/tips-for-regaining-momentum
I have post as a MVC.
routes.rb
resources :posts
get 'about' => 'posts#about'
get 'feed' => 'posts#feed'
get 'subscribe' => 'posts#subscribe'
Change your routes.rb to:
resources :posts, path: '/' do
collection do
get 'about'
get 'feed'
get 'subscribe'
end
end
For documentation on Rails routing check: http://guides.rubyonrails.org/routing.html
Your routes should be updated to look something like this:
resources :posts
get 'about' => 'posts#about'
get 'feed' => 'posts#feed'
get 'subscribe' => 'posts#subscribe'
get ':id' => 'posts#show', :as => :post_by_slug
That as option will be important for linking to your new route if you want to link to the /post/-less paths:
<%= link_to post.title, post_by_slug_path(post) %>
P. S. I believe that the new route will need to be listed last in your routes so that the routes before it can have precedence. (Otherwise, trying to visit /about would try to load a post with a slug named about instead of the posts#about action. You should try this and see if that's true.)
Resource generates the standard CRUD urls, so you have to specify the posts route specifically. Something like this
get '/desired-url' => 'posts#index'
When I try to load the show view, displaying a "wiki" that was created, I get the error message Couldn't find Wiki with 'id'=
It specifically points to the second line in the Controller:
def show
#wiki = Wiki.find(params[:id]) ## shows the error in this line
end
def index
#wikis = Wiki.all
end
The following is my view:
<h1><%= #wiki.title %></h1>
<h3><%= #wiki.body %></h3>
And the following are my routes:
Rails.application.routes.draw do
get 'wikis/index'
get 'wikis/show'
get 'wikis/new'
get 'wikis/edit'
get 'wikis/create'
devise_for :users
get 'welcome/index'
root 'welcome#index'
end
Why am I getting this error message, and how can I get the view to load?
Thank you.
There is no :id param unless you pass it in explicity according to how your routes are set up. That is, you'd have to go to /wikis?id=<some id>, which is probably not what you want. Consider a more standard resourceful route setup:
Rails.application.routes.draw do
resources :wikis
devise_for :users
get 'welcome/index'
root 'welcome#index'
end
which lets you go to /wikis/<id> (that is, wiki_path(#wiki) in the controller) for the show route, and defines the index, create, etc routes for you correctly. http://guides.rubyonrails.org/routing.html
You have this error because you don't pass wiki's id into your show link, so the simplest solution is providing an id:
<%= link_to wiki.title, wikis_show_path(id: wiki) %>
But to be honest, your code looks very ugly with these custom routes to wikis controller which can be replaced by putting simply:
resources :wikis
in your routes.rb. This way, link to single wiki show page is also simpler:
<%= link_to wiki.title, wiki %>
You may want to read Rails routing guide.
Your params[:id] is most likely nil unless you pass it like /wikis/show?id=123, because route get 'wikis/show' does not have any params.
Most common approach is to have resources :wikis and routes like /wikis/123
add this line in your routes
resources :wikis
and remove this code:
get 'wikis/index'
get 'wikis/show'
get 'wikis/new'
get 'wikis/edit'
get 'wikis/create'
Now you can write in url: websitename.com/wikis to index, websitename.com/wikis/id, websitename.com/wikis/id/edit to edit... and get your id param...
Read more about resources in this link: Resources Link
I've got an app where the links work fine when I'm on the homepage, but when I'm on a page belonging to a resource such as "users", some links get a little weird.
When I'm on the homepage and I click the link for the "About" page, I'm taken there directly. But if I'm on the page for users/index and I hover over the link for the "About" page, it shows the destination as being "users/about."
Here's what my routes file looks like.
RobotimusApp::Application.routes.draw do
resources :users
root to: "pages#home"
match '/about', to:'pages#about'
match '/guides', to:'pages#guides'
end
Here's what my nav bar looks like
%ul.nav
%li
=link_to 'Home', root_url
%li
=link_to 'About', 'about'
- if user_signed_in?
%li
= link_to('My Sites', user_path(current_user))
Welp, the issue lies in this line:
=link_to 'About', 'about'
Instead of passing in a routed path like about_path, we pass in the string 'about'. When link_to receives a string as its URL parameter, it doesn't run it through the router or anything; it assumes that that's the URL you want to go to. (After all, about_path and the like return strings.)
So, you end up with something like this in the HTML:
About
Here, about is a relative URL, so from the path /users it will go to /users/about.
You could just use a preceding slash to make it an absolute path:
= link_to 'About', '/about'
But it's not particularly Rails-y to hard-code our URLs when we can use routes instead. You're probably going for something like this:
= link_to 'About', about_pages_path
(Is about_pages the route name? It probably should be. You can always name it with an as parameter.)
If you run rake routes in a terminal you'll get a list of all the routes available.
think the link for your about page should be
= link_to 'About', about_pages_path
i am working in Ruby on rails.. i am new to this..
i have used a line
<%= link_to "about",about_path %>
which throws me a error as,
undefined local variable or method `about_path' for #<ActionView::Base:0xb5f5baa8>
i am having the page about.html under app/views/pages/
please give some suggestions of why i am getting like this .
I just had the same problem using the Hartl's tutorial. Here is what I did.
When asking rake routes, I have :
tomsihap-MBP:sample_app tomsihap$ rake routes
Prefix Verb URI Pattern Controller#Action
root GET / static_pages#home
static_pages_help GET /static_pages/help(.:format) static_pages#help
static_pages_about GET /static_pages/about(.:format) static_pages#about
static_pages_contact GET /static_pages/contact(.:format) static_pages#contact
Then the correct path is :
<%= link_to "About", static_pages_about_path %>
And not <%= link_to "About", about_path %> as suggested by Hartl's guide.
EDIT :
Ok now I understand. That is because routes were defined like that :
Rails.application.routes.draw do
root 'static_pages#home'
get 'static_pages/help'
get 'static_pages/about'
get 'static_pages/contact'
Instead of, later explained into the tutorial :
Rails.application.routes.draw do
root 'static_pages#home'
get 'help' => 'static_pages#help'
get 'about' => 'static_pages#about'
get 'contact' => 'static_pages#contact'
Using this way, the correct path now is :
<%= link_to "About", about_path %>
Your code is looking for what is called a named route. You need to define these in config/routes.rb. In addition you will need some controller and action to handle them. See this post describing a very simple way to handle static pages by way of illustration.
To get the about_path named route, then you would add this to routes.rb
map.about "/pages/about", :controller => "pages", :action => "show", :id => "about"
Then add your about page contents to a file called app/views/pages/about.html.erb
Finally:
$ rake routes
tells you all of the named routes defined for your application and what they do
I guess your about page is "static". Check this..
routes.rb
# rails 2.3.x
map.about "/pages", :controller => 'pages', :action => 'about'
Controllers/pages_controller.rb
class PagesController < ApplicationController
def about # not needed, only for "tidiness"
end
end
... and your erb file have to be here: Views\pages\about.html.erb
Is in your routes.rb something like map.resources :about ?
If you don't know why it should be there or what is that, read about RESTful Routing on guides.