help...how do i get the "projects_path" from controller?

rubyonrails-talk
1

hi, i have a generic _index partial, but i am struggling with constrcuting the

(link_to “show”, …(rec.id))

how can i get that filled in? i have tried via url_for (controller & action), but it always says: arguments passed to url_for can’t be handled

please help

thx

2

The projects path isn't coming from the controller, it's coming from the routes file. Do you have any references in your routes.rb file that mention projects?

Walter

3

yes i do: scope :pm do get ‘/’, :to => ‘projects#dashboard’, :as=>‘pm_dashboard’ resources :project_resource_groups #, :path=>‘tasks’ resources :project_programs resources :projects

end

but again, the _index view partial is used in a lot index actions, so i dont know how to “pick” the right ‘path’ while creating the html table…

thx

4

You could use

link_to 'Index', url_for(controller: controller_name, action: :index)

instead. That would be agnostic of whichever controller was rendering that _index.html.erb partial.

Walter

5

You can pass the object to the link_to if you want to use the show url:

link_to ‘Show’, record

Rails will infere the show action with the proper controller and id from the object’s class

6

Oh, duh. I didn't read what you were asking. Please ignore my answer. Ariel has the right answer here.

Walter

7

thanks to all, BUT:

<%= link_to “X”, project_path(rec.id) %>

→ harcoding works

<%= link_to “X”, url_for([rec, rec.id ]) %>

→ arguments passed to url_for can’t be handled. Please require routes or provide your own implementation

<%= link_to “X2”, :url => url_for(action: ‘show’, controller: “pm/projects”, :id=>rec.id ) %>

→ arguments passed to url_for can’t be handled. Please require routes or provide your own implementation

<%= link_to “X3”, url_for(action: ‘show’, controller: “pm/projects”, :id=>rec.id ) %>

→ arguments passed to url_for can’t be handled. Please require routes or provide your own implementation

i am loosing it…

8

Started GET “/pm/projects” for 10.0.1.10 at 2019-05-21 15:12:09 -0400 Cannot render console from 10.0.1.10! Allowed networks: 127.0.0.1, ::1, 127.0.0.0/127.255.255.255 Processing by ProjectsController#index as HTML User Load (0.6ms) SELECT “users”.* FROM “users” WHERE “users”.“id” = $1 ORDER BY “users”.“id” ASC LIMIT 1 [[“id”, 1]] “ProjectsController::index =================================================”

browser:

<%= link_to "show1", rec %>

--> arguments passed to url_for can't be handled. Please require routes or provide your own implementation
9

where are you calling that link_to helper? on a view? on a helper? sounds like you are not on the right context to properly use url_for helper (that’s why it complains that you have to require routes or provide your implementation for it)