Question

These are part of my routes.

   activity_groups GET    /activity_groups(.:format)                                activity_groups#index
                           POST   /activity_groups(.:format)                                activity_groups#create
        new_activity_group GET    /activity_groups/new(.:format)                            activity_groups#new
       edit_activity_group GET    /activity_groups/:id/edit(.:format)                       activity_groups#edit
            activity_group GET    /activity_groups/:id(.:format)                            activity_groups#show
                           PUT    /activity_groups/:id(.:format)                            activity_groups#update
                           DELETE /activity_groups/:id(.:format)                            activity_groups#destroy
                      root        /                                                         main#index

Minimal view:

activity_groups/show

%h2 Activity Ggroup

%h3= @activity_group.title

= link_to "Edit", edit_activity_group_path(@activity_group)
|
= link_to "Delete", activity_group_path(@activity_group), {confirm: (I18n.t "confirmations.activity_group.delete"), method: :delete}
|
= link_to "Back", activity_groups_path

The index is a little bit more complex:

activity_groups/index

.row
    .span8
        %h1.padding_bottom1 Activity Groups

        - if !@activity_groups.empty?

            %ul.span6
                %li.span1 F
                %li.span2 Name
                %li.span2 Actions

            = render @activity_groups
            = render @activities
        - else
            %h2.extra_padding You have no Activity Groups yet. Add one and start managing your time. 

    .span6.padding_top1
        =link_to "Create Activity Group", new_activity_group_path, {class: 'btn'}
        =link_to "Create Activity", new_activity_path, {class: 'btn'}

activity_groups/_activity_group.html.haml

%ul.span6
    %li.span1
        %i.icon-folder-close.folder
    %li.span2
        = activity_group.title
    %li.span2
        PROBLEM

    - if !activity_group.activity_groups.empty?
        - activity_group.activity_groups.each do |activity_group|
            = render partial: 'activity_group', locals: {activity_group: activity_group}

    - if !activity_group.activities.empty?
        - activity_group.activities.each do |activity|
            = render partial: 'activities/activity', locals: {activity: activity}

PROBLEM If i place a link_to "Show", activity_groups_path(activity_group) here my routes go crazy. My activity_groups_path is gone. I can’t access it anymore. It tries to redirect me to the show view and not to the index view. I really don’t understand why this happens. Any ideas?

[EDIT1]

I started with a clean database. If I try to place a link for the show page now I get a NameError undefined local variable or methodactivity_group_path’`

[EDIT2] corrected misspell above

Answer 1

Are you passing object to your link path?

activity_group_path(@activity_group)