Question

I’m getting this error undefined local variable or methodtoggle_follow_path’` in the view folder .I probably got something wrong with the method or the use off form_tag + toggle_follow_path any help would be welcome thank you . by the way the goal of the toggle follow is to follow or un follow some one.

in the route file

 match '/:username/toggle_follow',       to: 'home#toggle_follow'

home controller

def toggle_follow
     @user =  User.find_by_username(params[:username])
     if current_user.is_friend? @user
       flash[:notice] = "You are no longer following @#{@user.username}"
       current_user.remove_friend(@user)
     else
       flash[:notice] = "You are now following @#{@user.username}"
       current_user.add_friend(@user)
     end
     redirect_to user_flits_path(@user)

  end

view

<h1><%= image_tag @user.gravatar_url, :align => "top" %> <%= @user.username %></h1>

<%= form_tag  toggle_follow_path, :method => :post do  %>
  <% if current_user.is_friend? @user %>
     <%=h submit_tag "Following"  , :class => "button" %>
  <% else %>
     <%=h submit_tag "Follow"  , :class => "button" %>
  <% end %>
<% end %>
<%=h render :partial => "flits_list", :locals => {:flits => @flits }%>

Answer 1

Use :as option for match to specify the desired helper’s name:

match '/:username/toggle_follow', to: 'home#toggle_follow', as: 'toggle_follow'

This way both toggle_follow_path and toggle_follow_url will be created.