How to prepopulate form with data passed from @object?

Question

On my website a user can upload \"inspirations\" aka images or text that a user finds inspirational.

I want to create a feature, like Pinterest, where a user ca

Answer 1

Why are you duplicating functionality?

If someone "pins" an inspiration, is it not the case that the inspiration will be the same one the other user uploaded? Which means, you should have functionality to create a pin, not an inspiration.

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I'll delete this if out of context, but here's what I'd do:

#config/routes.rb
resources :inspirations do
   match :pin, via: [:post, :delete], on: :member #-> url.com/inspirations/:id/pin
end

#app/controllers/inspirations_controller.rb
class InspirationsController < ApplicationController
   def pin
      @inspiration = Inspiration.find params[:id]
      if request.post?
         current_user.pins << @inspiration
      elsif request.delete?
         current_user.pins.delete @inspiration
      end
   end
end

This will allow you to use:

#app/views/inspirations/index.html.erb
<% @inspirations.each do |inspiration| %>
   <%= link_to "Pin", inspiration_pin_path(inspiration) %>
<% end %>

--

If you wanted to add extra attributes for the "pin" (such as a custom caption etc), you'll be able to do it with a simple form...

#app/views/inspirations/index.html.erb
<% @inspirations.each do |inspiration| %>
   <%= form_for inspiration, url: inspiration_pin_path(inspiration) do |f| %>
      <%= f.text_field :caption %>
      <%= f.submit %>
   <% end %>
<% end %>