CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3imagehelperlink-to
dblarons
dblarons

Reputation: 123

Click pictures and update database row on rails

I need to be able to click an image (out of a bunch of images) and update a profile table based on the image clicked.

List of images in my view:

 <% @pages_selection.each do |pages_selection| %>
    <img> 
      <%= link_to image_tag(pages_selection.page_picture, '#') %>
    </img>
 <% end %>

Then I've got a method in my controller, called save_new_scores_to_profile, that averages the data from the picture and updates the profile values.

How do I call my controller method when my link_to (the image) is clicked? Is there something like this available?

if link_to clicked
   perform_controller_or_helper_method
end

Because the user needs to select multiple images, I want them to stay on the page after clicking the images (that's why I have the link directed to '#'. I also have a submit button at the end of the page if that helps.

I'm open to using something other than link_to.

EDIT:

Here's where I'm at now in routes

 resources :preferences do
   member do
     get 'save_new_scores_to_profile'
     get 'checked_average_with_profile'
   end
 end

and the view:

<% @pages_selection.each do |pages_selection| %>
    <img> 
      <%= link_to image_tag(pages_selection.page_picture, :controller =>      
          :checked_average_with_profile, :action => :save_new_scores_to_profile, :image_id 
          => pages_selection.id) %>
    </img>
<% end %>

I have functions checked_average_with_profile and save_new_scores_to_profile in my controller that I know work (after testing with helper functions).

Upvotes: 0

Views: 479

Answers (1)

Zippie
Zippie

Reputation: 6088

link_to image_tag(pages_selection.page_picture, :controller => :my_controller, :action => :save_new_scores_to_profile, :image_id => pages_selection.page_picture.id )

Insted of my_controller put the name of your controller. With the :image_id you have passed a parameter that you can reference in your controller action with the params hash like: params[:image_id].

Do all your work in that controller action (or with additional calls of helper methods), find the picture that has that image_id and make a redirect_to @picture_with_that_id

Upvotes: 1

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