Question

So I was implementing a feature that allows users to set default profile photos and default photo album cover photos.

Completed these features now:

I have the following tables in my database:
User(s) (has one profile, has many PhotoAlbums)
Profile(s) (belongs to user) contains photo_id
PhotoAlbum(s) (belongs to user, has many photos) contains photo_id
Photo(s) (belongs to PhotoAlbum)

Displaying the users default photo is straight forward.
I’m having trouble displaying the users default album photo now.

This is how I display users default profile photo:

UsersController:

default_profile_photo_id = current_user.profile.photo_id
 @default_photo = Photo.find(default_profile_photo_id) 

Users view show template:

<%= link_to image_tag(@default_photo.image, :width =>"200"), @user.username %> 

Currently for photoalbums default photos I show the first photo inside that photo album:

   <% for photo_album in @photoalbums %>
   <%= link_to photo_album.album_title, photo_album %>    
   <%= link_to image_tag(photo_album.photos.first.image, :width =>"100"), photo_album %>
   <%= link_to "Edit Album", edit_photo_album_path(photo_album) %> 
   <%= photo_album.photos.size %>
   <% end %>

Associated controller action:

  def index
    @photoalbums = PhotoAlbum.find_all_by_user_id(current_user.id)
  end

What I need to do is during the for loop, pull the row from the photos table that has an id that matches the photo_id of the photoalbum that the loop is currently looping so that on my index template I can pull the image from the matching photo row and display it.

I’ve tried endless solutions but none work..

I feel I need a helping hand from an experienced programmer.

Kind regards

Answer 1

PhotoAlbum model:

belongs_to :photo

view:

image_tag(photo_album.photo(photo_album.photo_id).image

Very, very simple fix inspired by Frederick Cheungs comment.