Ruby on rails image gallery using paperclip

Question

I'm creating an image gallery website, and have some problems. I tried searching, but it's hard because i cannot really describe this problem.

i want to have thumbnail images on my index page, but i can't get it working.

why does this code inside /views/index.html.erb

    <% @galleries.each do |gallery| %>
    <%= image_tag gallery.photos(:small).last %>
    <%= link_to gallery.title, gallery_path(gallery) %>

doesn't show me photos, just blank spaces where photos supposed to appear. When i right click on them to open in new tab, it links to /images/#..... and gives No routes error.

On show.html.erb pictures are shown with this code:

      <% @gallery.photos.each do |photo|%>
      <%= image_tag photo.image(:medium) %>
     <% end %>

models are: gallery has many photos, photos belongs to gallery.

gallery controller: def index @galleries = Gallery.all.order(created_at: :desc) end

    def show
        @gallery = Gallery.find(params[:id])
    end

routes: resources :galleries resources :photos

Kuldeep · Accepted Answer · 2014-10-01 06:15:56Z

1

@rubynuby: Just try this:

<% @galleries.each do |gallery| %>
<%= image_tag gallery.photos.last.image.url(:small) %>
<%= link_to gallery.title, gallery_path(gallery) %>

As what I observed form you question is:

in models/gallery.rb

class Gallery
  has_many :photos
end

in models/photo.rb

class Photo
  belongs_to :gallery
  has_attached_file :image, styles: {
                      small:  '150x150>',
                      medium: '600X600>'
                    }

end

So as per your requirement, you need call image on photo, i.e. photo.image.url(<style>)

answered Oct 1, 2014 at 6:15

Kuldeep

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