schaf88 wrote in post #236924:
> howdy!
> I had the problem that attachment_fu didn't make a thumbnail, but
> everything else worked. I read this post
> http://www.ruby-forum.com/topic/104213 and added a parent_id column. now
> I get the following error when I trie to add a photo:
>
> undefined method `find_or_initialize_by_thumbnail_and_parent_id' for
> Photo:Class
>
> my code is:
>
> class Photo < ActiveRecord::Base
> has_attachment :content_type => :image,
> :storage => :file_system,
> :max_size => 1.megabyte,
> :thumbnails => { :thumb => '164x164>' }
> end
>
> create_table :photos do |t|
> t.column :filename, :string
> t.column :posted_on, :datetime
> t.column :description, :text
> t.column :name, :string
> end
>
> def create
> @photo = Photo.new(params[:photo])
> if @photo.save
> redirect_to :action => 'list'
> else
> render :action => 'new'
> end
> end
My first guess, You don't have 'thumbnail' column in your database
table.
The clue is in the error message:
'find_or_initialize_by_thumbnail_and_parent_id', means attachment_fu
looks for both 'thumbnail' and 'parent_id' column
My db table looks something like this and it works fine.
create_table :photos do |t|
t.string :filename, :null => false
t.string :content_type
t.string :thumbnail
t.integer :size
t.integer :width
t.integer :height
t.integer :parent_id
t.integer :album_id
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