I am new to Ruby/Rails, and I’m writing an app that allows the user
to
upload mulitple images to attach to a user. The user data is stored
in
the Entity model, and the picture data (including file_column) is
stored
in the Picture model, which has a foreign key to the entity.id. I
want
to store the pictures in a directory that has the Entity’s id as the
last directory name, not the picture’s id. Base upon what I’ve read,
I
have to use a callback procedure in Picture to create the appropriate
directory. This is what I came up with:
entity.rb
class Entity < ActiveRecord::Base
validates_presence_of :lastname, :address1, :zip, :phone
belongs_to :entitytype
has_and_belongs_to_many :entitysubtypes
belongs_to :state
belongs_to :city
belongs_to :agency
belongs_to :agent
belongs_to :screentemplate
has_many :comments
has_many :pictures
end
picture.rb
class Picture < ActiveRecord::Base
belongs_to :entity
file_column :image,
:web_root => “/picture/entity/”,
:store_dir => :new_store_dir
def new_stor_dir
return "/picture/entity/" + :entity.id + "/"
end
entity_controller.rb
def upload
@entity = Entity.find(params[“id”])
@pictures = @entity.pictures.build(params[:pictures])
@entity.pictures.each { |pic| pic.attributes =
params[:picture][pic.id.to_s] }
if @entity.update_attributes(params[:entity])
flash[:notice] = “Pictures uploaded.”
else
flash[:notice] = “Problem uploading pictures.”
end
render :action => ‘show’, :id => @entity
end
I must be doing something wrong because I get no file name in the
database. I suspect that, since it worked fine without the callback
label in store_dir, it must be something I’m doing. Any ideas? Any
help
would be greatly appreciated!
Thanks.