sqlite - Paperclip and nested attributes - not writing to the database -

i'm trying upload multiple files on form. followed rail casts paperclip , nested attributes, , tutorial http://sleekd.com/general/adding-multiple-images-to-a-rails-model-with-paperclip/ can't seem working...

i've searched here in stack overflow, looked @ paperclip , nested attributes posts, can't seem find answer, seems i'm doing right...

what happens when submit form, creates ad (it's ad app), says ok, doesn't write image data database , doesn't upload files...

so have classified model:

class classified < activerecord::base has_many :classified_images, :dependent => :destroy  accepts_nested_attributes_for :classified_images, :reject_if => lambda { |t| t['classified_image'].blank? }  attr_accessible :classified_images_attributes, :access, :contact, :price, :biztype  end 

then, classified_image model:

class classifiedimage < activerecord::base belongs_to :classified has_attached_file :photo, :styles => {:small => "150x150>", :large => "320x240>"},   :url => "/assets/products/:id/:style/:basename.:extension",   :path => ":rails_root/public/assets/classifieds/:id/:style/:basename.:extension"  validates_attachment_presence :photo validates_attachment_size :photo, :less_than => 5.megabytes  attr_accessible :caption, :photo end 

on classified controller, on "new" part, have: def new @classified = classified.new

3.times { @classified.classified_images.build }  respond_to |format|   format.html # new.html.erb   format.json { render json: @classified } end  end 

on "_form" have:

<%= form_for @classified, :html => { :multipart => true } |f| %> ... <%= f.fields_for :classified_images |builder| %> <%= render 'image_fields', :f => builder %> <% end %> 

on "image_fields" partial have:

<% if f.object.new_record? %> <li> <%= f.label :caption %> <%= f.text_field :caption %> <%= f.label :photo %> <%= f.file_field :photo %> </li> <% end %> 

on migration files have:

class addattachmentphototoclassifiedimages < activerecord::migration def self.up   add_attachment :caption, :classified_id, :photo end  def self.down drop_attached_file :caption, :classified_id, :photo end end  class createclassifiedimages < activerecord::migration def change create_table :classified_images |t|   t.string :caption   t.integer :classified_id    t.timestamps end end end 

on "development.rb" file have:

 paperclip.options[:command_path] = "/usr/local/bin/"  paperclip.options[:log] = true 

here's example of log when commit form:

started post "/classifieds" 127.0.0.1 @ 2013-05-19 23:39:43 +0100 processing classifiedscontroller#create html parameters: {"utf8"=>"✓", "authenticity_token"=>"978kgjsulmmevr6tysg5xyieqznln5vod07g+z7njku=", "classified"=>{"contact"=>"918218338", "price"=>"1500", "access"=>"bons", "classified_images_attributes"=>{"0"=>{"caption"=>"teste", "photo"=>#@original_filename="064_dont-count-the-days.jpg", @content_type="image/jpeg", >@headers="content-disposition: form-data; name=\"classified[classified_images_attributes][0][photo]\"; filename=\"064_dont-count-the-days.jpg\"\r\ncontent-type: image/jpeg\r\n", >@tempfile=#3954-11t04t>>}, "1"=>{"caption"=>""}, "2"=>{"caption"=>""}}}, "commit"=>"criar novo >classificado"} (0.1ms) begin transaction sql (0.5ms) insert "classifieds" ("access", "contact", "created_at", "price",) >values (?, ?, ?, ?) [["access", "bons"], ["contact", "918218338"], ["created_at", sun, 19 >may 2013 22:39:43 utc +00:00], ["price", 1500], ["updated_at", sun, 19 may 2013 22:39:43 utc >+00:00]] (0.8ms) commit transaction redirected localhost:3000/classifieds/8 completed 302 found in 5ms (activerecord: 1.4ms)

as can see, inserts "classifieds" table not "classifieds_image" table, , also, don't info paperclip...

sorry code should simple i'm not seeing , more information you've got, better can me... please let me know if need more code or info...

we spent days chasing similar problem. in end :reject_if lambda accepts_nested_attributes_for call in model triggered in wrong situations.

now revisit question, seems have same issue. instead of:

:reject_if => lambda { |t| t['classified_image'].blank? } 

you should have:

:reject_if => lambda { |t| t['photo'].blank? } 

i.e. name of paperclip attribute instead of nesting model.

---

it frustrating thing wrong since fails silently, t['classified_image'] nil time , attributes rejected specified. :) @ least learned more careful :reject_if...