Uploading Images

rubyonrails-talk
1

Hi all,

I'm trying to do a file upload. I have followed the examples in Agile Web Development with Rails, and Rails Cookbook, and I can't get it to work!! The following code is from the Rails Cookbook. I have two tables: Items & Photos. It's supposed to save Name and Description into the Items table, and then grab the photo information and put it in the Photo table. The Item information is saving, but I'm blowing up in the Photo Model. It doesn't recognize the field names for the Photo table and also doesn't recognize the "read" attribute for the image. Any idea what I'm missing?? As always, any and all help is greatly appreciated!!! Thanks! ~Ali

ITEMS CONTROLLER

def new end

  def create     @item = Item.new(params[:item])

    # I don't understand this part -- how can it ever get past here??? I tried commenting it out, but still won't work.     if @item.save       flash[:error] = 'Problem Uploading'       redirect_to :action => 'new'       return     end

    @photo = Photo.new(params[:photo])     @photo.item_id = @item.id

    if @photo.save       flash[:notice] = 'Item was successfully created.'       redirect_to :action => 'list'     else       flash[:error] = 'There was a problem.'       render :action => 'new'     end   end

ITEMS MODEL

class Item < ActiveRecord::Base   has_many :photos end

PHOTOS MODEL

class Photo < ActiveRecord::Base

  belongs_to :item, :foreign_key => "item_id"

  def photo=(image_field)     self.name = base_part_of(image_field.original_filename)     self.content_type = image_field.content_type.chomp     self.data = image_field.read   end

  def base_part_of(file_name)     name = File.basename(file_name)     name.gsub(/[^\w._-]/, '')   end

end

ITEM/_FORM

<div class="errorExplanation p"><%= flash[:error] %></div>

<!--[form:item]-->

<p><label for="item_name">Name</label><br/> <%= text_field 'item', 'name' %></p>

<p><label for="item_description">Description</label><br/> <%= text_field 'item', 'description' %></p>

<p><label for="photo">Photo</label><br/> <%= file_field('photo', 'photo') %></p>

<!--[eoform:item]-->

ITEM/NEW

<h1>New Item</h1>

<%= start_form_tag :action => 'create', :id => @item, :multipart => true %>   <%= render :partial => 'form' %>   <%= submit_tag "Create" %> <%= end_form_tag %>

2

Hi again, No one has responded to my post and I'm wondering if I worded it in a confusing way? I really need some help with this. I have been scouring books and the web to no avail. If further clarification is needed, please ask! I would really appreciate any suggestions!!

Thanks again!! ~Ali

3

Yeah, this is a problem. Look at what you have here...

"If the item is successfully saved then flash error redirect to new stop processing"

While this won't prevent your item from being saved, it is causing the controller to stop processing before the photo statements are called.

Try 'unless @item.save'

I'm also not sure that the photo uploading part of your photo model will ever get called, since this form is in the /user application... Uploads are something I struggled with myself, so I'm not going to say much more about that. In my application the form only handles creating an upload, not an item _and_ and upload. (There is a seperate form for creating the item.)

Good luck!

4

It's working!! Thank you so much!! I love this forum - I'd be lost without it!!