Creating Two Models in One Form (Page 4 of 6)

Shouldn't this add a new test for a person ?

In person/list.rhtml:

<%= link_to 'Add test', :action => 'add_test', :id => person %>

in PersonController

def add_test
person = Person.find(params[:id])
@test = Test.new(:person => person)
render :template => 'test/edit'
end

Hi Ryanb,

your tutorial cought my eye becouse I would need to do the same thing. I just started learning ruby on rails, and I have tryed the method that you discribed. But it doesn't seem to work.

I'm just building a simple application to hold contact persons. I created everything using the ruby generation scripts. Even the form (used the scaffold to generate it). But now comes the tricky part for me. Every contact can have 0 to many notes. The thing is that I would like that the notes can be written in the edit/new form of a contact person.

I allready discribed most of it with some code samples how I managed so far in this post.

So I hoped that you could give me some pointers how to save new/edited notes.

Thank you in advance

Great tutorial, but how can I make a form that allows you to input multiple tasks in one go?

Hi,

I have to models, 'label' and 'image':

label has_one :image
image belongs_to :label

I am trying to generate a single form using the info in this tutorial. So that a user can add a new label and upload an image at the same time. I have also installed the attachment_fu and mini-magick plugins...

Below are my files:

The images migration/table;

class CreateImages < ActiveRecord::Migration
  def self.up
    create_table :images do |t|
      t.column :parent_id,  :integer
      t.column :content_type, :string
      t.column :filename, :string    
      t.column :thumbnail, :string 
      t.column :size, :integer
      t.column :width, :integer
      t.column :height, :integer
      t.column :label_id, :integer
    end
  end
  def self.down
    drop_table :images
  end
end

<h2>Add new Label</h2>
<%= error_messages_for :label, :image %>
<% form_for(:label, @label, :url => { :action => 'create'}, :html => { :multipart => true }) do |f| %>  
  <p>
      <label for="label_name">Name:</label><br/ >
      <%= f.text_field :name %>
  </p>
  <p>
      <label for="label_country">Country:</label><br/ >
      <%= f.text_field :country %>
  </p>
  <p>
     <label for="label_website">Website:</label><br/ >
      <%= f.text_field :website %>
  </p>
  <p>
      <label for="label_email">Email:</label><br/ >
      <%= f.text_field :email %>
  </p>
   <% fields_for(:image, @label.image) do |i| %>
  <p>
    <label for="label_image">Image:</label><br />
    <%= i.file_field :uploaded_data %>
  </p>
  <% end %>
    <%= submit_tag 'Create' %>
<% end %>

def new
  @label = Label.new
  @image = Image.new
end
def create
@label = Label.new(params[:label])
@image = @label.build_image(params[:image])
  if @label.save
  redirect_to :action => 'list'
  else
  render :action => 'new'
  end
end

class Image < ActiveRecord::Base
belongs_to :label
has_attachment :content_type => :image, 
                 :storage => :file_system,
                 :path_prefix => 'public/upload',
                 :max_size => 500.kilobytes,
                 :resize_to => '320x200>',
                 :thumbnails => { :thumb => '100x100>' }
validates_as_attachment
end

Any help appreciated...

Thanks,

Pj,

Last edited by pjay79 (2007-11-11 23:24:05)

Actually I managed to figure it out , I was very close but not quite :

   @user.expiration_date = 60.days.from_now
    @user.UUID = UUID.timestamp_create().to_s
    @phones.save  # the line I need to insert to make the whole thing work
    @user.phones << @phones
    if @user.save

When the Project validation returns an error it's also returning "Tasks is invalid" along with any errors associated with tasks. How do you prevent this?

jstad, I just learned Rails last couple of days, I'm not sure if this is the correct way to do it but I'm sure it works.

Refer to Ryan's post, everything else remain the same, except for new.html.erb

# in the projects/new.html.erb
<h1>New Project</h1>
<%= error_messages_for :project, :task %>
<% form_for(@project) do |f| %>
<p>
  Project Name:
  <%= f.text_field :name %>
</p>
<% fields_for(@task) do |i| %>
<p>
  First Task:
  <%= i.text_field :name %>
</p>
<% end %>
<p>
  <%= f.submit 'Create' %>
</p>
<% end %>

In task.rb:

validates_uniqueness_of :title # or whatever your column's name is

arzumy,

I tried using your suggestion and it did not work for me - I also would like to be able to use this technique with Rails 2.0. Is there any chance you left somsething out?