Multiple rows of data with a single form (Page 1 of 2)

I had read through that tutorial, but I couldn't seem to adopt the code for my project since I'm just interacting with a single model.

Can someone please show me what the 'edit' / 'update' actions would look like? I am kind of stuck. Much obliged

My code works in internet explorer 7.00 but not in Safari or Firefox when adding more than one item can anyone tell me why
Thanks
Martin

 
Models
BakeryOutput
 belongs_to  :recipe
Recipe
 has_many  :bakery_outputs
Controller
  def new
    @bakery_outputs = Array.new(1) {BakeryOutput.new} 
  end
  
  def create
   # @bakery_output = BakeryOutput.new(params[:bakery_output])
    @bakery_outputs = params[:bakery_outputs].values.collect { |bakery_output| BakeryOutput.new(bakery_output)}
    if @bakery_outputs.all?(&:valid?)
      @bakery_outputs.each(&:save!)
      redirect_to :action => 'index'
    else
      redirect_to :action => 'new'
   end
  def add_product
    @bakery_outputs = BakeryOutput.new
  end
Views
new.rhtml
<div id="sales_content" align="center">
<h3>Sales<%= error_messages_for :bakery_output %>
      <% form_for(:bakery_output, :url => bakery_outputs_path) do |j| %>
    </h3>
<div id="headings">
<b>Customer</b>
    <b>Product</b>
    <b>Qty</b>
   <b>Date</b>
    <b>Batchcode</b>
</div>
<div id="products">
    <% @bakery_outputs.each_with_index do |bakery_output, index| %>
        <%= render :partial => 'product_fields', :locals => {:bakery_output => bakery_output, :index => index }%>
    <% end %>
</div>
    <%= render :partial => 'add_product_link', :locals => { :index => @bakery_outputs.size}%>
<%= submit_tag "Save All" %>
  <% end %>
    <%= link_to 'Cancel', bakery_outputs_path %>
</div>
Partials
<div id="add_product_link">
    <%= link_to_remote 'Add another sale', :url =>  {:action => 'add_product', :index => index} %>
</div>
<div id="product_<%= index %>">
    <% fields_for "bakery_outputs[#{index}]", bakery_output do |f| %>
<% @customers = Customer.find(:all, :select => "id, company", :order => "company")%>
  <%= f.select(:customer_id, @customers.map{|u| [u.company, u.id]} + ['Add New']) %>
<% @recipes = Recipe.find(:all, :select => "id, name", :order => "name")%>
  <%= f.collection_select(:recipe_id, @recipes, :id, :name) %>
<%=  f.text_field :sales_quantity, :size =>3 %>
<%= f.date_select :saledate, :order => [:day, :month, :year]%>
<%= f.text_field :salebatchcode, :size => 10 %>
    <% end %>
    </div>

Thanks to Mr. Ryan,

For providing such an important code. I had to modify it a bit to make it compatible with Rails 2. I have been struggling a lot to find the solution to the problem reported in this thread.

Here is the modified code compatible with Rails 2.

### Your controller
 def new
   @owners = Array.new(3) { Owner.new } # set up any defaults here
 end
 def create
   @owners = params[:owners].values.collect { |owner| Owner.new(owner) }
   if @owners.all?(&:valid?)
     @owners.each(&:save!)
     redirect_to :action => 'index'
   else
     render :action => 'new'
   end
 end
### Your View - new.erb.html
 <% form_tag :action => 'create' do %>
 <% @owners.each_with_index do |owner, index| %>
   <% fields_for "owners[#{index}]", owner do |f| %>
     First Name: <%= f.text_field :firstname  %>
     Last Name: <%= f.text_field :lastname  %>
   <% end %>
 <% end %>
        <%= submit_tag %>
 <% end %>

Last edited by ankit644 (2009-03-23 00:03:16)

hi.... I am a noob to rails  and also new to the forum...kindly excuse me for my mistakes.....anyways for the past few weeks i am stuck at a certain problem of submitting multiple rows at the same time...but i guess i have a unique problem in itself...

my new form looks like this... its actually a partial (_new.rhtml) which renders another form fields partial (_form2.rhtml)

<div class="in_new_div">
  <% form_remote_tag :url => {:action => 'create'}, :update => "body" do %>

    <div id = "new_form" >
       <%= render :partial => 'form2' %>
    </div>

    <%= link_to_function "Add More" do |page| page.insert_html :bottom, :new_form, :partial => 'form2', :object => Expense.new end %>
    <%= submit_tag "Create" %> <%= link_to_function "Cancel", "this.up('.in_new_div').remove()" %>
  <% end %>  
</div>

here when i click the add more link...more form text fields show up one below each other... so after i click add more 3 times i now have this in the view

Category   Add new Category  Item    Quantity    Price
Created at — : remove
Category   Add new Category Item   Quantity   Price
Created at — : remove
Category   Add new Category Item   Quantity   Price
Created at — : remove
Category   Add new Category Item   Quantity   Price
Created at — : remove
Add More  Create Cancel

where create is a submit button for the form..
what i want is when i click create .. it should create 4 rows in the table. 

currently in the controller i have

def create
    @expense = Expense.new(params[:expense])
    @expense.user_id = session[:user_id].to_i    # i have set attr_protected :user_id in the model
    .....
    ....
end

what changes should i made in order to create dynamic number of records (in this case 4) when i click the submit button..
Thanks for the help in advance

Last edited by varun.coolmax (2009-12-14 21:57:00)

Hi Ryan -

Your Railscasts are excellent. The multiple models-one form was one I was particularly interested in - do you have any plans to refactor the code so it works under Rails 2? Downloading the code and firing it up (Rails v 2.3.5) fails. Were I not relatively new to Rails, it might be an easy fix. As I am not, it is not.

If not, no worries - I am not complaining at all, just working around the issues in my own slow way.

Thanks for the free Railscasts, and for anyone who has not looked at Ryans in-depth, for-pay screencasts, available at Pragmatic, they are worth every penny.

How does this same scenario (multiple rows of data with a single form) workout when the inputs are checkboxes?

Usecase : the form collects the interests of users. There are 3 interest types that are in the database (interesttype table, name:string values are music, lights, editing).

the input form should have a all the 3 interest types displayed as 3 checkboxes and user can select their interests.

the form also has an input text field called 'comments'

if 3 interest types are selected then 3 objects need to be written into the association table one for each interest
if only one interest type is selccted then only 1 object needs to be written into the association table.

---------------------------------
my controller:
-----------------------
def new
     @userinterests = Array.new(10) { Userinterest.new } #userinterest has the interesttype_id and user_id

end

what will the view look like for checkboxes??

any help is apprecaited.

Thanks
Sumi

How Will I save The Date Attribute  . i have a date , month and year attribute with the data type string to my model
and whenever i try to save the date year and month i get the

this is a Damn good tutorial ...but i still have a problem when saving date ..please can somebody tell me how to save multiple dates along with the other attributes.  it gives me an error