All,
I''ve just started Rails and Ruby a week or so ago. Please forgive me
for my ignorance. I started writing a small test application to test
some of my new knowledge and have hit a wall. Would like some best
practices.
I have 3 tables, as below...
CREATE TABLE `carts` (
`id` int(11) NOT NULL auto_increment,
`name` varchar(255) NOT NULL,
`quantity` int(11) NOT NULL,
PRIMARY KEY (`id`)
CREATE TABLE `orders` (
`id` int(11) NOT NULL auto_increment,
`name` varchar(255) NOT NULL,
`address` varchar(255) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=2 ;
CREATE TABLE `order_details` (
`id` int(11) NOT NULL auto_increment,
`name` varchar(255) NOT NULL,
`quantity` int(11) NOT NULL,
`order_id` int(11) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=4 ;
model cart.rb
class Cart < ActiveRecord::Base
end
model order.rb
class Order < ActiveRecord::Base
has_many :order_details
end
model order_detail.rb
class OrderDetail < ActiveRecord::Base
belongs_to :order
end
In the carts table holds a shop cart with product details. For the
ease of implementation, I''ve refrained from putting relationships with
a product table or any session. Let''s just say, the field name
"name"
is the product name and "quantity" holds the quantity.
What I want to do is when the order is created via a form with the
"name" and "address" fields, it will create
1. The order in the order table
2. Utilize the relationship in the model and update/create the
order_details from the contents of the cart table.
My question is if there is a simpler way to do the following with a
more ruby like way. I''ve read in a book that you can do a
@order.order_detail << @cart based on the code below.
Any advice is greatly appreciated.
What I''ve done in the controller is this ...
order_controller.rb
class OrderController < ApplicationController
def new
end
def create
@cart = Cart.find(:all)
@order = Order.new(params[:order])
@order.save!
@cart.each do |cart|
@order_details = OrderDetail.new
@order_details.name = cart.name
@order_details.quantity = cart.quantity
@order_details.order_id = @order.id
@order_details.save!
end
end
end
------
view order/new.rhtml
<% form_tag :action => ''create'' do %>
<p><label for="name">Name</label><br/>
<%= text_field ''order'', ''name''
%></p>
<p><label for="name">Address</label><br/>
<%= text_field ''order'', ''address''
%></p>
<%= submit_tag "Create" %>
<% end %>
view order/create.rhtml
<h1>OK!</h1>
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