Ruby on Rails

My models:

class Product < ActiveRecord::Base                                                                                                                                               

    has_many :Orders_Products

    has_many :Orders, through: :Orders_Products

end

class OrdersProduct < ActiveRecord::Base                                                                                                                                         

    belongs_to: Order

    belongs_to: Product

end

class Order < ActiveRecord::Base

    has_many :Order_Products

    has_many :Products, through: :Orders_Products                                                                                                                                  

end

Now my next question is when I do @cart.products.create(session[:products]), if I have more fields in the session like current price (I just added that to the database) and quantity will it save it to the Orders_Products table or will it just ignore those fields?

Thanks for all the help,

-Brandon

On Thursday, March 1, 2012 8:48:16 AM UTC-5, Walter Lee Davis wrote:

On Feb 28, 2012, at 11:42 PM, Brandon Might wrote:

> So this whole many-to-many thing has me really confused. I get how to set it up but I can't seem to find anywhere that really explains the best way to use it in your controller.
>
> What I have:
>
> Products, Orders, Orders_Products
>
> The Products and Orders table has the standard stuff (Id, name, timestamps, etc)
>
> The Orders_Products table has the two id columns (order_id, product_id) and a quantity column.

What do your models look like, exactly? What do your has_many and belongs_to methods read as?
>
> What I need to do:
>
> Now when I save my "cart" how do you save a new order and each product with its quantity?

If you have set up your models correctly to explain the relationship, then all you need to do is get a handle to your cart:

@cart = Order.find(session[:cart_id]) #for example

and then add to its products collection

@cart.products.create(params[:products]) #assuming you have a form for the products

When you save @cart, the relationship will be saved to the database, when you find @cart a second time, the @cart.products will be available to work with.

Walter
>
> This is my first app in rails so the more explanation the better.
>
> Thanks in advance for all the help!
>
>
> --
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On Thursday, March 1, 2012 8:48:16 AM UTC-5, Walter Lee Davis wrote:

On Feb 28, 2012, at 11:42 PM, Brandon Might wrote:

> So this whole many-to-many thing has me really confused. I get how to set it up but I can't seem to find anywhere that really explains the best way to use it in your controller.
>
> What I have:
>
> Products, Orders, Orders_Products
>
> The Products and Orders table has the standard stuff (Id, name, timestamps, etc)
>
> The Orders_Products table has the two id columns (order_id, product_id) and a quantity column.

What do your models look like, exactly? What do your has_many and belongs_to methods read as?
>
> What I need to do:
>
> Now when I save my "cart" how do you save a new order and each product with its quantity?

If you have set up your models correctly to explain the relationship, then all you need to do is get a handle to your cart:

@cart = Order.find(session[:cart_id]) #for example

and then add to its products collection

@cart.products.create(params[:products]) #assuming you have a form for the products

When you save @cart, the relationship will be saved to the database, when you find @cart a second time, the @cart.products will be available to work with.

Walter
>
> This is my first app in rails so the more explanation the better.
>
> Thanks in advance for all the help!
>
>
> --
> You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
> To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/NZFLIYGhDL8J.
> To post to this group, send email to rubyonrails-talk@googlegroups.com.
> To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com.
> For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.