Re: MVC design for shopping cart

Write re-usable query methods in the appropriate models. If you're
dealing with product id's then use the products controller and any tax
calculations etc can be handled in a model or if need be component.

Im not sure why you would need a 'cart controller' if you don't have
cart records.

If you really need a table for this functionality look up temporary
mysql tables, but i wouldn't recommend using $this->query instead i'd
write efficent querys and index my tables

My 2 cents...

Sent from my iPhone

On 28 Feb 2012, at 21:06, Christian <google@mein-schnuller.de> wrote:

> Hi,
>
> I'm currently trying to create a shopping cart solution with cake 1.3.
> In the current design, only the product id of a chosen product will be
> saved in the session, each time the customer lists the cart items, all
> information needs to be read out of the database.
> My idea was to create a seperated model (no relation to any table)
> where all cart calculations can happen in, which can then be used in
> several controllers. However, this would mean that this cart class
> would need to use several other product related models (product
> details, taxes, countrydetails, etc.), which is not easily supported
> by cake, since it breaks the MVC model.
> The workaround would be to implement the logic in a controller where I
> can easily access all models, however, this breaks two other basics,
> once the "fat model skinny controller" rule and on the other hand the
> code is not easily reusable for other purposes.
>
> My question is now how where to implement the cart functionality (e.g.
> summary price, discount, taxes calculation, etc.) without breaking MVC
> but with sticking to "fat model skinny controller" and the re-
> usability of my code.
>
> Thanks,
> Christian
>
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