creating a shopping cart using session

[Hassan Alnatour]

Dear ALL , 

How can i create somting in the session that i can save things too , i want to create a shopping cart and save some items in it and after the user finish i want to send an email ,, any help guys or do you have any other ideas 

best regards

[pbreit]

You could save the items to the DB and then store the ID in session (session.cart_id=1) or store the contents right in the session cookie: session.cart_items=[{'id':123 ,'qty':1}, {'id':456, 'qty':3}]

[hasan alnator]

if i use the DB how would i know if the user finished shopping , and if i want to use session how do i add items to it ?

[pbreit]

Either way, you know the shopper is finished when they go to check out and pay. Maybe you mean, when do you delete the records from the DB? I would just leave them there. It is good to have a record of abandoned shopping carts.

One way is a simple list append: session.cart_items.append({'id':789 ,'qty':1})

But you may need to do more programming such as to handle adding an item to the cart that is already in the cart, deleting items, etc. But this should all just be basic Python list handling. You're just storing a list in the shopper's session cookie.

[hasan alnator]

The problem is that i dont have payments .. All payment are on delivary

[pbreit]

You don't have to have payments but there should be some indication the buyer has finished shopping, provided their address and is expecting to receive the items.

[Hassan Alnatour]

i am trying to work with session like you showed me but still when i add somthing it just changes the last element in the session to the element i added

[Keith Edmunds]

Show us the code.
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[Hassan Alnatour]

session.cart_items=[{'id':123 ,'qty':1}, {'id':456, 'qty':3}]

    items = session.cart_items        

    if request.vars:

        

            session.cart_items.append({'id':request.vars.id ,'qty':request.vars.qyt})

and in the view :

<a href="{{=URL('index',vars={'id':'1','qyt':'2'})}}">add</a>

{{=session.cart_items}}

 

[pbreit]

I think that should work but I haven't tried it.

What happens if you delete the first line "session.cart_items=..."? That's going to keep overwriting cart_items each time the controller is called.

You might have to ensure that cart_items is a list:

items = session.cart_items        

if request.vars:

    if not session.cart_items:

        session.cart_items = []

    session.cart_items.append({'id':request.vars.id ,'qty':request.vars.qyt})

The other thing I'm wondering is if you might need to re-write the list each time:

items = session.cart_items or []  

if request.vars:

    items.append({'id':request.vars.id ,'qty':request.vars.qyt})

    session.cart_items = items