why are you not doing this:
* if request.vars.action=='remove':*
* del session.order[id]*
*
*On Monday, February 11, 2013 11:16:52 AM UTC-7, 黄祥 wrote:
>
> hi anthony,
>
> here is the code :
> *# controller *
> def order_callback():
> id=int(request.vars.id)
> if request.vars.action=='add':
> session.order[id]=session.order.get(id, 0)+1
> if request.vars.action=='sub':
> session.order[id]=max(0,session.order.get(id, 0)-1)
> *# if request.vars.action=='remove':*
> *# session.order[id]=session.order.clear()*
> * if request.vars.action=='remove':
> *
> * session.order[id]=session.clear()*
> return str(session.order[id])
>
> *#view order.html*
> <table width="100%">
> {{for id, qty in order.items():}}
> {{p=db.product(id)}}
> <tr>
> <td>{{=p.product_name}}</td>
> <td>Rp. {{=p.unit_price}}</td>
> <td><span id="{{='item%s'%p.id}}">{{=qty}}</span>
> {{=SPAN(A('Add', callback=URL('order_callback', vars=dict(id=p.id,
> action='add')), target='item%s'%p.id, _title='Add the Order', _class='btn
> btn-navbar'))}} {{=SPAN(A('Sub', callback=URL('order_callback',
> vars=dict(id=p.id, action='sub')), target='item%s'%p.id,
> _title='Substract the Order', _class='btn btn-navbar'))}}
> *{{=SPAN(A('Remove',
> callback=URL('order_callback', vars=dict(id=p.id, action='remove')),
> target='item%s'%p.id, _title='Remove the Order', _class='btn
> btn-navbar'))}}*</td>
> </tr>
> {{pass}}
> </table>
>
> the code is learned from pos online store (appliance), i've tried to add
> remove function so that the product that user click can be remove as well
> (not just add and subtract).
> if tried both session.order.clear() and session.clear() in controller but
> all of it is not work.
> please show me the part that i make it wrong.
> thank you so much in advance before
>
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