how can i get and set the session value that is store as a tuple?
e.g.
*controllers/transaction.py*
def purchase_order_callback():
#from gluon.debug import dbg
#dbg.set_trace()
id = int(request.vars.id)
quantity, price = session.purchase_order.get(id, (0, 0) )
if request.vars.action == 'add':
quantity = max(0, int(quantity) + 1)
price = max(0, int(price) + 2)
session.purchase_order[id] = quantity, price
return str(session.purchase_order[id][0])
if request.vars.action == 'subtract':
quantity = max(0, int(quantity) - 1)
price = max(0, int(price) - 2)
session.purchase_order[id] = quantity, price
return str(session.purchase_order[id][0])
if request.vars.action == 'adjust_total_price':
quantity = int(request.vars['quantity_%s' % id])
price = int(request.vars['price_%s' % id])
session.purchase_order[id] = quantity, price
total_price = quantity * price
grand_total = 0
for calculation_id, (calculation_quantity, calculation_price) in
session.purchase_order.items():
calculation_total_price = calculation_quantity * calculation_price
grand_total += calculation_total_price
return
"jQuery('#total_price_%s').html(%s);jQuery('#grand_total').html(%s);" %
(str(id), str(total_price), str(grand_total))
*views/transaction/purchase_order.html*
{{grand_total = 0 }}
<table class="table table-condensed table-hover">
<tr>
<th>{{=T('Name') }}</th>
<th>{{=T('Quantity') }}</th>
<th>{{=T('Price') }}</th>
<th>{{=T('Total Price') }}</th>
<th>{{=T('Action') }}</td>
</tr>
{{for id, (quantity, price) in session.purchase_order.items():}}
{{product = db.product(id) }}
{{total_price = quantity * price}}
{{grand_total += total_price}}
<tr>
<td>
{{=SPAN(product.name) }}
</td>
<td>
<form>
<input name="{{='quantity_%s' % product.id}}" value="{{=quantity}}"
class="span1"
onkeyup="ajax('{{=URL('purchase_order_callback', vars = dict(id =
product.id,
action = 'adjust_total_price') ) }}', ['{{='quantity_%s' % product.id}}'],
':eval' )" />
</form>
</td>
<td>
<form>
<input name="{{='price_%s' % product.id}}" value="{{=price}}" class="span1"
onkeyup="ajax('{{=URL('purchase_order_callback', vars = dict(id =
product.id,
action = 'adjust_total_price') ) }}', ['{{='price_%s' % product.id}}'],
':eval' )" />
</form>
</td>
<td>
Rp. {{=SPAN('%s' % format(total_price, ",d"), _id = 'total_price_%s' %
product.id) }}
</td>
<td>
{{=SPAN(A(I(_class='icon-remove-sign'),
callback=URL('purchase_order_callback', vars=dict(id=product.id,
action='remove') ),
delete='tr', _title='Remove from Order') ) }}
</td>
</tr>
{{pass}}
<tr>
<td colspan=2></td>
<td>{{=B(T('Grand Total') ) }}</td>
<td>Rp. {{=SPAN('%s' % format(grand_total, ",d"), _id = 'grand_total')
}}</td>
<td></td>
</tr>
</table>
{{=SPAN(A(T('Process'), _href=URL('purchase'), _title='Process Purchase
Order',
_onclick="javascript:return confirm('Are you sure you want to
process?')",
_class='btn btn-success') ) }}
{{=SPAN(A(T('Empty'), _href=URL('purchase_order_empty'), _title='Empty
Purchase Order',
_onclick="javascript:return confirm('Are you sure you want to empty?')",
_class='btn btn-success') ) }}
{{=response.toolbar()}}
*session.purchase_order[id] = quantity, price*
is work fine when add and subtract is execute but when adjust_total_price
it's not work. trying to the debugging, at first the price and quantity
type is int with the value, but when it reach the adjust_total_price, it
return an error :
TypeError: int() argument must be a string or a number, not 'NoneType'
any idea how to resolve this?
thanks and best regards,
stifan
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