well, given that you're not an expert on javascript events (:-P) I'd use
response.js in both the add and the sub functions to trigger the changes in
your total field.
This is one of the reasons that pushed me to create a new web2py.js (will
be available from 2.6.0) , but you need to be comfortable with js events
anyway. I think that your best shot is to put
response.js
='jQuery('#910').slideToggle();ajax("{{=URL(r=request,c='downld',f='order_reload')}}",[],'910');jQuery('#910').slideToggle();'
in the add and sub functions.
On Friday, August 2, 2013 10:07:13 AM UTC+2, Marco Prosperi wrote:
>
>
> I've started from the PosOnLine demo appliance. There with the 'add' and
> 'sub' buttons you can change the quantity of the products you want to buy,
> but there is no total. I've tried to add a total in the view so that when
> the the customer 'adds' a product both the quantity and the total changes.
> I can't figure out how to correctly fire the total change. There is a
> similar thread in this mailing on this subject list but without a useful
> conclusion
>
> Marco
>
>
> On Friday, August 2, 2013 9:51:31 AM UTC+2, Niphlod wrote:
>>
>> uhm. the change event must be hooked to an input that changes, not to a
>> piece of the page ... let me understand: you have a page with a total that
>> needs to be refreshed via ajax after having submitted with ajax the "add"
>> or the "sub" function ?
>>
>> On Friday, August 2, 2013 12:45:17 AM UTC+2, Marco Prosperi wrote:
>>>
>>>
>>> It was the first thing I tried, using the same view and the following
>>> script, but nothing happens in this case when the quantity changes. Maybe
>>> it interferes with the 'add' and 'sub' callbacks?
>>>
>>> <script>
>>> jQuery(document).ready(function(){
>>> jQuery('.e').change(function(){
>>> jQuery('#910').slideToggle();
>>> ajax("{{=URL(r=request,c='downld',f='order_reload')}}",[],'910');
>>> jQuery('#910').slideToggle();
>>> });
>>> </script>
>>>
>>>
>>> On Thursday, August 1, 2013 8:46:37 PM UTC+2, Niphlod wrote:
>>>>
>>>> well, you are hooking up to the event that gets fired every time an
>>>> ajax request completes.
>>>> you "trial" code just replace the fragment with a fixed value, but if
>>>> you use ajax instead the ajaxstop will fire in a loop, and it's correct
>>>> that it does it.
>>>> Why are you hooking up to the ajaxstop event instead of the change
>>>> event on the "quantity" field (as per your description on what is supposed
>>>> to happen) ?
>>>>
>>>> On Thursday, August 1, 2013 7:25:10 PM UTC+2, Marco Prosperi wrote:
>>>>>
>>>>>
>>>>> hello, I would like to update the total in the view below (bottom of
>>>>> the message) when the user changes quantity. The following script works
>>>>> fine (fixed value)
>>>>>
>>>>> <script>
>>>>> jQuery(document).ready(function(){
>>>>> $(document).ajaxStop(function(){
>>>>> jQuery('#910').slideToggle();
>>>>> jQuery('#910').html('25.0');
>>>>> jQuery('#910').slideToggle();
>>>>> return false;
>>>>> });
>>>>> });
>>>>> </script>
>>>>>
>>>>> but if I replace the jQuery('#910').html('25.0');
>>>>> with:
>>>>>
>>>>> ajax("{{=URL(r=request,c='downld',f='order_reload')}}",[],'910');
>>>>>
>>>>> where:
>>>>>
>>>>> def order_reload():
>>>>> total=sum((qty*db.product(idx).price for idx,qty in
>>>>> session.cart.items()),0.0)
>>>>> return HTML(str(total))
>>>>>
>>>>> then after the first increment of qty the total gets refreshed
>>>>> continuously. How can I avoid this?
>>>>>
>>>>> thank you in advance, Marco
>>>>>
>>>>> p.s.: here is the view
>>>>>
>>>>> {{extend 'layout.html'}}
>>>>> <h1>Checkout</h1>
>>>>> <h2>Cart</h2>
>>>>> <table width="100%">
>>>>> {{for id, qty in cart.items():}}{{p=db.product(id)}}
>>>>> <tr>
>>>>> <td>{{=p.name}}</td>
>>>>> <td>€ {{=p.price}}</td>
>>>>> <td><span class="e" id="{{='item%s'%p.id}}">{{=qty}}</span>
>>>>> {{=A('add',callback=URL('cart_callback',vars=dict(id=p.id
>>>>> ,action='add')),target='item%s'%p.id,_class='button
>>>>> pill')}}{{=A('sub',callback=URL('cart_callback',vars=dict(id=p.id
>>>>> ,action='sub')),target='item%s'%p.id,_class='button pill')}}
>>>>> </td>
>>>>> </tr>
>>>>> {{pass}}
>>>>> <tr>
>>>>> <td>Total</td>
>>>>> <!-- <td>€{{=sum((qty*db.product(id).price for id, qty in
>>>>> cart.items()),0.0)}}</td> -->
>>>>> <td><div class="one" id="910">€
>>>>> {{=sum((qty*db.product(id).price for id, qty in
>>>>> cart.items()),0.0)}}</div></td>
>>>>> </tr>
>>>>> </table>
>>>>>
>>>>>
>>>>>
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