No, you cannot have two targets (even if you could, your attempted syntax
of providing two "target" keywords in a single function call would be
illegal in Python). However, you can specify ":eval" as the target, in
which case the callback function can return Javascript code that does
whatever you want, including putting some returned value into multiple
target divs. See http://web2py.com/books/default/chapter/29/11#Eval-target.
Anthony
On Wednesday, February 20, 2013 10:02:40 AM UTC-5, 黄祥 wrote:
>
> hi,
>
> is it possible for callback target in two places?
>
> *e.g. 1. not work*
> <table width="100%">
> {{for id, qty in order.items():}}
> {{p=db.product(id)}}
> <tr>
> <td>{{=SPAN(p.product_name)}}</td>
> <td>{{=SPAN('Rp. %s' % p.unit_price)}}</td>
> <td>{{=SPAN(qty, _id='item_%s' % p.id)}}</td>
> <td>{{=SPAN(qty*p.unit_price, _id='total_%s' % p.id)}}</td>
> <td>{{=SPAN(A('Add', callback=URL('order_callback', vars=dict(id=
> p.id, action='add')), *target='item_%s' % p.id, target='total_%s' % p.id*,
> _title='Add Quantity', _class='btn btn-navbar'))}}</td>
> </tr>
> {{pass}}
> </table>
>
> *e.g. 2. not work*
> <table width="100%">
> {{for id, qty in order.items():}}
> {{p=db.product(id)}}
> <tr>
> <td>{{=SPAN(p.product_name)}}</td>
> <td>{{=SPAN('Rp. %s' % p.unit_price)}}</td>
> <td>{{=SPAN(qty, *_id='item_%s' % p.id*)}}</td>
> <td>{{=SPAN(qty*p.unit_price, *_id='item_%s' % p.id*)}}</td>
> <td>{{=SPAN(A('Add', callback=URL('order_callback', vars=dict(id=
> p.id, action='add')), *target='item_%s' % p.id*, _title='Add Quantity',
> _class='btn btn-navbar'))}}</td>
> </tr>
> {{pass}}
> </table>
>
> *e.g. 3. not work*
> <table width="100%">
> {{for id, qty in order.items():}}
> {{p=db.product(id)}}
> <tr>
> <td>{{=SPAN(p.product_name)}}</td>
> <td>{{=SPAN('Rp. %s' % p.unit_price)}}</td>
> <td>{{=SPAN(qty, *_class='item_%s' % p.id*)}}</td>
> <td>{{=SPAN(qty*p.unit_price, *_class='item_%s' % p.id*)}}</td>
> <td>{{=SPAN(A('Add', callback=URL('order_callback', vars=dict(id=
> p.id, action='add')), *target='item_%s' % p.id*, _title='Add Quantity',
> _class='btn btn-navbar'))}}</td>
> </tr>
> {{pass}}
> </table>
>
> i've tried it and an error occured. is it possible for callback target in
> two places?
>
> thank you very much
>
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