Here is the relevant snippet from my Web2Py view:
{{for candidate in rows:}}
<div class="well col-sm-12">
<button type="button" name="up_button" onclick="ajax('{{=URL('default',
'arrow_button_callback')}}', ['name'], 'target')" class="fa fa-caret-up
arrow-up fa-4x"></button>
<span>{{=candidate.votes}}</span>
<button type="button" name="down_button"
onclick="ajax('{{=URL('default', 'arrow_button_callback')}}', ['name'],
'target')" class="fa fa-caret-down arrow-down fa-4x"></button>
{{=IMG(_src=URL('photos',candidate.path_to_photo), _alt="Photo of
Candidate")}}
{{=candidate.name}}
<div id="target"></div>
</div>{{pass}}
And the relevant snippet from my Web2Py controller:
def arrow_button_callback():
response.flash = str(request.post_vars.name)
return request.post_vars.name
So why do I see the string "None" in my target div (and in my flash)?
Thank you for your help. I read chapter 11 of the Web2Py book and I'm still
confused.
I really want to be able to pass candidate.id (depending on which row's
button was pressed) and the button direction to controller variables.
Please let me know if there's a better way to do this.
--Benjamin
stack overflow crosspost
<http://stackoverflow.com/questions/34894755/why-does-this-web2py-ajax-call-fail-to-return-the-value-of-a-variable>
--
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- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
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