>>>  db.category.name.default = request.args(0)
 That's a good idea. I forgot that you can just change that before building
the form.
Thanks


On Wed, 8 Jul 2020 at 23:33, Jim S <ato.st...@gmail.com> wrote:

> Here is how I'd do it:
>
> Controller:
> def category():
>     db.category.name.default = request.args(0)
>     form=SQLFORM(db.category)
>     return dict(form=form)
>
> Template:
> {{extend 'layout.html'}}
> {{=form}}
>
> There are a couple of issues in your example
>
> 1.  You're using SQLFORM to create a form, but then you aren't doing
> anything with it.  You need to pass it to your template for it to be useful.
> 2.  The else portion of the if form.process().accepted is executed anytime
> you call the controller and haven't submitted the form.  Therefore, on your
> initial display of the form, your error message will display.
>
> I hope this helps.
>
> -Jim
>
> On Tuesday, July 7, 2020 at 7:33:30 PM UTC-5, AGRogers wrote:
>>
>> OK. After you declare the form but before you process it you can set the
>> form.vars.FieldName property. I think that might help.
>>
>> On Wed, 8 Jul 2020, 4:36 am Anusha Narayan, <anusha...@gmail.com> wrote:
>>
>>> Yeah! The first question, is what I am talking about.
>>>
>>> On Mon, 6 Jul 2020, 8:56 pm AGRogers, <roge...@gmail.com> wrote:
>>>
>>>> Do you mean you want to set the EVENT_ID so that it's already selected
>>>> when the form opens?
>>>>
>>>> Or are you saying that after you select the Event and submit the form
>>>> you get an error?
>>>>
>>>> On Sat, 4 Jul 2020, 3:27 pm Anusha Narayan, <anusha...@gmail.com>
>>>> wrote:
>>>>
>>>>> *The code of my model db.py is:*
>>>>>
>>>>> db.define_table(
>>>>>                 'event_table',
>>>>>                 Field('event_name'),
>>>>>                 Field('organizer_name'),
>>>>>                 )
>>>>>
>>>>> db.define_table('category',
>>>>>                 Field('Category_name',requires=IS_NOT_EMPTY()),
>>>>>                 Field('Event_id',db.event_table)
>>>>>                 )
>>>>>
>>>>> *The controller looks like:*
>>>>>
>>>>> def category():
>>>>>
>>>>>     form=SQLFORM(db.category)
>>>>>     if form.process().accepted:
>>>>>         response.flash='form has accepted'
>>>>>     else:
>>>>>         response.flash='form has errors'
>>>>>     return dict()
>>>>>
>>>>>
>>>>> *The code for the view (default/category.html) is:*
>>>>>
>>>>> {{extend 'layout.html'}}
>>>>>
>>>>>
>>>>>
>>>>>   <form action="#" enctype="multipart/form-data" method="post"><ul>
>>>>>
>>>>>   <li>category name: <input name="Category_name" 
>>>>> value="{{=request.args(0)}}"/></li>
>>>>>   <li>event_id type: <input name="Event_id" ></li></ul>
>>>>>     <input type="submit" value="Submit" />
>>>>>  </form>
>>>>>
>>>>>
>>>>> *(Here I am trying to pass the event id through the request argument of 
>>>>> the URL. But when I submit the form, it says "form has errors". Why is 
>>>>> that happening? I am not able to understand.?*
>>>>>
>>>>> --
>>>>> Resources:
>>>>> - http://web2py.com
>>>>> - http://web2py.com/book (Documentation)
>>>>> - http://github.com/web2py/web2py (Source code)
>>>>> - https://code.google.com/p/web2py/issues/list (Report Issues)
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>>>>> .
>>>>>
>>>> --
>>>> Resources:
>>>> - http://web2py.com
>>>> - http://web2py.com/book (Documentation)
>>>> - http://github.com/web2py/web2py (Source code)
>>>> - https://code.google.com/p/web2py/issues/list (Report Issues)
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>>>> .
>>>>
>>> --
>>> Resources:
>>> - http://web2py.com
>>> - http://web2py.com/book (Documentation)
>>> - http://github.com/web2py/web2py (Source code)
>>> - https://code.google.com/p/web2py/issues/list (Report Issues)
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>>> .
>>>
>> --
> Resources:
> - http://web2py.com
> - http://web2py.com/book (Documentation)
> - http://github.com/web2py/web2py (Source code)
> - https://code.google.com/p/web2py/issues/list (Report Issues)
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>

-- 
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- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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