[Flask] Access form data in view function

[Corey Boyle]

@Alex - Not sure if you still need this or not. I put this example
code together, let me know if it helps.
https://dl.dropboxusercontent.com/u/3594910/random/myapp.py

On Thu, Apr 21, 2016 at 6:59 PM, Alex Hall <ahall at autodist.com> wrote:
> All,
> Thanks for the help. It turns out that I missed something incredibly
> obvious. The problem was that, days ago, I'd added a test to my JS to make
> sure data was going from the form to the Python function. Instead of
> serializing the form, I was sending just one value. I never removed that
> test, and forgot I had it in there. I've removed it and adjusted the script,
> and am now getting a 500 error, but I think once i find the scripting
> problem that causes that I'll be in much better shape than i was. I've also
> combined two functions into one, so I can access the form object created and
> passed to the view instead of request. form. I didn't catch that I wasn't
> supposed to use request.form until someone here pointed it out.
>
> Sent from my iPhone
>
> On Apr 21, 2016, at 16:29, Anthony Ford <ford.anthonyj at gmail.com> wrote:
>
> Can you upload your full app? Or at least a demo app with your view and your
> template?
>
> Also, I think you are still confusing the form object created by WTForms
> with the request.form object, which is completely different.
>
>
> Anthony Ford,
> KF5IBN,
> ford.anthonyj at gmail.com
>
> On Thu, Apr 21, 2016 at 4:02 PM, Alex Hall <ahall at autodist.com> wrote:
>>
>> One more update: my form seems to only pass one field, no matter what. I
>> made a little loop in the function that processes the form:
>>
>>  for i, j in request.form.iteritems():
>>   print "form[{i}]={j}".format(i=i, j=j)
>>
>> This only ever prints my "orderNumber" text field, whether that field has
>> a value or not. It never prints the other text field in the form, the
>> checkbox, or either of the multiple select fields. I've been over the form
>> template, html, and class again and again, trying to spot what I did
>> differently for the orderNumber field that makes it stick when nothing else
>> does. I've even reversed the order of fields in the form, to see if it's
>> just the first field in the form that gets saved, but that didn't change
>> anything. I'm really at a loss, and I've spent hours googling this to no
>> avail. It makes no sense that the form would grab one field, but no others.
>> I can't figure out what I could possibly be doing, and no one I could find
>> has this problem. What code would it help to send to the list for you all to
>> look at? Thanks.
>>
>> On Thu, Apr 21, 2016 at 8:13 AM, Alex Hall <ahall at autodist.com> wrote:
>>>
>>> Hello all,
>>> Further to my question about multiple select fields yesterday, how does a
>>> view function access form data in general? I know I use the global(?)
>>> request object's "form" property, but beyond that I'm not sure. I can access
>>> StringField values (I'm using WTF) by using request.form.fieldID. But single
>>> select fields, multiple select fields, the status of checkboxes or radio
>>> buttons, and so on I can't work out or find online. One resource said, for
>>> checkboxes, to use request.form.getlist("checkboxID"), but that gave me an
>>> empty list despite that checkbox being checked. What am I missing? I know
>>> people usually use validators, but I need the values and statuses of
>>> elements in my form-processing view function because I'm dynamically
>>> constructing an SQL query based on the form's information.
>>>
>>> --
>>> Alex Hall
>>> Automatic Distributors, IT department
>>> ahall at autodist.com
>>
>>
>>
>>
>> --
>> Alex Hall
>> Automatic Distributors, IT department
>> ahall at autodist.com
>>
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