[Flask] Access form data in view function

[Alex Hall]

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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