Pre-populating - means just default values which will be overwritten
during form.process(), i.e. form.process() reads vars values only from
request.*post_*vars or from 'vars' arg - form.process(vars = {...} ) and
ignores pre-sets like form.vars.name=...
There was a mistake in my post: instead request.vars must be request.
*post_*vars - I fixed this
On Sunday, January 22, 2017 at 12:48:45 PM UTC+3, Dave S wrote:
>
>
>
> On Friday, January 20, 2017 at 9:23:37 AM UTC-8, Val K wrote:
>>
>> form.vars appear only after form.process() call (process() -
>> filter/convert/format/validate request.vars to form.vars)
>> you have variants :
>> 1. *before *form creation - modify field.default
>> 2. *before* form.process() - modify request.vars -
>> request.vars.PostDate=...
>> 3. pass your own set of vars - form.process(vars=myvars)
>> 4. use form.process( onvalidation=myvalidation_fun) to modify form.vars
>> *after
>> *basic validation passed but before any db actions
>>
>>
>>
>>
> But what about this passage in the book?
>
> <URL:
> http://web2py.com/books/default/chapter/29/07/forms-and-validators#Pre-populating-the-form
> >
> Pre-populating the form
>
> It is always possible to pre-populate a form using the syntax:
>
> 1
>
> form.vars.name = 'fieldvalue'
>
> Statements like the one above must be inserted after the form declaration
> and before the form is accepted, whether or not the field ("name" in the
> example) is explicitly visualized in the form.
>
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