On Sunday, January 22, 2017 at 2:50:16 AM UTC-8, Val K wrote:
>
> 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
>
>
But default is what I want! If I didn't want to be able to change the
value when filling out the form, I wouldn't even need to provide the field.
/dps
> 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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