After further consideration, I think that, although the "trick":
db.table1.field1.readable=db.table1.field1.writable=False
does work by adding it to the controller so that it only applies to
the current form, in practice this isn't practical in my case. For
instance, I need to use the fields in the form to write a value to
field1, which I think the above statement would make impossible. Also,
if the table1 has many fields and the form only populates one of the
fields, then this approach makes for some pretty ugly controller code.
Given the high degree of control I need over the form, I think the
right way to do this is to use the SQLFORM.factory in the controller
and custom form code within the view. Something like this:
# Controller:
form = SQLFORM.factory(
Field('text','string',requires=IS_NOT_NULL()),
db.table1,
db.table2,
)
# View:
{{=form.custom.begin}}
{{=TABLE(TR(TH(T('Enter field 1')),TD(form.custom.widget.text)),
TR(TH(form.custom.labels['xyz']),TD
(form.custom.widget.table1.xyz)))}}
{{=form.custom.submit}}
{{=form.custom.end}}
I'm trying to get this to work, but the form.custom.labels['xyz']
keeps on throwing an error:
AttributeError: 'NoneType' object has no attribute 'xyz'
where table1 is defined with Field('xyz','string',label=T('Option
List:'),requires=IS_IN_SET(['a','b','c']))
Anybody have any idea why this isn't working?
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