I'm solving a similar problem a different way. Instead of adding a new
method to flip the tuple into a list and then back to a tuple I'm just
building my form as a list and then passing it in once I'm done
modifying it.
For example:
form_tobe = [form.Textbox('Name',
form.notnull,
),
form.Button('Submit')
]
for thing in things:
form_tobe.insert(0, form.Textbox(thing))
real_form = form.Form(*form_tobe)
I find my way more obvious but it solves a more limited range of
problems.
On May 6, 10:33 am, Aydın ŞEN <[email protected]> wrote:
> I needed to manipulate form (add new input element) after creation but
> couldn't find a way in Form class.
>
> Scenario:
>
> You have categories and put them in a form as checkbox. Here is the form:
>
> categoryForm = form.Form(
>
> > form.Textbox("header",
> > form.notnull,
> > description = "Header",
> > ),
>
> --other inputs--
>
> > )
>
> We had categories from db.
>
> categories = [["1","Python"],["2","Js"],["3","Html"]]
>
>
>
> > for id, name in categories:
> > chk = form.Checkbox('categories',
> > value = id,
> > description = net.websafe(name)
> > )
> > categoryForm.add_input(chk)
>
> Thu usage is above, i defined "add_input" function in Form.py, it takes an
> Input object and index, if index is not given the Input will be append to
> the form (as last element).
>
> Here is the add_input function:
>
> def add_input(self, input, index = None):
>
> > """appends or inserts inputs to the form, if index is given then
> > the
> > the input will be insert with the given index, if not the input
> > will
> > be append to the self.inputs tuple"""
> > self.inputs = list(self.inputs)
> > if not index and index != 0:
> > self.inputs.append(input)
> > else:
> > self.inputs.insert(index, input)
>
> > self.inputs = tuple(self.inputs)
>
> And here is the patch:
>
> *** 109,114 ****
>
>
>
>
>
> > --- 109,126 ----
> > return utils.storage([(i.name, i.get_value()) for i in
> > self.inputs])
> > d = property(_get_d)
>
> > + def add_input(self, input, index = None):
> > + """appends or inserts inputs to the form, if index is given then
> > the
> > + the input will be insert with the given index, if not the input
> > will
> > + be append to the self.inputs tuple"""
> > + self.inputs = list(self.inputs)
> > + if not index and index != 0:
> > + self.inputs.append(input)
> > + else:
> > + self.inputs.insert(index, input)
> > +
> > + self.inputs = tuple(self.inputs)
> > +
> > class Input(object):
> > def __init__(self, name, *validators, **attrs):
> > self.name = name
>
> --
> Aydın ŞEN
>
> --
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