Hello All,
I am resending this -- seems it didn't reach the last time, sorry if it
turns up twice
------------
I've been messing around with the new MultiValueField and MultiWidget.
I don't know if the shortcoming is with me or with the implementation
of the field and widget. Let's say I want to create a field that
displays two select fields that are related, I'll use currency display
as an example. The resulting HTML should look like:
<select name="budget_0" id="id_budget">
<option value="USD">USD</option>
<option value="EU">EU</option>
</select>
<select name="budget_1" id="id_budget">
<option value="1000">1000</option>
<option value="2000">2000</option>
</select>
and returns a value like "USD 1000". The implementation I have so far
is:
# Field
class MoneyField(MultiValueField):
def __init__(self, currency=(), amount=(), required=True,
widget=None, label=None, initial=None):
fields = (ChoiceField(choices=currency),
ChoiceField(choices=amount))
super(MoneyField, self).__init__(fields, required, widget,
label, initial)
def compress(self, data_list):
if data_list:
return " ".join(i for i in data_list)
return None
# Widget
class MoneyWidget(MultiWidget):
def __init__(self, attrs=None, currency=(), amount=()):
widgets = (Select(attrs=attrs, choices=currency),
Select(attrs=attrs, choices=amount))
super(MoneyWidget, self).__init__(widgets, attrs)
def decompress(self, value):
if value:
return value.split(' ', 1)
return ['', '']
The problem is, when I use the field I have to repeat the choices for
both widget and the field, like so:
CURRENCY_CHOICES = [('USD', 'USD'), ('EU', 'EU')]
AMOUNT_CHOICES = [('1000', '1000'), ('2000', '2000')]
class MyForm(forms.Form):
budget = MoneyField(
label="Vacation budget (hotel amount only)",
currency=CURRENCY_CHOICES,
amount=AMOUNT_CHOICES,
required=False,
widget=MoneyWidget(currency=CURRENCY_CHOICES,
amount=AMOUNT_CHOICES)
)
Am I doing something wrong here are is it just a caveat with using
ChoiceField? Any guidance would be appreciated.
Cheers!
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