Re: [Zope-dev] Decimal validation error.

17 Feb 2010

      Thanks Hermann,

This still does not work for me.  The pattern = '#,##0.####' seems to have
no effect on the converter. Perhaps I'm doing something wrong, I'm posting
my setup below.

This most certainly have to be a bug in the system if you can't put 1.2345
into a decimal field, no?  If so is there a bug tracker for z3c.form where I
can post this and get it fixed?

#interfaces.py
class IFixedDecimal(IDecimal):
    """Fixed decimal field."""

class FixedDecimal(schema.Decimal):
    interface.implements(
IFixedDecimal)

class ITaxLot(interface.Interface):
    """A tax lot"""

    quantity = FixedDecimal(
        title = u'Quantity',
        required = True)

#holding.py
class MyDecimalDataConverter(DecimalDataConverter):
    """Adapt decimal data converter"""
    adapts(IFixedDecimal, IWidget)

    # The amount of '#' after the '.' outlines the no. of decimal places
    pattern = '#,##0.####'

#configure.zcml

  <includeOverrides file="overrides.zcml" />

#overrides.zcml

  <adapter factory=".holding.MyDecimalDataConverter" />

On Thu, Feb 11, 2010 at 3:21 AM, Hermann Himmelbauer <dusty@qwer.tk> wrote:
...
Am Mittwoch 10 Februar 2010 17:27:09 schrieb Mats Nordgren:
...
I have an interface with a decimal field.  It validates fine for 1,2 and
3
fractions but if I enter a decimal with 4 fractions I get validation
error
"The entered value is not a valid decimal literal."
I'm using the pypi release of bluebream and z3c.form 2.3.2.
I remember that one - quite cumbersome. Try something like this:
# You should use the following interface for your forms:
class IMyDecimal(IDecimal):
   """Specify custom decimal interface"""
# Now create a custom data converter
class MyDecimalDataConverter(BaseDecimalDataConverter):
   """Adapt decimal data converter"""
   adapts(IMyDecimal, IWidget)
   # The amount of '#' after the '.' outlines the no. of decimal places
   pattern = '#,##0.####'
# And specify in overrides.zcml
 <adapter  factory="mymodule.MyDecimalDataConverter" />
This works for me.
Best Regards,
Hermann
--
hermann@qwer.tk
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