Django snippets: Widget for DateTime values on Geraldo Reports

class DateTimeObjectValue(ObjectValue):
    format = '%m/%d/%Y %H:%M'
    def get_object_value(self, instance=None):
        value = super(DateTimeObjectValue, self).get_object_value(instance)

        if not value:
            return ''

        return value.strftime(self.format)

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This is a widget for date/time fields on Geraldo Reports.

When you use Geraldo to write reports, date/time fields must be formatted using get_value lambda attribute, because ObjectValue doesn't know what mask you want to use.

With this widget, you just copy it into a common use Python file, import into your reports file and use it replacing ObjectValue on elements for fields you must be formatted as date/time format.

Example:

from geraldo import Report, ReportBand, ObjectValue, landscape
from utils.reports import DateTimeObjectValue

class ReportPhoneList(Report):
    title = u'Phone List'
    page_size = landscape(A4)

    class band_detail(ReportBand):
        height = 0.5*cm
        elements = [
            ObjectValue(attribute_name='id', top=0.1*cm),
            DateTimeObjectValue(attribute_name='birth_date',
                left=26.2*cm, top=0.1*cm, format='%m/%d/%Y'),
            ]

Author:: marinho
Posted:: April 18, 2009
Language:: Python
Django Version:: 1.0
Tags:: geraldo
Score:: 0 (after 0 ratings)

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Widget for DateTime values on Geraldo Reports

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