I`m trying to create form field for Django admin backend In database it
should be CharField field, contains "0" and "1" values with 24*7 length. In
admin panels I want to see them as 7 fields with 24 checkboxes each. If
checkbox is checked coressponding position of the string sets to "1", else
"0".
model.py
from django.db import modelsfrom places.widgets import *from places.fields
import *
class Place(models.Model):
…
time = HoursWorkByWeekField()
…
fields.py
from django.forms import fieldsfrom django.db import models
from places.widgets import HoursWorkByWeekWidget
class HoursWorkByWeekField(models.CharField):
widget = HoursWorkByWeekWidget
def __init__(self):
super(HoursWorkByWeekField, self).__init__(max_length=24*7,
min_length=24*7)
def to_python(self, value):
return list(value)
def get_db_prep_value(self, value):
result = []
for i in range(24*7):
if value[i] :
result += ['1']
else :
result += ['0']
return ''.join(result)
widgets.py
from django.forms import widgets
class HoursWorkByDayWidget(widgets.CheckboxSelectMultiple):
def render(self, name, attrs=None):
choices = range(0,24,1)
return widgets.CheckboxSelectMultiple.render(self, name, attrs, choices)
class HoursWorkByWeekWidget(widgets.MultiWidget):
def __init__(self, attrs=None):
widgets = (
HoursWorkByDayWidget(),
HoursWorkByDayWidget(),
HoursWorkByDayWidget(),
HoursWorkByDayWidget(),
HoursWorkByDayWidget(),
HoursWorkByDayWidget(),
HoursWorkByDayWidget(),
)
super(HoursWorkByWeekWidget, self).__init__(widgets, attrs)
When i try syncdb i have error:
TypeError: Error when calling the metaclass bases unhashable type: 'dict'
What am I doing wrong? How to organize code?
Many thanks in advance
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