77 lines
2.3 KiB
Python
77 lines
2.3 KiB
Python
from django.db import models
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from django import forms
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#class IdWidget(AdminMultipleChoiceFieldWidget):
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class IdWidget(forms.widgets.CheckboxSelectMultiple):
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template_name = 'equipment/widgets/checkbox_select.html'
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option_template_name = 'equipment/widgets/checkbox_option.html'
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def __init__(self, *args, **kwargs):
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# nb_items = kwargs.pop('nb_items')
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# kwargs['choices'] = list(range(1, nb_items+1))
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super(IdWidget, self).__init__(*args, **kwargs)
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class Media:
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css = {
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'all': ('css/idwidget.css',)
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}
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class IdFormField(forms.MultipleChoiceField):
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#widget = IdWidget
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def __init__(self, *args, **kwargs):
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if 'min_value' in kwargs:
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kwargs.pop('min_value')
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if 'max_value' in kwargs:
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kwargs.pop('max_value')
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super(IdFormField, self).__init__(*args, **kwargs)
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class IdField(models.BigIntegerField):
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def parse_integer(self, n):
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res = []
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k = 1
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while(n > 0):
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if n & 1:
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res.append(k)
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n >>= 1
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k += 1
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return res
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def from_db_value(self, value, expression, connection):
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if value is None:
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return value
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return self.parse_integer(value)
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def to_python(self, value):
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if isinstance(value, list):
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return value
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if value is None:
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return value
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return self.parse_integer(value)
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def get_prep_value(self, value):
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res = 0
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for b in value:
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res |= 1 << (int(b)-1)
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return res
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def __init__(self, separator=",", *args, **kwargs):
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self.separator = separator
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super(IdField, self).__init__(*args, **kwargs)
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self.validators = [] # TODO : validateurs pertinents
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def deconstruct(self):
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name, path, args, kwargs = super(IdField, self).deconstruct()
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# Only include kwarg if it's not the default
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if self.separator != ",":
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kwargs['separator'] = self.separator
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return name, path, args, kwargs
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def formfield(self, **kwargs):
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# This is a fairly standard way to set up some defaults
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# while letting the caller override them.
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defaults = {'form_class': IdFormField}
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defaults.update(kwargs)
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return super(IdField, self).formfield(**defaults)
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