63 lines
2.2 KiB
Python
63 lines
2.2 KiB
Python
from django import forms
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from django.core import exceptions, validators
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from django.utils.translation import ugettext_lazy as _
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import six
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from files_widget.conf import *
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class UnicodeWithAttr(six.text_type):
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deleted_files = None
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moved_files = None
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class FilesFormField(forms.MultiValueField):
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def __init__(self, max_length=None, **kwargs):
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super(FilesFormField, self).__init__(**kwargs)
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def compress(self, data_list):
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files = UnicodeWithAttr(data_list[0])
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files.deleted_files = data_list[1]
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files.moved_files = data_list[2]
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return files
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def clean(self, value):
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"""
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This is a copy of MultiValueField.clean() with a BUGFIX:
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- if self.required and field_value in validators.EMPTY_VALUES:
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+ if field.required and field_value in validators.EMPTY_VALUES:
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"""
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from django.forms.utils import ErrorList
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from django.core.exceptions import ValidationError
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clean_data = []
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errors = ErrorList()
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if not value or isinstance(value, (list, tuple)):
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if not value or not [v for v in value if v not in validators.EMPTY_VALUES]:
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if self.required:
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raise ValidationError(self.error_messages['required'])
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else:
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return self.compress(value)
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else:
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raise ValidationError(self.error_messages['invalid'])
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for i, field in enumerate(self.fields):
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try:
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field_value = value[i]
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except IndexError:
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field_value = None
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if field.required and field_value in validators.EMPTY_VALUES:
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raise ValidationError(self.error_messages['required'])
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try:
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clean_data.append(field.clean(field_value))
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except ValidationError as e:
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# Collect all validation errors in a single list, which we'll
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# raise at the end of clean(), rather than raising a single
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# exception for the first error we encounter.
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errors.extend(e.messages)
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if errors:
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raise ValidationError(errors)
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out = self.compress(clean_data)
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self.validate(out)
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self.run_validators(out)
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return out
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