author | Lennard de Rijk <ljvderijk@gmail.com> |
Tue, 07 Apr 2009 22:20:23 +0000 | |
changeset 2125 | c24e8423cd1a |
parent 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
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""" |
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Swiss-specific Form helpers |
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""" |
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from django.forms import ValidationError |
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from django.forms.fields import Field, RegexField, Select, EMPTY_VALUES |
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from django.utils.encoding import smart_unicode |
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from django.utils.translation import ugettext_lazy as _ |
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import re |
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|
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id_re = re.compile(r"^(?P<idnumber>\w{8})(?P<pos9>(\d{1}|<))(?P<checksum>\d{1})$") |
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phone_digits_re = re.compile(r'^0([1-9]{1})\d{8}$') |
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|
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class CHZipCodeField(RegexField): |
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default_error_messages = { |
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'invalid': _('Enter a zip code in the format XXXX.'), |
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} |
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|
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def __init__(self, *args, **kwargs): |
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super(CHZipCodeField, self).__init__(r'^\d{4}$', |
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max_length=None, min_length=None, *args, **kwargs) |
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|
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class CHPhoneNumberField(Field): |
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""" |
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Validate local Swiss phone number (not international ones) |
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The correct format is '0XX XXX XX XX'. |
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'0XX.XXX.XX.XX' and '0XXXXXXXXX' validate but are corrected to |
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'0XX XXX XX XX'. |
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""" |
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default_error_messages = { |
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'invalid': 'Phone numbers must be in 0XX XXX XX XX format.', |
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} |
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|
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def clean(self, value): |
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super(CHPhoneNumberField, self).clean(value) |
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if value in EMPTY_VALUES: |
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return u'' |
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value = re.sub('(\.|\s|/|-)', '', smart_unicode(value)) |
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m = phone_digits_re.search(value) |
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if m: |
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return u'%s %s %s %s' % (value[0:3], value[3:6], value[6:8], value[8:10]) |
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raise ValidationError(self.error_messages['invalid']) |
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|
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class CHStateSelect(Select): |
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""" |
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A Select widget that uses a list of CH states as its choices. |
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""" |
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def __init__(self, attrs=None): |
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from ch_states import STATE_CHOICES # relative import |
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super(CHStateSelect, self).__init__(attrs, choices=STATE_CHOICES) |
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|
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class CHIdentityCardNumberField(Field): |
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""" |
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A Swiss identity card number. |
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|
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Checks the following rules to determine whether the number is valid: |
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|
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* Conforms to the X1234567<0 or 1234567890 format. |
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* Included checksums match calculated checksums |
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Algorithm is documented at http://adi.kousz.ch/artikel/IDCHE.htm |
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""" |
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default_error_messages = { |
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'invalid': _('Enter a valid Swiss identity or passport card number in X1234567<0 or 1234567890 format.'), |
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} |
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def has_valid_checksum(self, number): |
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given_number, given_checksum = number[:-1], number[-1] |
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new_number = given_number |
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calculated_checksum = 0 |
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fragment = "" |
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parameter = 7 |
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|
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first = str(number[:1]) |
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if first.isalpha(): |
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num = ord(first.upper()) - 65 |
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if num < 0 or num > 8: |
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return False |
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new_number = str(num) + new_number[1:] |
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new_number = new_number[:8] + '0' |
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|
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if not new_number.isdigit(): |
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return False |
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|
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for i in range(len(new_number)): |
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fragment = int(new_number[i])*parameter |
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calculated_checksum += fragment |
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|
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if parameter == 1: |
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parameter = 7 |
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elif parameter == 3: |
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parameter = 1 |
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elif parameter ==7: |
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parameter = 3 |
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return str(calculated_checksum)[-1] == given_checksum |
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def clean(self, value): |
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super(CHIdentityCardNumberField, self).clean(value) |
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if value in EMPTY_VALUES: |
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return u'' |
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|
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match = re.match(id_re, value) |
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if not match: |
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raise ValidationError(self.error_messages['invalid']) |
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idnumber, pos9, checksum = match.groupdict()['idnumber'], match.groupdict()['pos9'], match.groupdict()['checksum'] |
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|
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if idnumber == '00000000' or \ |
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idnumber == 'A0000000': |
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raise ValidationError(self.error_messages['invalid']) |
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all_digits = "%s%s%s" % (idnumber, pos9, checksum) |
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if not self.has_valid_checksum(all_digits): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
115 |
raise ValidationError(self.error_messages['invalid']) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
116 |
|
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
117 |
return u'%s%s%s' % (idnumber, pos9, checksum) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
118 |