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1 """ |
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2 NL-specific Form helpers |
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3 """ |
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4 |
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5 import re |
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6 |
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7 from django.newforms import ValidationError |
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8 from django.newforms.fields import Field, Select, EMPTY_VALUES |
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9 from django.utils.translation import ugettext as _ |
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10 from django.utils.encoding import smart_unicode |
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11 |
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12 pc_re = re.compile('^\d{4}[A-Z]{2}$') |
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13 sofi_re = re.compile('^\d{9}$') |
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14 numeric_re = re.compile('^\d+$') |
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15 |
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16 class NLZipCodeField(Field): |
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17 """ |
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18 A Dutch postal code field. |
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19 """ |
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20 default_error_messages = { |
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21 'invalid': _('Enter a valid postal code'), |
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22 } |
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23 |
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24 def clean(self, value): |
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25 super(NLZipCodeField, self).clean(value) |
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26 if value in EMPTY_VALUES: |
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27 return u'' |
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28 |
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29 value = value.strip().upper().replace(' ', '') |
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30 if not pc_re.search(value): |
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31 raise ValidationError(self.error_messages['invalid']) |
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32 |
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33 if int(value[:4]) < 1000: |
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34 raise ValidationError(self.error_messages['invalid']) |
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35 |
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36 return u'%s %s' % (value[:4], value[4:]) |
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37 |
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38 class NLProvinceSelect(Select): |
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39 """ |
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40 A Select widget that uses a list of provinces of the Netherlands as its |
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41 choices. |
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42 """ |
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43 def __init__(self, attrs=None): |
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44 from nl_provinces import PROVINCE_CHOICES |
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45 super(NLProvinceSelect, self).__init__(attrs, choices=PROVINCE_CHOICES) |
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46 |
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47 class NLPhoneNumberField(Field): |
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48 """ |
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49 A Dutch telephone number field. |
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50 """ |
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51 default_error_messages = { |
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52 'invalid': _('Enter a valid phone number'), |
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53 } |
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54 |
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55 def clean(self, value): |
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56 super(NLPhoneNumberField, self).clean(value) |
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57 if value in EMPTY_VALUES: |
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58 return u'' |
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59 |
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60 phone_nr = re.sub('[\-\s\(\)]', '', smart_unicode(value)) |
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61 |
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62 if len(phone_nr) == 10 and numeric_re.search(phone_nr): |
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63 return value |
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64 |
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65 if phone_nr[:3] == '+31' and len(phone_nr) == 12 and \ |
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66 numeric_re.search(phone_nr[3:]): |
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67 return value |
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68 |
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69 raise ValidationError(self.error_messages['invalid']) |
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70 |
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71 class NLSoFiNumberField(Field): |
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72 """ |
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73 A Dutch social security number (SoFi/BSN) field. |
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74 |
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75 http://nl.wikipedia.org/wiki/Sofinummer |
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76 """ |
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77 default_error_messages = { |
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78 'invalid': _('Enter a valid SoFi number'), |
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79 } |
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80 |
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81 def clean(self, value): |
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82 super(NLSoFiNumberField, self).clean(value) |
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83 if value in EMPTY_VALUES: |
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84 return u'' |
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85 |
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86 if not sofi_re.search(value): |
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87 raise ValidationError(self.error_messages['invalid']) |
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88 |
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89 if int(value) == 0: |
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90 raise ValidationError(self.error_messages['invalid']) |
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91 |
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92 checksum = 0 |
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93 for i in range(9, 1, -1): |
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94 checksum += int(value[9-i]) * i |
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95 checksum -= int(value[-1]) |
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96 |
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97 if checksum % 11 != 0: |
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98 raise ValidationError(self.error_messages['invalid']) |
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99 |
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100 return value |