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1 """
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2 Forms for the gcalendar application.
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3 """
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4 import datetime
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5 import pytz
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6 from django import forms
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7
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8 from gcalendar.models import Event
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9
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10
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11 TIME_CHOICES = (
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12 ('00:00', '12:00 am (00:00)'),
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13 ('00:30', '12:30 am (00:30)'),
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14 ('01:00', '1:00 am (01:00)'),
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15 ('01:30', '1:30 am (01:30)'),
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16 ('02:00', '2:00 am (02:00)'),
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17 ('02:30', '2:30 am (02:30)'),
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18 ('03:00', '3:00 am (03:00)'),
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19 ('03:30', '3:30 am (03:30)'),
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20 ('04:00', '4:00 am (04:00)'),
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21 ('04:30', '4:30 am (04:30)'),
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22 ('05:00', '5:00 am (05:00)'),
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23 ('05:30', '5:30 am (05:30)'),
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24 ('06:00', '6:00 am (06:00)'),
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25 ('06:30', '6:30 am (06:30)'),
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26 ('07:00', '7:00 am (07:00)'),
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27 ('07:30', '7:30 am (07:30)'),
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28 ('08:00', '8:00 am (08:00)'),
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29 ('08:30', '8:30 am (08:30)'),
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30 ('09:00', '9:00 am (09:00)'),
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31 ('09:30', '9:30 am (09:30)'),
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32 ('10:00', '10:00 am (10:00)'),
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33 ('10:30', '10:30 am (10:30)'),
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34 ('11:00', '11:00 am (11:00)'),
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35 ('11:30', '11:30 am (11:30)'),
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36 ('12:00', '12:00 am (12:00)'),
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37 ('12:30', '12:30 am (12:30)'),
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38 ('13:00', '1:00 pm (13:00)'),
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39 ('13:30', '1:30 pm (13:30)'),
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40 ('14:00', '2:00 pm (14:00)'),
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41 ('14:30', '2:30 pm (14:30)'),
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42 ('15:00', '3:00 pm (15:00)'),
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43 ('15:30', '3:30 pm (15:30)'),
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44 ('16:00', '4:00 pm (16:00)'),
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45 ('16:30', '4:30 pm (16:30)'),
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46 ('17:00', '5:00 pm (17:00)'),
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47 ('17:30', '5:30 pm (17:30)'),
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48 ('18:00', '6:00 pm (18:00)'),
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49 ('18:30', '6:30 pm (18:30)'),
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50 ('19:00', '7:00 pm (19:00)'),
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51 ('19:30', '7:30 pm (19:30)'),
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52 ('20:00', '8:00 pm (20:00)'),
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53 ('20:30', '8:30 pm (20:30)'),
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54 ('21:00', '9:00 pm (21:00)'),
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55 ('21:30', '9:30 pm (21:30)'),
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56 ('22:00', '10:00 pm (22:00)'),
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57 ('22:30', '10:30 pm (22:30)'),
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58 ('23:00', '11:00 pm (23:00)'),
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59 ('23:30', '11:30 pm (23:30)'),
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60 )
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61
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62
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63 class EventEntryForm(forms.ModelForm):
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64 what = forms.CharField(widget=forms.TextInput(attrs={'size': 60}))
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65 start_date = forms.DateField(widget=forms.TextInput(attrs={'size': 10}))
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66 start_time = forms.TimeField(required=False, widget=forms.Select(choices=TIME_CHOICES))
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67 end_date = forms.DateField(widget=forms.TextInput(attrs={'size': 10}))
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68 end_time = forms.TimeField(required=False, widget=forms.Select(choices=TIME_CHOICES))
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69 time_zone = forms.CharField(required=False, widget=forms.HiddenInput())
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70 where = forms.CharField(required=False, widget=forms.TextInput(attrs={'size': 60}))
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71 description = forms.CharField(required=False,
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72 widget=forms.Textarea(attrs={'class': 'markItUp smileyTarget'}))
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73
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74 DATE_FORMAT = '%m/%d/%Y' # must match the jQuery UI datepicker config
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75 TIME_FORMAT = '%H:%M'
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76 DEFAULT_START_TIME = '19:00'
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77 DEFAULT_END_TIME = '20:00'
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78
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79 class Meta:
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80 model = Event
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81 fields = ('what', 'start_date', 'start_time', 'end_date', 'end_time',
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82 'all_day', 'time_zone', 'where', 'description', 'create_forum_thread')
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83
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84 def __init__(self, *args, **kwargs):
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85 initial = kwargs.get('initial', {})
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86 instance = kwargs.get('instance', None)
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87
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88 if len(args) == 0: # no POST arguments
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89 if instance is None:
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90 init_day = datetime.date.today().strftime(self.DATE_FORMAT)
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91 if 'start_date' not in initial:
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92 initial['start_date'] = init_day
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93 if 'end_date' not in initial:
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94 initial['end_date'] = init_day
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95 if 'start_time' not in initial:
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96 initial['start_time'] = self.DEFAULT_START_TIME
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97 if 'end_time' not in initial:
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98 initial['end_time'] = self.DEFAULT_END_TIME
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99 else:
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100 initial['start_date'] = instance.start_date.strftime(self.DATE_FORMAT)
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101 initial['end_date'] = instance.end_date.strftime(self.DATE_FORMAT)
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102 if instance.all_day:
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103 initial['start_time'] = self.DEFAULT_START_TIME
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104 initial['end_time'] = self.DEFAULT_END_TIME
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105 else:
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106 if 'start_time' not in initial:
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107 initial['start_time'] = instance.start_time.strftime(self.TIME_FORMAT)
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108 if 'end_time' not in initial:
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109 initial['end_time'] = instance.end_time.strftime(self.TIME_FORMAT)
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110
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111 kwargs['initial'] = initial
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112
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113 super(EventEntryForm, self).__init__(*args, **kwargs)
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114
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115 # We don't want the user to create a forum thread on an existing event
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116 if instance is not None:
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117 del self.fields['create_forum_thread']
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118
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119 def clean(self):
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120 start_date = self.cleaned_data.get('start_date')
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121 start_time = self.cleaned_data.get('start_time')
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122 all_day = self.cleaned_data.get('all_day')
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123 end_date = self.cleaned_data.get('end_date')
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124 end_time = self.cleaned_data.get('end_time')
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125
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126 if start_date and start_time and (all_day or (end_date and end_time)):
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127 if all_day:
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128 start = start_date
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129 end = end_date
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130 else:
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131 start = datetime.datetime.combine(start_date, start_time)
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132 end = datetime.datetime.combine(end_date, end_time)
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133 if start > end:
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134 raise forms.ValidationError("The start date of the event "
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135 "is after the ending time!")
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136
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137 return self.cleaned_data
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138
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139 def clean_time_zone(self):
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140 tz = self.cleaned_data['time_zone']
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141 try:
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142 pytz.timezone(tz)
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143 except pytz.UnknownTimeZoneError:
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144 raise forms.ValidationError("Invalid timezone.")
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145 return tz
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146
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