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1 """
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2 Forms for the comments application.
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3 """
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4 import datetime
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5 from django import forms
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6 from django.conf import settings
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7 from django.contrib.contenttypes.models import ContentType
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8
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9 from comments.models import Comment
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10
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11 COMMENT_MAX_LENGTH = getattr(settings, 'COMMENT_MAX_LENGTH', 3000)
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12
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13 class CommentForm(forms.Form):
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14 comment = forms.CharField(label='',
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15 min_length=1,
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16 max_length=COMMENT_MAX_LENGTH,
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17 widget=forms.Textarea)
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18 content_type = forms.CharField(widget=forms.HiddenInput)
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19 object_pk = forms.CharField(widget=forms.HiddenInput)
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20
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21 def __init__(self, target_object, data=None, initial=None):
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22 self.target_object = target_object
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23 if initial is None:
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24 initial = {}
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25 initial.update({
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26 'content_type': str(self.target_object._meta),
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27 'object_pk': str(self.target_object.pk),
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28 })
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29 super(CommentForm, self).__init__(data=data, initial=initial)
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30
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31 def get_comment_object(self, user, ip_address):
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32 """
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33 Return a new (unsaved) comment object based on the information in this
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34 form. Assumes that the form is already validated and will throw a
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35 ValueError if not.
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36 """
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37 if not self.is_valid():
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38 raise ValueError("get_comment_object may only be called on valid forms")
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39
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40 new = Comment(
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41 content_type = ContentType.objects.get_for_model(self.target_object),
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42 object_id = self.target_object.pk,
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43 user = user,
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44 comment = self.cleaned_data["comment"],
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45 ip_address = ip_address,
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46 is_public = True,
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47 is_removed = False,
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48 )
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49
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50 # Check that this comment isn't duplicate. (Sometimes people post comments
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51 # twice by mistake.) If it is, fail silently by returning the old comment.
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52 today = datetime.date.today()
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53 possible_duplicates = Comment.objects.filter(
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54 content_type = new.content_type,
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55 object_id = new.object_id,
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56 user = new.user,
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57 creation_date__year = today.year,
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58 creation_date__month = today.month,
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59 creation_date__day = today.day,
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60 )
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61 for old in possible_duplicates:
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62 if old.comment == new.comment:
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63 return old
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64
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65 return new
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66
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67 class Media:
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68 css = {
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69 'all': settings.GPP_THIRD_PARTY_CSS['markitup'],
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70 }
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71 js = settings.GPP_THIRD_PARTY_JS['jquery'] + \
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72 settings.GPP_THIRD_PARTY_JS['markitup'] + \
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73 ('js/comments.js', )
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