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annotate gpp/bio/forms.py @ 209:0e7c7231dea9

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Fix #75; weblinks should have an <a> tag for search engines.
author Brian Neal <bgneal@gmail.com>
date Wed, 05 May 2010 03:24:14 +0000
parents 272d3a8c98e8
children 1ba2c6bf6eb7
rev   line source
gremmie@1 1 """
gremmie@1 2 This file contains the forms used by the bio application.
gremmie@1 3 """
gremmie@1 4 from PIL import ImageFile
gremmie@1 5 from PIL import Image
gremmie@1 6
gremmie@1 7 try:
gremmie@1 8 from cStringIO import StringIO
gremmie@1 9 except:
gremmie@1 10 from StringIO import StringIO
gremmie@1 11
gremmie@1 12 from django import forms
gremmie@1 13 from django.conf import settings
gremmie@1 14 from django.core.files.base import ContentFile
gremmie@1 15 from django.contrib.auth.models import User
gremmie@1 16
gremmie@1 17 from bio.models import UserProfile
bgneal@149 18 from core.widgets import AutoCompleteUserInput
gremmie@1 19
gremmie@1 20
gremmie@1 21 class EditUserForm(forms.ModelForm):
gremmie@1 22 """Form for editing the fields of the User model."""
gremmie@1 23 email = forms.EmailField(label='Email', required=True)
gremmie@1 24 class Meta:
gremmie@1 25 model = User
gremmie@1 26 fields = ('first_name', 'last_name', 'email')
gremmie@1 27
gremmie@1 28
gremmie@1 29 class EditUserProfileForm(forms.ModelForm):
gremmie@1 30 """Form for editing the fields of the UserProfile model."""
gremmie@1 31 location = forms.CharField(required=False, widget=forms.TextInput(attrs={'size' : 64 }))
gremmie@1 32 occupation = forms.CharField(required=False, widget=forms.TextInput(attrs={'size' : 64 }))
gremmie@1 33 interests = forms.CharField(required=False, widget=forms.TextInput(attrs={'size' : 64 }))
bgneal@70 34 time_zone = forms.CharField(required=False, widget=forms.HiddenInput())
bgneal@120 35 use_24_time = forms.BooleanField(label='Show times in 24-hour mode', required=False)
bgneal@133 36 profile_text = forms.CharField(required=False,
bgneal@133 37 widget=forms.Textarea(attrs={'class': 'markItUp'}))
bgneal@133 38 signature = forms.CharField(required=False,
bgneal@133 39 widget=forms.Textarea(attrs={'class': 'markItUp'}))
gremmie@1 40
gremmie@1 41 class Meta:
gremmie@1 42 model = UserProfile
bgneal@206 43 fields = ('location', 'birthday', 'occupation', 'interests',
bgneal@206 44 'profile_text', 'hide_email', 'signature', 'time_zone',
bgneal@206 45 'use_24_time', )
gremmie@1 46
gremmie@1 47 class Media:
gremmie@1 48 css = {
bgneal@6 49 'all': settings.GPP_THIRD_PARTY_CSS['markitup'] + \
bgneal@6 50 settings.GPP_THIRD_PARTY_CSS['jquery-ui']
gremmie@1 51 }
bgneal@12 52 js = settings.GPP_THIRD_PARTY_JS['markitup'] + \
bgneal@6 53 settings.GPP_THIRD_PARTY_JS['jquery-ui'] + \
bgneal@70 54 ('js/bio.js', 'js/timezone.js')
gremmie@1 55
gremmie@1 56
gremmie@1 57 def get_image(file):
gremmie@1 58 """
gremmie@1 59 Returns a PIL Image from the supplied file.
gremmie@1 60 Throws ValidationError if the file does not parse as an image file.
gremmie@1 61 """
gremmie@1 62 parser = ImageFile.Parser()
gremmie@1 63 for chunk in file.chunks():
gremmie@1 64 parser.feed(chunk)
gremmie@1 65 try:
gremmie@1 66 image = parser.close()
gremmie@1 67 return image
gremmie@1 68 except IOError:
gremmie@1 69 pass
gremmie@1 70 raise forms.ValidationError("Upload a valid image. " +
gremmie@1 71 "The file you uploaded was either not an image or a corrupted image.")
gremmie@1 72
gremmie@1 73
gremmie@1 74 def scale_image(image, size):
gremmie@1 75 """Scales an image file if necessary."""
gremmie@1 76
gremmie@1 77 # don't upscale
gremmie@1 78 if (size, size) >= image.size:
gremmie@1 79 return image
gremmie@1 80
gremmie@1 81 (w, h) = image.size
gremmie@1 82 if w > h:
gremmie@1 83 diff = (w - h) / 2
gremmie@1 84 image = image.crop((diff, 0, w - diff, h))
gremmie@1 85 elif h > w:
gremmie@1 86 diff = (h - w) / 2
gremmie@1 87 image = image.crop((0, diff, w, h - diff))
gremmie@1 88 image = image.resize((size, size), Image.ANTIALIAS)
gremmie@1 89 return image
gremmie@1 90
gremmie@1 91
gremmie@1 92 class UploadAvatarForm(forms.Form):
gremmie@1 93 """Form used to change a user's avatar"""
gremmie@1 94 avatar_file = forms.ImageField(required=False)
gremmie@1 95 image = None
gremmie@1 96
gremmie@1 97 def clean_avatar_file(self):
gremmie@1 98 file = self.cleaned_data['avatar_file']
gremmie@1 99 if file is not None:
gremmie@1 100 if file.size > settings.MAX_AVATAR_SIZE_BYTES:
gremmie@1 101 raise forms.ValidationError("Please upload a file smaller than %s bytes." % \
gremmie@1 102 settings.MAX_AVATAR_SIZE)
gremmie@1 103 self.image = get_image(file)
gremmie@1 104 self.format = self.image.format
gremmie@1 105 return file
gremmie@1 106
gremmie@1 107 def get_file(self):
gremmie@1 108 if self.image is not None:
gremmie@1 109 self.image = scale_image(self.image, settings.MAX_AVATAR_SIZE_PIXELS)
gremmie@1 110 s = StringIO()
gremmie@1 111 self.image.save(s, self.format)
gremmie@1 112 return ContentFile(s.getvalue())
gremmie@1 113 return None
gremmie@1 114
gremmie@1 115 def get_filename(self):
gremmie@1 116 return self.cleaned_data['avatar_file'].name
gremmie@1 117
bgneal@149 118
bgneal@149 119 class SearchUsersForm(forms.Form):
bgneal@149 120 """
bgneal@149 121 A form to search for users.
bgneal@149 122 """
bgneal@149 123 username = forms.CharField(max_length=30, widget=AutoCompleteUserInput())
bgneal@149 124
bgneal@197 125 class Media:
bgneal@197 126 css = {
bgneal@197 127 'all': settings.GPP_THIRD_PARTY_CSS['jquery-ui']
bgneal@197 128 }
bgneal@197 129 js = settings.GPP_THIRD_PARTY_JS['jquery-ui']
bgneal@197 130
bgneal@149 131 def clean_username(self):
bgneal@149 132 username = self.cleaned_data['username']
bgneal@149 133 try:
bgneal@149 134 User.objects.get(username=username, is_active=True)
bgneal@149 135 except User.DoesNotExist:
bgneal@149 136 raise forms.ValidationError("That username does not exist.")
bgneal@149 137 return username