Mercurial > public > sg101
view gpp/bio/forms.py @ 177:9b63ad1f2ad2
Fixing #59, again. Django ticket 13093 was fixed allowing cache_page to work in the URLconf.
author | Brian Neal <bgneal@gmail.com> |
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date | Mon, 15 Mar 2010 03:26:38 +0000 |
parents | ab7830b067b3 |
children | 2baadae33f2e |
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""" This file contains the forms used by the bio application. """ from PIL import ImageFile from PIL import Image try: from cStringIO import StringIO except: from StringIO import StringIO from django import forms from django.conf import settings from django.core.files.base import ContentFile from django.contrib.auth.models import User from bio.models import UserProfile from core.widgets import AutoCompleteUserInput class EditUserForm(forms.ModelForm): """Form for editing the fields of the User model.""" email = forms.EmailField(label='Email', required=True) class Meta: model = User fields = ('first_name', 'last_name', 'email') class EditUserProfileForm(forms.ModelForm): """Form for editing the fields of the UserProfile model.""" location = forms.CharField(required=False, widget=forms.TextInput(attrs={'size' : 64 })) occupation = forms.CharField(required=False, widget=forms.TextInput(attrs={'size' : 64 })) interests = forms.CharField(required=False, widget=forms.TextInput(attrs={'size' : 64 })) time_zone = forms.CharField(required=False, widget=forms.HiddenInput()) use_24_time = forms.BooleanField(label='Show times in 24-hour mode', required=False) profile_text = forms.CharField(required=False, widget=forms.Textarea(attrs={'class': 'markItUp'})) signature = forms.CharField(required=False, widget=forms.Textarea(attrs={'class': 'markItUp'})) class Meta: model = UserProfile exclude = ('user', 'avatar', 'profile_html', 'signature_html', 'forum_post_count') class Media: css = { 'all': settings.GPP_THIRD_PARTY_CSS['markitup'] + \ settings.GPP_THIRD_PARTY_CSS['jquery-ui'] } js = settings.GPP_THIRD_PARTY_JS['markitup'] + \ settings.GPP_THIRD_PARTY_JS['jquery-ui'] + \ ('js/bio.js', 'js/timezone.js') def get_image(file): """ Returns a PIL Image from the supplied file. Throws ValidationError if the file does not parse as an image file. """ parser = ImageFile.Parser() for chunk in file.chunks(): parser.feed(chunk) try: image = parser.close() return image except IOError: pass raise forms.ValidationError("Upload a valid image. " + "The file you uploaded was either not an image or a corrupted image.") def scale_image(image, size): """Scales an image file if necessary.""" # don't upscale if (size, size) >= image.size: return image (w, h) = image.size if w > h: diff = (w - h) / 2 image = image.crop((diff, 0, w - diff, h)) elif h > w: diff = (h - w) / 2 image = image.crop((0, diff, w, h - diff)) image = image.resize((size, size), Image.ANTIALIAS) return image class UploadAvatarForm(forms.Form): """Form used to change a user's avatar""" avatar_file = forms.ImageField(required=False) image = None def clean_avatar_file(self): file = self.cleaned_data['avatar_file'] if file is not None: if file.size > settings.MAX_AVATAR_SIZE_BYTES: raise forms.ValidationError("Please upload a file smaller than %s bytes." % \ settings.MAX_AVATAR_SIZE) self.image = get_image(file) self.format = self.image.format return file def get_file(self): if self.image is not None: self.image = scale_image(self.image, settings.MAX_AVATAR_SIZE_PIXELS) s = StringIO() self.image.save(s, self.format) return ContentFile(s.getvalue()) return None def get_filename(self): return self.cleaned_data['avatar_file'].name class SearchUsersForm(forms.Form): """ A form to search for users. """ username = forms.CharField(max_length=30, widget=AutoCompleteUserInput()) def clean_username(self): username = self.cleaned_data['username'] try: User.objects.get(username=username, is_active=True) except User.DoesNotExist: raise forms.ValidationError("That username does not exist.") return username