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107 lines
3.9 KiB
Python
107 lines
3.9 KiB
Python
from django.db import models
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from django.conf import settings
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from django.core.urlresolvers import reverse
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from django.utils.translation import ugettext_lazy as _
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from django.core.files.base import ContentFile
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from PIL import Image
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from io import BytesIO
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from core.models import SithFile, User
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from core.utils import resize_image, exif_auto_rotate
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class Picture(SithFile):
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class Meta:
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proxy = True
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@property
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def is_in_sas(self):
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sas = SithFile.objects.filter(id=settings.SITH_SAS_ROOT_DIR_ID).first()
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return sas in self.get_parent_list()
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@property
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def is_vertical(self):
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im = Image.open(BytesIO(self.file.read()))
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(w, h) = im.size
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return (w / h) < 1
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def can_be_edited_by(self, user):
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return user.is_in_group(settings.SITH_SAS_ADMIN_GROUP_ID)
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def can_be_viewed_by(self, user):
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return self.can_be_edited_by(user) or (self.is_in_sas and self.is_moderated and
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user.is_in_group(settings.SITH_MAIN_MEMBERS_GROUP))
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def get_download_url(self):
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return reverse('sas:download', kwargs={'picture_id': self.id})
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def get_download_compressed_url(self):
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return reverse('sas:download_compressed', kwargs={'picture_id': self.id})
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def get_download_thumb_url(self):
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return reverse('sas:download_thumb', kwargs={'picture_id': self.id})
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def generate_thumbnails(self):
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im = Image.open(BytesIO(self.file.read()))
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try:
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im = exif_auto_rotate(im)
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except: pass
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file = resize_image(im, max(im.size), self.mime_type.split('/')[-1])
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thumb = resize_image(im, 200, self.mime_type.split('/')[-1])
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compressed = resize_image(im, 600, self.mime_type.split('/')[-1])
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self.file = file
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self.file.name = self.name
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self.thumbnail = thumb
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self.thumbnail.name = self.name
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self.compressed = compressed
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self.compressed.name = self.name
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self.save()
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def rotate(self, degree):
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for attr in ['file', 'compressed', 'thumbnail']:
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if self.__getattribute__(attr):
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im = Image.open(BytesIO(self.__getattribute__(attr).read()))
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new_image = BytesIO()
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im = im.rotate(degree, expand=True)
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im.save(fp=new_image, format=self.mime_type.split('/')[-1].upper(), quality=90, optimize=True, progressive=True)
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self.__getattribute__(attr).save(self.name, ContentFile(new_image.getvalue()))
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self.save()
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def get_next(self):
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return self.parent.children.filter(is_moderated=True, asked_for_removal=False, is_folder=False,
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id__gt=self.id).order_by('id').first()
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def get_previous(self):
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return self.parent.children.filter(is_moderated=True, asked_for_removal=False, is_folder=False,
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id__lt=self.id).order_by('id').last()
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class Album(SithFile):
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class Meta:
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proxy = True
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@property
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def is_in_sas(self):
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sas = SithFile.objects.filter(id=settings.SITH_SAS_ROOT_DIR_ID).first()
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return sas in self.get_parent_list()
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def can_be_edited_by(self, user):
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return user.is_in_group(settings.SITH_SAS_ADMIN_GROUP_ID)
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def can_be_viewed_by(self, user):
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return self.can_be_edited_by(user) or (self.is_in_sas and self.is_moderated and
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user.is_in_group(settings.SITH_MAIN_MEMBERS_GROUP))
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def get_absolute_url(self):
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return reverse('sas:album', kwargs={'album_id': self.id})
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class PeoplePictureRelation(models.Model):
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"""
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The PeoplePictureRelation class makes the connection between User and Picture
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"""
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user = models.ForeignKey(User, verbose_name=_('user'), related_name="pictures", null=False, blank=False)
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picture = models.ForeignKey(Picture, verbose_name=_('picture'), related_name="people", null=False, blank=False)
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class Meta:
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unique_together = ['user', 'picture']
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