X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/6407cf24cd6cf3f9ea6fdf4a8924dad109a590e6..HEAD:/src/picture/models.py?ds=sidebyside diff --git a/src/picture/models.py b/src/picture/models.py deleted file mode 100644 index 5b523d224..000000000 --- a/src/picture/models.py +++ /dev/null @@ -1,358 +0,0 @@ -# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later. -# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. -# -from django.db import models, transaction -import catalogue.models -from sorl.thumbnail import ImageField -from django.conf import settings -from django.contrib.contenttypes.fields import GenericRelation -from django.core.files.storage import FileSystemStorage -from django.urls import reverse -from slugify import slugify - -from catalogue.models.tag import prefetched_relations -from catalogue.utils import split_tags -from picture import tasks -from wolnelektury.utils import cached_render, clear_cached_renders -from io import BytesIO -import itertools -import json -import logging -import re - -from PIL import Image - -from newtagging import managers -from os import path - - -picture_storage = FileSystemStorage(location=path.join( - settings.MEDIA_ROOT, 'pictures'), - base_url=settings.MEDIA_URL + "pictures/") - - -class PictureArea(models.Model): - picture = models.ForeignKey('picture.Picture', models.CASCADE, related_name='areas') - area = models.TextField('obszar', default='{}', editable=False) - kind = models.CharField( - 'typ', max_length=10, blank=False, null=False, db_index=True, - choices=(('thing', 'przedmiot'), ('theme', 'motyw')) - ) - - objects = models.Manager() - tagged = managers.ModelTaggedItemManager(catalogue.models.Tag) - tags = managers.TagDescriptor(catalogue.models.Tag) - tag_relations = GenericRelation(catalogue.models.Tag.intermediary_table_model) - - short_html_url_name = 'picture_area_short' - - @classmethod - def rectangle(cls, picture, kind, coords): - pa = PictureArea() - pa.picture = picture - pa.kind = kind - pa.area = json.dumps(coords) - return pa - - def get_area_json(self): - return json.loads(self.area) - - -class Picture(models.Model): - """ - Picture resource. - - """ - title = models.CharField('tytuł', max_length=32767) - slug = models.SlugField('slug', max_length=120, db_index=True, unique=True) - sort_key = models.CharField('klucz sortowania', max_length=120, db_index=True, editable=False) - sort_key_author = models.CharField( - 'klucz sortowania wg autora', max_length=120, db_index=True, editable=False, default='') - created_at = models.DateTimeField('data utworzenia', auto_now_add=True, db_index=True) - changed_at = models.DateTimeField('data zmiany', auto_now=True, db_index=True) - xml_file = models.FileField('plik xml', upload_to="xml", storage=picture_storage) - image_file = ImageField('plik obrazu', upload_to="images", storage=picture_storage) - html_file = models.FileField('plik html', upload_to="html", storage=picture_storage) - areas_json = models.TextField('obszary w JSON', default='{}', editable=False) - extra_info = models.TextField('dodatkowa informacja', default='{}') - culturepl_link = models.CharField(blank=True, max_length=240) - wiki_link = models.CharField(blank=True, max_length=240) - - width = models.IntegerField(null=True) - height = models.IntegerField(null=True) - - objects = models.Manager() - tagged = managers.ModelTaggedItemManager(catalogue.models.Tag) - tags = managers.TagDescriptor(catalogue.models.Tag) - tag_relations = GenericRelation(catalogue.models.Tag.intermediary_table_model) - - short_html_url_name = 'picture_short' - - is_picture = True - - class AlreadyExists(Exception): - pass - - class Meta: - ordering = ('sort_key_author', 'sort_key') - - verbose_name = 'obraz' - verbose_name_plural = 'obrazy' - - def get_extra_info_json(self): - return json.loads(self.extra_info or '{}') - - def save(self, force_insert=False, force_update=False, **kwargs): - from sortify import sortify - - self.sort_key = sortify(self.title)[:120] - - try: - author = self.authors().first().sort_key - except AttributeError: - author = '' - self.sort_key_author = author - - ret = super(Picture, self).save(force_insert, force_update) - - return ret - - def __str__(self): - return self.title - - def authors(self): - return self.tags.filter(category='author') - - def epochs(self): - return self.tags.filter(category='epoch') - - def genres(self): - return self.tags.filter(category='genre') - - def kinds(self): - return self.tags.filter(category='kind') - - def tag_unicode(self, category): - relations = prefetched_relations(self, category) - if relations: - return ', '.join(rel.tag.name for rel in relations) - else: - return ', '.join(self.tags.filter(category=category).values_list('name', flat=True)) - - def author_unicode(self): - return self.tag_unicode('author') - - def tags_by_category(self): - return split_tags(self.tags) - - def get_absolute_url(self): - return reverse('picture_detail', args=[self.slug]) - - def get_initial(self): - try: - return re.search(r'\w', self.title, re.U).group(0) - except AttributeError: - return '' - - def get_next(self): - try: - return type(self).objects.filter(sort_key__gt=self.sort_key)[0] - except IndexError: - return None - - def get_previous(self): - try: - return type(self).objects.filter(sort_key__lt=self.sort_key).order_by('-sort_key')[0] - except IndexError: - return None - - @classmethod - def from_xml_file(cls, xml_file, image_file=None, image_store=None, overwrite=False): - """ - Import xml and it's accompanying image file. - If image file is missing, it will be fetched by librarian.picture.ImageStore - which looks for an image file in the same directory the xml is, with extension matching - its mime type. - """ - from sortify import sortify - from django.core.files import File - from librarian.picture import WLPicture, ImageStore - close_xml_file = False - close_image_file = False - - if image_file is not None and not isinstance(image_file, File): - image_file = File(open(image_file, 'rb')) - close_image_file = True - - if not isinstance(xml_file, File): - xml_file = File(open(xml_file)) - close_xml_file = True - - with transaction.atomic(): - # use librarian to parse meta-data - if image_store is None: - image_store = ImageStore(picture_storage.path('images')) - picture_xml = WLPicture.from_file(xml_file, image_store=image_store) - - picture, created = Picture.objects.get_or_create(slug=picture_xml.slug[:120]) - if not created and not overwrite: - raise Picture.AlreadyExists('Picture %s already exists' % picture_xml.slug) - - picture.areas.all().delete() - picture.title = str(picture_xml.picture_info.title) - picture.extra_info = json.dumps(picture_xml.picture_info.to_dict()) - - picture_tags = set(catalogue.models.Tag.tags_from_info(picture_xml.picture_info)) - for tag in picture_tags: - if not tag.for_pictures: - tag.for_pictures = True - tag.save() - - area_data = {'themes': {}, 'things': {}} - - # Treat all names in picture XML as in default language. - lang = settings.LANGUAGE_CODE - - for part in picture_xml.partiter(): - if picture_xml.frame: - c = picture_xml.frame[0] - part['coords'] = [[p[0] - c[0], p[1] - c[1]] for p in part['coords']] - if part.get('object', None) is not None: - _tags = set() - for objname in part['object'].split(','): - objname = objname.strip() - assert objname, 'Empty object name' - # str.capitalize() is wrong, because it also lowers letters - objname = objname[0].upper() + objname[1:] - tag, created = catalogue.models.Tag.objects.get_or_create( - slug=slugify(objname), category='thing') - if created: - tag.name = objname - setattr(tag, 'name_%s' % lang, tag.name) - tag.sort_key = sortify(tag.name) - tag.for_pictures = True - tag.save() - area_data['things'][tag.slug] = { - 'object': objname, - 'coords': part['coords'], - } - - _tags.add(tag) - if not tag.for_pictures: - tag.for_pictures = True - tag.save() - area = PictureArea.rectangle(picture, 'thing', part['coords']) - area.save() - # WTF thing area does not inherit tags from picture and theme area does, is it intentional? - area.tags = _tags - else: - _tags = set() - for motifs in part['themes']: - for motif in motifs.split(','): - tag, created = catalogue.models.Tag.objects.get_or_create( - slug=slugify(motif), category='theme') - if created: - tag.name = motif - tag.sort_key = sortify(tag.name) - tag.for_pictures = True - tag.save() - # motif_tags.add(tag) - _tags.add(tag) - if not tag.for_pictures: - tag.for_pictures = True - tag.save() - area_data['themes'][tag.slug] = { - 'theme': motif, - 'coords': part['coords'] - } - - logging.debug("coords for theme: %s" % part['coords']) - area = PictureArea.rectangle(picture, 'theme', part['coords']) - area.save() - area.tags = _tags.union(picture_tags) - - picture.tags = picture_tags - picture.areas_json = json.dumps(area_data) - - if image_file is not None: - img = image_file - else: - img = picture_xml.image_file() - - modified = cls.crop_to_frame(picture_xml, img) - modified = cls.add_source_note(picture_xml, modified) - - picture.width, picture.height = modified.size - - modified_file = BytesIO() - modified.save(modified_file, format='JPEG', quality=95) - # FIXME: hardcoded extension - detect from DC format or orginal filename - picture.image_file.save(path.basename(picture_xml.image_path), File(modified_file)) - - picture.xml_file.save("%s.xml" % picture.slug, File(xml_file)) - picture.save() - tasks.generate_picture_html(picture.id) - - if close_xml_file: - xml_file.close() - if close_image_file: - image_file.close() - - return picture - - @classmethod - def crop_to_frame(cls, wlpic, image_file): - img = Image.open(image_file) - if wlpic.frame is None or wlpic.frame == [[0, 0], [-1, -1]]: - return img - img = img.crop(itertools.chain(*wlpic.frame)) - return img - - @staticmethod - def add_source_note(wlpic, img): - from PIL import ImageDraw, ImageFont - from librarian import get_resource - - annotated = Image.new(img.mode, (img.size[0], img.size[1] + 40), (255, 255, 255)) - annotated.paste(img, (0, 0)) - annotation = Image.new('RGB', (img.size[0] * 3, 120), (255, 255, 255)) - ImageDraw.Draw(annotation).text( - (30, 15), - wlpic.picture_info.source_name, - (0, 0, 0), - font=ImageFont.truetype(get_resource("fonts/DejaVuSerif.ttf"), 75) - ) - annotated.paste(annotation.resize((img.size[0], 40), Image.ANTIALIAS), (0, img.size[1])) - return annotated - - @property - def info(self): - if not hasattr(self, '_info'): - from librarian import dcparser - from librarian import picture - info = dcparser.parse(self.xml_file.path, picture.PictureInfo) - self._info = info - return self._info - - def pretty_title(self, html_links=False): - names = [(tag.name, tag.get_absolute_url()) for tag in self.authors().only('name', 'category', 'slug')] - names.append((self.title, self.get_absolute_url())) - - if html_links: - names = ['%s' % (tag[1], tag[0]) for tag in names] - else: - names = [tag[0] for tag in names] - return ', '.join(names) - - @cached_render('picture/picture_mini_box.html') - def mini_box(self): - return { - 'picture': self, - } - - def related_themes(self): - return catalogue.models.Tag.objects.usage_for_queryset( - self.areas.all(), counts=True).filter(category__in=('theme', 'thing')) - - def clear_cache(self): - clear_cached_renders(self.mini_box)