X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/0534cba3ab83d0d10e52c2c27eb6387c9763481b..dfd584e3b136d770bf56569030d10712a8722569:/apps/picture/models.py diff --git a/apps/picture/models.py b/apps/picture/models.py index dd6ae8e8b..75ea4c37d 100644 --- a/apps/picture/models.py +++ b/apps/picture/models.py @@ -1,22 +1,90 @@ -from django.db import models +# -*- coding: utf-8 -*- +# 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 django.db.models import permalink 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.utils.datastructures import SortedDict from django.template.loader import render_to_string -from django.core.cache import get_cache -from catalogue.utils import split_tags from django.utils.safestring import mark_safe -from slughifi import slughifi +from django.core.cache import caches +from catalogue.utils import split_tags +from fnpdjango.utils.text.slughifi import slughifi +from picture import tasks +from StringIO import StringIO +import jsonfield +import itertools +import logging -from django.utils.translation import ugettext_lazy as _ +from PIL import Image + +from django.utils.translation import get_language, ugettext_lazy as _ from newtagging import managers from os import path -picture_storage = FileSystemStorage(location=path.join(settings.MEDIA_ROOT, 'pictures'), base_url=settings.MEDIA_URL + "pictures/") +permanent_cache = caches['permanent'] + +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', related_name='areas') + area = jsonfield.JSONField(_('area'), default={}, editable=False) + kind = models.CharField(_('kind'), max_length=10, blank=False, + null=False, db_index=True, + choices=(('thing', _('thing')), + ('theme', _('theme')))) + + objects = models.Manager() + tagged = managers.ModelTaggedItemManager(catalogue.models.Tag) + tags = managers.TagDescriptor(catalogue.models.Tag) + tag_relations = GenericRelation(catalogue.models.Tag.intermediary_table_model) + + @classmethod + def rectangle(cls, picture, kind, coords): + pa = PictureArea() + pa.picture = picture + pa.kind = kind + pa.area = coords + return pa + + def reset_short_html(self): + if self.id is None: + return + + cache_key = "PictureArea.short_html/%d/%s" + for lang, langname in settings.LANGUAGES: + permanent_cache.delete(cache_key % (self.id, lang)) + + + def short_html(self): + if self.id: + cache_key = "PictureArea.short_html/%d/%s" % (self.id, get_language()) + short_html = permanent_cache.get(cache_key) + else: + short_html = None + + if short_html is not None: + return mark_safe(short_html) + else: + theme = self.tags.filter(category='theme') + theme = theme and theme[0] or None + thing = self.tags.filter(category='thing') + thing = thing and thing[0] or None + area = self + short_html = unicode(render_to_string( + 'picture/picturearea_short.html', locals())) + if self.id: + permanent_cache.set(cache_key, short_html) + return mark_safe(short_html) class Picture(models.Model): @@ -27,13 +95,24 @@ class Picture(models.Model): title = models.CharField(_('title'), max_length=120) slug = models.SlugField(_('slug'), max_length=120, db_index=True, unique=True) sort_key = models.CharField(_('sort key'), max_length=120, db_index=True, editable=False) + sort_key_author = models.CharField(_('sort key by author'), max_length=120, db_index=True, editable=False, default=u'') created_at = models.DateTimeField(_('creation date'), auto_now_add=True, db_index=True) changed_at = models.DateTimeField(_('creation date'), auto_now=True, db_index=True) xml_file = models.FileField('xml_file', upload_to="xml", storage=picture_storage) image_file = ImageField(_('image_file'), upload_to="images", storage=picture_storage) + html_file = models.FileField('html_file', upload_to="html", storage=picture_storage) + areas_json = jsonfield.JSONField(_('picture areas JSON'), default={}, editable=False) + extra_info = jsonfield.JSONField(_('extra information'), 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) class AlreadyExists(Exception): pass @@ -64,7 +143,7 @@ class Picture(models.Model): return ('picture.views.picture_detail', [self.slug]) @classmethod - def from_xml_file(cls, xml_file, image_file=None, overwrite=False): + 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 @@ -76,10 +155,7 @@ class Picture(models.Model): from librarian.picture import WLPicture, ImageStore close_xml_file = False close_image_file = False - # class SimpleImageStore(object): - # def path(self_, slug, mime_type): - # """Returns the image file. Ignores slug ad mime_type.""" - # return image_file + if image_file is not None and not isinstance(image_file, File): image_file = File(open(image_file)) @@ -91,46 +167,130 @@ class Picture(models.Model): try: # use librarian to parse meta-data - picture_xml = WLPicture.from_file(xml_file, - image_store=ImageStore(picture_storage.path('images'))) - # image_store=SimpleImageStore + 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) if not created and not overwrite: raise Picture.AlreadyExists('Picture %s already exists' % picture_xml.slug) - picture.title = picture_xml.picture_info.title + picture.areas.all().delete() + picture.title = unicode(picture_xml.picture_info.title) + picture.extra_info = picture_xml.picture_info.to_dict() + picture_tags = set(catalogue.models.Tag.tags_from_info(picture_xml.picture_info)) motif_tags = set() + thing_tags = set() + + area_data = {'themes':{}, 'things':{}} + for part in picture_xml.partiter(): - for motif in part['themes']: - tag, created = catalogue.models.Tag.objects.get_or_create(slug=slughifi(motif), category='theme') + 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: + objname = part['object'] + tag, created = catalogue.models.Tag.objects.get_or_create(slug=slughifi(objname), category='thing') if created: - tag.name = motif + tag.name = objname tag.sort_key = sortify(tag.name) tag.save() - motif_tags.add(tag) - - picture.tags = catalogue.models.Tag.tags_from_info(picture_xml.picture_info) + \ - list(motif_tags) + #thing_tags.add(tag) + area_data['things'][tag.slug] = { + 'object': part['object'], + 'coords': part['coords'], + } + area = PictureArea.rectangle(picture, 'thing', part['coords']) + area.save() + _tags = set() + _tags.add(tag) + area.tags = _tags + else: + _tags = set() + for motif in part['themes']: + tag, created = catalogue.models.Tag.objects.get_or_create(slug=slughifi(motif), category='theme') + if created: + tag.name = motif + tag.sort_key = sortify(tag.name) + tag.save() + #motif_tags.add(tag) + _tags.add(tag) + 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.union(motif_tags).union(thing_tags) + picture.areas_json = area_data if image_file is not None: img = image_file else: img = picture_xml.image_file() - # FIXME: hardcoded extension - picture.image_file.save(path.basename(picture_xml.image_path), File(img)) + modified = cls.crop_to_frame(picture_xml, img) + modified = cls.add_source_note(picture_xml, modified) + + picture.width, picture.height = modified.size + + modified_file = StringIO() + modified.save(modified_file, format='png', 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) + + except Exception, ex: + logging.exception("Exception during import, rolling back") + transaction.rollback() + raise ex + finally: if close_xml_file: xml_file.close() if close_image_file: image_file.close() + + transaction.commit() + return picture + @classmethod + def crop_to_frame(cls, wlpic, image_file): + img = Image.open(image_file) + if wlpic.frame is None: + 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(img.mode, (3000, 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((1000, 40), Image.ANTIALIAS), (0, img.size[1])) + return annotated + @classmethod def picture_list(cls, filter=None): """Generates a hierarchical listing of all pictures @@ -171,25 +331,54 @@ class Picture(models.Model): if self.id is None: return - cache_key = "Picture.short_html/%d" % (self.id) - get_cache('permanent').delete(cache_key) + for area in self.areas.all().iterator(): + area.reset_short_html() + + try: + author = self.tags.filter(category='author')[0].sort_key + except IndexError: + author = u'' + type(self).objects.filter(pk=self.pk).update(sort_key_author=author) + + cache_key = "Picture.short_html/%d/%s" + for lang, langname in settings.LANGUAGES: + permanent_cache.delete(cache_key % (self.id, lang)) def short_html(self): if self.id: - cache_key = "Picture.short_html/%d" % (self.id) - short_html = get_cache('permanent').get(cache_key) + cache_key = "Picture.short_html/%d/%s" % (self.id, get_language()) + short_html = permanent_cache.get(cache_key) else: short_html = None if short_html is not None: return mark_safe(short_html) else: - tags = self.tags.filter(category__in=('author', 'kind', 'epoch')) + tags = self.tags.filter(category__in=('author', 'kind', 'epoch', 'genre')) tags = split_tags(tags) - short_html = unicode(render_to_string('picture/picture_short.html', - {'picture': self, 'tags': tags})) + short_html = unicode(render_to_string( + 'picture/picture_short.html', + {'picture': self, 'tags': tags})) if self.id: - get_cache('permanent').set(cache_key, short_html) + permanent_cache.set(cache_key, short_html) return mark_safe(short_html) + + def pretty_title(self, html_links=False): + picture = self + names = [(tag.name, + catalogue.models.Tag.create_url('author', tag.slug)) + for tag in self.tags.filter(category='author')] + 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) + + # copied from book.py, figure out + def related_themes(self): + return catalogue.models.Tag.usage_for_queryset( + self.areas.all(), counts=True).filter(category__in=('theme', 'thing'))