Support longer tag names.
[wolnelektury.git] / apps / picture / models.py
index d8783cb..ee2b4e0 100644 (file)
@@ -1,33 +1,30 @@
+# -*- 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.utils.safestring import mark_safe
-from django.core.cache import get_cache
-from catalogue.utils import split_tags, related_tag_name
-from django.utils.safestring import mark_safe
 from fnpdjango.utils.text.slughifi import slughifi
+from ssify import flush_ssi_includes
 from picture import tasks
 from StringIO import StringIO
 import jsonfield
 import itertools
 import logging
-from sorl.thumbnail import get_thumbnail, default
-from .engine import CustomCroppingEngine
 
 from PIL import Image
 
-from django.utils.translation import get_language, ugettext_lazy as _
+from django.utils.translation import ugettext_lazy as _
 from newtagging import managers
 from os import path
 
 
-permanent_cache = get_cache('permanent')
-
 picture_storage = FileSystemStorage(location=path.join(
         settings.MEDIA_ROOT, 'pictures'),
         base_url=settings.MEDIA_URL + "pictures/")
@@ -36,14 +33,17 @@ picture_storage = FileSystemStorage(location=path.join(
 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')), 
+    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)
+
+    short_html_url_name = 'picture_area_short'
 
     @classmethod
     def rectangle(cls, picture, kind, coords):
@@ -53,35 +53,18 @@ class PictureArea(models.Model):
         pa.area = coords
         return pa
 
-    def reset_short_html(self):
-        if self.id is None:
+    def flush_includes(self, languages=True):
+        if not languages:
             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)
+        if languages is True:
+            languages = [lc for (lc, _ln) in settings.LANGUAGES]
+        flush_ssi_includes([
+            template % (self.pk, lang)
+            for template in [
+                '/katalog/pa/%d/short.%s.html',
+                ]
+            for lang in languages
+            ])
 
 
 class Picture(models.Model):
@@ -89,7 +72,7 @@ class Picture(models.Model):
     Picture resource.
 
     """
-    title       = models.CharField(_('title'), max_length=120)
+    title       = models.CharField(_('title'), max_length=32767)
     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'')
@@ -103,14 +86,15 @@ class Picture(models.Model):
     culturepl_link   = models.CharField(blank=True, max_length=240)
     wiki_link     = models.CharField(blank=True, max_length=240)
 
-    _related_info = jsonfield.JSONField(blank=True, null=True, editable=False)
-
     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'
 
     class AlreadyExists(Exception):
         pass
@@ -121,15 +105,18 @@ class Picture(models.Model):
         verbose_name = _('picture')
         verbose_name_plural = _('pictures')
 
-    def save(self, force_insert=False, force_update=False, reset_short_html=True, **kwargs):
+    def save(self, force_insert=False, force_update=False, **kwargs):
         from sortify import sortify
 
-        self.sort_key = sortify(self.title)
+        self.sort_key = sortify(self.title)[:120]
 
-        ret = super(Picture, self).save(force_insert, force_update)
+        try:
+            author = self.tags.filter(category='author')[0].sort_key
+        except IndexError:
+            author = u''
+        self.sort_key_author = author
 
-        if reset_short_html:
-            self.reset_short_html()
+        ret = super(Picture, self).save(force_insert, force_update)
 
         return ret
 
@@ -162,14 +149,14 @@ class Picture(models.Model):
         if not isinstance(xml_file, File):
             xml_file = File(open(xml_file))
             close_xml_file = True
-        
+
         try:
             # 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)
+            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)
 
@@ -183,42 +170,49 @@ class Picture(models.Model):
 
             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:
-                    objname = part['object']
-                    tag, created = catalogue.models.Tag.objects.get_or_create(slug=slughifi(objname), category='thing')
-                    if created:
-                        tag.name = objname
-                        tag.sort_key = sortify(tag.name)
-                        tag.save()
-                    #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')
+                    for objname in part['object'].split(','):
+                        objname = objname.strip().capitalize()
+                        tag, created = catalogue.models.Tag.objects.get_or_create(slug=slughifi(objname), category='thing')
                         if created:
-                            tag.name = motif
+                            tag.name = objname
+                            setattr(tag, 'name_%s' % lang, tag.name)
                             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']
+                        #thing_tags.add(tag)
+                        area_data['things'][tag.slug] = {
+                            'object': objname,
+                            'coords': part['coords'],
                             }
 
+                        _tags.add(tag)
+                    area = PictureArea.rectangle(picture, 'thing', part['coords'])
+                    area.save()
+                    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=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()
@@ -238,7 +232,7 @@ class Picture(models.Model):
             picture.width, picture.height = modified.size
 
             modified_file = StringIO()
-            modified.save(modified_file, format='png', quality=95)
+            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))
 
@@ -264,7 +258,7 @@ class Picture(models.Model):
     @classmethod
     def crop_to_frame(cls, wlpic, image_file):
         img = Image.open(image_file)
-        if wlpic.frame is None:
+        if wlpic.frame is None or wlpic.frame == [[0, 0], [-1, -1]]:
             return img
         img = img.crop(itertools.chain(*wlpic.frame))
         return img
@@ -274,19 +268,19 @@ class Picture(models.Model):
         from PIL import ImageDraw, ImageFont
         from librarian import get_resource
 
-        annotated = Image.new(img.mode, 
-                (img.size[0], img.size[1] + 40), 
+        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))
+        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((1000, 40), Image.ANTIALIAS), (0, img.size[1]))
+        annotated.paste(annotation.resize((img.size[0], 40), Image.ANTIALIAS), (0, img.size[1]))
         return annotated
 
     @classmethod
@@ -325,50 +319,9 @@ class Picture(models.Model):
             self._info = info
         return self._info
 
-    def reset_short_html(self):
-        if self.id is None:
-            return
-        
-        type(self).objects.filter(pk=self.pk).update(_related_info=None)
-        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/%s" % (self.id, get_language())
-            short_html = get_cache('permanent').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', 'genre'))
-            tags = split_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)
-            return mark_safe(short_html)
-
     def pretty_title(self, html_links=False):
         picture = self
-        # TODO Add translations (related_tag_info)
-        names = [(tag.name,
-                  catalogue.models.Tag.create_url('author', tag.slug))
+        names = [(tag.name, tag.get_absolute_url())
                  for tag in self.tags.filter(category='author')]
         names.append((self.title, self.get_absolute_url()))
 
@@ -378,89 +331,20 @@ class Picture(models.Model):
             names = [tag[0] for tag in names]
         return ', '.join(names)
 
-    def related_info(self):
-        """Keeps info about related objects (tags) in cache field."""
-        if self._related_info is not None:
-            return self._related_info
-        else:
-            rel = {'tags': {}}
-
-            tags = self.tags.filter(category__in=(
-                    'author', 'kind', 'genre', 'epoch'))
-            tags = split_tags(tags)
-            for category in tags:
-                cat = []
-                for tag in tags[category]:
-                    tag_info = {'slug': tag.slug, 'name': tag.name}
-                    for lc, ln in settings.LANGUAGES:
-                        tag_name = getattr(tag, "name_%s" % lc)
-                        if tag_name:
-                            tag_info["name_%s" % lc] = tag_name
-                    cat.append(tag_info)
-                rel['tags'][category] = cat
-            
-
-            if self.pk:
-                type(self).objects.filter(pk=self.pk).update(_related_info=rel)
-            return rel
-
-    # copied from book.py, figure out 
     def related_themes(self):
-        # self.theme_counter hides a computation, so a line below actually makes sense
-        theme_counter = self.theme_counter
-        picture_themes = list(catalogue.models.Tag.objects.filter(pk__in=theme_counter.keys()))
-        for tag in picture_themes:
-            tag.count = theme_counter[tag.pk]
-        return picture_themes
-
-    def reset_tag_counter(self):
-        if self.id is None:
-            return
-
-        cache_key = "Picture.tag_counter/%d" % self.id
-        permanent_cache.delete(cache_key)
-        if self.parent:
-            self.parent.reset_tag_counter()
-
-    @property
-    def tag_counter(self):
-        if self.id:
-            cache_key = "Picture.tag_counter/%d" % self.id
-            tags = permanent_cache.get(cache_key)
-        else:
-            tags = None
-
-        if tags is None:
-            tags = {}
-            # do we need to do this? there are no children here.
-            for tag in self.tags.exclude(category__in=('book', 'theme', 'thing', 'set')).order_by().iterator():
-                tags[tag.pk] = 1
+        return catalogue.models.Tag.objects.usage_for_queryset(
+            self.areas.all(), counts=True).filter(category__in=('theme', 'thing'))
 
-            if self.id:
-                permanent_cache.set(cache_key, tags)
-        return tags
-
-    def reset_theme_counter(self):
-        if self.id is None:
+    def flush_includes(self, languages=True):
+        if not languages:
             return
-
-        cache_key = "Picture.theme_counter/%d" % self.id
-        permanent_cache.delete(cache_key)
-
-    @property
-    def theme_counter(self):
-        if self.id:
-            cache_key = "Picture.theme_counter/%d" % self.id
-            tags = permanent_cache.get(cache_key)
-        else:
-            tags = None
-
-        if tags is None:
-            tags = {}
-            for area in PictureArea.objects.filter(picture=self).order_by().iterator():
-                for tag in area.tags.filter(category__in=('theme','thing')).order_by().iterator():
-                    tags[tag.pk] = tags.get(tag.pk, 0) + 1
-
-            if self.id:
-                permanent_cache.set(cache_key, tags)
-        return tags
+        if languages is True:
+            languages = [lc for (lc, _ln) in settings.LANGUAGES]
+        flush_ssi_includes([
+            template % (self.pk, lang)
+            for template in [
+                '/katalog/p/%d/short.%s.html',
+                '/katalog/p/%d/mini.%s.html',
+                ]
+            for lang in languages
+            ])