add support for backlinking topiks

[django-panik-combo.git] / panikombo / models.py

diff --git a/panikombo/models.py b/panikombo/models.py
index 0f74a5b3a2132f9959b6cdc4e9963f80d5ccb388..102a5ed9799511f56916539e6996741b2a4ab21b 100644 (file)
--- a/panikombo/models.py
+++ b/panikombo/models.py
@@ -1,10 +1,17 @@
+from datetime import date
+import os
+
 from django import template
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 
+from taggit.managers import TaggableManager
+
 from combo.data.models import CellBase
 from combo.data.library import register_cell_class
 
+from emissions.models import Episode, NewsItem
+
 @register_cell_class
 class SoundCell(CellBase):
     soundfile = models.ForeignKey('emissions.SoundFile', null=True)
@@ -21,6 +28,11 @@ class SoundCell(CellBase):
         from .forms import SoundCellForm
         return SoundCellForm
 
+    def get_included_items(self):
+        if not self.soundfile:
+            return []
+        return [self.soundfile.episode]
+
     def get_additional_label(self):
         if self.soundfile:
             if self.soundfile.fragment:
@@ -49,6 +61,11 @@ class EpisodeCell(CellBase):
         context['soundfile'] = self.episode.main_sound
         return tmpl.render(context)
 
+    def get_included_items(self):
+        if not self.episode:
+            return []
+        return [self.episode]
+
     def get_default_form_class(self):
         from .forms import EpisodeCellForm
         return EpisodeCellForm
@@ -59,3 +76,102 @@ class EpisodeCell(CellBase):
                         self.episode.emission.title,
                         self.episode.title)
         return ''
+
+
+@register_cell_class
+class EpisodeAutoSelectionCell(CellBase):
+    title = models.CharField(_('Title'), max_length=50, blank=True)
+    tags = TaggableManager(_('Tags'), blank=True)
+    category = models.ForeignKey('emissions.Category', null=True, blank=True)
+
+    class Meta:
+        verbose_name = _('Automatic Episode Selection')
+
+    def get_included_items(self):
+        episodes_queryset = Episode.objects.select_related()
+        if self.category:
+            episodes_queryset = episodes_queryset.filter(emission__categories__in=[self.category.id])
+        if self.tags.count():
+            episodes_queryset = episodes_queryset.filter(tags__in=self.tags.all())
+        return episodes_queryset
+
+    def render(self, context):
+        tmpl = template.loader.get_template('panikombo/episode_auto_selection.html')
+        context['title'] = self.title
+
+        episodes_queryset = self.get_included_items()
+        episodes_queryset = episodes_queryset.extra(select={
+                        'first_diffusion': 'emissions_diffusion.datetime',
+                        },
+                        select_params=(False, True),
+                        where=['''datetime = (SELECT MIN(datetime)
+                                                FROM emissions_diffusion
+                                               WHERE episode_id = emissions_episode.id)'''],
+                        tables=['emissions_diffusion'],
+                    ).order_by('-first_diffusion').distinct()
+        context['episodes'] = episodes_queryset
+        return tmpl.render(context)
+
+    def get_default_form_class(self):
+        from .forms import EpisodeAutoSelectionCellForm
+        return EpisodeAutoSelectionCellForm
+
+    def get_additional_label(self):
+        if self.title:
+            return self.title
+        return ''
+
+@register_cell_class
+class NewsItemAutoSelectionCell(CellBase):
+    title = models.CharField(_('Title'), max_length=50, blank=True)
+    tags = TaggableManager(_('Tags'), blank=True)
+    future = models.BooleanField(_('Future Events Only'), default=True)
+
+    class Meta:
+        verbose_name = _('Automatic Newsitem Selection')
+
+    def get_included_items(self):
+        newsitems_queryset = NewsItem.objects.select_related()
+        if self.tags.count():
+            newsitems_queryset = newsitems_queryset.filter(tags__in=self.tags.all())
+        if self.future:
+            newsitems_queryset = newsitems_queryset.filter(event_date__gte=date.today())
+        return newsitems_queryset
+
+    def render(self, context):
+        tmpl = template.loader.get_template('panikombo/newsitem_auto_selection.html')
+        context['title'] = self.title
+        context['newsitems'] = self.get_included_items()
+        return tmpl.render(context)
+
+    def get_default_form_class(self):
+        from .forms import NewsItemAutoSelectionCellForm
+        return NewsItemAutoSelectionCellForm
+
+    def get_additional_label(self):
+        if self.title:
+            return self.title
+        return ''
+
+
+def get_topik_image_path(instance, filename):
+    return os.path.join('images', 'topik', instance.page.slug,
+            os.path.basename(filename))
+
+class Topik(models.Model):
+    page = models.ForeignKey('data.Page')
+    image = models.ImageField(_('Image'),
+            upload_to=get_topik_image_path, max_length=250, null=True, blank=True)
+
+    # denormalized from Focus
+    got_focus = models.DateTimeField(default=None, null=True, blank=True)
+    has_focus = models.BooleanField(default=False)
+
+
+class ItemTopik(models.Model):
+    newsitem = models.ForeignKey('emissions.NewsItem', verbose_name=_('News Item'),
+            null=True, blank=True)
+    episode = models.ForeignKey('emissions.Episode', verbose_name=_('Episode'),
+            null=True, blank=True)
+    topik = models.ForeignKey('Topik', verbose_name='Topik',
+            null=True, blank=True)