contrib/penfield/models.py

   1 from django.db import models
   2 from django.conf import settings
   3 from philo.models import Tag, Titled, Entity, MultiView, Page, register_value_model, TemplateField
   4 from philo.exceptions import ViewCanNotProvideSubpath
   5 from django.conf.urls.defaults import url, patterns, include
   6 from django.http import Http404
   7 from datetime import date, datetime
   8 from philo.utils import paginate
   9 from philo.contrib.penfield.validators import validate_pagination_count
  10 from django.utils.feedgenerator import Atom1Feed, Rss201rev2Feed
  11 from philo.contrib.penfield.utils import FeedMultiViewMixin
  12
  13
  14 class Blog(Entity, Titled):
  15         @property
  16         def entry_tags(self):
  17                 """ Returns a QuerySet of Tags that are used on any entries in this blog. """
  18                 return Tag.objects.filter(blogentries__blog=self).distinct()
  19
  20         @property
  21         def entry_dates(self):
  22                 dates = {'year': self.entries.dates('date', 'year', order='DESC'), 'month': self.entries.dates('date', 'month', order='DESC'), 'day': self.entries.dates('date', 'day', order='DESC')}
  23                 return dates
  24
  25
  26 register_value_model(Blog)
  27
  28
  29 class BlogEntry(Entity, Titled):
  30         blog = models.ForeignKey(Blog, related_name='entries', blank=True, null=True)
  31         author = models.ForeignKey(getattr(settings, 'PHILO_PERSON_MODULE', 'auth.User'), related_name='blogentries')
  32         date = models.DateTimeField(default=datetime.now)
  33         content = models.TextField()
  34         excerpt = models.TextField(blank=True, null=True)
  35         tags = models.ManyToManyField(Tag, related_name='blogentries', blank=True, null=True)
  36
  37         class Meta:
  38                 ordering = ['-date']
  39                 verbose_name_plural = "blog entries"
  40                 get_latest_by = "date"
  41
  42
  43 register_value_model(BlogEntry)
  44
  45
  46 class BlogView(MultiView, FeedMultiViewMixin):
  47         ENTRY_PERMALINK_STYLE_CHOICES = (
  48                 ('D', 'Year, month, and day'),
  49                 ('M', 'Year and month'),
  50                 ('Y', 'Year'),
  51                 ('B', 'Custom base'),
  52                 ('N', 'No base')
  53         )
  54
  55         blog = models.ForeignKey(Blog, related_name='blogviews')
  56
  57         index_page = models.ForeignKey(Page, related_name='blog_index_related')
  58         entry_page = models.ForeignKey(Page, related_name='blog_entry_related')
  59         entry_archive_page = models.ForeignKey(Page, related_name='blog_entry_archive_related', null=True, blank=True)
  60         tag_page = models.ForeignKey(Page, related_name='blog_tag_related')
  61         tag_archive_page = models.ForeignKey(Page, related_name='blog_tag_archive_related', null=True, blank=True)
  62         entries_per_page = models.IntegerField(blank=True, validators=[validate_pagination_count], null=True)
  63
  64         entry_permalink_style = models.CharField(max_length=1, choices=ENTRY_PERMALINK_STYLE_CHOICES)
  65         entry_permalink_base = models.CharField(max_length=255, blank=False, default='entries')
  66         tag_permalink_base = models.CharField(max_length=255, blank=False, default='tags')
  67         feed_suffix = models.CharField(max_length=255, blank=False, default=FeedMultiViewMixin.feed_suffix)
  68         feeds_enabled = models.BooleanField()
  69         list_var = 'entries'
  70
  71         def __unicode__(self):
  72                 return u'BlogView for %s' % self.blog.title
  73
  74         @property
  75         def per_page(self):
  76                 return self.entries_per_page
  77
  78         def get_reverse_params(self, obj):
  79                 if isinstance(obj, BlogEntry):
  80                         if obj.blog == self.blog:
  81                                 kwargs = {'slug': obj.slug}
  82                                 if self.entry_permalink_style in 'DMY':
  83                                         kwargs.update({'year': str(obj.date.year).zfill(4)})
  84                                         if self.entry_permalink_style in 'DM':
  85                                                 kwargs.update({'month': str(obj.date.month).zfill(2)})
  86                                                 if self.entry_permalink_style == 'D':
  87                                                         kwargs.update({'day': str(obj.date.day).zfill(2)})
  88                                 return self.entry_view, [], kwargs
  89                 elif isinstance(obj, Tag):
  90                         if obj in self.blog.entry_tags:
  91                                 return 'entries_by_tag', [], {'tag_slugs': obj.slug}
  92                 elif isinstance(obj, (date, datetime)):
  93                         kwargs = {
  94                                 'year': str(obj.year).zfill(4),
  95                                 'month': str(obj.month).zfill(2),
  96                                 'day': str(obj.day).zfill(2)
  97                         }
  98                         return 'entries_by_day', [], kwargs
  99                 raise ViewCanNotProvideSubpath
 100
 101         def get_context(self):
 102                 return {'blog': self.blog}
 103
 104         @property
 105         def urlpatterns(self):
 106                 urlpatterns = patterns('',
 107                         url(r'^', include(self.feed_patterns(self.get_all_entries, self.index_page, 'index'))),
 108                 )
 109                 if self.feeds_enabled:
 110                         urlpatterns += patterns('',
 111                                 url(r'^%s/(?P<tag_slugs>[-\w]+[-+/\w]*)/%s/' % (self.tag_permalink_base, self.feed_suffix), self.feed_view(self.get_entries_by_tag, 'entries_by_tag_feed'), name='entries_by_tag_feed'),
 112                         )
 113                 urlpatterns += patterns('',
 114                         url(r'^%s/(?P<tag_slugs>[-\w]+[-+/\w]*)/' % self.tag_permalink_base, self.page_view(self.get_entries_by_tag, self.tag_page), name='entries_by_tag')
 115                 )
 116                 if self.tag_archive_page:
 117                         urlpatterns += patterns('',
 118                                 url((r'^(?:%s)/?$' % self.tag_permalink_base), self.tag_archive_view)
 119                         )
 120
 121                 if self.entry_archive_page:
 122                         if self.entry_permalink_style in 'DMY':
 123                                 urlpatterns += patterns('',
 124                                         url(r'^(?P<year>\d{4})/', include(self.feed_patterns(self.get_entries_by_ymd, self.entry_archive_page, 'entries_by_year')))
 125                                 )
 126                                 if self.entry_permalink_style in 'DM':
 127                                         urlpatterns += patterns('',
 128                                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/?$', include(self.feed_patterns(self.get_entries_by_ymd, self.entry_archive_page, 'entries_by_month'))),
 129                                         )
 130                                         if self.entry_permalink_style == 'D':
 131                                                 urlpatterns += patterns('',
 132                                                         url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/?$', include(self.feed_patterns(self.get_entries_by_ymd, self.entry_archive_page, 'entries_by_day')))
 133                                                 )
 134
 135                 if self.entry_permalink_style == 'D':
 136                         urlpatterns += patterns('',
 137                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/(?P<slug>[-\w]+)/?$', self.entry_view)
 138                         )
 139                 elif self.entry_permalink_style == 'M':
 140                         urlpatterns += patterns('',
 141                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<slug>[-\w]+)/?$', self.entry_view)
 142                         )
 143                 elif self.entry_permalink_style == 'Y':
 144                         urlpatterns += patterns('',
 145                                 url(r'^(?P<year>\d{4})/(?P<slug>[-\w]+)/?$', self.entry_view)
 146                         )
 147                 elif self.entry_permalink_style == 'B':
 148                         urlpatterns += patterns('',
 149                                 url((r'^(?:%s)/(?P<slug>[-\w]+)/?$' % self.entry_permalink_base), self.entry_view)
 150                         )
 151                 else:
 152                         urlpatterns = patterns('',
 153                                 url(r'^(?P<slug>[-\w]+)/?$', self.entry_view)
 154                         )
 155                 return urlpatterns
 156
 157         def get_all_entries(self, request, extra_context=None):
 158                 return self.blog.entries.all(), extra_context
 159
 160         def get_entries_by_ymd(self, request, year=None, month=None, day=None, extra_context=None):
 161                 if not self.entry_archive_page:
 162                         raise Http404
 163                 entries = self.blog.entries.all()
 164                 if year:
 165                         entries = entries.filter(date__year=year)
 166                 if month:
 167                         entries = entries.filter(date__month=month)
 168                 if day:
 169                         entries = entries.filter(date__day=day)
 170
 171                 context = extra_context or {}
 172                 context.update({'year': year, 'month': month, 'day': day})
 173                 return entries, context
 174
 175         def get_entries_by_tag(self, request, tag_slugs, extra_context=None):
 176                 tags = []
 177                 for tag_slug in tag_slugs.replace('+', '/').split('/'):
 178                         if tag_slug: # ignore blank slugs, handles for multiple consecutive separators (+ or /)
 179                                 try:
 180                                         tag = self.blog.entry_tags.get(slug=tag_slug)
 181                                 except:
 182                                         raise Http404
 183                                 tags.append(tag)
 184                 if len(tags) <= 0:
 185                         raise Http404
 186
 187                 entries = self.blog.entries.all()
 188                 for tag in tags:
 189                         entries = entries.filter(tags=tag)
 190
 191                 context = self.get_context()
 192                 context.update(extra_context or {})
 193                 context.update({'tags': tags})
 194
 195                 return entries, context
 196
 197         def add_item(self, feed, obj, kwargs=None):
 198                 defaults = {
 199                         'title': obj.title,
 200                         'description': obj.content,
 201                         'author_name': obj.author.get_full_name(),
 202                         'pubdate': obj.date
 203                 }
 204                 defaults.update(kwargs or {})
 205                 super(BlogView, self).add_item(feed, obj, defaults)
 206
 207         def get_feed(self, feed_type, extra_context, kwargs=None):
 208                 tags = (extra_context or {}).get('tags', None)
 209                 title = self.blog.title
 210
 211                 if tags is not None:
 212                         title += " - %s" % ', '.join([tag.name for tag in tags])
 213
 214                 defaults = {
 215                         'title': title
 216                 }
 217                 defaults.update(kwargs or {})
 218                 return super(BlogView, self).get_feed(feed_type, extra_context, defaults)
 219
 220         def entry_view(self, request, slug, year=None, month=None, day=None, extra_context=None):
 221                 entries = self.blog.entries.all()
 222                 if year:
 223                         entries = entries.filter(date__year=year)
 224                 if month:
 225                         entries = entries.filter(date__month=month)
 226                 if day:
 227                         entries = entries.filter(date__day=day)
 228                 try:
 229                         entry = entries.get(slug=slug)
 230                 except:
 231                         raise Http404
 232                 context = self.get_context()
 233                 context.update(extra_context or {})
 234                 context.update({'entry': entry})
 235                 return self.entry_page.render_to_response(request, extra_context=context)
 236
 237         def tag_archive_view(self, request, extra_context=None):
 238                 if not self.tag_archive_page:
 239                         raise Http404
 240                 context = {}
 241                 context.update(extra_context or {})
 242                 context.update({'blog': self.blog})
 243                 return self.tag_archive_page.render_to_response(request, extra_context=context)
 244
 245
 246 class Newsletter(Entity, Titled):
 247         pass
 248
 249
 250 register_value_model(Newsletter)
 251
 252
 253 class NewsletterArticle(Entity, Titled):
 254         newsletter = models.ForeignKey(Newsletter, related_name='articles')
 255         authors = models.ManyToManyField(getattr(settings, 'PHILO_PERSON_MODULE', 'auth.User'), related_name='newsletterarticles')
 256         date = models.DateTimeField(default=datetime.now)
 257         lede = TemplateField(null=True, blank=True, verbose_name='Summary')
 258         full_text = TemplateField(db_index=True)
 259         tags = models.ManyToManyField(Tag, related_name='newsletterarticles', blank=True, null=True)
 260
 261         class Meta:
 262                 get_latest_by = 'date'
 263                 ordering = ['-date']
 264                 unique_together = (('newsletter', 'slug'),)
 265
 266
 267 register_value_model(NewsletterArticle)
 268
 269
 270 class NewsletterIssue(Entity, Titled):
 271         newsletter = models.ForeignKey(Newsletter, related_name='issues')
 272         numbering = models.CharField(max_length=50, help_text='For example, 04.02 for volume 4, issue 2.')
 273         articles = models.ManyToManyField(NewsletterArticle, related_name='issues')
 274
 275         class Meta:
 276                 ordering = ['-numbering']
 277                 unique_together = (('newsletter', 'numbering'),)
 278
 279
 280 register_value_model(NewsletterIssue)
 281
 282
 283 class NewsletterView(MultiView, FeedMultiViewMixin):
 284         ARTICLE_PERMALINK_STYLE_CHOICES = (
 285                 ('D', 'Year, month, and day'),
 286                 ('M', 'Year and month'),
 287                 ('Y', 'Year'),
 288                 ('S', 'Slug only')
 289         )
 290
 291         newsletter = models.ForeignKey(Newsletter, related_name='newsletterviews')
 292
 293         index_page = models.ForeignKey(Page, related_name='newsletter_index_related')
 294         article_page = models.ForeignKey(Page, related_name='newsletter_article_related')
 295         article_archive_page = models.ForeignKey(Page, related_name='newsletter_article_archive_related', null=True, blank=True)
 296         issue_page = models.ForeignKey(Page, related_name='newsletter_issue_related')
 297         issue_archive_page = models.ForeignKey(Page, related_name='newsletter_issue_archive_related', null=True, blank=True)
 298
 299         article_permalink_style = models.CharField(max_length=1, choices=ARTICLE_PERMALINK_STYLE_CHOICES)
 300         article_permalink_base = models.CharField(max_length=255, blank=False, default='articles')
 301         issue_permalink_base = models.CharField(max_length=255, blank=False, default='issues')
 302
 303         feed_suffix = models.CharField(max_length=255, blank=False, default=FeedMultiViewMixin.feed_suffix)
 304         feeds_enabled = models.BooleanField()
 305         list_var = 'articles'
 306
 307         def __unicode__(self):
 308                 return self.newsletter.__unicode__()
 309
 310         def get_reverse_params(self, obj):
 311                 if isinstance(obj, NewsletterArticle):
 312                         if obj.newsletter == self.newsletter:
 313                                 kwargs = {'slug': obj.slug}
 314                                 if self.article_permalink_style in 'DMY':
 315                                         kwargs.update({'year': str(obj.date.year).zfill(4)})
 316                                         if self.article_permalink_style in 'DM':
 317                                                 kwargs.update({'month': str(obj.date.month).zfill(2)})
 318                                                 if self.article_permalink_style == 'D':
 319                                                         kwargs.update({'day': str(obj.date.day).zfill(2)})
 320                                 return self.article_view, [], kwargs
 321                 elif isinstance(obj, NewsletterIssue):
 322                         if obj.newsletter == self.newsletter:
 323                                 return 'issue', [], {'numbering': obj.numbering}
 324                 elif isinstance(obj, (date, datetime)):
 325                         kwargs = {
 326                                 'year': str(obj.year).zfill(4),
 327                                 'month': str(obj.month).zfill(2),
 328                                 'day': str(obj.day).zfill(2)
 329                         }
 330                         return 'articles_by_day', [], kwargs
 331                 raise ViewCanNotProvideSubpath
 332
 333         @property
 334         def urlpatterns(self):
 335                 urlpatterns = patterns('',
 336                         url(r'^', include(self.feed_patterns(self.get_all_articles, self.index_page, 'index'))),
 337                         url(r'^(?:%s)/(?P<numbering>.+)/' % self.issue_permalink_base, include(self.feed_patterns(self.get_articles_by_issue, self.issue_page, 'issue')))
 338                 )
 339                 if self.issue_archive_page:
 340                         urlpatterns += patterns('',
 341                                 url(r'^(?:%s)/$' % self.issue_permalink_base, self.issue_archive_view)
 342                         )
 343                 if self.article_archive_page:
 344                         urlpatterns += patterns('',
 345                                 url(r'^(?:%s)/' % self.article_permalink_base, include(self.feed_patterns(self.get_all_articles, self.article_archive_page, 'articles')))
 346                         )
 347                         if self.article_permalink_style in 'DMY':
 348                                 urlpatterns += patterns('',
 349                                         url(r'^(?:%s)/(?P<year>\d{4})/' % self.article_permalink_base, include(self.feed_patterns(self.get_articles_by_ymd, self.article_archive_page, 'articles_by_year')))
 350                                 )
 351                                 if self.article_permalink_style in 'DM':
 352                                         urlpatterns += patterns('',
 353                                                 url(r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/' % self.article_permalink_base, include(self.feed_patterns(self.get_articles_by_ymd, self.article_archive_page, 'articles_by_month')))
 354                                         )
 355                                         if self.article_permalink_style == 'D':
 356                                                 urlpatterns += patterns('',
 357                                                         url(r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/' % self.article_permalink_base, include(self.feed_patterns(self.get_articles_by_ymd, self.article_archive_page, 'articles_by_day')))
 358                                                 )
 359
 360                 if self.article_permalink_style == 'Y':
 361                         urlpatterns += patterns('',
 362                                 url(r'^(?:%s)/(?P<year>\d{4})/(?P<slug>[\w-]+)/$' % self.article_permalink_base, self.article_view)
 363                         )
 364                 elif self.article_permalink_style == 'M':
 365                         urlpatterns += patterns('',
 366                                 url(r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/(?P<slug>[\w-]+)/$' % self.article_permalink_base, self.article_view)
 367                         )
 368                 elif self.article_permalink_style == 'D':
 369                         urlpatterns += patterns('',
 370                                 url(r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/(?P<slug>[\w-]+)/$' % self.article_permalink_base, self.article_view)
 371                         )
 372                 else:
 373                         urlpatterns += patterns('',
 374                                 url(r'^(?:%s)/(?P<slug>[-\w]+)/?$' % self.article_permalink_base, self.article_view)
 375                         )
 376
 377                 return urlpatterns
 378
 379         def get_context(self):
 380                 return {'newsletter': self.newsletter}
 381
 382         def get_all_articles(self, request, extra_context=None):
 383                 return self.newsletter.articles.all(), extra_context
 384
 385         def get_articles_by_ymd(self, request, year, month=None, day=None, extra_context=None):
 386                 articles = self.newsletter.articles.filter(dat__year=year)
 387                 if month:
 388                         articles = articles.filter(date__month=month)
 389                 if day:
 390                         articles = articles.filter(date__day=day)
 391                 return articles
 392
 393         def get_articles_by_issue(self, request, numbering, extra_context=None):
 394                 try:
 395                         issue = self.newsletter.issues.get(numbering=numbering)
 396                 except NewsletterIssue.DoesNotExist:
 397                         raise Http404
 398                 context = extra_context or {}
 399                 context.update({'issue': issue})
 400                 return issue.articles.all(), context
 401
 402         def article_view(self, request, slug, year=None, month=None, day=None, extra_context=None):
 403                 articles = self.newsletter.articles.all()
 404                 if year:
 405                         articles = articles.filter(date__year=year)
 406                 if month:
 407                         articles = articles.filter(date__month=month)
 408                 if day:
 409                         articles = articles.filter(date__day=day)
 410                 try:
 411                         article = articles.get(slug=slug)
 412                 except NewsletterArticle.DoesNotExist:
 413                         raise Http404
 414                 context = self.get_context()
 415                 context.update(extra_context or {})
 416                 context.update({'article': article})
 417                 return self.article_page.render_to_response(request, extra_context=context)
 418
 419         def issue_archive_view(self, request, extra_context=None):
 420                 if not self.issue_archive_page:
 421                         raise Http404
 422                 context = {}
 423                 context.update(extra_context or {})
 424                 context.update({'newsletter': self.newsletter})
 425                 return self.issue_archive_page.render_to_response(request, extra_context=context)
 426
 427         def add_item(self, feed, obj, kwargs=None):
 428                 defaults = {
 429                         'title': obj.title,
 430                         'author_name': ', '.join([author.get_full_name() for author in obj.authors.all()]),
 431                         'pubdate': obj.date,
 432                         'description': obj.full_text,
 433                         'categories': [tag.name for tag in obj.tags.all()]
 434                 }
 435                 defaults.update(kwargs or {})
 436                 super(NewsletterView, self).add_item(feed, obj, defaults)
 437
 438         def get_feed(self, feed_type, extra_context, kwargs=None):
 439                 title = self.newsletter.title
 440
 441                 defaults = {
 442                         'title': title
 443                 }
 444                 defaults.update(kwargs or {})
 445                 return super(NewsletterView, self).get_feed(feed_type, extra_context, defaults)