contrib/penfield/models.py

   1 from django.conf import settings
   2 from django.conf.urls.defaults import url, patterns, include
   3 from django.db import models
   4 from django.http import Http404
   5 from django.template import loader, Context
   6 from django.utils.feedgenerator import Atom1Feed, Rss201rev2Feed
   7 from datetime import date, datetime
   8 from philo.contrib.penfield.utils import FeedMultiViewMixin
   9 from philo.contrib.penfield.validators import validate_pagination_count
  10 from philo.exceptions import ViewCanNotProvideSubpath
  11 from philo.models import Tag, Titled, Entity, MultiView, Page, register_value_model, TemplateField
  12 from philo.utils import paginate
  13
  14
  15 class Blog(Entity, Titled):
  16         @property
  17         def entry_tags(self):
  18                 """ Returns a QuerySet of Tags that are used on any entries in this blog. """
  19                 return Tag.objects.filter(blogentries__blog=self).distinct()
  20
  21         @property
  22         def entry_dates(self):
  23                 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')}
  24                 return dates
  25
  26
  27 register_value_model(Blog)
  28
  29
  30 class BlogEntry(Entity, Titled):
  31         blog = models.ForeignKey(Blog, related_name='entries', blank=True, null=True)
  32         author = models.ForeignKey(getattr(settings, 'PHILO_PERSON_MODULE', 'auth.User'), related_name='blogentries')
  33         date = models.DateTimeField(default=None)
  34         content = models.TextField()
  35         excerpt = models.TextField(blank=True, null=True)
  36         tags = models.ManyToManyField(Tag, related_name='blogentries', blank=True, null=True)
  37
  38         def save(self, *args, **kwargs):
  39                 if self.date is None:
  40                         self.date = datetime.now()
  41                 super(BlogEntry, self).save(*args, **kwargs)
  42
  43         class Meta:
  44                 ordering = ['-date']
  45                 verbose_name_plural = "blog entries"
  46                 get_latest_by = "date"
  47
  48
  49 register_value_model(BlogEntry)
  50
  51
  52 class BlogView(MultiView, FeedMultiViewMixin):
  53         ENTRY_PERMALINK_STYLE_CHOICES = (
  54                 ('D', 'Year, month, and day'),
  55                 ('M', 'Year and month'),
  56                 ('Y', 'Year'),
  57                 ('B', 'Custom base'),
  58                 ('N', 'No base')
  59         )
  60
  61         blog = models.ForeignKey(Blog, related_name='blogviews')
  62
  63         index_page = models.ForeignKey(Page, related_name='blog_index_related')
  64         entry_page = models.ForeignKey(Page, related_name='blog_entry_related')
  65         entry_archive_page = models.ForeignKey(Page, related_name='blog_entry_archive_related', null=True, blank=True)
  66         tag_page = models.ForeignKey(Page, related_name='blog_tag_related')
  67         tag_archive_page = models.ForeignKey(Page, related_name='blog_tag_archive_related', null=True, blank=True)
  68         entries_per_page = models.IntegerField(blank=True, validators=[validate_pagination_count], null=True)
  69
  70         entry_permalink_style = models.CharField(max_length=1, choices=ENTRY_PERMALINK_STYLE_CHOICES)
  71         entry_permalink_base = models.CharField(max_length=255, blank=False, default='entries')
  72         tag_permalink_base = models.CharField(max_length=255, blank=False, default='tags')
  73         feed_suffix = models.CharField(max_length=255, blank=False, default=FeedMultiViewMixin.feed_suffix)
  74         feeds_enabled = models.BooleanField()
  75         list_var = 'entries'
  76
  77         def __unicode__(self):
  78                 return u'BlogView for %s' % self.blog.title
  79
  80         @property
  81         def per_page(self):
  82                 return self.entries_per_page
  83
  84         def get_reverse_params(self, obj):
  85                 if isinstance(obj, BlogEntry):
  86                         if obj.blog == self.blog:
  87                                 kwargs = {'slug': obj.slug}
  88                                 if self.entry_permalink_style in 'DMY':
  89                                         kwargs.update({'year': str(obj.date.year).zfill(4)})
  90                                         if self.entry_permalink_style in 'DM':
  91                                                 kwargs.update({'month': str(obj.date.month).zfill(2)})
  92                                                 if self.entry_permalink_style == 'D':
  93                                                         kwargs.update({'day': str(obj.date.day).zfill(2)})
  94                                 return self.entry_view, [], kwargs
  95                 elif isinstance(obj, Tag):
  96                         if obj in self.blog.entry_tags:
  97                                 return 'entries_by_tag', [], {'tag_slugs': obj.slug}
  98                 elif isinstance(obj, (date, datetime)):
  99                         kwargs = {
 100                                 'year': str(obj.year).zfill(4),
 101                                 'month': str(obj.month).zfill(2),
 102                                 'day': str(obj.day).zfill(2)
 103                         }
 104                         return 'entries_by_day', [], kwargs
 105                 raise ViewCanNotProvideSubpath
 106
 107         def get_context(self):
 108                 return {'blog': self.blog}
 109
 110         @property
 111         def urlpatterns(self):
 112                 urlpatterns = patterns('',
 113                         url(r'^', include(self.feed_patterns(self.get_all_entries, self.index_page, 'index'))),
 114                 )
 115                 if self.feeds_enabled:
 116                         urlpatterns += patterns('',
 117                                 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'),
 118                         )
 119                 urlpatterns += patterns('',
 120                         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')
 121                 )
 122                 if self.tag_archive_page:
 123                         urlpatterns += patterns('',
 124                                 url((r'^(?:%s)/?$' % self.tag_permalink_base), self.tag_archive_view)
 125                         )
 126
 127                 if self.entry_archive_page:
 128                         if self.entry_permalink_style in 'DMY':
 129                                 urlpatterns += patterns('',
 130                                         url(r'^(?P<year>\d{4})/', include(self.feed_patterns(self.get_entries_by_ymd, self.entry_archive_page, 'entries_by_year')))
 131                                 )
 132                                 if self.entry_permalink_style in 'DM':
 133                                         urlpatterns += patterns('',
 134                                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/?$', include(self.feed_patterns(self.get_entries_by_ymd, self.entry_archive_page, 'entries_by_month'))),
 135                                         )
 136                                         if self.entry_permalink_style == 'D':
 137                                                 urlpatterns += patterns('',
 138                                                         url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/?$', include(self.feed_patterns(self.get_entries_by_ymd, self.entry_archive_page, 'entries_by_day')))
 139                                                 )
 140
 141                 if self.entry_permalink_style == 'D':
 142                         urlpatterns += patterns('',
 143                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/(?P<slug>[-\w]+)/?$', self.entry_view)
 144                         )
 145                 elif self.entry_permalink_style == 'M':
 146                         urlpatterns += patterns('',
 147                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<slug>[-\w]+)/?$', self.entry_view)
 148                         )
 149                 elif self.entry_permalink_style == 'Y':
 150                         urlpatterns += patterns('',
 151                                 url(r'^(?P<year>\d{4})/(?P<slug>[-\w]+)/?$', self.entry_view)
 152                         )
 153                 elif self.entry_permalink_style == 'B':
 154                         urlpatterns += patterns('',
 155                                 url((r'^(?:%s)/(?P<slug>[-\w]+)/?$' % self.entry_permalink_base), self.entry_view)
 156                         )
 157                 else:
 158                         urlpatterns = patterns('',
 159                                 url(r'^(?P<slug>[-\w]+)/?$', self.entry_view)
 160                         )
 161                 return urlpatterns
 162
 163         def get_all_entries(self, request, extra_context=None):
 164                 return self.blog.entries.all(), extra_context
 165
 166         def get_entries_by_ymd(self, request, year=None, month=None, day=None, extra_context=None):
 167                 if not self.entry_archive_page:
 168                         raise Http404
 169                 entries = self.blog.entries.all()
 170                 if year:
 171                         entries = entries.filter(date__year=year)
 172                 if month:
 173                         entries = entries.filter(date__month=month)
 174                 if day:
 175                         entries = entries.filter(date__day=day)
 176
 177                 context = extra_context or {}
 178                 context.update({'year': year, 'month': month, 'day': day})
 179                 return entries, context
 180
 181         def get_entries_by_tag(self, request, tag_slugs, extra_context=None):
 182                 tag_slugs = tag_slugs.replace('+', '/').split('/')
 183                 tags = self.blog.entry_tags.filter(slug__in=tag_slugs)
 184
 185                 if not tags:
 186                         raise Http404
 187
 188                 # Raise a 404 on an incorrect slug.
 189                 found_slugs = [tag.slug for tag in tags]
 190                 for slug in tag_slugs:
 191                         if slug and slug not in found_slugs:
 192                                 raise Http404
 193
 194                 entries = self.blog.entries.all()
 195                 for tag in tags:
 196                         entries = entries.filter(tags=tag)
 197
 198                 context = self.get_context()
 199                 context.update(extra_context or {})
 200                 context.update({'tags': tags})
 201
 202                 return entries, context
 203
 204         def add_item(self, feed, obj, kwargs=None):
 205                 title = loader.get_template("penfield/feeds/blog_entry/title.html")
 206                 description = loader.get_template("penfield/feeds/blog_entry/description.html")
 207                 defaults = {
 208                         'title': title.render(Context({'entry': obj})),
 209                         'description': description.render(Context({'entry': obj})),
 210                         'author_name': obj.author.get_full_name(),
 211                         'pubdate': obj.date
 212                 }
 213                 defaults.update(kwargs or {})
 214                 super(BlogView, self).add_item(feed, obj, defaults)
 215
 216         def get_feed(self, feed_type, extra_context, kwargs=None):
 217                 tags = (extra_context or {}).get('tags', None)
 218                 title = self.blog.title
 219
 220                 if tags is not None:
 221                         title += " - %s" % ', '.join([tag.name for tag in tags])
 222
 223                 defaults = {
 224                         'title': title
 225                 }
 226                 defaults.update(kwargs or {})
 227                 return super(BlogView, self).get_feed(feed_type, extra_context, defaults)
 228
 229         def entry_view(self, request, slug, year=None, month=None, day=None, extra_context=None):
 230                 entries = self.blog.entries.all()
 231                 if year:
 232                         entries = entries.filter(date__year=year)
 233                 if month:
 234                         entries = entries.filter(date__month=month)
 235                 if day:
 236                         entries = entries.filter(date__day=day)
 237                 try:
 238                         entry = entries.get(slug=slug)
 239                 except:
 240                         raise Http404
 241                 context = self.get_context()
 242                 context.update(extra_context or {})
 243                 context.update({'entry': entry})
 244                 return self.entry_page.render_to_response(request, extra_context=context)
 245
 246         def tag_archive_view(self, request, extra_context=None):
 247                 if not self.tag_archive_page:
 248                         raise Http404
 249                 context = {}
 250                 context.update(extra_context or {})
 251                 context.update({'blog': self.blog})
 252                 return self.tag_archive_page.render_to_response(request, extra_context=context)
 253
 254
 255 class Newsletter(Entity, Titled):
 256         pass
 257
 258
 259 register_value_model(Newsletter)
 260
 261
 262 class NewsletterArticle(Entity, Titled):
 263         newsletter = models.ForeignKey(Newsletter, related_name='articles')
 264         authors = models.ManyToManyField(getattr(settings, 'PHILO_PERSON_MODULE', 'auth.User'), related_name='newsletterarticles')
 265         date = models.DateTimeField(default=None)
 266         lede = TemplateField(null=True, blank=True, verbose_name='Summary')
 267         full_text = TemplateField(db_index=True)
 268         tags = models.ManyToManyField(Tag, related_name='newsletterarticles', blank=True, null=True)
 269
 270         def save(self, *args, **kwargs):
 271                 if self.date is None:
 272                         self.date = datetime.now()
 273                 super(NewsletterArticle, self).save(*args, **kwargs)
 274
 275         class Meta:
 276                 get_latest_by = 'date'
 277                 ordering = ['-date']
 278                 unique_together = (('newsletter', 'slug'),)
 279
 280
 281 register_value_model(NewsletterArticle)
 282
 283
 284 class NewsletterIssue(Entity, Titled):
 285         newsletter = models.ForeignKey(Newsletter, related_name='issues')
 286         numbering = models.CharField(max_length=50, help_text='For example, 04.02 for volume 4, issue 2.')
 287         articles = models.ManyToManyField(NewsletterArticle, related_name='issues')
 288
 289         class Meta:
 290                 ordering = ['-numbering']
 291                 unique_together = (('newsletter', 'numbering'),)
 292
 293
 294 register_value_model(NewsletterIssue)
 295
 296
 297 class NewsletterView(MultiView, FeedMultiViewMixin):
 298         ARTICLE_PERMALINK_STYLE_CHOICES = (
 299                 ('D', 'Year, month, and day'),
 300                 ('M', 'Year and month'),
 301                 ('Y', 'Year'),
 302                 ('S', 'Slug only')
 303         )
 304
 305         newsletter = models.ForeignKey(Newsletter, related_name='newsletterviews')
 306
 307         index_page = models.ForeignKey(Page, related_name='newsletter_index_related')
 308         article_page = models.ForeignKey(Page, related_name='newsletter_article_related')
 309         article_archive_page = models.ForeignKey(Page, related_name='newsletter_article_archive_related', null=True, blank=True)
 310         issue_page = models.ForeignKey(Page, related_name='newsletter_issue_related')
 311         issue_archive_page = models.ForeignKey(Page, related_name='newsletter_issue_archive_related', null=True, blank=True)
 312
 313         article_permalink_style = models.CharField(max_length=1, choices=ARTICLE_PERMALINK_STYLE_CHOICES)
 314         article_permalink_base = models.CharField(max_length=255, blank=False, default='articles')
 315         issue_permalink_base = models.CharField(max_length=255, blank=False, default='issues')
 316
 317         feed_suffix = models.CharField(max_length=255, blank=False, default=FeedMultiViewMixin.feed_suffix)
 318         feeds_enabled = models.BooleanField()
 319         list_var = 'articles'
 320
 321         def __unicode__(self):
 322                 return self.newsletter.__unicode__()
 323
 324         def get_reverse_params(self, obj):
 325                 if isinstance(obj, NewsletterArticle):
 326                         if obj.newsletter == self.newsletter:
 327                                 kwargs = {'slug': obj.slug}
 328                                 if self.article_permalink_style in 'DMY':
 329                                         kwargs.update({'year': str(obj.date.year).zfill(4)})
 330                                         if self.article_permalink_style in 'DM':
 331                                                 kwargs.update({'month': str(obj.date.month).zfill(2)})
 332                                                 if self.article_permalink_style == 'D':
 333                                                         kwargs.update({'day': str(obj.date.day).zfill(2)})
 334                                 return self.article_view, [], kwargs
 335                 elif isinstance(obj, NewsletterIssue):
 336                         if obj.newsletter == self.newsletter:
 337                                 return 'issue', [], {'numbering': obj.numbering}
 338                 elif isinstance(obj, (date, datetime)):
 339                         kwargs = {
 340                                 'year': str(obj.year).zfill(4),
 341                                 'month': str(obj.month).zfill(2),
 342                                 'day': str(obj.day).zfill(2)
 343                         }
 344                         return 'articles_by_day', [], kwargs
 345                 raise ViewCanNotProvideSubpath
 346
 347         @property
 348         def urlpatterns(self):
 349                 urlpatterns = patterns('',
 350                         url(r'^', include(self.feed_patterns(self.get_all_articles, self.index_page, 'index'))),
 351                         url(r'^(?:%s)/(?P<numbering>.+)/' % self.issue_permalink_base, include(self.feed_patterns(self.get_articles_by_issue, self.issue_page, 'issue')))
 352                 )
 353                 if self.issue_archive_page:
 354                         urlpatterns += patterns('',
 355                                 url(r'^(?:%s)/$' % self.issue_permalink_base, self.issue_archive_view)
 356                         )
 357                 if self.article_archive_page:
 358                         urlpatterns += patterns('',
 359                                 url(r'^(?:%s)/' % self.article_permalink_base, include(self.feed_patterns(self.get_all_articles, self.article_archive_page, 'articles')))
 360                         )
 361                         if self.article_permalink_style in 'DMY':
 362                                 urlpatterns += patterns('',
 363                                         url(r'^(?:%s)/(?P<year>\d{4})/' % self.article_permalink_base, include(self.feed_patterns(self.get_articles_by_ymd, self.article_archive_page, 'articles_by_year')))
 364                                 )
 365                                 if self.article_permalink_style in 'DM':
 366                                         urlpatterns += patterns('',
 367                                                 url(r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/' % self.article_permalink_base, include(self.feed_patterns(self.get_articles_by_ymd, self.article_archive_page, 'articles_by_month')))
 368                                         )
 369                                         if self.article_permalink_style == 'D':
 370                                                 urlpatterns += patterns('',
 371                                                         url(r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/' % self.article_permalink_base, include(self.feed_patterns(self.get_articles_by_ymd, self.article_archive_page, 'articles_by_day')))
 372                                                 )
 373
 374                 if self.article_permalink_style == 'Y':
 375                         urlpatterns += patterns('',
 376                                 url(r'^(?:%s)/(?P<year>\d{4})/(?P<slug>[\w-]+)/$' % self.article_permalink_base, self.article_view)
 377                         )
 378                 elif self.article_permalink_style == 'M':
 379                         urlpatterns += patterns('',
 380                                 url(r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/(?P<slug>[\w-]+)/$' % self.article_permalink_base, self.article_view)
 381                         )
 382                 elif self.article_permalink_style == 'D':
 383                         urlpatterns += patterns('',
 384                                 url(r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/(?P<slug>[\w-]+)/$' % self.article_permalink_base, self.article_view)
 385                         )
 386                 else:
 387                         urlpatterns += patterns('',
 388                                 url(r'^(?:%s)/(?P<slug>[-\w]+)/?$' % self.article_permalink_base, self.article_view)
 389                         )
 390
 391                 return urlpatterns
 392
 393         def get_context(self):
 394                 return {'newsletter': self.newsletter}
 395
 396         def get_all_articles(self, request, extra_context=None):
 397                 return self.newsletter.articles.all(), extra_context
 398
 399         def get_articles_by_ymd(self, request, year, month=None, day=None, extra_context=None):
 400                 articles = self.newsletter.articles.filter(dat__year=year)
 401                 if month:
 402                         articles = articles.filter(date__month=month)
 403                 if day:
 404                         articles = articles.filter(date__day=day)
 405                 return articles
 406
 407         def get_articles_by_issue(self, request, numbering, extra_context=None):
 408                 try:
 409                         issue = self.newsletter.issues.get(numbering=numbering)
 410                 except NewsletterIssue.DoesNotExist:
 411                         raise Http404
 412                 context = extra_context or {}
 413                 context.update({'issue': issue})
 414                 return issue.articles.all(), context
 415
 416         def article_view(self, request, slug, year=None, month=None, day=None, extra_context=None):
 417                 articles = self.newsletter.articles.all()
 418                 if year:
 419                         articles = articles.filter(date__year=year)
 420                 if month:
 421                         articles = articles.filter(date__month=month)
 422                 if day:
 423                         articles = articles.filter(date__day=day)
 424                 try:
 425                         article = articles.get(slug=slug)
 426                 except NewsletterArticle.DoesNotExist:
 427                         raise Http404
 428                 context = self.get_context()
 429                 context.update(extra_context or {})
 430                 context.update({'article': article})
 431                 return self.article_page.render_to_response(request, extra_context=context)
 432
 433         def issue_archive_view(self, request, extra_context=None):
 434                 if not self.issue_archive_page:
 435                         raise Http404
 436                 context = {}
 437                 context.update(extra_context or {})
 438                 context.update({'newsletter': self.newsletter})
 439                 return self.issue_archive_page.render_to_response(request, extra_context=context)
 440
 441         def add_item(self, feed, obj, kwargs=None):
 442                 title = loader.get_template("penfield/feeds/newsletter_article/title.html")
 443                 description = loader.get_template("penfield/feeds/newsletter_article/description.html")
 444                 defaults = {
 445                         'title': title.render(Context({'article': obj})),
 446                         'author_name': ', '.join([author.get_full_name() for author in obj.authors.all()]),
 447                         'pubdate': obj.date,
 448                         'description': description.render(Context({'article': obj})),
 449                         'categories': [tag.name for tag in obj.tags.all()]
 450                 }
 451                 defaults.update(kwargs or {})
 452                 super(NewsletterView, self).add_item(feed, obj, defaults)
 453
 454         def get_feed(self, feed_type, extra_context, kwargs=None):
 455                 title = self.newsletter.title
 456
 457                 defaults = {
 458                         'title': title
 459                 }
 460                 defaults.update(kwargs or {})
 461                 return super(NewsletterView, self).get_feed(feed_type, extra_context, defaults)