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
   4 from philo.exceptions import ViewCanNotProvideSubpath
   5 from django.conf.urls.defaults import url, patterns
   6 from django.core.urlresolvers import reverse
   7 from django.http import Http404, HttpResponse
   8 from datetime import datetime
   9 from philo.contrib.penfield.utils import paginate
  10 from philo.contrib.penfield.validators import validate_pagination_count
  11
  12
  13 class Blog(Entity, Titled):
  14         @property
  15         def entry_tags(self):
  16                 """ Returns a QuerySet of Tags that are used on any entries in this blog. """
  17                 return Tag.objects.filter(blogentries__blog=self).distinct()
  18
  19
  20 register_value_model(Blog)
  21
  22
  23 class BlogEntry(Entity, Titled):
  24         blog = models.ForeignKey(Blog, related_name='entries')
  25         author = models.ForeignKey(getattr(settings, 'PHILO_PERSON_MODULE', 'auth.User'), related_name='blogentries')
  26         date = models.DateTimeField(default=datetime.now)
  27         content = models.TextField()
  28         excerpt = models.TextField(blank=True, null=True)
  29         tags = models.ManyToManyField(Tag, related_name='blogentries', blank=True, null=True)
  30
  31         class Meta:
  32                 ordering = ['-date']
  33                 verbose_name_plural = "blog entries"
  34
  35
  36 register_value_model(BlogEntry)
  37
  38
  39 class BlogView(MultiView):
  40         ENTRY_PERMALINK_STYLE_CHOICES = (
  41                 ('D', 'Year, month, and day'),
  42                 ('M', 'Year and month'),
  43                 ('Y', 'Year'),
  44                 ('B', 'Custom base'),
  45                 ('N', 'No base')
  46         )
  47
  48         blog = models.ForeignKey(Blog, related_name='blogviews')
  49
  50         index_page = models.ForeignKey(Page, related_name='blog_index_related')
  51         entry_page = models.ForeignKey(Page, related_name='blog_entry_related')
  52         entry_archive_page = models.ForeignKey(Page, related_name='blog_entry_archive_related', null=True, blank=True)
  53         tag_page = models.ForeignKey(Page, related_name='blog_tag_related')
  54         tag_archive_page = models.ForeignKey(Page, related_name='blog_tag_archive_related', null=True, blank=True)
  55         entries_per_page = models.IntegerField(blank=True, validators=[validate_pagination_count], null=True)
  56
  57         entry_permalink_style = models.CharField(max_length=1, choices=ENTRY_PERMALINK_STYLE_CHOICES)
  58         entry_permalink_base = models.CharField(max_length=255, blank=False, default='entries')
  59         tag_permalink_base = models.CharField(max_length=255, blank=False, default='tags')
  60
  61         def __unicode__(self):
  62                 return u'BlogView for %s' % self.blog.title
  63
  64         def get_subpath(self, obj):
  65                 if isinstance(obj, BlogEntry):
  66                         if obj.blog == self.blog:
  67                                 entry_view_args = {'slug': obj.slug}
  68                                 if self.entry_permalink_style in 'DMY':
  69                                         entry_view_args.update({'year': str(obj.date.year).zfill(4)})
  70                                         if self.entry_permalink_style in 'DM':
  71                                                 entry_view_args.update({'month': str(obj.date.month).zfill(2)})
  72                                                 if self.entry_permalink_style == 'D':
  73                                                         entry_view_args.update({'day': str(obj.date.day).zfill(2)})
  74                                 return reverse(self.entry_view, urlconf=self, kwargs=entry_view_args)
  75                 elif isinstance(obj, Tag):
  76                         if obj in self.blog.entry_tags:
  77                                 return reverse(self.tag_view, urlconf=self, kwargs={'tag_slugs': obj.slug})
  78                 raise ViewCanNotProvideSubpath
  79
  80         @property
  81         def urlpatterns(self):
  82                 base_patterns = patterns('',
  83                         url(r'^$', self.index_view),
  84                         url((r'^(?:%s)/?$' % self.tag_permalink_base), self.tag_archive_view),
  85                         url((r'^(?:%s)/(?P<tag_slugs>[-\w]+[-+/\w]*)/?$' % self.tag_permalink_base), self.tag_view)
  86                 )
  87                 if self.entry_permalink_style == 'D':
  88                         entry_patterns = patterns('',
  89                                 url(r'^(?P<year>\d{4})/?$', self.entry_archive_view),
  90                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/?$', self.entry_archive_view),
  91                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/?$', self.entry_archive_view),
  92                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/(?P<slug>[-\w]+)/?$', self.entry_view)
  93                         )
  94                 elif self.entry_permalink_style == 'M':
  95                         entry_patterns = patterns('',
  96                                 url(r'^(?P<year>\d{4})/?$', self.entry_archive_view),
  97                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/?$', self.entry_archive_view),
  98                                 url(r'^(?P<year>\d{4})/(?P<month>\d{2})/(?P<slug>[-\w]+)/?$', self.entry_view)
  99                         )
 100                 elif self.entry_permalink_style == 'Y':
 101                         entry_patterns = patterns('',
 102                                 url(r'^(?P<year>\d{4})/?$', self.entry_archive_view),
 103                                 url(r'^(?P<year>\d{4})/(?P<slug>[-\w]+)/?$', self.entry_view)
 104                         )
 105                 elif self.entry_permalink_style == 'B':
 106                         entry_patterns = patterns('',
 107                                 url((r'^(?:%s)/?$' % self.entry_permalink_base), self.entry_archive_view),
 108                                 url((r'^(?:%s)/(?P<slug>[-\w]+)/?$' % self.entry_permalink_base), self.entry_view)
 109                         )
 110                 else:
 111                         entry_patterns = patterns('',
 112                                 url(r'^(?P<slug>[-\w]+)/?$', self.entry_view)
 113                         )
 114                 return base_patterns + entry_patterns
 115
 116         def index_view(self, request, node=None, extra_context=None):
 117                 entries = self.blog.entries.all()
 118                 if self.entries_per_page:
 119                         paginated_page = paginate(request, entries, self.entries_per_page)
 120                         entries = paginated_page.object_list
 121                 else:
 122                         paginated_page = None
 123                 context = {}
 124                 context.update(extra_context or {})
 125                 context.update({'blog': self.blog, 'entries': entries, 'paginated_page': paginated_page})
 126                 return self.index_page.render_to_response(node, request, extra_context=context)
 127
 128         def entry_view(self, request, slug, year=None, month=None, day=None, node=None, extra_context=None):
 129                 entries = self.blog.entries.all()
 130                 if year:
 131                         entries = entries.filter(date__year=year)
 132                 if month:
 133                         entries = entries.filter(date__month=month)
 134                 if day:
 135                         entries = entries.filter(date__day=day)
 136                 try:
 137                         entry = entries.get(slug=slug)
 138                 except:
 139                         raise Http404
 140                 context = {}
 141                 context.update(extra_context or {})
 142                 context.update({'blog': self.blog, 'entry': entry})
 143                 return self.entry_page.render_to_response(node, request, extra_context=context)
 144
 145         def entry_archive_view(self, request, year=None, month=None, day=None, node=None, extra_context=None):
 146                 if not self.entry_archive_page:
 147                         raise Http404
 148                 entries = self.blog.entries.all()
 149                 if year:
 150                         entries = entries.filter(date__year=year)
 151                 if month:
 152                         entries = entries.filter(date__month=month)
 153                 if day:
 154                         entries = entries.filter(date__day=day)
 155                 if self.entries_per_page:
 156                         paginated_page = paginate(request, entries, self.entries_per_page)
 157                         entries = paginated_page.object_list
 158                 else:
 159                         paginated_page = None
 160                 context = {}
 161                 context.update(extra_context or {})
 162                 context.update({'blog': self.blog, 'year': year, 'month': month, 'day': day, 'entries': entries, 'paginated_page': paginated_page})
 163                 return self.entry_archive_page.render_to_response(node, request, extra_context=context)
 164
 165         def tag_view(self, request, tag_slugs, node=None, extra_context=None):
 166                 tags = []
 167                 for tag_slug in tag_slugs.replace('+', '/').split('/'):
 168                         if tag_slug: # ignore blank slugs, handles for multiple consecutive separators (+ or /)
 169                                 try:
 170                                         tag = self.blog.entry_tags.get(slug=tag_slug)
 171                                 except:
 172                                         raise Http404
 173                                 tags.append(tag)
 174                 if len(tags) <= 0:
 175                         raise Http404
 176
 177                 entries = self.blog.entries.all()
 178                 for tag in tags:
 179                         entries = entries.filter(tags=tag)
 180                 if entries.count() <= 0:
 181                         raise Http404
 182
 183                 if self.entries_per_page:
 184                         paginated_page = paginate(request, entries, self.entries_per_page)
 185                         entries = paginated_page.object_list
 186                 else:
 187                         paginated_page = None
 188                 context = {}
 189                 context.update(extra_context or {})
 190                 context.update({'blog': self.blog, 'tags': tags, 'entries': entries, 'paginated_page': paginated_page})
 191                 return self.tag_page.render_to_response(node, request, extra_context=context)
 192
 193         def tag_archive_view(self, request, node=None, extra_context=None):
 194                 if not self.tag_archive_page:
 195                         raise Http404
 196                 context = {}
 197                 context.update(extra_context or {})
 198                 context.update({'blog': self.blog})
 199                 return self.tag_archive_page.render_to_response(node, request, extra_context=context)
 200
 201
 202 class Newsletter(Entity, Titled):
 203         pass
 204
 205
 206 class NewsletterArticle(Entity, Titled):
 207         newsletter = models.ForeignKey(Newsletter, related_name='articles')
 208         authors = models.ManyToManyField(getattr(settings, 'PHILO_PERSON_MODULE', 'auth.User'), related_name='newsletterarticles')
 209         date = models.DateTimeField(default=datetime.now)
 210         lede = models.TextField(null=True, blank=True)
 211         full_text = models.TextField()
 212
 213         class Meta:
 214                 ordering = ['-date']
 215                 unique_together = (('newsletter', 'slug'),)
 216
 217
 218 register_value_model(NewsletterArticle)
 219
 220
 221 class NewsletterIssue(Entity, Titled):
 222         newsletter = models.ForeignKey(Newsletter, related_name='issues')
 223         number = models.PositiveIntegerField()
 224         articles = models.ManyToManyField(NewsletterArticle)
 225
 226         class Meta:
 227                 ordering = ['-number']
 228                 unique_together = (('newsletter', 'number'),)
 229
 230
 231 class NewsletterView(MultiView):
 232         ARTICLE_PERMALINK_STYLE_CHOICES = (
 233                 ('D', 'Year, month, and day'),
 234                 ('M', 'Year and month'),
 235                 ('Y', 'Year'),
 236                 ('S', 'Slug only')
 237         )
 238
 239         newsletter = models.ForeignKey(Newsletter, related_name='newsletterviews')
 240
 241         index_page = models.ForeignKey(Page, related_name='newsletter_index_related')
 242         article_page = models.ForeignKey(Page, related_name='newsletter_article_related')
 243         article_archive_page = models.ForeignKey(Page, related_name='newsletter_article_archive_related', null=True, blank=True)
 244         issue_page = models.ForeignKey(Page, related_name='newsletter_issue_related')
 245         issue_archive_page = models.ForeignKey(Page, related_name='newsletter_issue_archive_related', null=True, blank=True)
 246
 247         article_permalink_style = models.CharField(max_length=1, choices=ARTICLE_PERMALINK_STYLE_CHOICES)
 248         article_permalink_base = models.CharField(max_length=255, blank=False, default='articles')
 249         issue_permalink_base = models.CharField(max_length=255, blank=False, default='issues')
 250
 251         def get_subpath(self, obj):
 252                 if isinstance(obj, NewsletterArticle):
 253                         if obj.newsletter == self.newsletter:
 254                                 article_view_args = {'slug': obj.slug}
 255                                 if self.article_permalink_style in 'DMY':
 256                                         article_view_args.update({'year': str(obj.date.year).zfill(4)})
 257                                         if self.article_permalink_style in 'DM':
 258                                                 article_view_args.update({'month': str(obj.date.month).zfill(2)})
 259                                                 if self.article_permalink_style == 'D':
 260                                                         article_view_args.update({'day': str(obj.date.day).zfill(2)})
 261                                 return reverse(self.article_view, urlconf=self, kwargs=article_view_args)
 262                 elif isinstance(obj, NewsletterIssue):
 263                         if obj.newsletter == self.newsletter:
 264                                 return reverse(self.issue_view, urlconf=self, kwargs={'number': str(obj.number)})
 265                 raise ViewCanNotProvideSubpath
 266
 267         @property
 268         def urlpatterns(self):
 269                 base_patterns = patterns('',
 270                         url(r'^$', self.index_view),
 271                         url((r'^(?:%s)/?$' % self.issue_permalink_base), self.issue_archive_view),
 272                         url((r'^(?:%s)/(?P<number>\d+)/?$' % self.issue_permalink_base), self.issue_view)
 273                 )
 274                 article_patterns = patterns('',
 275                         url((r'^(?:%s)/?$' % self.article_permalink_base), self.article_archive_view)
 276                 )
 277                 if self.article_permalink_style in 'DMY':
 278                         article_patterns += patterns('',
 279                                 url((r'^(?:%s)/(?P<year>\d{4})/?$' % self.article_permalink_base), self.article_archive_view)
 280                         )
 281                         if self.article_permalink_style in 'DM':
 282                                 article_patterns += patterns('',
 283                                         url((r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/?$' % self.article_permalink_base), self.article_archive_view)
 284                                 )
 285                                 if self.article_permalink_style == 'D':
 286                                         article_patterns += patterns('',
 287                                                 url((r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/?$' % self.article_permalink_base), self.article_archive_view),
 288                                                 url((r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{2})/(?P<slug>[-\w]+)/?$' % self.article_permalink_base), self.article_view)
 289                                         )
 290                                 else:
 291                                         article_patterns += patterns('',
 292                                                 url((r'^(?:%s)/(?P<year>\d{4})/(?P<month>\d{2})/(?P<slug>[-\w]+)/?$' % self.article_permalink_base), self.article_view)
 293                                         )
 294                         else:
 295                                 article_patterns += patterns('',
 296                                         url((r'^(?:%s)/(?P<year>\d{4})/(?P<slug>[-\w]+)/?$' % self.article_permalink_base), self.article_view)
 297                                 )
 298                 else:
 299                         article_patterns += patterns('',
 300                                 url((r'^(?:%s)/(?P<slug>[-\w]+)/?$' % self.article_permalink_base), self.article_view)
 301                         )
 302                 return base_patterns + article_patterns
 303
 304         def index_view(self, request, node=None, extra_context=None):
 305                 context = {}
 306                 context.update(extra_context or {})
 307                 context.update({'newsletter': self.newsletter})
 308                 return self.index_page.render_to_response(node, request, extra_context=context)
 309
 310         def article_view(self, request, slug, year=None, month=None, day=None, node=None, extra_context=None):
 311                 articles = self.newsletter.articles.all()
 312                 if year:
 313                         articles = articles.filter(date__year=year)
 314                 if month:
 315                         articles = articles.filter(date__month=month)
 316                 if day:
 317                         articles = articles.filter(date__day=day)
 318                 try:
 319                         article = articles.get(slug=slug)
 320                 except:
 321                         raise Http404
 322                 context = {}
 323                 context.update(extra_context or {})
 324                 context.update({'newsletter': self.newsletter, 'article': article})
 325                 return self.article_page.render_to_response(node, request, extra_context=context)
 326
 327         def article_archive_view(self, request, year=None, month=None, day=None, node=None, extra_context=None):
 328                 if not self.article_archive_page:
 329                         raise Http404
 330                 articles = self.newsletter.articles.all()
 331                 if year:
 332                         articles = articles.filter(date__year=year)
 333                 if month:
 334                         articles = articles.filter(date__month=month)
 335                 if day:
 336                         articles = articles.filter(date__day=day)
 337                 context = {}
 338                 context.update(extra_context or {})
 339                 context.update({'newsletter': self.newsletter, 'year': year, 'month': month, 'day': day, 'articles': articles})
 340                 return self.article_archive_page.render_to_response(node, request, extra_context=context)
 341
 342         def issue_view(self, request, number, node=None, extra_context=None):
 343                 try:
 344                         issue = self.newsletter.issues.get(number=number)
 345                 except:
 346                         raise Http404
 347                 context = {}
 348                 context.update(extra_context or {})
 349                 context.update({'newsletter': self.newsletter, 'issue': issue})
 350                 return self.issue_page.render_to_response(node, request, extra_context=context)
 351
 352         def issue_archive_view(self, request, node=None, extra_context=None):
 353                 if not self.issue_archive_page:
 354                         raise Http404
 355                 context = {}
 356                 context.update(extra_context or {})
 357                 context.update({'newsletter': self.newsletter})
 358                 return self.issue_archive_page.render_to_response(node, request, extra_context=context)