public domain counter:

[wolnelektury.git] / apps / catalogue / models.py

diff --git a/apps/catalogue/models.py b/apps/catalogue/models.py
index ac9a14c..b760ecc 100644 (file)
--- a/apps/catalogue/models.py
+++ b/apps/catalogue/models.py
@@ -10,6 +10,7 @@ from django.core.files import File
 from django.template.loader import render_to_string
 from django.utils.safestring import mark_safe
 from django.core.urlresolvers import reverse
+from datetime import datetime
 
 from newtagging.models import TagBase
 from newtagging import managers
@@ -50,6 +51,7 @@ class Tag(TagBase):
     
     user = models.ForeignKey(User, blank=True, null=True)
     book_count = models.IntegerField(_('book count'), default=0, blank=False, null=False)
+    death = models.IntegerField(_(u'year of death'), blank=True, null=True)
     gazeta_link = models.CharField(blank=True,  max_length=240)
     wiki_link = models.CharField(blank=True,  max_length=240)
     
@@ -58,6 +60,17 @@ class Tag(TagBase):
     has_description.short_description = _('description')
     has_description.boolean = True
 
+    def alive(self):
+        return self.death is None
+    
+    def in_pd(self):
+        """ tests whether an author is in public domain """
+        return self.death is not None and self.goes_to_pd() <= datetime.now().year
+    
+    def goes_to_pd(self):
+        """ calculates the year of public domain entry for an author """
+        return self.death + 71 if self.death is not None else None
+
     @permalink
     def get_absolute_url(self):
         return ('catalogue.views.tagged_object_list', [self.slug])
@@ -344,3 +357,31 @@ class Fragment(models.Model):
         verbose_name = _('fragment')
         verbose_name_plural = _('fragments')
 
+
+class BookStub(models.Model):
+    title = models.CharField(_('title'), max_length=120)
+    author = models.CharField(_('author'), max_length=120)
+    pd = models.IntegerField(_('goes to public domain'), null=True, blank=True)
+    slug = models.SlugField(_('slug'), max_length=120, unique=True, db_index=True)
+    translator = models.TextField(_('translator'), blank=True)
+    translator_death = models.TextField(_('year of translator\'s death'), blank=True)
+
+    def in_pd(self):
+        return self.pd is not None and self.pd <= datetime.now().year
+
+    @property
+    def name(self):
+        return self.title
+    
+    @permalink
+    def get_absolute_url(self):
+        return ('catalogue.views.book_detail', [self.slug])
+
+    def __unicode__(self):
+        return self.title
+    
+    class Meta:
+        ordering = ('title',)
+        verbose_name = _('book stub')
+        verbose_name_plural = _('book stubs')
+