prettier history view

[redakcja.git] / apps / catalogue / models / book.py

diff --git a/apps/catalogue/models/book.py b/apps/catalogue/models/book.py
index f4e025e..8c9e6e6 100755 (executable)
--- a/apps/catalogue/models/book.py
+++ b/apps/catalogue/models/book.py
@@ -4,7 +4,7 @@
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
 from django.contrib.sites.models import Site
-from django.db import models
+from django.db import models, transaction
 from django.template.loader import render_to_string
 from django.utils.translation import ugettext_lazy as _
 from slughifi import slughifi
@@ -24,11 +24,12 @@ class Book(models.Model):
 
     title = models.CharField(_('title'), max_length=255, db_index=True)
     slug = models.SlugField(_('slug'), max_length=128, unique=True, db_index=True)
+    public = models.BooleanField(_('public'), default=True, db_index=True)
     gallery = models.CharField(_('scan gallery name'), max_length=255, blank=True)
 
     #wl_slug = models.CharField(_('title'), max_length=255, null=True, db_index=True, editable=False)
-    parent = models.ForeignKey('self', null=True, blank=True, verbose_name=_('parent'), related_name="children")
-    parent_number = models.IntegerField(_('parent number'), null=True, blank=True, db_index=True)
+    parent = models.ForeignKey('self', null=True, blank=True, verbose_name=_('parent'), related_name="children", editable=False)
+    parent_number = models.IntegerField(_('parent number'), null=True, blank=True, db_index=True, editable=False)
 
     # Cache
     _short_html = models.TextField(null=True, blank=True, editable=False)
@@ -36,15 +37,12 @@ class Book(models.Model):
     _new_publishable = models.NullBooleanField(editable=False)
     _published = models.NullBooleanField(editable=False)
 
-    # Managers
-    objects = models.Manager()
-
     class NoTextError(BaseException):
         pass
 
     class Meta:
         app_label = 'catalogue'
-        ordering = ['parent_number', 'title']
+        ordering = ['title', 'slug']
         verbose_name = _('book')
         verbose_name_plural = _('books')
 
@@ -74,11 +72,20 @@ class Book(models.Model):
     def get_absolute_url(self):
         return ("catalogue_book", [self.slug])
 
+    def correct_about(self):
+        return "http://%s%s" % (
+            Site.objects.get_current().domain,
+            self.get_absolute_url()
+        )
 
     # Creating & manipulating
     # =======================
 
+    def accessible(self, request):
+        return self.public or request.user.is_authenticated()
+
     @classmethod
+    @transaction.commit_on_success
     def create(cls, creator, text, *args, **kwargs):
         b = cls.objects.create(*args, **kwargs)
         b.chunk_set.all().update(creator=creator)
@@ -90,6 +97,7 @@ class Book(models.Model):
         return self.chunk_set.reverse()[0].split(*args, **kwargs)
 
     @classmethod
+    @transaction.commit_on_success
     def import_xml_text(cls, text=u'', previous_book=None,
                 commit_args=None, **kwargs):
         """Imports a book from XML, splitting it into chunks as necessary."""
@@ -130,14 +138,17 @@ class Book(models.Model):
         """
         slugs = set(c.slug for c in self)
         i = 1
-        new_slug = proposed
+        new_slug = proposed[:50]
         while new_slug in slugs:
-            new_slug = "%s_%d" % (proposed, i)
+            new_slug = "%s_%d" % (proposed[:45], i)
             i += 1
         return new_slug
 
+    @transaction.commit_on_success
     def append(self, other, slugs=None, titles=None):
         """Add all chunks of another book to self."""
+        assert self != other
+
         number = self[len(self) - 1].number + 1
         len_other = len(other)
         single = len_other == 1
@@ -166,12 +177,11 @@ class Book(models.Model):
                     # just use the guessed title and original book slug
                     chunk.title = other_title_part
                     if other.slug.startswith(self.slug):
-                        chunk_slug = other.slug[len(self.slug):].lstrip('-_')
+                        chunk.slug = other.slug[len(self.slug):].lstrip('-_')
                     else:
-                        chunk_slug = other.slug
-                    chunk.slug = self.make_chunk_slug(chunk_slug)
+                        chunk.slug = other.slug
                 else:
-                    chunk.title = "%s, %s" % (other_title_part, chunk.title)
+                    chunk.title = ("%s, %s" % (other_title_part, chunk.title))[:255]
             else:
                 chunk.slug = slugs[i]
                 chunk.title = titles[i]
@@ -179,6 +189,23 @@ class Book(models.Model):
             chunk.slug = self.make_chunk_slug(chunk.slug)
             chunk.save()
             number += 1
+        assert not other.chunk_set.exists()
+        other.delete()
+
+    @transaction.commit_on_success
+    def prepend_history(self, other):
+        """Prepend history from all the other book's chunks to own."""
+        assert self != other
+
+        for i in range(len(self), len(other)):
+            title = u"pusta część %d" % i
+            chunk = self.add(slughifi(title), title)
+            chunk.commit('')
+
+        for i in range(len(other)):
+            self[i].prepend_history(other[0])
+
+        assert not other.chunk_set.exists()
         other.delete()
 
 
@@ -208,7 +235,7 @@ class Book(models.Model):
         except ValidationError, e:
             raise AssertionError(_('Invalid Dublin Core') + ': ' + str(e))
 
-        valid_about = "http://%s%s" % (Site.objects.get_current().domain, self.get_absolute_url())
+        valid_about = self.correct_about()
         assert bi.about == valid_about, _("rdf:about is not") + " " + valid_about
 
     def hidden(self):