appending a book. TODO: remove old dir, remove dupes.

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

diff --git a/apps/catalogue/models/book.py b/apps/catalogue/models/book.py
index 94a9833..098781d 100755 (executable)
--- a/apps/catalogue/models/book.py
+++ b/apps/catalogue/models/book.py
@@ -4,20 +4,22 @@
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
 from django.contrib.sites.models import Site
 # 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 django.template.loader import render_to_string
 from django.utils.translation import ugettext_lazy as _

+from django.conf import settings

 from slughifi import slughifi
 from slughifi import slughifi

-from librarian import NoDublinCore, ParseError, ValidationError
-from librarian.dcparser import BookInfo
+

 
 import apiclient
 from catalogue.helpers import cached_in_field
 from catalogue.models import BookPublishRecord, ChunkPublishRecord
 from catalogue.signals import post_publish
 
 import apiclient
 from catalogue.helpers import cached_in_field
 from catalogue.models import BookPublishRecord, ChunkPublishRecord
 from catalogue.signals import post_publish

-from catalogue.tasks import refresh_instance
+from catalogue.tasks import refresh_instance, book_content_updated

 from catalogue.xml_tools import compile_text, split_xml
 from catalogue.xml_tools import compile_text, split_xml

-
+import os
+import shutil
+import re

 
 class Book(models.Model):
     """ A document edited on the wiki """
 
 class Book(models.Model):
     """ A document edited on the wiki """


@@ -36,6 +38,9 @@ class Book(models.Model):
     _single = models.NullBooleanField(editable=False, db_index=True)
     _new_publishable = models.NullBooleanField(editable=False)
     _published = models.NullBooleanField(editable=False)
     _single = models.NullBooleanField(editable=False, db_index=True)
     _new_publishable = models.NullBooleanField(editable=False)
     _published = models.NullBooleanField(editable=False)

+    _on_track = models.IntegerField(null=True, blank=True, db_index=True, editable=False)
+    dc_slug = models.CharField(max_length=128, null=True, blank=True,
+            editable=False, db_index=True)

 
     class NoTextError(BaseException):
         pass
 
     class NoTextError(BaseException):
         pass


@@ -72,6 +77,11 @@ class Book(models.Model):
     def get_absolute_url(self):
         return ("catalogue_book", [self.slug])
 
     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
     # =======================
 
     # Creating & manipulating
     # =======================


@@ -80,6 +90,7 @@ class Book(models.Model):
         return self.public or request.user.is_authenticated()
 
     @classmethod
         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)
     def create(cls, creator, text, *args, **kwargs):
         b = cls.objects.create(*args, **kwargs)
         b.chunk_set.all().update(creator=creator)


@@ -91,6 +102,7 @@ class Book(models.Model):
         return self.chunk_set.reverse()[0].split(*args, **kwargs)
 
     @classmethod
         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."""
     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."""


@@ -137,6 +149,7 @@ class Book(models.Model):
             i += 1
         return new_slug
 
             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
     def append(self, other, slugs=None, titles=None):
         """Add all chunks of another book to self."""
         assert self != other


@@ -182,8 +195,118 @@ class Book(models.Model):
             chunk.save()
             number += 1
         assert not other.chunk_set.exists()
             chunk.save()
             number += 1
         assert not other.chunk_set.exists()

+
+        self.append_gallery(other, len_other)
+        
+        other.delete()
+
+
+    def append_gallery(self, other, len_other):
+        if self.gallery is None:
+            self.gallery = other.gallery
+            return
+        if other.gallery is None:
+            return
+        
+        def get_prefix(name):
+            m = re.match(r"^([0-9])-", name)
+            if m:
+                return int(m.groups()[0])
+            return None
+        
+        def set_prefix(name, prefix, always=False):
+            m = not always and re.match(r"^([0-9])-", name)
+            return "%1d-%s" % (prefix, m and name[2:] or name)
+
+        files = os.listdir(os.path.join(settings.MEDIA_ROOT,
+                                        settings.IMAGE_DIR, self.gallery))
+        files_other = os.listdir(os.path.join(settings.MEDIA_ROOT,
+                                              settings.IMAGE_DIR, other.gallery))
+
+        prefixes = {}
+        renamed_files = {}
+        renamed_files_other = {}
+        last_pfx = -1
+
+        # check if all elements of my files have a prefix
+        files_prefixed = True
+        for f in files:
+            p = get_prefix(f)
+            if p:
+                if p > last_pfx: last_pfx = p
+            else:
+                files_prefixed = False
+                break
+
+        # if not, add a 0 prefix to them
+        if not files_prefixed:
+            prefixes[0] = 0
+            for f in files:
+                renamed_files[f] = set_prefix(f, 0, True)
+
+        # two cases here - either all are prefixed or not.
+        files_other_prefixed = True
+        for f in files_other:
+            pfx = get_prefix(f)
+            if pfx is not None:
+                if not pfx in prefixes:
+                    last_pfx += 1
+                    prefixes[pfx] = last_pfx
+                renamed_files_other[f] = set_prefix(f, prefixes[pfx])
+            else:
+                # ops, not all files here were prefixed.
+                files_other_prefixed = False
+                break
+
+        # just set a 1- prefix to all of them
+        if not files_other_prefixed:
+            for f in files_other:
+                renamed_files_other[f] = set_prefix(f, 1, True)
+
+        # finally, move / rename files.
+        for frm, to in renamed_files.items():
+            shutil.move(os.path.join(settings.MEDIA_ROOT, settings.IMAGE_DIR, self.gallery, frm),
+                        os.path.join(settings.MEDIA_ROOT, settings.IMAGE_DIR, self.gallery, to))
+        for frm, to in renamed_files_other.items():
+            shutil.move(os.path.join(settings.MEDIA_ROOT, settings.IMAGE_DIR, other.gallery, frm),
+                        os.path.join(settings.MEDIA_ROOT, settings.IMAGE_DIR, self.gallery, to))            
+
+        # and move the gallery starts
+        num_files = len(files)
+        for chunk in self[len(self) - len_other:]:
+            chunk.gallery_start += num_files
+            chunk.save()
+            
+
+
+    @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()
 
         other.delete()
 

+    def split(self):
+        """Splits all the chunks into separate books."""
+        self.title
+        for chunk in self:
+            book = Book.objects.create(title=chunk.title, slug=chunk.slug,
+                    public=self.public, gallery=self.gallery)
+            book[0].delete()
+            chunk.book = book
+            chunk.number = 1
+            chunk.save()
+        assert not self.chunk_set.exists()
+        self.delete()

 
     # State & cache
     # =============
 
     # State & cache
     # =============


@@ -202,16 +325,19 @@ class Book(models.Model):
             raise AssertionError(_('Not all chunks have publishable revisions.'))
         book_xml = self.materialize(changes=changes)
 
             raise AssertionError(_('Not all chunks have publishable revisions.'))
         book_xml = self.materialize(changes=changes)
 

+        from librarian.dcparser import BookInfo
+        from librarian import NoDublinCore, ParseError, ValidationError
+

         try:
         try:

-            bi = BookInfo.from_string(book_xml.encode('utf-8'))
+            bi = BookInfo.from_string(book_xml.encode('utf-8'), strict=True)

         except ParseError, e:
         except ParseError, e:

-            raise AssertionError(_('Invalid XML') + ': ' + str(e))
+            raise AssertionError(_('Invalid XML') + ': ' + unicode(e))

         except NoDublinCore:
             raise AssertionError(_('No Dublin Core found.'))
         except ValidationError, e:
         except NoDublinCore:
             raise AssertionError(_('No Dublin Core found.'))
         except ValidationError, e:

-            raise AssertionError(_('Invalid Dublin Core') + ': ' + str(e))
+            raise AssertionError(_('Invalid Dublin Core') + ': ' + unicode(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):
         assert bi.about == valid_about, _("rdf:about is not") + " " + valid_about
 
     def hidden(self):


@@ -240,6 +366,16 @@ class Book(models.Model):
         return self.publish_log.exists()
     published = cached_in_field('_published')(is_published)
 
         return self.publish_log.exists()
     published = cached_in_field('_published')(is_published)
 

+    def get_on_track(self):
+        if self.published:
+            return -1
+        stages = [ch.stage.ordering if ch.stage is not None else 0
+                    for ch in self]
+        if not len(stages):
+            return 0
+        return min(stages)
+    on_track = cached_in_field('_on_track')(get_on_track)
+

     def is_single(self):
         return len(self) == 1
     single = cached_in_field('_single')(is_single)
     def is_single(self):
         return len(self) == 1
     single = cached_in_field('_single')(is_single)


@@ -248,11 +384,38 @@ class Book(models.Model):
     def short_html(self):
         return render_to_string('catalogue/book_list/book.html', {'book': self})
 
     def short_html(self):
         return render_to_string('catalogue/book_list/book.html', {'book': self})
 

+    def book_info(self, publishable=True):
+        try:
+            book_xml = self.materialize(publishable=publishable)
+        except self.NoTextError:
+            pass
+        else:
+            from librarian.dcparser import BookInfo
+            from librarian import NoDublinCore, ParseError, ValidationError
+            try:
+                return BookInfo.from_string(book_xml.encode('utf-8'))
+            except (self.NoTextError, ParseError, NoDublinCore, ValidationError):
+                return None
+
+    def refresh_dc_cache(self):
+        update = {
+            'dc_slug': None,
+        }
+
+        info = self.book_info()
+        if info is not None:
+            update['dc_slug'] = info.url.slug
+        Book.objects.filter(pk=self.pk).update(**update)
+

     def touch(self):
     def touch(self):

+        # this should only really be done when text or publishable status changes
+        book_content_updated.delay(self)
+

         update = {
             "_new_publishable": self.is_new_publishable(),
             "_published": self.is_published(),
             "_single": self.is_single(),
         update = {
             "_new_publishable": self.is_new_publishable(),
             "_published": self.is_published(),
             "_single": self.is_single(),

+            "_on_track": self.get_on_track(),

             "_short_html": None,
         }
         Book.objects.filter(pk=self.pk).update(**update)
             "_short_html": None,
         }
         Book.objects.filter(pk=self.pk).update(**update)


@@ -293,6 +456,15 @@ class Book(models.Model):
             changes = self.get_current_changes(publishable)
         return compile_text(change.materialize() for change in changes)
 
             changes = self.get_current_changes(publishable)
         return compile_text(change.materialize() for change in changes)
 

+    def wldocument(self, publishable=True, changes=None, parse_dublincore=True):
+        from catalogue.ebook_utils import RedakcjaDocProvider
+        from librarian.parser import WLDocument
+
+        return WLDocument.from_string(
+                self.materialize(publishable=publishable, changes=changes),
+                provider=RedakcjaDocProvider(publishable=publishable),
+                parse_dublincore=parse_dublincore)
+

     def publish(self, user):
         """
             Publishes a book on behalf of a (local) user.
     def publish(self, user):
         """
             Publishes a book on behalf of a (local) user.