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

diff --git a/apps/catalogue/models/book.py b/apps/catalogue/models/book.py
index c3c1369..4572655 100755 (executable)
--- a/apps/catalogue/models/book.py
+++ b/apps/catalogue/models/book.py
@@ -10,11 +10,12 @@ from django.utils.translation import ugettext_lazy as _
 from slughifi import slughifi
 
 import apiclient
 from slughifi import slughifi
 
 import apiclient

-from catalogue.helpers import cached_in_field
-from catalogue.models import BookPublishRecord, ChunkPublishRecord
+from catalogue.helpers import cached_in_field, GalleryMerger
+from catalogue.models import BookPublishRecord, ChunkPublishRecord, Project

 from catalogue.signals import post_publish
 from catalogue.tasks import refresh_instance, book_content_updated
 from catalogue.xml_tools import compile_text, split_xml
 from catalogue.signals import post_publish
 from catalogue.tasks import refresh_instance, book_content_updated
 from catalogue.xml_tools import compile_text, split_xml

+from cover.models import Image

 
 
 class Book(models.Model):
 
 
 class Book(models.Model):


@@ -23,18 +24,25 @@ 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)
     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)
+    gallery = models.CharField(u'materiały', max_length=255, blank=True)
+    project = models.ForeignKey(Project, null=True, 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", editable=False)
+    # 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", editable=False)

     parent_number = models.IntegerField(_('parent number'), null=True, blank=True, db_index=True, editable=False)
 
     parent_number = models.IntegerField(_('parent number'), null=True, blank=True, db_index=True, editable=False)
 

+    for_cybernauts = models.BooleanField(_('for Cybernauts'), default=False)
+

     # Cache
     _short_html = models.TextField(null=True, blank=True, editable=False)
     _single = models.NullBooleanField(editable=False, db_index=True)
     _new_publishable = models.NullBooleanField(editable=False)
     _published = models.NullBooleanField(editable=False)
     # Cache
     _short_html = models.TextField(null=True, blank=True, editable=False)
     _single = models.NullBooleanField(editable=False, db_index=True)
     _new_publishable = models.NullBooleanField(editable=False)
     _published = models.NullBooleanField(editable=False)

-    dc_slug = models.CharField(max_length=128, null=True, blank=True, editable=False)
+    _on_track = models.IntegerField(null=True, blank=True, db_index=True, editable=False)
+    dc_cover_image = models.ForeignKey(
+        Image, blank=True, null=True, db_index=True, on_delete=models.SET_NULL, 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


@@ -42,9 +50,8 @@ class Book(models.Model):
     class Meta:
         app_label = 'catalogue'
         ordering = ['title', 'slug']
     class Meta:
         app_label = 'catalogue'
         ordering = ['title', 'slug']

-        verbose_name = _('book')
-        verbose_name_plural = _('books')
-
+        verbose_name = u'moduł'
+        verbose_name_plural = u'moduły'

 
     # Representing
     # ============
 
     # Representing
     # ============


@@ -69,7 +76,7 @@ class Book(models.Model):
 
     @models.permalink
     def get_absolute_url(self):
 
     @models.permalink
     def get_absolute_url(self):

-        return ("catalogue_book", [self.slug])
+        return "catalogue_book", [self.slug]

 
     def correct_about(self):
         return "http://%s%s" % (
 
     def correct_about(self):
         return "http://%s%s" % (


@@ -85,8 +92,8 @@ class Book(models.Model):
 
     @classmethod
     @transaction.commit_on_success
 
     @classmethod
     @transaction.commit_on_success

-    def create(cls, creator, text, *args, **kwargs):
-        b = cls.objects.create(*args, **kwargs)
+    def create(cls, creator, text, **kwargs):
+        b = cls.objects.create(**kwargs)

         b.chunk_set.all().update(creator=creator)
         b[0].commit(text, author=creator)
         return b
         b.chunk_set.all().update(creator=creator)
         b[0].commit(text, author=creator)
         return b


@@ -97,8 +104,7 @@ class Book(models.Model):
 
     @classmethod
     @transaction.commit_on_success
 
     @classmethod
     @transaction.commit_on_success

-    def import_xml_text(cls, text=u'', previous_book=None,
-                commit_args=None, **kwargs):
+    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."""
         texts = split_xml(text)
         if previous_book:
         """Imports a book from XML, splitting it into chunks as necessary."""
         texts = split_xml(text)
         if previous_book:


@@ -112,7 +118,6 @@ class Book(models.Model):
         for i in range(book_len - len(texts)):
             texts.append((u'pusta część %d' % (i + 1), u''))
 
         for i in range(book_len - len(texts)):
             texts.append((u'pusta część %d' % (i + 1), u''))
 

-        i = 0

         for i, (title, text) in enumerate(texts):
             if not title:
                 title = u'część %d' % (i + 1)
         for i, (title, text) in enumerate(texts):
             if not title:
                 title = u'część %d' % (i + 1)


@@ -132,7 +137,7 @@ class Book(models.Model):
         return instance
 
     def make_chunk_slug(self, proposed):
         return instance
 
     def make_chunk_slug(self, proposed):

-        """ 
+        """

             Finds a chunk slug not yet used in the book.
         """
         slugs = set(c.slug for c in self)
             Finds a chunk slug not yet used in the book.
         """
         slugs = set(c.slug for c in self)


@@ -189,6 +194,17 @@ class Book(models.Model):
             chunk.save()
             number += 1
         assert not other.chunk_set.exists()
             chunk.save()
             number += 1
         assert not other.chunk_set.exists()

+
+        gm = GalleryMerger(self.gallery, other.gallery)
+        self.gallery = gm.merge()
+
+        # and move the gallery starts
+        if gm.was_merged:
+            for chunk in self[len(self) - len_other:]:
+                old_start = chunk.gallery_start or 1
+                chunk.gallery_start = old_start + gm.dest_size - gm.num_deleted
+                chunk.save()
+

         other.delete()
 
     @transaction.commit_on_success
         other.delete()
 
     @transaction.commit_on_success


@@ -207,6 +223,16 @@ class Book(models.Model):
         assert not other.chunk_set.exists()
         other.delete()
 
         assert not other.chunk_set.exists()
         other.delete()
 

+    def split(self):
+        """Splits all the chunks into separate books."""
+        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
     # =============


@@ -220,26 +246,34 @@ class Book(models.Model):
     def assert_publishable(self):
         assert self.chunk_set.exists(), _('No chunks in the book.')
         try:
     def assert_publishable(self):
         assert self.chunk_set.exists(), _('No chunks in the book.')
         try:

-            changes = self.get_current_changes(publishable=True)
+            changes = self.get_current_changes()

         except self.NoTextError:
             raise AssertionError(_('Not all chunks have publishable revisions.'))
         except self.NoTextError:
             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:
         from librarian import NoDublinCore, ParseError, ValidationError
 
         try:

-            bi = BookInfo.from_string(book_xml.encode('utf-8'))
+            bi = self.wldocument(changes=changes, strict=True).book_info
+            if not bi.audience:
+                raise ValidationError('No audience specified')
+            if not bi.type:
+                raise ValidationError('No type specified')

         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 = self.correct_about()
         assert bi.about == valid_about, _("rdf:about is not") + " " + valid_about
 
 
         valid_about = self.correct_about()
         assert bi.about == valid_about, _("rdf:about is not") + " " + valid_about
 

+    def publishable_error(self):
+        try:
+            return self.assert_publishable()
+        except AssertionError, e:
+            return e
+

     def hidden(self):
         return self.slug.startswith('.')
 
     def hidden(self):
         return self.slug.startswith('.')
 


@@ -266,6 +300,15 @@ 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)


@@ -276,25 +319,34 @@ class Book(models.Model):
 
     def book_info(self, publishable=True):
         try:
 
     def book_info(self, publishable=True):
         try:

-            book_xml = self.materialize(publishable=publishable)
+            book_xml = self.wl1_xml(publishable=publishable)

         except self.NoTextError:
             pass
         else:
             from librarian.dcparser import BookInfo
             from librarian import NoDublinCore, ParseError, ValidationError
             try:
         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'))
+                return BookInfo.from_string(book_xml)

             except (self.NoTextError, ParseError, NoDublinCore, ValidationError):
                 return None
 
     def refresh_dc_cache(self):
         update = {
             'dc_slug': None,
             except (self.NoTextError, ParseError, NoDublinCore, ValidationError):
                 return None
 
     def refresh_dc_cache(self):
         update = {
             'dc_slug': None,

+            'dc_cover_image': None,

         }
 
         info = self.book_info()
         if info is not None:
         }
 
         info = self.book_info()
         if info is not None:

-            update['dc_slug'] = info.slug
+            update['dc_slug'] = info.url.slug
+            if info.cover_source:
+                try:
+                    image = Image.objects.get(pk=int(info.cover_source.rstrip('/').rsplit('/', 1)[-1]))
+                except Image.DoesNotExist:
+                    pass
+                else:
+                    if info.cover_source == image.get_full_url():
+                        update['dc_cover_image'] = image

         Book.objects.filter(pk=self.pk).update(**update)
 
     def touch(self):
         Book.objects.filter(pk=self.pk).update(**update)
 
     def touch(self):


@@ -305,6 +357,7 @@ class Book(models.Model):
             "_new_publishable": self.is_new_publishable(),
             "_published": self.is_published(),
             "_single": self.is_single(),
             "_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)


@@ -335,7 +388,7 @@ class Book(models.Model):
         return changes
 
     def materialize(self, publishable=False, changes=None):
         return changes
 
     def materialize(self, publishable=False, changes=None):

-        """ 
+        """

             Get full text of the document compiled from chunks.
             Takes the current versions of all texts
             or versions most recently tagged for publishing,
             Get full text of the document compiled from chunks.
             Takes the current versions of all texts
             or versions most recently tagged for publishing,


@@ -345,16 +398,105 @@ 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 publish(self, user):
+    def wldocument(self, publishable=True, changes=None, parse_dublincore=True, strict=False):
+        from catalogue.ebook_utils import RedakcjaDocProvider
+        from librarian.parser import WLDocument
+
+        return WLDocument.from_string(
+                self.wl1_xml(publishable=publishable, changes=changes),
+                provider=RedakcjaDocProvider(publishable=publishable),
+                parse_dublincore=parse_dublincore,
+                strict=strict)
+
+    def publish(self, user, host=None):

         """
             Publishes a book on behalf of a (local) user.
         """
         """
             Publishes a book on behalf of a (local) user.
         """

+        import json
+        import os
+        from django.conf import settings

         self.assert_publishable()
         self.assert_publishable()

-        changes = self.get_current_changes(publishable=True)
-        book_xml = self.materialize(changes=changes)
-        apiclient.api_call(user, "books/", {"book_xml": book_xml})
+        changes = self.get_current_changes()
+        data = {"lesson_xml": self.wl1_xml(changes=changes)}
+        if host:
+            gallery_url = u'%s%s%s%s/' % (host, settings.MEDIA_URL, settings.IMAGE_DIR, self.slug)
+            gallery_dir = os.path.join(settings.MEDIA_ROOT, settings.IMAGE_DIR, self.slug)
+            if os.path.isdir(gallery_dir):
+                data['gallery_url'] = gallery_url
+                attachments = os.listdir(gallery_dir)
+            else:
+                attachments = []
+            data['attachments'] = json.dumps(attachments)
+        apiclient.api_call(user, "lessons/", data)

         # record the publish
         br = BookPublishRecord.objects.create(book=self, user=user)
         for c in changes:
             ChunkPublishRecord.objects.create(book_record=br, change=c)
         post_publish.send(sender=br)
         # record the publish
         br = BookPublishRecord.objects.create(book=self, user=user)
         for c in changes:
             ChunkPublishRecord.objects.create(book_record=br, change=c)
         post_publish.send(sender=br)

+
+    def wl1_xml(self, publishable=True, changes=None):
+        from lxml import etree
+        import re
+        from StringIO import StringIO
+        from urllib import unquote
+        import os.path
+        from django.conf import settings
+        from fnpdjango.utils.text.slughifi import slughifi
+        from librarian import ParseError, DCNS
+
+        def _register_function(f):
+            """ Register extension function with lxml """
+            ns = etree.FunctionNamespace('http://wolnelektury.pl/functions')
+            ns[f.__name__] = f
+            return f
+
+        @_register_function
+        def slugify(context, text):
+            """Remove unneeded whitespace from beginning and end"""
+            if isinstance(text, list):
+                text = ''.join(text)
+            return slughifi(text)
+
+        @_register_function
+        def rmext(context, text):
+            if isinstance(text, list):
+                text = ''.join(text)
+            text = unquote(text)
+            if '.' in text:
+                name, ext = text.rsplit('.', 1)
+                if ext.lower() in ('doc', 'docx', 'odt', 'pdf', 'jpg', 'jpeg'):
+                    text = name
+            return text
+
+        t = etree.parse(os.path.join(settings.PROJECT_ROOT, 'xslt/wl2to1.xslt'))
+        ft = self.materialize(publishable=publishable, changes=changes)
+        ft = ft.replace(' ', ' ')
+        f2 = StringIO(ft)
+        i1 = etree.parse(f2)
+
+        for sect in i1.findall('//section'):
+            if sect[0].text and sect[0].text.strip() == u'Przebieg zajęć':
+                # Prostujemy.
+                first = sect.find('section')
+                subs = first.findall('.//section')
+                for sub in subs:
+                    sect.append(sub)
+                break
+        else:
+            # print 'BRAK PRZEBIEGU'
+            dc_type = i1.findall('//dc:type', namespaces={'dc': DCNS.uri})
+            if dc_type and dc_type[0] in ('course', 'synthetic'):
+                raise ParseError('Brak przebiegu')
+
+        i1.getroot().attrib['redslug'] = self.slug
+        i1.getroot().attrib['wlslug'] = self.slug  # THIS!
+        # print '.',
+        w1t = i1.xslt(t)
+        for h in w1t.findall('//aktywnosc/opis'):
+            if len(h) == 0:
+                raise ParseError('Pusty element aktywnosc/opis')
+            # FIXME assumption that every lesson has at most 9 parts
+            if not h[0].text or not re.match(r'\d\.\s', h[0].text):
+                raise ParseError('Niepoprawny nagłówek (aktywnosc/opis): %s' % repr(h[0].text))
+            h[0].text = h[0].text[3:]
+        return etree.tostring(w1t, encoding='utf-8')